.github/workflows/generic-testing.yml

@@ -0,0 +1,199 @@
+name: Test the stack.
+on:
+  workflow_call:
+    inputs:
+      stack-orchestrator-ref:
+        required: false
+        type: string
+      ipld-eth-beacon-db-ref:
+        required: false
+        type: string
+      ssz-data-ref:
+        required: false
+        type: string
+    secrets:
+      GHA_KEY:
+        required: true
+
+env:
+  stack-orchestrator-ref: ${{ inputs.stack-orchestrator-ref || '7fb664270a0ba09e2caa3095e8c91f3fdb5b38af' }}
+  ipld-eth-beacon-db-ref: ${{ inputs.ipld-eth-beacon-db-ref  || '3dfe416302d553f8240f6051c08a7899b0e39e12' }}
+  ssz-data-ref: ${{ inputs.ssz-data-ref || 'main' }}
+  GOPATH: /tmp/go
+jobs:
+  build:
+    name: Run Docker Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          path: "./ipld-eth-beacon-indexer"
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.stack-orchestrator-ref }}
+          path: "./stack-orchestrator/"
+          repository: vulcanize/stack-orchestrator
+          fetch-depth: 0
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.ipld-eth-beacon-db-ref }}
+          repository: vulcanize/ipld-eth-beacon-db
+          path: "./ipld-eth-beacon-db/"
+          ssh-key: ${{secrets.GHA_KEY}}
+          fetch-depth: 0
+
+      - name: Create config file
+        run: |
+          echo vulcanize_ipld_eth_beacon_db=$GITHUB_WORKSPACE/ipld-eth-beacon-db/ > ./config.sh
+          echo vulcanize_ipld_eth_beacon_indexer=$GITHUB_WORKSPACE/ipld-eth-beacon-indexer >> ./config.sh
+          echo eth_beacon_config_file=$GITHUB_WORKSPACE/ipld-eth-beacon-indexer/config/cicd/boot.ipld-eth-beacon-indexer.json >> ./config.sh
+          cat ./config.sh
+
+      - name: Run docker compose
+        run: |
+          docker-compose  \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml" \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/latest/docker-compose-lighthouse.yml" \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-indexer.yml" \
+          --env-file ./config.sh \
+          up -d --build
+
+      - name: Check to make sure HEALTH file is present
+        shell: bash
+        run: |
+          until $(docker compose -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-indexer.yml" --env-file ./config.sh cp ipld-eth-beacon-indexer:/root/HEALTH ./HEALTH) ; do sleep 10; done
+          cat ./HEALTH
+          if [[ "$(cat ./HEALTH)" -eq "0" ]]; then echo "Application boot successful" && (exit 0); else docker compose -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-indexer.yml" cp ipld-eth-beacon-indexer:/root/ipld-eth-beacon-indexer.log . && cat ipld-eth-beacon-indexer.log && (exit 1); fi
+
+  unit-test:
+    name: Run Unit Tests
+    runs-on: ubuntu-latest
+    ## IF you want to update the default branch for `pull_request runs, do it after the ||`
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/checkout@v2
+        with:
+          path: "./ipld-eth-beacon-indexer"
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.stack-orchestrator-ref }}
+          path: "./stack-orchestrator/"
+          repository: vulcanize/stack-orchestrator
+          fetch-depth: 0
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.ipld-eth-beacon-db-ref }}
+          repository: vulcanize/ipld-eth-beacon-db
+          path: "./ipld-eth-beacon-db/"
+          ssh-key: ${{ secrets.GHA_KEY }}
+          fetch-depth: 0
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.ssz-data-ref }}
+          repository: vulcanize/ssz-data
+          path: "./ipld-eth-beacon-indexer/pkg/beaconclient/ssz-data"
+          fetch-depth: 0
+
+      - name: Create config file
+        run: |
+          echo vulcanize_ipld_eth_beacon_db=$GITHUB_WORKSPACE/ipld-eth-beacon-db/ > ./config.sh
+          echo vulcanize_ipld_eth_beacon_indexer=$GITHUB_WORKSPACE/ipld-eth-beacon-indexer >> ./config.sh
+          cat ./config.sh
+
+      - name: Run docker compose
+        run: |
+          docker-compose  \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml" \
+          --env-file ./config.sh \
+          up -d --build
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Install packages
+        run: |
+          go install github.com/onsi/ginkgo/v2/ginkgo@latest
+          which ginkgo
+
+      - name: Run the tests using Make
+        run: |
+          cd ipld-eth-beacon-indexer
+          make unit-test-ci
+
+  integration-test:
+    name: Run Integration Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/checkout@v2
+        with:
+          path: "./ipld-eth-beacon-indexer"
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.stack-orchestrator-ref }}
+          path: "./stack-orchestrator/"
+          repository: vulcanize/stack-orchestrator
+          fetch-depth: 0
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.ipld-eth-beacon-db-ref }}
+          repository: vulcanize/ipld-eth-beacon-db
+          path: "./ipld-eth-beacon-db/"
+          ssh-key: ${{secrets.GHA_KEY}}
+          fetch-depth: 0
+
+      - name: Create config file
+        run: |
+          echo vulcanize_ipld_eth_beacon_db=$GITHUB_WORKSPACE/ipld-eth-beacon-db/ > ./config.sh
+          echo vulcanize_ipld_eth_beacon_indexer=$GITHUB_WORKSPACE/ipld-eth-beacon-indexer >> ./config.sh
+          echo eth_beacon_capture_mode=boot >> ./config.sh
+          cat ./config.sh
+
+      - name: Run docker compose
+        run: |
+          docker-compose  \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml" \
+          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/latest/docker-compose-lighthouse.yml" \
+          --env-file ./config.sh \
+          up -d --build
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Install packages
+        run: |
+          go install github.com/onsi/ginkgo/v2/ginkgo@latest
+          which ginkgo
+
+      - name: Run the tests using Make
+        run: |
+          cd ipld-eth-beacon-indexer
+          make integration-test-ci
+
+  golangci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+      - uses: actions/checkout@v3
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          args: --timeout 90s --disable deadcode,unused
+#          args: --timeout 90s --disable deadcode,

.github/workflows/on-pr.yml

@@ -7,8 +7,8 @@ on:
         description: "The branch, commit or sha from stack-orchestrator to checkout"
         required: false
         default: "main"
-      ipld-ethcl-db-ref:
+      ipld-eth-beacon-db-ref:
-        description: "The branch, commit or sha from ipld-ethcl-db to checkout"
+        description: "The branch, commit or sha from ipld-eth-beacon-db to checkout"
         required: false
         default: "main"
       ssz-data-ref:
@@ -22,188 +22,26 @@ on:
       - "!LICENSE"
       - "!.github/workflows/**"
       - ".github/workflows/on-pr.yml"
+      - ".github/workflows/tests.yml"
       - "**"
+  schedule:
+    - cron: '0 13 * * *' # Must be single quotes!!
 
-env:
-  stack-orchestrator-ref: ${{ github.event.inputs.stack-orchestrator-ref  || 'feature/client-build'}}
-  ipld-ethcl-db-ref: ${{ github.event.inputs.ipld-ethcl-db-ref  || 'feature/schema-ipld-ethcl-indexer' }}
-  ssz-data-ref: ${{ github.event.inputs.ssz-data-ref  || 'main' }}
-  GOPATH: /tmp/go
 jobs:
-  build:
+  trigger-tests:
-    name: Run Docker Build
+    if: github.event_name != 'schedule'
-    runs-on: ubuntu-latest
+    uses: ./.github/workflows/generic-testing.yml
-    steps:
-      - uses: actions/checkout@v2
     with:
-          path: "./ipld-ethcl-indexer"
+      stack-orchestrator-ref: ${{ github.event.inputs.stack-orchestrator-ref }}
-
+      ipld-eth-beacon-db-ref: ${{ github.event.inputs.ipld-eth-beacon-db-ref }}
-      - uses: actions/checkout@v3
+      ssz-data-ref: ${{ github.event.inputs.ssz-data-ref }}
+    secrets:
+      GHA_KEY: ${{secrets.GHA_KEY}}
+  system-testing:
+    uses: ./.github/workflows/system-tests.yml
     with:
-          ref: ${{ env.stack-orchestrator-ref }}
+      stack-orchestrator-ref: ${{ github.event.inputs.stack-orchestrator-ref }}
-          path: "./stack-orchestrator/"
+      ipld-eth-beacon-db-ref: ${{ github.event.inputs.ipld-eth-beacon-db-ref }}
-          repository: vulcanize/stack-orchestrator
+    secrets:
-          fetch-depth: 0
+      GHA_KEY: ${{secrets.GHA_KEY}}
-
+      BC_ADDRESS: ${{secrets.BC_ADDRESS}}
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.ipld-ethcl-db-ref }}
-          repository: vulcanize/ipld-ethcl-db
-          path: "./ipld-ethcl-db/"
-          token: ${{ secrets.GH_PAT }}
-          fetch-depth: 0
-
-      - name: Create config file
-        run: |
-          echo vulcanize_ipld_ethcl_db=$GITHUB_WORKSPACE/ipld-ethcl-db/ > ./config.sh
-          echo vulcanize_ipld_ethcl_indexer=$GITHUB_WORKSPACE/ipld-ethcl-indexer >> ./config.sh
-          echo ethcl_capture_mode=boot >> ./config.sh
-          echo ethcl_skip_sync=true >> ./config.sh
-          echo ethcl_known_gap_increment=1000000 >> ./config.sh
-          cat ./config.sh
-
-      - name: Run docker compose
-        run: |
-          docker-compose  \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ethcl-db.yml" \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/latest/docker-compose-lighthouse.yml" \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-ethcl-indexer.yml" \
-          --env-file ./config.sh \
-          up -d --build
-
-      - name: Check to make sure HEALTH file is present
-        shell: bash
-        run: |
-          until $(docker compose -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-ethcl-indexer.yml" cp ipld-ethcl-indexer:/root/HEALTH ./HEALTH) ; do sleep 10; done
-          cat ./HEALTH
-          if [[ "$(cat ./HEALTH)" -eq "0" ]]; then echo "Application boot successful" && (exit 0); else docker compose -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ipld-ethcl-indexer.yml" cp ipld-ethcl-indexer:/root/ipld-ethcl-indexer.log . && cat ipld-ethcl-indexer.log && (exit 1); fi
-
-  unit-test:
-    name: Run Unit Tests
-    runs-on: ubuntu-latest
-    ## IF you want to update the default branch for `pull_request runs, do it after the ||`
-    steps:
-      - name: Create GOPATH
-        run: mkdir -p /tmp/go
-
-      - uses: actions/checkout@v2
-        with:
-          path: "./ipld-ethcl-indexer"
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.stack-orchestrator-ref }}
-          path: "./stack-orchestrator/"
-          repository: vulcanize/stack-orchestrator
-          fetch-depth: 0
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.ipld-ethcl-db-ref }}
-          repository: vulcanize/ipld-ethcl-db
-          path: "./ipld-ethcl-db/"
-          token: ${{ secrets.GH_PAT }}
-          fetch-depth: 0
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.ssz-data-ref }}
-          repository: vulcanize/ssz-data
-          path: "./ipld-ethcl-indexer/pkg/beaconclient/ssz-data"
-          fetch-depth: 0
-
-      - name: Create config file
-        run: |
-          echo vulcanize_ipld_ethcl_db=$GITHUB_WORKSPACE/ipld-ethcl-db/ > ./config.sh
-          echo vulcanize_ipld_ethcl_indexer=$GITHUB_WORKSPACE/ipld-ethcl-indexer >> ./config.sh
-          cat ./config.sh
-
-      - name: Run docker compose
-        run: |
-          docker-compose  \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ethcl-db.yml" \
-          --env-file ./config.sh \
-          up -d --build
-
-      - uses: actions/setup-go@v3
-        with:
-          go-version: ">=1.17.0"
-          check-latest: true
-
-      - name: Install packages
-        run: |
-          go install github.com/onsi/ginkgo/v2/ginkgo@latest
-          which ginkgo
-
-      - name: Run the tests using Make
-        run: |
-          cd ipld-ethcl-indexer
-          make unit-test-ci
-
-  integration-test:
-    name: Run Integration Tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Create GOPATH
-        run: mkdir -p /tmp/go
-
-      - uses: actions/checkout@v2
-        with:
-          path: "./ipld-ethcl-indexer"
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.stack-orchestrator-ref }}
-          path: "./stack-orchestrator/"
-          repository: vulcanize/stack-orchestrator
-          fetch-depth: 0
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ env.ipld-ethcl-db-ref }}
-          repository: vulcanize/ipld-ethcl-db
-          path: "./ipld-ethcl-db/"
-          token: ${{ secrets.GH_PAT }}
-          fetch-depth: 0
-
-      - name: Create config file
-        run: |
-          echo vulcanize_ipld_ethcl_db=$GITHUB_WORKSPACE/ipld-ethcl-db/ > ./config.sh
-          echo vulcanize_ipld_ethcl_indexer=$GITHUB_WORKSPACE/ipld-ethcl-indexer >> ./config.sh
-          echo ethcl_capture_mode=boot >> ./config.sh
-          cat ./config.sh
-
-      - name: Run docker compose
-        run: |
-          docker-compose  \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/local/docker-compose-ethcl-db.yml" \
-          -f "$GITHUB_WORKSPACE/stack-orchestrator/docker/latest/docker-compose-lighthouse.yml" \
-          --env-file ./config.sh \
-          up -d --build
-
-      - uses: actions/setup-go@v3
-        with:
-          go-version: ">=1.17.0"
-          check-latest: true
-
-      - name: Install packages
-        run: |
-          go install github.com/onsi/ginkgo/v2/ginkgo@latest
-          which ginkgo
-
-      - name: Run the tests using Make
-        run: |
-          cd ipld-ethcl-indexer
-          make integration-test-ci
-
-  golangci:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/setup-go@v3
-        with:
-          go-version: ">=1.17.0"
-      - uses: actions/checkout@v3
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
-        with:
-          args: --timeout 90s

.github/workflows/on-publish.yml

@@ -3,9 +3,28 @@ on:
   release:
     types: [published, edited]
 jobs:
+  trigger-tests:
+    uses: ./.github/workflows/generic-testing.yml
+    with:
+      stack-orchestrator-ref: ${{ github.event.inputs.stack-orchestrator-ref }}
+      ipld-eth-beacon-db-ref: ${{ github.event.inputs.ipld-eth-beacon-db-ref }}
+      ssz-data-ref: ${{ github.event.inputs.ssz-data-ref }}
+    secrets:
+      GHA_KEY: ${{secrets.GHA_KEY}}
+  system-testing:
+    uses: ./.github/workflows/system-tests.yml
+    with:
+      stack-orchestrator-ref: ${{ github.event.inputs.stack-orchestrator-ref }}
+      ipld-eth-beacon-db-ref: ${{ github.event.inputs.ipld-eth-beacon-db-ref }}
+    secrets:
+      GHA_KEY: ${{secrets.GHA_KEY}}
+      BC_ADDRESS: ${{secrets.BC_ADDRESS}}
   build:
     name: Run docker build
     runs-on: ubuntu-latest
+    needs:
+      - trigger-tests
+      - system-testing
     steps:
       - uses: actions/checkout@v2
       - name: Get the version
@@ -14,11 +33,11 @@ jobs:
       - name: Run docker build
         run: make docker-build
       - name: Tag docker image
-        run: docker tag vulcanize/ipld-ethcl-indexer docker.pkg.github.com/vulcanize/ipld-ethcl-indexer/ipld-ethcl-indexer:${{steps.vars.outputs.sha}}
+        run: docker tag vulcanize/ipld-eth-beacon-indexer docker.pkg.github.com/vulcanize/ipld-eth-beacon-indexer/ipld-eth-beacon-indexer:${{steps.vars.outputs.sha}}
       - name: Docker Login
         run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
       - name: Docker Push
-        run: docker push docker.pkg.github.com/vulcanize/ipld-ethcl-indexer/ipld-ethcl-indexer:${{steps.vars.outputs.sha}}
+        run: docker push docker.pkg.github.com/vulcanize/ipld-eth-beacon-indexer/ipld-eth-beacon-indexer:${{steps.vars.outputs.sha}}
   push_to_registries:
     name: Push Docker image to Docker Hub
     runs-on: ubuntu-latest
@@ -32,10 +51,10 @@ jobs:
       - name: Docker Login to Github Registry
         run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
       - name: Docker Pull
-        run: docker pull docker.pkg.github.com/vulcanize/ipld-ethcl-indexer/ipld-ethcl-indexer:${{steps.vars.outputs.sha}}
+        run: docker pull docker.pkg.github.com/vulcanize/ipld-eth-beacon-indexer/ipld-eth-beacon-indexer:${{steps.vars.outputs.sha}}
       - name: Docker Login to Docker Registry
         run: echo ${{ secrets.VULCANIZEJENKINS_PAT }} | docker login -u vulcanizejenkins --password-stdin
       - name: Tag docker image
-        run: docker tag docker.pkg.github.com/vulcanize/ipld-ethcl-indexer/ipld-ethcl-indexer:${{steps.vars.outputs.sha}} vulcanize/ipld-ethcl-indexer:${{steps.vars.outputs.tag}}
+        run: docker tag docker.pkg.github.com/vulcanize/ipld-eth-beacon-indexer/ipld-eth-beacon-indexer:${{steps.vars.outputs.sha}} vulcanize/ipld-eth-beacon-indexer:${{steps.vars.outputs.tag}}
       - name: Docker Push to Docker Hub
-        run: docker push vulcanize/ipld-ethcl-indexer:${{steps.vars.outputs.tag}}
+        run: docker push vulcanize/ipld-eth-beacon-indexer:${{steps.vars.outputs.tag}}

.github/workflows/system-tests.yml

@@ -0,0 +1,95 @@
+name: System Testing for the stack.
+on:
+  workflow_call:
+    inputs:
+      stack-orchestrator-ref:
+        required: false
+        type: string
+      ipld-eth-beacon-db-ref:
+        required: false
+        type: string
+    secrets:
+      GHA_KEY:
+        required: true
+      BC_ADDRESS:
+        required: true
+env:
+  stack-orchestrator-ref: ${{ inputs.stack-orchestrator-ref || '7fb664270a0ba09e2caa3095e8c91f3fdb5b38af' }}
+  ipld-eth-beacon-db-ref: ${{ inputs.ipld-eth-beacon-db-ref  || '3dfe416302d553f8240f6051c08a7899b0e39e12' }}
+  GOPATH: /tmp/go
+  bc_protocol: "http"
+  bc_address: ${{secrets.BC_ADDRESS}}
+  bc_port: 5052
+  db_host: localhost
+  db_port: 8076
+  db_name: vulcanize_testing
+  db_user: vdbm
+  db_password: password
+  db_driver: "pgx"
+
+jobs:
+  system-testing:
+    runs-on: self-hosted
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/checkout@v2
+        with:
+          path: "./ipld-eth-beacon-indexer"
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.stack-orchestrator-ref }}
+          path: "./stack-orchestrator/"
+          repository: vulcanize/stack-orchestrator
+          fetch-depth: 0
+
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.ipld-eth-beacon-db-ref }}
+          repository: vulcanize/ipld-eth-beacon-db
+          path: "./ipld-eth-beacon-db/"
+          ssh-key: ${{secrets.GHA_KEY}}
+          fetch-depth: 0
+
+      - name: Create config file
+        run: |
+          echo vulcanize_ipld_eth_beacon_db=$(pwd)/ipld-eth-beacon-db > ./config.sh
+          cat ./config.sh
+
+      - name: Run docker compose
+        id: compose
+        shell: bash
+        run: |
+          ls "./stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml"
+          whoami
+          /usr/local/bin/docker-compose  \
+          -f "./stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml" \
+          --env-file ./config.sh \
+          up -d --build
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Install packages
+        run: |
+          go install github.com/onsi/ginkgo/v2/ginkgo@latest
+          which ginkgo
+
+      - name: Run the tests using Make
+        run: |
+          sleep 20
+          cd ipld-eth-beacon-indexer
+          make system-test-ci
+
+      - name: Clean up the docker containers
+        if: always() && steps.compose.outcome == 'success'
+        shell: bash
+        run: |
+          /usr/local/bin/docker-compose \
+          -f "./stack-orchestrator/docker/local/docker-compose-ipld-eth-beacon-db.yml" \
+          --env-file ./config.sh \
+          down -v

.gitignore

@@ -4,5 +4,7 @@ ipld-ethcl-indexer.log
 report.json
 cover.profile
 temp/*
+.vscode/*
 pkg/beaconclient/ssz-data/
 *.test
+ipld-eth-beacon-indexer.log

Dockerfile

@@ -1,6 +1,6 @@
 FROM golang:1.18-alpine as builder
 
-WORKDIR /go/src/github.com/vulcanize/ipld-ethcl-indexer
+WORKDIR /go/src/github.com/vulcanize/ipld-eth-beacon-indexer
 RUN apk --no-cache add ca-certificates make git g++ linux-headers
 
 ENV GO111MODULE=on
@@ -9,12 +9,12 @@ COPY go.sum .
 RUN go mod tidy; go mod download
 COPY . .
 
-RUN GCO_ENABLED=0 GOOS=linux go build -race -a -installsuffix cgo -ldflags '-extldflags "-static"' -o ipld-ethcl-indexer .
+RUN GCO_ENABLED=0 GOOS=linux go build -race -a -installsuffix cgo -ldflags '-extldflags "-static"' -o ipld-eth-beacon-indexer .
-RUN chmod +x ipld-ethcl-indexer
+RUN chmod +x ipld-eth-beacon-indexer
 
 FROM frolvlad/alpine-bash:latest
 RUN apk --no-cache add ca-certificates
 WORKDIR /root/
-COPY --from=builder /go/src/github.com/vulcanize/ipld-ethcl-indexer/ipld-ethcl-indexer /root/ipld-ethcl-indexer
+COPY --from=builder /go/src/github.com/vulcanize/ipld-eth-beacon-indexer/ipld-eth-beacon-indexer /root/ipld-eth-beacon-indexer
 ADD entrypoint.sh .
 ENTRYPOINT ["./entrypoint.sh"]

Makefile

@@ -80,6 +80,24 @@ unit-test-ci:
 	--cover --coverprofile=cover.profile \
 	--trace --json-report=report.json
 
+.PHONY: system-test-ci
+system-test-ci:
+	go vet ./...
+	go fmt ./...
+	$(GINKGO) -r --label-filter system \
+	--randomize-all --randomize-suites \
+	--fail-on-pending --keep-going \
+	--cover --coverprofile=cover.profile \
+	--trace --json-report=report.json
+
+.PHONY: system-test-local
+system-test-local:
+	go vet ./...
+	go fmt ./...
+	$(GINKGO) -r --label-filter system \
+	--randomize-all --randomize-suites \
+	--fail-on-pending --keep-going \
+	--trace
 
 .PHONY: build
 build:
@@ -89,4 +107,4 @@ build:
 ## Build docker image
 .PHONY: docker-build
 docker-build:
-	docker build -t vulcanize/ipld-ethcl-indexer .
+	docker build -t vulcanize/ipld-eth-beacon-indexer .

README.md

@@ -1,4 +1,4 @@
-- [ipld-ethcl-indexer](#ipld-ethcl-indexer)
+- [ipld-eth-beacon-indexer](#ipld-eth-beacon-indexer)
 - [Running the Application](#running-the-application)
 - [Development Patterns](#development-patterns)
   - [Logging](#logging)
@@ -8,7 +8,7 @@
 
 <small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
 
-# ipld-ethcl-indexer
+# ipld-eth-beacon-indexer
 
 This application will capture all the `BeaconState`'s and `SignedBeaconBlock`'s from the consensus chain on Ethereum. This application is going to connect to the lighthouse client, but hypothetically speaking, it should be interchangeable with any eth2 beacon node.
 
@@ -22,12 +22,12 @@ To run the application, do as follows:
 
 1. Setup the prerequisite applications.
    a. Run a beacon client (such as lighthouse).
-   b. Run a postgres DB for ethcl.
+   b. Run a postgres DB for eth-beacon.
    c. You can utilize the `stack-orchestrator` [repository](https://github.com/vulcanize/stack-orchestrato).
 
    ```
    ./wrapper.sh -e skip \
-   -d ../docker/local/docker-compose-ethcl-db.yml \
+   -d ../docker/local/docker-compose-ipld-eth-beacon-db.yml \
    -d ../docker/latest/docker-compose-lighthouse.yml \
    -v remove \
    -p ../local-config.sh
@@ -37,19 +37,7 @@ To run the application, do as follows:
 2. Run the start up command.
 
 ```
-go run -race main.go capture head --db.address localhost \
+go run -race main.go capture full --config ./example.ipld-eth-beacon-indexer-config.json
-  --db.password password \
-  --db.port 8076 \
-  --db.username vdbm \
-  --db.name vulcanize_testing \
-  --db.driver PGX \
-  --bc.address localhost \
-  --bc.port 5052 \
-  --bc.connectionProtocol http \
-  --t.skipSync=true \
-  --log.level info \
-  --log.output=true \
-  --kg.increment 100
 ```
 
 ## Running Tests

application_component.md

@@ -51,4 +51,4 @@ This package contains useful functions for logging.
 
 ## `internal/shutdown`
 
-This package is used to shutdown the `ipld-ethcl-indexer`. It calls the `pkg/gracefulshutdown` package.
+This package is used to shutdown the `ipld-eth-beacon-indexer`. It calls the `pkg/gracefulshutdown` package.

cmd/boot.go

@@ -23,9 +23,10 @@ import (
 
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/boot"
+	"github.com/spf13/viper"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // bootCmd represents the boot command
@@ -44,9 +45,11 @@ func bootApp() {
 	log.Info("Starting the application in boot mode.")
 	ctx := context.Background()
 
-	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, testDisregardSync)
+	Bc, Db, err := boot.BootApplicationWithRetry(ctx, viper.GetString("db.address"), viper.GetInt("db.port"), viper.GetString("db.name"), viper.GetString("db.username"), viper.GetString("db.password"), viper.GetString("db.driver"),
+		viper.GetString("bc.address"), viper.GetInt("bc.port"), viper.GetString("bc.connectionProtocol"), viper.GetString("bc.type"), viper.GetInt("bc.bootRetryInterval"), viper.GetInt("bc.bootMaxRetry"),
+		viper.GetInt("kg.increment"), "boot", viper.GetBool("t.skipSync"), viper.GetInt("bc.uniqueNodeIdentifier"), viper.GetBool("bc.checkDb"))
 	if err != nil {
-		loghelper.LogError(err).Error("Unable to Start application")
+		StopApplicationPreBoot(err, Db)
 	}
 
 	log.Info("Boot complete, we are going to shutdown.")
@@ -57,11 +60,11 @@ func bootApp() {
 		notifierCh <- syscall.SIGTERM
 	}()
 
-	err = shutdown.ShutdownServices(ctx, notifierCh, maxWaitSecondsShutdown, DB, BC)
+	err = shutdown.ShutdownBoot(ctx, notifierCh, maxWaitSecondsShutdown, Db, Bc)
 	if err != nil {
-		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-ethcl-indexer!")
+		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-eth-beacon-indexer!")
 	} else {
-		log.Info("Gracefully shutdown ipld-ethcl-indexer")
+		log.Info("Gracefully shutdown ipld-eth-beacon-indexer")
 	}
 }
 

cmd/capture.go

@@ -17,6 +17,7 @@
 package cmd
 
 import (
+	"fmt"
 	"os"
 	"time"
 
@@ -33,9 +34,20 @@ var (
 	dbPort                     int
 	bcAddress                  string
 	bcPort                     int
+	bcBootRetryInterval        int
+	bcBootMaxRetry             int
 	bcConnectionProtocol       string
 	bcType                     string
-	maxWaitSecondsShutdown time.Duration  = time.Duration(5) * time.Second
+	bcMaxHistoricProcessWorker int
+	bcUniqueNodeIdentifier     int
+	bcCheckDb                  bool
+	kgMaxWorker                int
+	kgTableIncrement           int
+	kgProcessGaps              bool
+	pmMetrics                  bool
+	pmAddress                  string
+	pmPort                     int
+	maxWaitSecondsShutdown     time.Duration  = time.Duration(20) * time.Second
 	notifierCh                 chan os.Signal = make(chan os.Signal, 1)
 	testDisregardSync          bool
 )
@@ -62,35 +74,50 @@ func init() {
 	captureCmd.PersistentFlags().StringVarP(&dbName, "db.name", "n", "", "Database name connect to DB(required)")
 	captureCmd.PersistentFlags().StringVarP(&dbDriver, "db.driver", "", "", "Database Driver to connect to DB(required)")
 	captureCmd.PersistentFlags().IntVarP(&dbPort, "db.port", "", 0, "Port to connect to DB(required)")
-	err := captureCmd.MarkPersistentFlagRequired("db.username")
+	//err := captureCmd.MarkPersistentFlagRequired("db.username")
-	exitErr(err)
+	// exitErr(err)
-	err = captureCmd.MarkPersistentFlagRequired("db.password")
+	// err = captureCmd.MarkPersistentFlagRequired("db.password")
-	exitErr(err)
+	// exitErr(err)
-	err = captureCmd.MarkPersistentFlagRequired("db.address")
+	// err = captureCmd.MarkPersistentFlagRequired("db.address")
-	exitErr(err)
+	// exitErr(err)
-	err = captureCmd.MarkPersistentFlagRequired("db.port")
+	// err = captureCmd.MarkPersistentFlagRequired("db.port")
-	exitErr(err)
+	// exitErr(err)
-	err = captureCmd.MarkPersistentFlagRequired("db.name")
+	// err = captureCmd.MarkPersistentFlagRequired("db.name")
-	exitErr(err)
+	// exitErr(err)
-	err = captureCmd.MarkPersistentFlagRequired("db.driver")
+	// err = captureCmd.MarkPersistentFlagRequired("db.driver")
-	exitErr(err)
+	// exitErr(err)
 
 	//// Beacon Client Specific
 	captureCmd.PersistentFlags().StringVarP(&bcAddress, "bc.address", "l", "", "Address to connect to beacon node (required)")
 	captureCmd.PersistentFlags().StringVarP(&bcType, "bc.type", "", "lighthouse", "The beacon client we are using, options are prysm and lighthouse.")
 	captureCmd.PersistentFlags().IntVarP(&bcPort, "bc.port", "r", 0, "Port to connect to beacon node (required )")
 	captureCmd.PersistentFlags().StringVarP(&bcConnectionProtocol, "bc.connectionProtocol", "", "http", "protocol for connecting to the beacon node.")
-	err = captureCmd.MarkPersistentFlagRequired("bc.address")
+	captureCmd.PersistentFlags().IntVarP(&bcBootRetryInterval, "bc.bootRetryInterval", "", 30, "The amount of time to wait between retries while booting the application")
-	exitErr(err)
+	captureCmd.PersistentFlags().IntVarP(&bcBootMaxRetry, "bc.bootMaxRetry", "", 5, "The amount of time to wait between retries while booting the application")
-	err = captureCmd.MarkPersistentFlagRequired("bc.port")
+	captureCmd.PersistentFlags().IntVarP(&bcMaxHistoricProcessWorker, "bc.maxHistoricProcessWorker", "", 30, "The number of workers that should be actively processing slots from the eth-beacon.historic_process table. Be careful of system memory.")
-	exitErr(err)
+	captureCmd.PersistentFlags().IntVarP(&bcUniqueNodeIdentifier, "bc.uniqueNodeIdentifier", "", 0, "The unique identifier of this application. Each application connecting to the DB should have a unique identifier.")
+	captureCmd.PersistentFlags().BoolVarP(&bcCheckDb, "bc.checkDb", "", true, "Should we check to see if the slot exists in the DB before writing it?")
+	// err = captureCmd.MarkPersistentFlagRequired("bc.address")
+	// exitErr(err)
+	// err = captureCmd.MarkPersistentFlagRequired("bc.port")
+	// exitErr(err)
+
+	//// Known Gaps specific
+	captureCmd.PersistentFlags().BoolVarP(&kgProcessGaps, "kg.processKnownGaps", "", true, "Should we process the slots within the eth-beacon.known_gaps table.")
+	captureCmd.PersistentFlags().IntVarP(&kgTableIncrement, "kg.increment", "", 10000, "The max slots within a single entry to the known_gaps table.")
+	captureCmd.PersistentFlags().IntVarP(&kgMaxWorker, "kg.maxKnownGapsWorker", "", 30, "The number of workers that should be actively processing slots from the eth-beacon.known_gaps table. Be careful of system memory.")
+
+	// Prometheus Specific
+	captureCmd.PersistentFlags().BoolVarP(&pmMetrics, "pm.metrics", "", true, "Should we capture prometheus metrics.")
+	captureCmd.PersistentFlags().StringVarP(&pmAddress, "pm.address", "", "localhost", "Address to send the prometheus metrics.")
+	captureCmd.PersistentFlags().IntVarP(&pmPort, "pm.port", "", 9000, "The port to send prometheus metrics.")
 
 	//// Testing Specific
 	captureCmd.PersistentFlags().BoolVar(&testDisregardSync, "t.skipSync", false, "Should we disregard the head sync?")
 
 	// Bind Flags with Viper
 	//// DB Flags
-	err = viper.BindPFlag("db.username", captureCmd.PersistentFlags().Lookup("db.username"))
+	err := viper.BindPFlag("db.username", captureCmd.PersistentFlags().Lookup("db.username"))
 	exitErr(err)
 	err = viper.BindPFlag("db.password", captureCmd.PersistentFlags().Lookup("db.password"))
 	exitErr(err)
@@ -100,14 +127,14 @@ func init() {
 	exitErr(err)
 	err = viper.BindPFlag("db.name", captureCmd.PersistentFlags().Lookup("db.name"))
 	exitErr(err)
+	err = viper.BindPFlag("db.driver", captureCmd.PersistentFlags().Lookup("db.driver"))
+	exitErr(err)
+
+	//// Testing Specific
 	err = viper.BindPFlag("t.skipSync", captureCmd.PersistentFlags().Lookup("t.skipSync"))
 	exitErr(err)
 
-	// Testing Specific
+	//// LH specific
-	err = viper.BindPFlag("t.driver", captureCmd.PersistentFlags().Lookup("db.driver"))
-	exitErr(err)
-
-	// LH specific
 	err = viper.BindPFlag("bc.address", captureCmd.PersistentFlags().Lookup("bc.address"))
 	exitErr(err)
 	err = viper.BindPFlag("bc.type", captureCmd.PersistentFlags().Lookup("bc.type"))
@@ -116,14 +143,40 @@ func init() {
 	exitErr(err)
 	err = viper.BindPFlag("bc.connectionProtocol", captureCmd.PersistentFlags().Lookup("bc.connectionProtocol"))
 	exitErr(err)
+	err = viper.BindPFlag("bc.bootRetryInterval", captureCmd.PersistentFlags().Lookup("bc.bootRetryInterval"))
+	exitErr(err)
+	err = viper.BindPFlag("bc.bootMaxRetry", captureCmd.PersistentFlags().Lookup("bc.bootMaxRetry"))
+	exitErr(err)
+	err = viper.BindPFlag("bc.maxHistoricProcessWorker", captureCmd.PersistentFlags().Lookup("bc.maxHistoricProcessWorker"))
+	exitErr(err)
+	err = viper.BindPFlag("bc.uniqueNodeIdentifier", captureCmd.PersistentFlags().Lookup("bc.uniqueNodeIdentifier"))
+	exitErr(err)
+	err = viper.BindPFlag("bc.checkDb", captureCmd.PersistentFlags().Lookup("bc.checkDb"))
+	exitErr(err)
 	// Here you will define your flags and configuration settings.
 
+	//// Known Gap Specific
+	err = viper.BindPFlag("kg.processKnownGaps", captureCmd.PersistentFlags().Lookup("kg.processKnownGaps"))
+	exitErr(err)
+	err = viper.BindPFlag("kg.increment", captureCmd.PersistentFlags().Lookup("kg.increment"))
+	exitErr(err)
+	err = viper.BindPFlag("kg.processKnownGaps", captureCmd.PersistentFlags().Lookup("kg.maxKnownGapsWorker"))
+	exitErr(err)
+
+	// Prometheus Specific
+	err = viper.BindPFlag("pm.metrics", captureCmd.PersistentFlags().Lookup("pm.metrics"))
+	exitErr(err)
+	err = viper.BindPFlag("pm.address", captureCmd.PersistentFlags().Lookup("pm.address"))
+	exitErr(err)
+	err = viper.BindPFlag("pm.port", captureCmd.PersistentFlags().Lookup("pm.port"))
+	exitErr(err)
 }
 
 // Helper function to catch any errors.
 // We need to capture these errors for the linter.
 func exitErr(err error) {
 	if err != nil {
+		fmt.Println("Error: ", err)
 		os.Exit(1)
 	}
 }

cmd/full.go

@@ -0,0 +1,118 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+	"golang.org/x/sync/errgroup"
+)
+
+// fullCmd represents the full command
+var fullCmd = &cobra.Command{
+	Use:   "full",
+	Short: "Capture all components of the application (head and historical)",
+	Long:  `Capture all components of the application (head and historical`,
+	Run: func(cmd *cobra.Command, args []string) {
+		startFullProcessing()
+	},
+}
+
+func init() {
+	captureCmd.AddCommand(fullCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// fullCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// fullCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}
+
+// Start the application to track at head and historical processing.
+func startFullProcessing() {
+	// Boot the application
+	log.Info("Starting the application in head tracking mode.")
+	ctx := context.Background()
+
+	Bc, Db, err := boot.BootApplicationWithRetry(ctx, viper.GetString("db.address"), viper.GetInt("db.port"), viper.GetString("db.name"), viper.GetString("db.username"), viper.GetString("db.password"), viper.GetString("db.driver"),
+		viper.GetString("bc.address"), viper.GetInt("bc.port"), viper.GetString("bc.connectionProtocol"), viper.GetString("bc.type"), viper.GetInt("bc.bootRetryInterval"), viper.GetInt("bc.bootMaxRetry"),
+		viper.GetInt("kg.increment"), "head", viper.GetBool("t.skipSync"), viper.GetInt("bc.uniqueNodeIdentifier"), viper.GetBool("bc.checkDb"))
+	if err != nil {
+		StopApplicationPreBoot(err, Db)
+	}
+
+	if viper.GetBool("pm.metrics") {
+		addr := viper.GetString("pm.address") + ":" + strconv.Itoa(viper.GetInt("pm.port"))
+		serveProm(addr)
+	}
+
+	log.Info("The Beacon Client has booted successfully!")
+	// Capture head blocks
+	go Bc.CaptureHead()
+
+	hpContext, hpCancel := context.WithCancel(context.Background())
+
+	errG, _ := errgroup.WithContext(context.Background())
+	errG.Go(func() error {
+		errs := Bc.CaptureHistoric(hpContext, viper.GetInt("bc.maxHistoricProcessWorker"))
+		if len(errs) != 0 {
+			if len(errs) != 0 {
+				log.WithFields(log.Fields{"errs": errs}).Error("All errors when processing historic events")
+				return fmt.Errorf("Application ended because there were too many error when attempting to process historic")
+			}
+		}
+		return nil
+	})
+	kgCtx, KgCancel := context.WithCancel(context.Background())
+	if viper.GetBool("kg.processKnownGaps") {
+		go func() {
+			errG := new(errgroup.Group)
+			errG.Go(func() error {
+				errs := Bc.ProcessKnownGaps(kgCtx, viper.GetInt("kg.maxKnownGapsWorker"))
+				if len(errs) != 0 {
+					log.WithFields(log.Fields{"errs": errs}).Error("All errors when processing knownGaps")
+					return fmt.Errorf("Application ended because there were too many error when attempting to process knownGaps")
+				}
+				return nil
+			})
+			if err := errG.Wait(); err != nil {
+				loghelper.LogError(err).Error("Error with knownGaps processing")
+			}
+		}()
+	}
+
+	// Shutdown when the time is right.
+	err = shutdown.ShutdownFull(ctx, KgCancel, hpCancel, notifierCh, maxWaitSecondsShutdown, Db, Bc)
+	if err != nil {
+		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-eth-beacon-indexer!")
+	} else {
+		log.Info("Gracefully shutdown ipld-eth-beacon-indexer")
+	}
+
+}

cmd/head.go

@@ -18,18 +18,18 @@ package cmd
 
 import (
 	"context"
-	"os"
+	"fmt"
+	"net/http"
+	"strconv"
 
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/boot"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/shutdown"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
-)
+	"golang.org/x/sync/errgroup"
-
-var (
-	kgTableIncrement int
 )
 
 // headCmd represents the head command
@@ -48,34 +48,65 @@ func startHeadTracking() {
 	log.Info("Starting the application in head tracking mode.")
 	ctx := context.Background()
 
-	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, testDisregardSync)
+	Bc, Db, err := boot.BootApplicationWithRetry(ctx, viper.GetString("db.address"), viper.GetInt("db.port"), viper.GetString("db.name"), viper.GetString("db.username"), viper.GetString("db.password"), viper.GetString("db.driver"),
+		viper.GetString("bc.address"), viper.GetInt("bc.port"), viper.GetString("bc.connectionProtocol"), viper.GetString("bc.type"), viper.GetInt("bc.bootRetryInterval"), viper.GetInt("bc.bootMaxRetry"),
+		viper.GetInt("kg.increment"), "head", viper.GetBool("t.skipSync"), viper.GetInt("bc.uniqueNodeIdentifier"), viper.GetBool("bc.checkDb"))
 	if err != nil {
-		loghelper.LogError(err).Error("Unable to Start application")
+		StopApplicationPreBoot(err, Db)
-		if DB != nil {
-			DB.Close()
 	}
-		os.Exit(1)
+
+	if viper.GetBool("pm.metrics") {
+		addr := viper.GetString("pm.address") + ":" + strconv.Itoa(viper.GetInt("pm.port"))
+		serveProm(addr)
 	}
 
 	log.Info("The Beacon Client has booted successfully!")
 	// Capture head blocks
-	go BC.CaptureHead(kgTableIncrement)
+	go Bc.CaptureHead()
+	kgCtx, KgCancel := context.WithCancel(context.Background())
+	if viper.GetBool("kg.processKnownGaps") {
+		go func() {
+			errG := new(errgroup.Group)
+			errG.Go(func() error {
+				errs := Bc.ProcessKnownGaps(kgCtx, viper.GetInt("kg.maxKnownGapsWorker"))
+				if len(errs) != 0 {
+					log.WithFields(log.Fields{"errs": errs}).Error("All errors when processing knownGaps")
+					return fmt.Errorf("Application ended because there were too many error when attempting to process knownGaps")
+				}
+				return nil
+			})
+			if err := errG.Wait(); err != nil {
+				loghelper.LogError(err).Error("Error with knownGaps processing")
+			}
+		}()
+	}
 
 	// Shutdown when the time is right.
-	err = shutdown.ShutdownServices(ctx, notifierCh, maxWaitSecondsShutdown, DB, BC)
+	err = shutdown.ShutdownHeadTracking(ctx, KgCancel, notifierCh, maxWaitSecondsShutdown, Db, Bc)
 	if err != nil {
-		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-ethcl-indexer!")
+		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-eth-beacon-indexer!")
 	} else {
-		log.Info("Gracefully shutdown ipld-ethcl-indexer")
+		log.Info("Gracefully shutdown ipld-eth-beacon-indexer")
 	}
 
 }
 
 func init() {
 	captureCmd.AddCommand(headCmd)
-
+}
-	// Known Gaps specific
+
-	captureCmd.PersistentFlags().IntVarP(&kgTableIncrement, "kg.increment", "", 10000, "The max slots within a single entry to the known_gaps table.")
+// Start prometheus server
-	err := viper.BindPFlag("kg.increment", captureCmd.PersistentFlags().Lookup("kg.increment"))
+func serveProm(addr string) {
-	exitErr(err)
+	mux := http.NewServeMux()
+	mux.Handle("/metrics", promhttp.Handler())
+
+	srv := http.Server{
+		Addr:    addr,
+		Handler: mux,
+	}
+	go func() {
+		if err := srv.ListenAndServe(); err != nil {
+			loghelper.LogError(err).WithField("endpoint", addr).Error("Error with prometheus")
+		}
+	}()
 }

cmd/historic.go

@@ -17,9 +17,19 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
+	"os"
+	"strconv"
 
+	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+	"golang.org/x/sync/errgroup"
 )
 
 // historicCmd represents the historic command
@@ -28,10 +38,69 @@ var historicCmd = &cobra.Command{
 	Short: "Capture the historic blocks and states.",
 	Long:  `Capture the historic blocks and states.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("historic called")
+		startHistoricProcessing()
 	},
 }
 
+// Start the application to process historical slots.
+func startHistoricProcessing() {
+	// Boot the application
+	log.Info("Starting the application in head tracking mode.")
+	ctx := context.Background()
+
+	Bc, Db, err := boot.BootApplicationWithRetry(ctx, viper.GetString("db.address"), viper.GetInt("db.port"), viper.GetString("db.name"), viper.GetString("db.username"), viper.GetString("db.password"), viper.GetString("db.driver"),
+		viper.GetString("bc.address"), viper.GetInt("bc.port"), viper.GetString("bc.connectionProtocol"), viper.GetString("bc.type"), viper.GetInt("bc.bootRetryInterval"), viper.GetInt("bc.bootMaxRetry"),
+		viper.GetInt("kg.increment"), "historic", viper.GetBool("t.skipSync"), viper.GetInt("bc.uniqueNodeIdentifier"), viper.GetBool("bc.checkDb"))
+	if err != nil {
+		StopApplicationPreBoot(err, Db)
+	}
+
+	if viper.GetBool("pm.metrics") {
+		addr := viper.GetString("pm.address") + ":" + strconv.Itoa(viper.GetInt("pm.port"))
+		serveProm(addr)
+	}
+
+	hpContext, hpCancel := context.WithCancel(context.Background())
+
+	errG, _ := errgroup.WithContext(context.Background())
+	errG.Go(func() error {
+		errs := Bc.CaptureHistoric(hpContext, viper.GetInt("bc.maxHistoricProcessWorker"))
+		if len(errs) != 0 {
+			if len(errs) != 0 {
+				log.WithFields(log.Fields{"errs": errs}).Error("All errors when processing historic events")
+				return fmt.Errorf("Application ended because there were too many error when attempting to process historic")
+			}
+		}
+		return nil
+	})
+
+	kgContext, kgCancel := context.WithCancel(context.Background())
+	if viper.GetBool("kg.processKnownGaps") {
+		go func() {
+			errG := new(errgroup.Group)
+			errG.Go(func() error {
+				errs := Bc.ProcessKnownGaps(kgContext, viper.GetInt("kg.maxKnownGapsWorker"))
+				if len(errs) != 0 {
+					log.WithFields(log.Fields{"errs": errs}).Error("All errors when processing knownGaps")
+					return fmt.Errorf("Application ended because there were too many error when attempting to process knownGaps")
+				}
+				return nil
+			})
+			if err := errG.Wait(); err != nil {
+				loghelper.LogError(err).Error("Error with knownGaps processing")
+			}
+		}()
+	}
+
+	// Shutdown when the time is right.
+	err = shutdown.ShutdownHistoricProcessing(ctx, kgCancel, hpCancel, notifierCh, maxWaitSecondsShutdown, Db, Bc)
+	if err != nil {
+		loghelper.LogError(err).Error("Ungracefully Shutdown ipld-eth-beacon-indexer!")
+	} else {
+		log.Info("Gracefully shutdown ipld-eth-beacon-indexer")
+	}
+}
+
 func init() {
 	captureCmd.AddCommand(historicCmd)
 
@@ -45,3 +114,12 @@ func init() {
 	// is called directly, e.g.:
 	// historicCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }
+
+// Stop the application during its initial boot phases.
+func StopApplicationPreBoot(startErr error, db sql.Database) {
+	loghelper.LogError(startErr).Error("Unable to Start application")
+	if db != nil {
+		db.Close()
+	}
+	os.Exit(1)
+}

cmd/root.go

@@ -32,7 +32,7 @@ var (
 
 // rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
-	Use:   "ipld-ethcl-indexer",
+	Use:   "ipld-eth-beacon-indexer",
 	Short: "This application will keep track of all BeaconState's and SignedBeaconBlock's on the Beacon Chain.",
 	Long: `This is an application that will capture the BeaconState's and SignedBeaconBlock's on the Beacon Chain.
 It can either do this will keeping track of head, or backfilling historic data.`,
@@ -47,6 +47,7 @@ It can either do this will keeping track of head, or backfilling historic data.`
 func Execute() {
 	err := rootCmd.Execute()
 	if err != nil {
+		fmt.Println("Err when executing rootCmd", err)
 		os.Exit(1)
 	}
 }
@@ -126,9 +127,9 @@ func init() {
 	// will be global for your application.
 
 	// Optional Flags
-	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.ipld-ethcl-indexer.yaml)")
+	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.ipld-eth-beacon-indexer.yaml)")
 	rootCmd.PersistentFlags().String("log.level", log.InfoLevel.String(), "log level (trace, debug, info, warn, error, fatal, panic)")
-	rootCmd.PersistentFlags().String("log.file", "ipld-ethcl-indexer.log", "file path for logging")
+	rootCmd.PersistentFlags().String("log.file", "ipld-eth-beacon-indexer.log", "file path for logging")
 	rootCmd.PersistentFlags().Bool("log.output", true, "Should we log to STDOUT")
 	rootCmd.PersistentFlags().String("log.format", "json", "json or text")
 
@@ -159,10 +160,10 @@ func initConfig() {
 		home, err := os.UserHomeDir()
 		cobra.CheckErr(err)
 
-		// Search config in home directory with name ".ipld-ethcl-indexer" (without extension).
+		// Search config in home directory with name ".ipld-eth-beacon-indexer" (without extension).
 		viper.AddConfigPath(home)
 		viper.SetConfigType("yaml")
-		viper.SetConfigName(".ipld-ethcl-indexer")
+		viper.SetConfigName(".ipld-eth-beacon-indexer")
 	}
 
 	viper.AutomaticEnv() // read in environment variables that match

cmd/version.go

@@ -20,7 +20,7 @@ import (
 
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
-	v "github.com/vulcanize/ipld-ethcl-indexer/pkg/version"
+	v "github.com/vulcanize/ipld-eth-beacon-indexer/pkg/version"
 )
 
 var (
@@ -47,7 +47,7 @@ to quickly create a Cobra application.`,
 			Patch: Patch,
 			Meta:  Meta,
 		}
-		log.Infof("ipld-ethcl-indexer version: %s", version.GetVersionWithMeta())
+		log.Infof("ipld-eth-beacon-indexer version: %s", version.GetVersionWithMeta())
 		fmt.Println(version.GetVersionWithMeta())
 	},
 }

config/cicd/boot.ipld-eth-beacon-indexer.json

@@ -0,0 +1,40 @@
+{
+  "db": {
+    "address": "ipld-eth-beacon-db",
+    "password": "password",
+    "port": 5432,
+    "username": "vdbm",
+    "name": "vulcanize_testing",
+    "driver": "PGX"
+  },
+  "bc": {
+    "address": "lighthouse",
+    "port": 5052,
+    "type": "lighthouse",
+    "bootRetryInterval": 30,
+    "bootMaxRetry": 5,
+    "maxHistoricProcessWorker": 2,
+    "connectionProtocol": "http",
+    "uniqueNodeIdentifier": 100,
+    "checkDb": true
+  },
+  "t": {
+    "skipSync": true
+  },
+  "log": {
+    "level": "debug",
+    "output": true,
+    "file": "./ipld-eth-beacon-indexer.log",
+    "format": "json"
+  },
+  "kg": {
+    "increment": 10000,
+    "processKnownGaps": true,
+    "maxKnownGapsWorker": 2
+  },
+  "pm": {
+    "address": "localhost",
+    "port": 9000,
+    "metrics": true
+  }
+}

config/example.ipld-eth-beacon-indexer-config.json

@@ -0,0 +1,40 @@
+{
+  "db": {
+    "address": "localhost",
+    "password": "password",
+    "port": 8076,
+    "username": "vdbm",
+    "name": "vulcanize_testing",
+    "driver": "PGX"
+  },
+  "bc": {
+    "address": "localhost",
+    "port": 5052,
+    "type": "lighthouse",
+    "bootRetryInterval": 30,
+    "bootMaxRetry": 5,
+    "maxHistoricProcessWorker": 2,
+    "connectionProtocol": "http",
+    "uniqueNodeIdentifier": 100,
+    "checkDb": true
+  },
+  "t": {
+    "skipSync": true
+  },
+  "log": {
+    "level": "debug",
+    "output": true,
+    "file": "./ipld-eth-beacon-indexer.log",
+    "format": "json"
+  },
+  "kg": {
+    "increment": 10000,
+    "processKnownGaps": true,
+    "maxKnownGapsWorker": 2
+  },
+  "pm": {
+    "address": "localhost",
+    "port": 9000,
+    "metrics": true
+  }
+}

entrypoint.sh

@@ -1,39 +1,18 @@
 #!/bin/bash
 
 sleep 10
-echo "Starting ipld-ethcl-indexer"
+echo "Starting ipld-eth-beacon-indexer"
 
-echo /root/ipld-ethcl-indexer capture ${CAPTURE_MODE} --db.address $DB_ADDRESS \
+echo /root/ipld-eth-beacon-indexer capture ${CAPTURE_MODE} --config /root/ipld-eth-beacon-config.json
-  --db.password $DB_PASSWORD \
-  --db.port $DB_PORT \
-  --db.username $DB_USER \
-  --db.name $DB_NAME \
-  --db.driver $DB_DRIVER \
-  --bc.address $BC_ADDRESS \
-  --bc.port $BC_PORT \
-  --log.level $LOG_LEVEL\
-  --t.skipSync=$SKIP_SYNC \
-  --kg.increment $KNOWN_GAP_INCREMENT
-
-/root/ipld-ethcl-indexer capture ${CAPTURE_MODE} --db.address $DB_ADDRESS \
-  --db.password $DB_PASSWORD \
-  --db.port $DB_PORT \
-  --db.username $DB_USER \
-  --db.name $DB_NAME \
-  --db.driver $DB_DRIVER \
-  --bc.address $BC_ADDRESS \
-  --bc.port $BC_PORT \
-  --log.level $LOG_LEVEL \
-  --t.skipSync=$SKIP_SYNC \
-  --kg.increment $KNOWN_GAP_INCREMENT
 
+/root/ipld-eth-beacon-indexer capture ${CAPTURE_MODE} --config /root/ipld-eth-beacon-config.json
 rv=$?
 
 if [ $rv != 0 ]; then
-  echo "ipld-ethcl-indexer startup failed"
+  echo "ipld-eth-beacon-indexer startup failed"
   echo 1 > /root/HEALTH
 else
-  echo "ipld-ethcl-indexer startup succeeded"
+  echo "ipld-eth-beacon-indexer startup succeeded"
   echo 0 > /root/HEALTH
 fi
 

go.mod

@@ -1,4 +1,4 @@
-module github.com/vulcanize/ipld-ethcl-indexer
+module github.com/vulcanize/ipld-eth-beacon-indexer
 
 go 1.18
 
@@ -9,6 +9,7 @@ require (
 	github.com/multiformats/go-multihash v0.1.0
 	github.com/onsi/ginkgo/v2 v2.1.4
 	github.com/onsi/gomega v1.19.0
+	github.com/prometheus/client_golang v1.12.1
 	github.com/r3labs/sse v0.0.0-20210224172625-26fe804710bc
 	github.com/sirupsen/logrus v1.8.1
 )
@@ -57,7 +58,6 @@ require (
 	github.com/multiformats/go-varint v0.0.6 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_golang v1.12.1 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect

internal/boot/boot.go

@@ -18,17 +18,16 @@ package boot
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/beaconclient"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql/postgres"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql/postgres"
 )
 
 var (
-	maxRetry                                 = 5  // Max times to try to connect to the DB or BC at boot.
-	retryInterval                            = 30 // The time to wait between each try.
 	DB sql.Database               = &postgres.DB{}
 	BC *beaconclient.BeaconClient = &beaconclient.BeaconClient{}
 )
@@ -42,14 +41,18 @@ var (
 // 2. Connect to the database.
 //
 // 3. Make sure the node is synced, unless disregardSync is true.
-func BootApplication(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string, bcAddress string, bcPort int, bcConnectionProtocol string, disregardSync bool) (*beaconclient.BeaconClient, sql.Database, error) {
+func BootApplication(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string,
+	bcAddress string, bcPort int, bcConnectionProtocol string, bcKgTableIncrement int, disregardSync bool, uniqueNodeIdentifier int, checkDb bool) (*beaconclient.BeaconClient, sql.Database, error) {
 	log.Info("Booting the Application")
 
 	log.Debug("Creating the Beacon Client")
-	BC = beaconclient.CreateBeaconClient(ctx, bcConnectionProtocol, bcAddress, bcPort)
+	Bc, err := beaconclient.CreateBeaconClient(ctx, bcConnectionProtocol, bcAddress, bcPort, bcKgTableIncrement, uniqueNodeIdentifier, checkDb)
+	if err != nil {
+		return Bc, nil, err
+	}
 
 	log.Debug("Checking Beacon Client")
-	err := BC.CheckBeaconClient()
+	err = Bc.CheckBeaconClient()
 	if err != nil {
 		return nil, nil, err
 	}
@@ -60,40 +63,90 @@ func BootApplication(ctx context.Context, dbHostname string, dbPort int, dbName
 		return nil, nil, err
 	}
 
-	BC.Db = DB
+	Bc.Db = DB
 
 	var status bool
 	if !disregardSync {
-		status, err = BC.CheckHeadSync()
+		status, err = Bc.CheckHeadSync()
 		if err != nil {
 			log.Error("Unable to get the nodes sync status")
-			return BC, DB, err
+			return Bc, DB, err
 		}
 		if status {
 			log.Error("The node is still syncing..")
 			err = fmt.Errorf("The node is still syncing.")
-			return BC, DB, err
+			return Bc, DB, err
 		}
 	} else {
 		log.Warn("We are not checking to see if the node has synced to head.")
 	}
-	return BC, DB, nil
+	return Bc, DB, nil
 }
 
 // Add retry logic to ensure that we are give the Beacon Client and the DB time to start.
-func BootApplicationWithRetry(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string, bcAddress string, bcPort int, bcConnectionProtocol string, disregardSync bool) (*beaconclient.BeaconClient, sql.Database, error) {
+func BootApplicationWithRetry(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string,
+	bcAddress string, bcPort int, bcConnectionProtocol string, bcType string, bcRetryInterval int, bcMaxRetry int, bcKgTableIncrement int,
+	startUpMode string, disregardSync bool, uniqueNodeIdentifier int, checkDb bool) (*beaconclient.BeaconClient, sql.Database, error) {
 	var err error
-	for i := 0; i < maxRetry; i++ {
+
-		BC, DB, err = BootApplication(ctx, dbHostname, dbPort, dbName, dbUsername, dbPassword, driverName, bcAddress, bcPort, bcConnectionProtocol, disregardSync)
+	if bcMaxRetry < 0 {
+		i := 0
+		for {
+			BC, DB, err = BootApplication(ctx, dbHostname, dbPort, dbName, dbUsername, dbPassword, driverName,
+				bcAddress, bcPort, bcConnectionProtocol, bcKgTableIncrement, disregardSync, uniqueNodeIdentifier, checkDb)
 			if err != nil {
 				log.WithFields(log.Fields{
 					"retryNumber": i,
 					"err":         err,
 				}).Warn("Unable to boot application. Going to try again")
-			time.Sleep(time.Duration(retryInterval) * time.Second)
+				time.Sleep(time.Duration(bcRetryInterval) * time.Second)
+				i = i + 1
 				continue
 			}
 			break
 		}
+	} else {
+		for i := 0; i < bcMaxRetry; i++ {
+			BC, DB, err = BootApplication(ctx, dbHostname, dbPort, dbName, dbUsername, dbPassword, driverName,
+				bcAddress, bcPort, bcConnectionProtocol, bcKgTableIncrement, disregardSync, uniqueNodeIdentifier, checkDb)
+			if err != nil {
+				log.WithFields(log.Fields{
+					"retryNumber": i,
+					"err":         err,
+				}).Warn("Unable to boot application. Going to try again")
+				time.Sleep(time.Duration(bcRetryInterval) * time.Second)
+				continue
+			}
+			break
+		}
+	}
+
+	switch strings.ToLower(startUpMode) {
+	case "head":
+		BC.PerformHeadTracking = true
+	case "historic":
+		log.Debug("Performing additional boot steps for historical processing")
+		BC.PerformHistoricalProcessing = true
+		// This field is not currently used.
+		// The idea is, that if we are doing historially processing and we get a slot
+		// greater than this slot, then we would rerun this function.
+		// this would ensure that we have the slots necessary for processing
+		// within the beacon server.
+
+		// We can implement this feature if we notice any errors.
+		headSlot, err := BC.GetLatestSlotInBeaconServer(bcType)
+		if err != nil {
+			return BC, DB, err
+		}
+		BC.UpdateLatestSlotInBeaconServer(int64(headSlot))
+		// Add another switch case for bcType if its ever needed.
+	case "boot":
+		log.Debug("Running application in boot mode.")
+	default:
+		log.WithFields(log.Fields{
+			"startUpMode": startUpMode,
+		}).Error("The startUpMode provided is not handled.")
+	}
+
 	return BC, DB, err
 }

internal/boot/boot_test.go

@@ -20,7 +20,7 @@ import (
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/boot"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
 )
 
 var _ = Describe("Boot", func() {
@@ -34,37 +34,57 @@ var _ = Describe("Boot", func() {
 		bcAddress            string = "localhost"
 		bcPort               int    = 5052
 		bcConnectionProtocol string = "http"
+		bcType               string = "lighthouse"
+		bcBootRetryInterval  int    = 1
+		bcBootMaxRetry       int    = 5
+		bcKgTableIncrement   int    = 10
+		bcUniqueIdentifier   int    = 100
+		bcCheckDb            bool   = false
 	)
 	Describe("Booting the application", Label("integration"), func() {
-		Context("When the DB and BC are both up and running, and we skip checking for a synced head", func() {
+		Context("When the DB and BC are both up and running, we skip checking for a synced head, and we are processing head", func() {
 			It("Should connect successfully", func() {
-				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, true)
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, bcKgTableIncrement, "head", true, bcUniqueIdentifier, bcCheckDb)
+				defer db.Close()
+				Expect(err).ToNot(HaveOccurred())
+			})
+		})
+		Context("When the DB and BC are both up and running, we skip checking for a synced head, and we are processing historic ", func() {
+			It("Should connect successfully", func() {
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, bcKgTableIncrement, "historic", true, bcUniqueIdentifier, bcCheckDb)
 				defer db.Close()
 				Expect(err).ToNot(HaveOccurred())
 			})
 		})
 		Context("When the DB and BC are both up and running, and we check for a synced head", func() {
 			It("Should not connect successfully", func() {
-				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, false)
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, bcKgTableIncrement, "head", false, bcUniqueIdentifier, bcCheckDb)
+				defer db.Close()
+				Expect(err).To(HaveOccurred())
+			})
+		})
+		Context("When the DB and BC are both up and running, we skip checking for a synced head, but the unique identifier is 0", func() {
+			It("Should not connect successfully", func() {
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, bcKgTableIncrement, "head", false, 0, bcCheckDb)
 				defer db.Close()
 				Expect(err).To(HaveOccurred())
 			})
 		})
 		Context("When the DB is running but not the BC", func() {
 			It("Should not connect successfully", func() {
-				_, _, err := boot.BootApplication(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, "hi", 100, bcConnectionProtocol, true)
+				_, _, err := boot.BootApplication(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, "hi", 100, bcConnectionProtocol, bcKgTableIncrement, true, bcUniqueIdentifier, bcCheckDb)
 				Expect(err).To(HaveOccurred())
 			})
 		})
 		Context("When the BC is running but not the DB", func() {
 			It("Should not connect successfully", func() {
-				_, _, err := boot.BootApplication(context.Background(), "hi", 10, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, true)
+				_, _, err := boot.BootApplication(context.Background(), "hi", 10, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcKgTableIncrement, true, bcUniqueIdentifier, bcCheckDb)
 				Expect(err).To(HaveOccurred())
 			})
 		})
 		Context("When neither the BC or DB are running", func() {
 			It("Should not connect successfully", func() {
-				_, _, err := boot.BootApplication(context.Background(), "hi", 10, dbName, dbUsername, dbPassword, dbDriver, "hi", 100, bcConnectionProtocol, true)
+				_, _, err := boot.BootApplication(context.Background(), "hi", 10, dbName, dbUsername, dbPassword, dbDriver, "hi", 100, bcConnectionProtocol, bcKgTableIncrement, true, bcUniqueIdentifier, bcCheckDb)
 				Expect(err).To(HaveOccurred())
 			})
 		})

internal/shutdown/shutdown.go

@@ -20,25 +20,16 @@ import (
 	"os"
 	"time"
 
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/beaconclient"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/gracefulshutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/gracefulshutdown"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // Shutdown all the internal services for the application.
-func ShutdownServices(ctx context.Context, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient) error {
+func ShutdownServices(ctx context.Context, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient, shutdownOperations map[string]gracefulshutdown.Operation) error {
-	successCh, errCh := gracefulshutdown.Shutdown(ctx, notifierCh, waitTime, map[string]gracefulshutdown.Operation{
+	//successCh, errCh := gracefulshutdown.Shutdown(ctx, notifierCh, waitTime, )
-		// Combining DB shutdown with BC because BC needs DB open to cleanly shutdown.
+	successCh, errCh := gracefulshutdown.Shutdown(ctx, notifierCh, waitTime, shutdownOperations)
-		"beaconClient": func(ctx context.Context) error {
-			defer DB.Close()
-			err := BC.StopHeadTracking()
-			if err != nil {
-				loghelper.LogError(err).Error("Unable to trigger shutdown of head tracking")
-			}
-			return err
-		},
-	})
 
 	select {
 	case <-successCh:
@@ -47,3 +38,82 @@ func ShutdownServices(ctx context.Context, notifierCh chan os.Signal, waitTime t
 		return err
 	}
 }
+
+// Wrapper function for shutting down the head tracking process.
+func ShutdownHeadTracking(ctx context.Context, kgCancel context.CancelFunc, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient) error {
+	return ShutdownServices(ctx, notifierCh, waitTime, DB, BC, map[string]gracefulshutdown.Operation{
+		// Combining DB shutdown with BC because BC needs DB open to cleanly shutdown.
+		"beaconClient": func(ctx context.Context) error {
+			defer DB.Close()
+			err := BC.StopHeadTracking()
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to trigger shutdown of head tracking")
+			}
+			if BC.KnownGapsProcess != (beaconclient.KnownGapsProcessing{}) {
+				err = BC.StopKnownGapsProcessing(kgCancel)
+				if err != nil {
+					loghelper.LogError(err).Error("Unable to stop processing known gaps")
+				}
+			}
+			return err
+		},
+	})
+}
+
+// Wrapper function for shutting down the head tracking process.
+func ShutdownHistoricProcessing(ctx context.Context, kgCancel, hpCancel context.CancelFunc, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient) error {
+	return ShutdownServices(ctx, notifierCh, waitTime, DB, BC, map[string]gracefulshutdown.Operation{
+		// Combining DB shutdown with BC because BC needs DB open to cleanly shutdown.
+		"beaconClient": func(ctx context.Context) error {
+			defer DB.Close()
+			err := BC.StopHistoric(hpCancel)
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to stop processing historic")
+			}
+			if BC.KnownGapsProcess != (beaconclient.KnownGapsProcessing{}) {
+				err = BC.StopKnownGapsProcessing(kgCancel)
+				if err != nil {
+					loghelper.LogError(err).Error("Unable to stop processing known gaps")
+				}
+			}
+			return err
+		},
+	})
+}
+
+// Shutdown the head and historical processing
+func ShutdownFull(ctx context.Context, kgCancel, hpCancel context.CancelFunc, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient) error {
+	return ShutdownServices(ctx, notifierCh, waitTime, DB, BC, map[string]gracefulshutdown.Operation{
+		// Combining DB shutdown with BC because BC needs DB open to cleanly shutdown.
+		"beaconClient": func(ctx context.Context) error {
+			defer DB.Close()
+			err := BC.StopHistoric(hpCancel)
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to stop processing historic")
+			}
+			if BC.KnownGapsProcess != (beaconclient.KnownGapsProcessing{}) {
+				err = BC.StopKnownGapsProcessing(kgCancel)
+				if err != nil {
+					loghelper.LogError(err).Error("Unable to stop processing known gaps")
+				}
+			}
+			err = BC.StopHeadTracking()
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to trigger shutdown of head tracking")
+			}
+
+			return err
+		},
+	})
+
+}
+
+// Wrapper function for shutting down the application in boot mode.
+func ShutdownBoot(ctx context.Context, notifierCh chan os.Signal, waitTime time.Duration, DB sql.Database, BC *beaconclient.BeaconClient) error {
+	return ShutdownServices(ctx, notifierCh, waitTime, DB, BC, map[string]gracefulshutdown.Operation{
+		// Combining DB shutdown with BC because BC needs DB open to cleanly shutdown.
+		"Database": func(ctx context.Context) error {
+			return DB.Close()
+		},
+	})
+}

internal/shutdown/shutdown_test.go

@@ -28,15 +28,14 @@ import (
 	. "github.com/onsi/gomega"
 	"github.com/r3labs/sse"
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/boot"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/boot"
-	"github.com/vulcanize/ipld-ethcl-indexer/internal/shutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/internal/shutdown"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/beaconclient"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/gracefulshutdown"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/gracefulshutdown"
 )
 
-var _ = Describe("Shutdown", func() {
+var (
-	var (
 	dbAddress              string        = "localhost"
 	dbPort                 int           = 8076
 	dbName                 string        = "vulcanize_testing"
@@ -46,26 +45,36 @@ var _ = Describe("Shutdown", func() {
 	bcAddress              string        = "localhost"
 	bcPort                 int           = 5052
 	bcConnectionProtocol   string        = "http"
+	bcType                 string        = "lighthouse"
+	bcBootRetryInterval    int           = 1
+	bcBootMaxRetry         int           = 5
+	bcKgTableIncrement     int           = 10
+	bcUniqueIdentifier     int           = 100
+	bcCheckDb              bool          = false
 	maxWaitSecondsShutdown time.Duration = time.Duration(1) * time.Second
 	DB                     sql.Database
 	BC                     *beaconclient.BeaconClient
 	err                    error
 	ctx                    context.Context
 	notifierCh             chan os.Signal
-	)
+)
+
+var _ = Describe("Shutdown", func() {
 	BeforeEach(func() {
 		ctx = context.Background()
-		BC, DB, err = boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, true)
+		BC, DB, err = boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress,
+			bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, bcKgTableIncrement, "head", true, bcUniqueIdentifier, bcCheckDb)
 		notifierCh = make(chan os.Signal, 1)
 		Expect(err).To(BeNil())
 	})
 
-	Describe("Run Shutdown Function,", Label("integration"), func() {
+	Describe("Run Shutdown Function for head tracking,", Label("integration"), func() {
 		Context("When Channels are empty,", func() {
 			It("Should Shutdown Successfully.", func() {
 				go func() {
+					_, cancel := context.WithCancel(context.Background())
 					log.Debug("Starting shutdown chan")
-					err = shutdown.ShutdownServices(ctx, notifierCh, maxWaitSecondsShutdown, DB, BC)
+					err = shutdown.ShutdownHeadTracking(ctx, cancel, notifierCh, maxWaitSecondsShutdown, DB, BC)
 					log.Debug("We have completed the shutdown...")
 					Expect(err).ToNot(HaveOccurred())
 				}()
@@ -76,8 +85,9 @@ var _ = Describe("Shutdown", func() {
 				shutdownCh := make(chan bool)
 				//log.SetLevel(log.DebugLevel)
 				go func() {
+					_, cancel := context.WithCancel(context.Background())
 					log.Debug("Starting shutdown chan")
-					err = shutdown.ShutdownServices(ctx, notifierCh, maxWaitSecondsShutdown, DB, BC)
+					err = shutdown.ShutdownHeadTracking(ctx, cancel, notifierCh, maxWaitSecondsShutdown, DB, BC)
 					log.Debug("We have completed the shutdown...")
 					Expect(err).ToNot(HaveOccurred())
 					shutdownCh <- true
@@ -110,7 +120,8 @@ var _ = Describe("Shutdown", func() {
 				//log.SetLevel(log.DebugLevel)
 				go func() {
 					log.Debug("Starting shutdown chan")
-					err = shutdown.ShutdownServices(ctx, notifierCh, maxWaitSecondsShutdown, DB, BC)
+					_, cancel := context.WithCancel(context.Background())
+					err = shutdown.ShutdownHeadTracking(ctx, cancel, notifierCh, maxWaitSecondsShutdown, DB, BC)
 					log.Debug("We have completed the shutdown...")
 					Expect(err).To(MatchError(gracefulshutdown.TimeoutErr(maxWaitSecondsShutdown.String())))
 					shutdownCh <- true

main.go

@@ -19,7 +19,7 @@ Copyright © 2022 NAME HERE <EMAIL ADDRESS>
 */
 package main
 
-import "github.com/vulcanize/ipld-ethcl-indexer/cmd"
+import "github.com/vulcanize/ipld-eth-beacon-indexer/cmd"
 
 func main() {
 	cmd.Execute()

pkg/beaconclient/beaconclient.go

@@ -18,10 +18,11 @@ package beaconclient
 import (
 	"context"
 	"fmt"
+	"math/rand"
 
 	"github.com/r3labs/sse"
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
 )
 
 // TODO: Use prysms config values instead of hardcoding them here.
@@ -31,7 +32,8 @@ var (
 	bcReorgTopicEndpoint = "/eth/v1/events?topics=chain_reorg" // Endpoint used to subscribe to the head of the chain
 	BcBlockQueryEndpoint = "/eth/v2/beacon/blocks/"            // Endpoint to query individual Blocks
 	BcStateQueryEndpoint = "/eth/v2/debug/beacon/states/"      // Endpoint to query individual States
-	BcSyncStatusEndpoint = "/eth/v1/node/syncing"
+	BcSyncStatusEndpoint = "/eth/v1/node/syncing"              // The endpoint to check to see if the beacon server is still trying to sync to head.
+	LhDbInfoEndpoint     = "/lighthouse/database/info"         // The endpoint for the LIGHTHOUSE server to get the database information.
 	BcBlockRootEndpoint  = func(slot string) string {
 		return "/eth/v1/beacon/blocks/" + slot + "/root"
 	}
@@ -40,33 +42,34 @@ var (
 	//bcFinalizedTopicEndpoint  = "/eth/v1/events?topics=finalized_checkpoint" // Endpoint used to subscribe to the head of the chain
 )
 
-// A structure utilized for keeping track of various metrics. Currently, mostly used in testing.
-type BeaconClientMetrics struct {
-	HeadTrackingInserts   uint64 // Number of head events we successfully wrote to the DB.
-	HeadTrackingReorgs    uint64 // Number of reorg events we successfully wrote to the DB.
-	HeadTrackingKnownGaps uint64 // Number of known_gaps we successfully wrote to the DB.
-	HeadError             uint64 // Number of errors that occurred when decoding the head message.
-	HeadReorgError        uint64 // Number of errors that occurred when decoding the reorg message.
-}
-
 // A struct that capture the Beacon Server that the Beacon Client will be interacting with and querying.
 type BeaconClient struct {
 	Context                context.Context      // A context generic context with multiple uses.
 	ServerEndpoint         string               // What is the endpoint of the beacon server.
-	PerformHistoricalProcessing bool                 // Should we perform historical processing?
 	Db                     sql.Database         // Database object used for reads and writes.
 	Metrics                *BeaconClientMetrics // An object used to keep track of certain BeaconClient Metrics.
 	KnownGapTableIncrement int                  // The max number of slots within a single known_gaps table entry.
+	UniqueNodeIdentifier   int                  // The unique identifier within the cluster of this individual node.
+	KnownGapsProcess       KnownGapsProcessing  // object keeping track of knowngaps processing
+	CheckDb                bool                 // Should we check the DB to see if the slot exists before processing it?
 
 	// Used for Head Tracking
+
 	PerformHeadTracking bool                   // Should we track head?
 	StartingSlot        int                    // If we're performing head tracking. What is the first slot we processed.
 	PreviousSlot        int                    // Whats the previous slot we processed
 	PreviousBlockRoot   string                 // Whats the previous block root, used to check the next blocks parent.
-	CheckKnownGaps      bool                   // Should we check for gaps at start up.
 	HeadTracking        *SseEvents[Head]       // Track the head block
 	ReOrgTracking       *SseEvents[ChainReorg] // Track all Reorgs
 	//FinalizationTracking        *SseEvents[FinalizedCheckpoint] // Track all finalization checkpoints
+
+	// Used for Historical Processing
+
+	// The latest available slot within the Beacon Server. We can't query any slot greater than this.
+	// This value is lazily updated. Therefore at times it will be outdated.
+	LatestSlotInBeaconServer    int64
+	PerformHistoricalProcessing bool               // Should we perform historical processing?
+	HistoricalProcess           HistoricProcessing // object keeping track of historical processing
 }
 
 // A struct to keep track of relevant the head event topic.
@@ -85,20 +88,30 @@ type SseError struct {
 }
 
 // A Function to create the BeaconClient.
-func CreateBeaconClient(ctx context.Context, connectionProtocol string, bcAddress string, bcPort int) *BeaconClient {
+func CreateBeaconClient(ctx context.Context, connectionProtocol string, bcAddress string, bcPort int, bcKgTableIncrement int, uniqueNodeIdentifier int, checkDb bool) (*BeaconClient, error) {
+	if uniqueNodeIdentifier == 0 {
+		uniqueNodeIdentifier := rand.Int()
+		log.WithField("randomUniqueNodeIdentifier", uniqueNodeIdentifier).Warn("No uniqueNodeIdentifier provided, we are going to use a randomly generated one.")
+	}
+
+	metrics, err := CreateBeaconClientMetrics()
+	if err != nil {
+		return nil, err
+	}
+
 	endpoint := fmt.Sprintf("%s://%s:%d", connectionProtocol, bcAddress, bcPort)
 	log.Info("Creating the BeaconClient")
 	return &BeaconClient{
 		Context:                ctx,
 		ServerEndpoint:         endpoint,
+		KnownGapTableIncrement: bcKgTableIncrement,
 		HeadTracking:           createSseEvent[Head](endpoint, BcHeadTopicEndpoint),
 		ReOrgTracking:          createSseEvent[ChainReorg](endpoint, bcReorgTopicEndpoint),
-		Metrics: &BeaconClientMetrics{
+		Metrics:                metrics,
-			HeadTrackingInserts: 0,
+		UniqueNodeIdentifier:   uniqueNodeIdentifier,
-			HeadTrackingReorgs:  0,
+		CheckDb:                checkDb,
-		},
 		//FinalizationTracking: createSseEvent[FinalizedCheckpoint](endpoint, bcFinalizedTopicEndpoint),
-	}
+	}, nil
 }
 
 // Create all the channels to handle a SSE events

pkg/beaconclient/capturehead.go

@@ -21,16 +21,13 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // This function will perform all the heavy lifting for tracking the head of the chain.
-func (bc *BeaconClient) CaptureHead(knownGapsTableIncrement int) {
+func (bc *BeaconClient) CaptureHead() {
-	bc.KnownGapTableIncrement = knownGapsTableIncrement
 	log.Info("We are tracking the head of the chain.")
-	//bc.tempHelper()
 	go bc.handleHead()
-	//go bc.handleFinalizedCheckpoint()
 	go bc.handleReorg()
 	bc.captureEventTopic()
 }

pkg/beaconclient/capturehead_test.go

@@ -39,48 +39,44 @@ import (
 
 	. "github.com/onsi/gomega"
 
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/beaconclient"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql/postgres"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql/postgres"
 )
 
-type Message struct {
+var (
-	HeadMessage       beaconclient.Head // The head messsage that will be streamed to the BeaconClient
-	TestNotes         string            // A small explanation of the purpose this structure plays in the testing landscape.
-	MimicConfig       *MimicConfig      // A configuration of parameters that you are trying to
-	SignedBeaconBlock string            // The file path output of an SSZ encoded SignedBeaconBlock.
-	BeaconState       string            // The file path output of an SSZ encoded BeaconState.
-}
-
-// A structure that can be utilized to mimic and existing SSZ object but change it ever so slightly.
-// This is used because creating your own SSZ object is a headache.
-type MimicConfig struct {
-	ParentRoot  string // The parent root, leave it empty if you want a to use the universal
-	ForkVersion string // Specify the fork version. This is needed as a workaround to create dummy SignedBeaconBlocks.
-}
-
-var _ = Describe("Capturehead", func() {
-
-	var (
-		TestConfig              Config
-		BeaconNodeTester        TestBeaconNode
 	address                 string = "localhost"
 	port                    int    = 8080
 	protocol                string = "http"
-		TestEvents              map[string]Message
 	dbHost                  string = "localhost"
 	dbPort                  int    = 8076
 	dbName                  string = "vulcanize_testing"
 	dbUser                  string = "vdbm"
 	dbPassword              string = "password"
 	dbDriver                string = "pgx"
+	bcUniqueIdentifier      int    = 100
 	dummyParentRoot         string = "46f98c08b54a71dfda4d56e29ec3952b8300cd8d6b67a9b6c562ae96a7a25a42"
 	knownGapsTableIncrement int    = 100000
-		maxRetry                int    = 60
+	maxRetry                int    = 160
-	)
 
-	BeforeEach(func() {
 	TestEvents = map[string]Message{
+		"0": {
+			HeadMessage: beaconclient.Head{
+				Slot:                      "0",
+				Block:                     "0x4d611d5b93fdab69013a7f0a2f961caca0c853f87cfe9595fe50038163079360",
+				State:                     "0x7e76880eb67bbdc86250aa578958e9d0675e64e714337855204fb5abaaf82c2b",
+				CurrentDutyDependentRoot:  "",
+				PreviousDutyDependentRoot: "",
+				EpochTransition:           false,
+				ExecutionOptimistic:       false,
+			},
+			SignedBeaconBlock:             filepath.Join("ssz-data", "0", "signed-beacon-block.ssz"),
+			BeaconState:                   filepath.Join("ssz-data", "0", "beacon-state.ssz"),
+			CorrectSignedBeaconBlockMhKey: "/blocks/QLVAEQRQPA2GINRRGFSDKYRZGNTGIYLCGY4TAMJTME3WMMDBGJTDSNRRMNQWGYJQMM4DKM3GHA3WGZTFHE2TSNLGMU2TAMBTHAYTMMZQG44TGNRQ",
+			CorrectBeaconStateMhKey:       "/blocks/QLVAEQRQPA3WKNZWHA4DAZLCGY3WEYTEMM4DMMRVGBQWCNJXHA4TKODFHFSDANRXGVSTMNDFG4YTIMZTG44DKNJSGA2GMYRVMFRGCYLGHAZGGMTC",
+			CorrectParentRoot:             "0x0000000000000000000000000000000000000000000000000000000000000000",
+			CorrectEth1BlockHash:          "0x0000000000000000000000000000000000000000000000000000000000000000",
+		},
 		"100-dummy": {
 			HeadMessage: beaconclient.Head{
 				Slot:                      "100",
@@ -142,6 +138,10 @@ var _ = Describe("Capturehead", func() {
 			TestNotes:                     "An easy to process Phase 0 block",
 			SignedBeaconBlock:             filepath.Join("ssz-data", "100", "signed-beacon-block.ssz"),
 			BeaconState:                   filepath.Join("ssz-data", "100", "beacon-state.ssz"),
+			CorrectSignedBeaconBlockMhKey: "/blocks/QLVAEQRQPA2TQMRRHA3WKOJXMY3TKMRQMJRDMOLFMVQTAMJUMMZTQMZUMM4TMNDDGQ2TENJZGM3TEYJQMVQWCZLBGNTDAMZSGAYTGNZZG44TSNTC",
+			CorrectBeaconStateMhKey:       "/blocks/QLVAEQRQPBTDEOBWMEYDGNZZMMYDGOBWMEZWGN3CMUZDQZBQGVSDQMRZMY4GKYRXMIZDQMDDMM4WKZDFGE2TINBZMFTDEMDFMJRWIMBWME3WCNJW",
+			CorrectParentRoot:             "0x629ae1587895043076500f4f5dcb202a47c2fc95d5b5c548cb83bc97bd2dbfe1",
+			CorrectEth1BlockHash:          "0x8d3f027beef5cbd4f8b29fc831aba67a5d74768edca529f5596f07fd207865e1",
 		},
 		"101": {
 			HeadMessage: beaconclient.Head{
@@ -156,6 +156,9 @@ var _ = Describe("Capturehead", func() {
 			TestNotes:                     "An easy to process Phase 0 block",
 			SignedBeaconBlock:             filepath.Join("ssz-data", "101", "signed-beacon-block.ssz"),
 			BeaconState:                   filepath.Join("ssz-data", "101", "beacon-state.ssz"),
+			CorrectEth1BlockHash:          "0x8d3f027beef5cbd4f8b29fc831aba67a5d74768edca529f5596f07fd207865e1",
+			CorrectSignedBeaconBlockMhKey: "/blocks/QLVAEQRQPBQWEZJRME4TOMTFGUYTEMJYGJSDANDGGBSDIYJVMM4WGMRVMY4WKZJVG5RTEZJZMQYGMZRTMY2GGNDDHAZGMZBUGJSDCM3EGMYTAOBT",
+			CorrectBeaconStateMhKey:       "/blocks/QLVAEQRQPBRWEMBUMFQTEZLEMJTDCM3DG5RGEN3FG5RGIOLCGYZDCY3FMQ3DQMZSMUYDANZVMU4DSMJUG4ZTKMTFMFRTGMBRHFQTQMRUMNSTQNBX",
 		},
 		"2375703-dummy": {
 			HeadMessage: beaconclient.Head{
@@ -200,16 +203,21 @@ var _ = Describe("Capturehead", func() {
 			TestNotes:                     "An easy to process Altair Block",
 			SignedBeaconBlock:             filepath.Join("ssz-data", "2375703", "signed-beacon-block.ssz"),
 			BeaconState:                   filepath.Join("ssz-data", "2375703", "beacon-state.ssz"),
+			CorrectEth1BlockHash:          "0xd74b1c60423651624de6bb301ac25808951c167ba6ecdd9b2e79b4315aee8202",
+			CorrectParentRoot:             "0x08736ddc20b77f65d1aa6301f7e6e856a820ff3ce6430ed2c3694ae35580e740",
+			CorrectSignedBeaconBlockMhKey: "/blocks/QLVAEQRQPA2DGOJSGM3TEYZVMY3GKMZZGQ4TSZJTGFRGMOJSGQZTQODCGU4DCNJWGM4TCMBTGE2DSZRQMY2TIZRYME2DKMZXG4ZWEMJYGAZDGMBR",
+			CorrectBeaconStateMhKey:       "/blocks/QLVAEQRQPBRDMMRRGVRDKNRQGI3TGYLGGYZWKYZXMUYDCMJVG4ZGENRQMVRTCY3BGBRDAMRTGJTDQZTGGQ2GMY3EGRSWINJVMM3TKMRWMU4TMNDF",
 		},
 		"3797056": {
 			HeadMessage: beaconclient.Head{
 				Slot:                     "3797056",
 				Block:                    "",
-					State:                    "0xb6215b560273af63ec7e011572b60ec1ca0b0232f8ff44fcd4ed55c7526e964e",
+				State:                    "",
 				CurrentDutyDependentRoot: "", PreviousDutyDependentRoot: "", EpochTransition: false, ExecutionOptimistic: false},
 			TestNotes: "An easy to process Altair Block",
-				SignedBeaconBlock: filepath.Join("ssz-data", "2375703", "signed-beacon-block.ssz"),
+			// The file below should not exist, this will trigger an error message and 404 response from the mock.
-				BeaconState:       filepath.Join("ssz-data", "2375703", "beacon-state.ssz"),
+			SignedBeaconBlock: filepath.Join("ssz-data", "3797056", "should-not-exist.txt"),
+			BeaconState:       filepath.Join("ssz-data", "3797056", "beacon-state.ssz"),
 		},
 	}
 	TestConfig = Config{
@@ -224,13 +232,36 @@ var _ = Describe("Capturehead", func() {
 		dbPassword:              dbPassword,
 		dbDriver:                dbDriver,
 		knownGapsTableIncrement: knownGapsTableIncrement,
+		bcUniqueIdentifier:      bcUniqueIdentifier,
+		checkDb:                 true,
 	}
 
 	BeaconNodeTester = TestBeaconNode{
 		TestEvents: TestEvents,
 		TestConfig: TestConfig,
 	}
-	})
+)
+
+type Message struct {
+	HeadMessage                   beaconclient.Head // The head messsage that will be streamed to the BeaconClient
+	TestNotes                     string            // A small explanation of the purpose this structure plays in the testing landscape.
+	MimicConfig                   *MimicConfig      // A configuration of parameters that you are trying to
+	SignedBeaconBlock             string            // The file path output of an SSZ encoded SignedBeaconBlock.
+	BeaconState                   string            // The file path output of an SSZ encoded BeaconState.
+	CorrectSignedBeaconBlockMhKey string            // The correct MhKey for the signedBeaconBlock
+	CorrectBeaconStateMhKey       string            // The correct MhKey beaconState
+	CorrectParentRoot             string            // The correct parent root
+	CorrectEth1BlockHash          string            // The correct eth1blockHash
+}
+
+// A structure that can be utilized to mimic and existing SSZ object but change it ever so slightly.
+// This is used because creating your own SSZ object is a headache.
+type MimicConfig struct {
+	ParentRoot  string // The parent root, leave it empty if you want a to use the universal
+	ForkVersion string // Specify the fork version. This is needed as a workaround to create dummy SignedBeaconBlocks.
+}
+
+var _ = Describe("Capturehead", Label("head"), func() {
 
 	Describe("Receiving New Head SSE messages", Label("unit", "behavioral"), func() {
 		Context("Correctly formatted Phase0 Block", func() {
@@ -239,8 +270,8 @@ var _ = Describe("Capturehead", func() {
 				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
 				defer httpmock.DeactivateAndReset()
 				BeaconNodeTester.testProcessBlock(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, 3, maxRetry, 1, 0, 0)
-				validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, "0x629ae1587895043076500f4f5dcb202a47c2fc95d5b5c548cb83bc97bd2dbfe1", "0x8d3f027beef5cbd4f8b29fc831aba67a5d74768edca529f5596f07fd207865e1", "/blocks/QHVAEQBQGQ4TKNJUGAYDGNZRGM2DOZJSGZTDMMLEG5QTIYTCMRQTKYRSGNTGCMDCGI2WINLGMM2DMNJRGYYGMMTBHEZGINJSME3DGYRZGE4WE")
+				validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, BeaconNodeTester.TestEvents["100"].CorrectParentRoot, BeaconNodeTester.TestEvents["100"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["100"].CorrectSignedBeaconBlockMhKey)
-				validateBeaconState(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, "/blocks/QHVAEQRQPBTDEOBWMEYDGNZZMMYDGOBWMEZWGN3CMUZDQZBQGVSDQMRZMY4GKYRXMIZDQMDDMM4WKZDFGE2TINBZMFTDEMDFMJRWIMBWME3WCNJW")
+				validateBeaconState(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, BeaconNodeTester.TestEvents["100"].CorrectBeaconStateMhKey)
 
 			})
 		})
@@ -250,8 +281,8 @@ var _ = Describe("Capturehead", func() {
 				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
 				defer httpmock.DeactivateAndReset()
 				BeaconNodeTester.testProcessBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, 74240, maxRetry, 1, 0, 0)
-				validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, "0x83154c692b9cce50bdf56af5a933da0a020ed7ff809a6a8236301094c7f25276", "0xd74b1c60423651624de6bb301ac25808951c167ba6ecdd9b2e79b4315aee8202", "/blocks/QHVAEQRQPA2DGOJSGM3TEYZVMY3GKMZZGQ4TSZJTGFRGMOJSGQZTQODCGU4DCNJWGM4TCMBTGE2DSZRQMY2TIZRYME2DKMZXG4ZWEMJYGAZDGMBR")
+				validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, BeaconNodeTester.TestEvents["2375703"].CorrectParentRoot, BeaconNodeTester.TestEvents["2375703"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["2375703"].CorrectSignedBeaconBlockMhKey)
-				validateBeaconState(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, "/blocks/QHVAEQRQPBRDMMRRGVRDKNRQGI3TGYLGGYZWKYZXMUYDCMJVG4ZGENRQMVRTCY3BGBRDAMRTGJTDQZTGGQ2GMY3EGRSWINJVMM3TKMRWMU4TMNDF")
+				validateBeaconState(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, BeaconNodeTester.TestEvents["2375703"].CorrectBeaconStateMhKey)
 			})
 		})
 		Context("Correctly formatted Altair Test Blocks", func() {
@@ -315,7 +346,7 @@ var _ = Describe("Capturehead", func() {
 
 		//	})
 		//})
-		Context("When the proper SSZ objects are not served", Label("now"), func() {
+		Context("When the proper SSZ objects are not served", func() {
 			It("Should return an error, and add the slot to the knownGaps table.", func() {
 				bc := setUpTest(BeaconNodeTester.TestConfig, "101")
 				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
@@ -403,7 +434,7 @@ var _ = Describe("Capturehead", func() {
 				BeaconNodeTester.testMultipleReorgs(bc, TestEvents["100-dummy"].HeadMessage, TestEvents["100-dummy-2"].HeadMessage, TestEvents["100"].HeadMessage, 3, maxRetry)
 			})
 		})
-		Context("Altair: Multiple reorgs have occurred on this slot", Label("new"), func() {
+		Context("Altair: Multiple reorgs have occurred on this slot", func() {
 			It("The previous blocks should be marked as 'forked', the new block should be the only one marked as 'proposed'.", func() {
 				bc := setUpTest(BeaconNodeTester.TestConfig, "2375702")
 				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
@@ -426,6 +457,8 @@ type Config struct {
 	dbPassword              string
 	dbDriver                string
 	knownGapsTableIncrement int
+	bcUniqueIdentifier      int
+	checkDb                 bool
 }
 
 //////////////////////////////////////////////////////
@@ -435,23 +468,25 @@ type Config struct {
 // Must run before each test. We can't use the beforeEach because of the way
 // Gingko treats race conditions.
 func setUpTest(config Config, maxSlot string) *beaconclient.BeaconClient {
-	bc := *beaconclient.CreateBeaconClient(context.Background(), config.protocol, config.address, config.port)
+	bc, err := beaconclient.CreateBeaconClient(context.Background(), config.protocol, config.address, config.port, config.knownGapsTableIncrement, config.bcUniqueIdentifier, config.checkDb)
+	Expect(err).ToNot(HaveOccurred())
 	db, err := postgres.SetupPostgresDb(config.dbHost, config.dbPort, config.dbName, config.dbUser, config.dbPassword, config.dbDriver)
 	Expect(err).ToNot(HaveOccurred())
 
 	// Drop all records from the DB.
-	clearEthclDbTables(db)
+	clearEthBeaconDbTables(db)
 
-	// Add an slot to the ethcl.slots table so it we can control how known_gaps are handled.
+	// Add an slot to the eth_beacon.slots table so it we can control how known_gaps are handled.
 	writeSlot(db, maxSlot)
 	bc.Db = db
 
-	return &bc
+	return bc
 }
 
-// A helper function to validate the expected output from the ethcl.slots table.
+// A helper function to validate the expected output from the eth_beacon.slots table.
 func validateSlot(bc *beaconclient.BeaconClient, headMessage beaconclient.Head, correctEpoch int, correctStatus string) {
 	epoch, dbSlot, blockRoot, stateRoot, status := queryDbSlotAndBlock(bc.Db, headMessage.Slot, headMessage.Block)
+	log.Info("validateSlot: ", headMessage)
 	baseSlot, err := strconv.Atoi(headMessage.Slot)
 	Expect(err).ToNot(HaveOccurred())
 	Expect(dbSlot).To(Equal(baseSlot))
@@ -461,27 +496,29 @@ func validateSlot(bc *beaconclient.BeaconClient, headMessage beaconclient.Head,
 	Expect(status).To(Equal(correctStatus))
 }
 
-// A helper function to validate the expected output from the ethcl.signed_beacon_block table.
+// A helper function to validate the expected output from the eth_beacon.signed_block table.
 func validateSignedBeaconBlock(bc *beaconclient.BeaconClient, headMessage beaconclient.Head, correctParentRoot string, correctEth1BlockHash string, correctMhKey string) {
 	dbSlot, blockRoot, parentRoot, eth1BlockHash, mhKey := queryDbSignedBeaconBlock(bc.Db, headMessage.Slot, headMessage.Block)
+	log.Info("validateSignedBeaconBlock: ", headMessage)
 	baseSlot, err := strconv.Atoi(headMessage.Slot)
 	Expect(err).ToNot(HaveOccurred())
 	Expect(dbSlot).To(Equal(baseSlot))
 	Expect(blockRoot).To(Equal(headMessage.Block))
-	Expect(parentRoot, correctParentRoot)
+	Expect(parentRoot).To(Equal(correctParentRoot))
-	Expect(eth1BlockHash, correctEth1BlockHash)
+	Expect(eth1BlockHash).To(Equal(correctEth1BlockHash))
-	Expect(mhKey, correctMhKey)
+	Expect(mhKey).To(Equal(correctMhKey))
 
 }
 
-// A helper function to validate the expected output from the ethcl.beacon_state table.
+// A helper function to validate the expected output from the eth_beacon.state table.
 func validateBeaconState(bc *beaconclient.BeaconClient, headMessage beaconclient.Head, correctMhKey string) {
 	dbSlot, stateRoot, mhKey := queryDbBeaconState(bc.Db, headMessage.Slot, headMessage.State)
+	log.Info("validateBeaconState: ", headMessage)
 	baseSlot, err := strconv.Atoi(headMessage.Slot)
 	Expect(err).ToNot(HaveOccurred())
 	Expect(dbSlot).To(Equal(baseSlot))
 	Expect(stateRoot).To(Equal(headMessage.State))
-	Expect(mhKey, correctMhKey)
+	Expect(mhKey).To(Equal(correctMhKey))
 
 }
 
@@ -491,7 +528,7 @@ func sendHeadMessage(bc *beaconclient.BeaconClient, head beaconclient.Head, maxR
 	data, err := json.Marshal(head)
 	Expect(err).ToNot(HaveOccurred())
 
-	startInserts := atomic.LoadUint64(&bc.Metrics.HeadTrackingInserts)
+	startInserts := atomic.LoadUint64(&bc.Metrics.SlotInserts)
 	bc.HeadTracking.MessagesCh <- &sse.Event{
 		ID:    []byte{},
 		Data:  data,
@@ -499,33 +536,35 @@ func sendHeadMessage(bc *beaconclient.BeaconClient, head beaconclient.Head, maxR
 		Retry: []byte{},
 	}
 	curRetry := 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingInserts) != startInserts+expectedSuccessfulInserts {
+	for atomic.LoadUint64(&bc.Metrics.SlotInserts) != startInserts+expectedSuccessfulInserts {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
 			log.WithFields(log.Fields{
 				"startInsert":               startInserts,
-				"currentValue": atomic.LoadUint64(&bc.Metrics.HeadTrackingInserts),
+				"expectedSuccessfulInserts": expectedSuccessfulInserts,
+				"currentValue":              atomic.LoadUint64(&bc.Metrics.SlotInserts),
 			}).Error("HeadTracking Insert wasn't incremented properly.")
 			Fail("Too many retries have occurred.")
 		}
 	}
 }
 
-// A helper function to query the ethcl.slots table based on the slot and block_root
+// A helper function to query the eth_beacon.slots table based on the slot and block_root
 func queryDbSlotAndBlock(db sql.Database, querySlot string, queryBlockRoot string) (int, int, string, string, string) {
-	sqlStatement := `SELECT epoch, slot, block_root, state_root, status FROM ethcl.slots WHERE slot=$1 AND block_root=$2;`
+	sqlStatement := `SELECT epoch, slot, block_root, state_root, status FROM eth_beacon.slots WHERE slot=$1 AND block_root=$2;`
 	var epoch, slot int
 	var blockRoot, stateRoot, status string
-	row := db.QueryRow(context.Background(), sqlStatement, querySlot, queryBlockRoot)
+	log.Debug("Starting to query the eth_beacon.slots table, ", querySlot, " ", queryBlockRoot)
-	err := row.Scan(&epoch, &slot, &blockRoot, &stateRoot, &status)
+	err := db.QueryRow(context.Background(), sqlStatement, querySlot, queryBlockRoot).Scan(&epoch, &slot, &blockRoot, &stateRoot, &status)
 	Expect(err).ToNot(HaveOccurred())
+	log.Debug("Querying the eth_beacon.slots table complete")
 	return epoch, slot, blockRoot, stateRoot, status
 }
 
-// A helper function to query the ethcl.signed_beacon_block table based on the slot and block_root.
+// A helper function to query the eth_beacon.signed_block table based on the slot and block_root.
 func queryDbSignedBeaconBlock(db sql.Database, querySlot string, queryBlockRoot string) (int, string, string, string, string) {
-	sqlStatement := `SELECT slot, block_root, parent_block_root, eth1_block_hash, mh_key FROM ethcl.signed_beacon_block WHERE slot=$1 AND block_root=$2;`
+	sqlStatement := `SELECT slot, block_root, parent_block_root, eth1_block_hash, mh_key FROM eth_beacon.signed_block WHERE slot=$1 AND block_root=$2;`
 	var slot int
 	var blockRoot, parent_block_root, eth1_block_hash, mh_key string
 	row := db.QueryRow(context.Background(), sqlStatement, querySlot, queryBlockRoot)
@@ -534,9 +573,9 @@ func queryDbSignedBeaconBlock(db sql.Database, querySlot string, queryBlockRoot
 	return slot, blockRoot, parent_block_root, eth1_block_hash, mh_key
 }
 
-// A helper function to query the ethcl.signed_beacon_block table based on the slot and block_root.
+// A helper function to query the eth_beacon.signed_block table based on the slot and block_root.
 func queryDbBeaconState(db sql.Database, querySlot string, queryStateRoot string) (int, string, string) {
-	sqlStatement := `SELECT slot, state_root, mh_key FROM ethcl.beacon_state WHERE slot=$1 AND state_root=$2;`
+	sqlStatement := `SELECT slot, state_root, mh_key FROM eth_beacon.state WHERE slot=$1 AND state_root=$2;`
 	var slot int
 	var stateRoot, mh_key string
 	row := db.QueryRow(context.Background(), sqlStatement, querySlot, queryStateRoot)
@@ -548,7 +587,7 @@ func queryDbBeaconState(db sql.Database, querySlot string, queryStateRoot string
 // Count the entries in the knownGaps table.
 func countKnownGapsTable(db sql.Database) int {
 	var count int
-	sqlStatement := "SELECT COUNT(*) FROM ethcl.known_gaps"
+	sqlStatement := "SELECT COUNT(*) FROM eth_beacon.known_gaps"
 	err := db.QueryRow(context.Background(), sqlStatement).Scan(&count)
 	Expect(err).ToNot(HaveOccurred())
 	return count
@@ -556,25 +595,24 @@ func countKnownGapsTable(db sql.Database) int {
 
 // Return the start and end slot
 func queryKnownGaps(db sql.Database, queryStartGap string, QueryEndGap string) (int, int) {
-	sqlStatement := `SELECT start_slot, end_slot FROM ethcl.known_gaps WHERE start_slot=$1 AND end_slot=$2;`
+	sqlStatement := `SELECT start_slot, end_slot FROM eth_beacon.known_gaps WHERE start_slot=$1 AND end_slot=$2;`
 	var startGap, endGap int
 	row := db.QueryRow(context.Background(), sqlStatement, queryStartGap, QueryEndGap)
 	err := row.Scan(&startGap, &endGap)
 	Expect(err).ToNot(HaveOccurred())
 	return startGap, endGap
-
 }
 
-// A function that will remove all entries from the ethcl tables for you.
+// A function that will remove all entries from the eth_beacon tables for you.
-func clearEthclDbTables(db sql.Database) {
+func clearEthBeaconDbTables(db sql.Database) {
-	deleteQueries := []string{"DELETE FROM ethcl.slots;", "DELETE FROM ethcl.signed_beacon_block;", "DELETE FROM ethcl.beacon_state;", "DELETE FROM ethcl.known_gaps;"}
+	deleteQueries := []string{"DELETE FROM eth_beacon.slots;", "DELETE FROM eth_beacon.signed_block;", "DELETE FROM eth_beacon.state;", "DELETE FROM eth_beacon.known_gaps;", "DELETE FROM eth_beacon.historic_process;", "DELETE FROM public.blocks;"}
 	for _, queries := range deleteQueries {
 		_, err := db.Exec(context.Background(), queries)
 		Expect(err).ToNot(HaveOccurred())
 	}
 }
 
-// Write an entry to the ethcl.slots table with just a slot number
+// Write an entry to the eth_beacon.slots table with just a slot number
 func writeSlot(db sql.Database, slot string) {
 	_, err := db.Exec(context.Background(), beaconclient.UpsertSlotsStmt, "0", slot, "", "", "")
 	Expect(err).ToNot(HaveOccurred())
@@ -650,8 +688,7 @@ func (tbc TestBeaconNode) SetupBeaconNodeMock(TestEvents map[string]Message, pro
 			id := httpmock.MustGetSubmatch(req, 1)
 			dat, err := tbc.provideSsz(id, "state", dummyParentRoot)
 			if err != nil {
-				Expect(err).NotTo(HaveOccurred())
+				return httpmock.NewStringResponse(404, fmt.Sprintf("Unable to find file for %s", id)), nil
-				return httpmock.NewStringResponse(404, fmt.Sprintf("Unable to find file for %s", id)), err
 			}
 			return httpmock.NewBytesResponse(200, dat), nil
 		},
@@ -664,12 +701,37 @@ func (tbc TestBeaconNode) SetupBeaconNodeMock(TestEvents map[string]Message, pro
 			id := httpmock.MustGetSubmatch(req, 1)
 			dat, err := tbc.provideSsz(id, "block", dummyParentRoot)
 			if err != nil {
-				Expect(err).NotTo(HaveOccurred())
+				return httpmock.NewStringResponse(404, fmt.Sprintf("Unable to find file for %s", id)), nil
-				return httpmock.NewStringResponse(404, fmt.Sprintf("Unable to find file for %s", id)), err
 			}
 			return httpmock.NewBytesResponse(200, dat), nil
 		},
 	)
+	// Not needed but could be useful to have.
+	blockRootUrl := `=~^` + protocol + "://" + address + ":" + strconv.Itoa(port) + "/eth/v1/beacon/blocks/" + `([^/]+)` + "/root"
+	httpmock.RegisterResponder("GET", blockRootUrl,
+		func(req *http.Request) (*http.Response, error) {
+			// Get ID from request
+			slot := httpmock.MustGetSubmatch(req, 1)
+			dat, err := tbc.provideBlockRoot(slot)
+			if err != nil {
+				Expect(err).NotTo(HaveOccurred())
+				return httpmock.NewStringResponse(404, fmt.Sprintf("Unable to find block root for %s", slot)), err
+			}
+			return httpmock.NewBytesResponse(200, dat), nil
+		},
+	)
+}
+
+// Provide the Block root
+func (tbc TestBeaconNode) provideBlockRoot(slot string) ([]byte, error) {
+	for _, val := range tbc.TestEvents {
+		if val.HeadMessage.Slot == slot && val.MimicConfig == nil {
+			block, err := hex.DecodeString(val.HeadMessage.Block[2:])
+			Expect(err).ToNot(HaveOccurred())
+			return block, nil
+		}
+	}
+	return nil, fmt.Errorf("Unable to find the Blockroot in test object.")
 }
 
 // A function to mimic querying the state from the beacon node. We simply get the SSZ file are return it.
@@ -679,12 +741,12 @@ func (tbc TestBeaconNode) provideSsz(slotIdentifier string, sszIdentifier string
 
 	for _, val := range tbc.TestEvents {
 		if sszIdentifier == "state" {
-			if val.HeadMessage.Slot == slotIdentifier || val.HeadMessage.State == slotIdentifier {
+			if (val.HeadMessage.Slot == slotIdentifier && val.MimicConfig == nil) || val.HeadMessage.State == slotIdentifier {
 				slotFile = val.BeaconState
 				Message = val
 			}
 		} else if sszIdentifier == "block" {
-			if val.HeadMessage.Slot == slotIdentifier || val.HeadMessage.Block == slotIdentifier {
+			if (val.HeadMessage.Slot == slotIdentifier && val.MimicConfig == nil) || val.HeadMessage.Block == slotIdentifier {
 				slotFile = val.SignedBeaconBlock
 				Message = val
 			}
@@ -770,16 +832,16 @@ func (tbc TestBeaconNode) provideSsz(slotIdentifier string, sszIdentifier string
 // Helper function to test three reorg messages. There are going to be many functions like this,
 // Because we need to test the same logic for multiple phases.
 func (tbc TestBeaconNode) testMultipleReorgs(bc *beaconclient.BeaconClient, firstHead beaconclient.Head, secondHead beaconclient.Head, thirdHead beaconclient.Head, epoch int, maxRetry int) {
-	go bc.CaptureHead(tbc.TestConfig.knownGapsTableIncrement)
+	go bc.CaptureHead()
 	time.Sleep(1 * time.Second)
 
-	log.Info("Sending Phase0 Messages to BeaconClient")
+	log.Info("Sending Messages to BeaconClient")
 	sendHeadMessage(bc, firstHead, maxRetry, 1)
 	sendHeadMessage(bc, secondHead, maxRetry, 1)
 	sendHeadMessage(bc, thirdHead, maxRetry, 1)
 
 	curRetry := 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingReorgs) != 2 {
+	for atomic.LoadUint64(&bc.Metrics.ReorgInserts) != 2 {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
@@ -810,7 +872,7 @@ func (tbc TestBeaconNode) testMultipleReorgs(bc *beaconclient.BeaconClient, firs
 	}
 
 	curRetry = 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingReorgs) != 3 {
+	for atomic.LoadUint64(&bc.Metrics.ReorgInserts) != 3 {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
@@ -818,7 +880,7 @@ func (tbc TestBeaconNode) testMultipleReorgs(bc *beaconclient.BeaconClient, firs
 		}
 	}
 
-	if bc.Metrics.HeadTrackingKnownGaps != 0 {
+	if bc.Metrics.KnownGapsInserts != 0 {
 		Fail("We found gaps when processing a single block")
 	}
 
@@ -832,25 +894,25 @@ func (tbc TestBeaconNode) testMultipleReorgs(bc *beaconclient.BeaconClient, firs
 
 // A test to validate a single block was processed correctly
 func (tbc TestBeaconNode) testProcessBlock(bc *beaconclient.BeaconClient, head beaconclient.Head, epoch int, maxRetry int, expectedSuccessInsert uint64, expectedKnownGaps uint64, expectedReorgs uint64) {
-	go bc.CaptureHead(tbc.TestConfig.knownGapsTableIncrement)
+	go bc.CaptureHead()
 	time.Sleep(1 * time.Second)
 	sendHeadMessage(bc, head, maxRetry, expectedSuccessInsert)
 
 	curRetry := 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingKnownGaps) != expectedKnownGaps {
+	for atomic.LoadUint64(&bc.Metrics.KnownGapsInserts) != expectedKnownGaps {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
-			Fail(fmt.Sprintf("Wrong gap metrics, got: %d, wanted %d", bc.Metrics.HeadTrackingKnownGaps, expectedKnownGaps))
+			Fail(fmt.Sprintf("Wrong gap metrics, got: %d, wanted %d", bc.Metrics.KnownGapsInserts, expectedKnownGaps))
 		}
 	}
 
 	curRetry = 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingReorgs) != expectedReorgs {
+	for atomic.LoadUint64(&bc.Metrics.ReorgInserts) != expectedReorgs {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
-			Fail(fmt.Sprintf("Wrong reorg metrics, got: %d, wanted %d", bc.Metrics.HeadTrackingKnownGaps, expectedKnownGaps))
+			Fail(fmt.Sprintf("Wrong reorg metrics, got: %d, wanted %d", bc.Metrics.KnownGapsInserts, expectedKnownGaps))
 		}
 	}
 
@@ -862,14 +924,14 @@ func (tbc TestBeaconNode) testProcessBlock(bc *beaconclient.BeaconClient, head b
 // A test that ensures that if two HeadMessages occur for a single slot they are marked
 // as proposed and forked correctly.
 func (tbc TestBeaconNode) testMultipleHead(bc *beaconclient.BeaconClient, firstHead beaconclient.Head, secondHead beaconclient.Head, epoch int, maxRetry int) {
-	go bc.CaptureHead(tbc.TestConfig.knownGapsTableIncrement)
+	go bc.CaptureHead()
 	time.Sleep(1 * time.Second)
 
 	sendHeadMessage(bc, firstHead, maxRetry, 1)
 	sendHeadMessage(bc, secondHead, maxRetry, 1)
 
 	curRetry := 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingReorgs) != 1 {
+	for atomic.LoadUint64(&bc.Metrics.ReorgInserts) != 1 {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
@@ -877,7 +939,7 @@ func (tbc TestBeaconNode) testMultipleHead(bc *beaconclient.BeaconClient, firstH
 		}
 	}
 
-	if bc.Metrics.HeadTrackingKnownGaps != 0 {
+	if bc.Metrics.KnownGapsInserts != 0 {
 		Fail("We found gaps when processing a single block")
 	}
 
@@ -889,7 +951,8 @@ func (tbc TestBeaconNode) testMultipleHead(bc *beaconclient.BeaconClient, firstH
 // A test that ensures that if two HeadMessages occur for a single slot they are marked
 // as proposed and forked correctly.
 func (tbc TestBeaconNode) testKnownGapsMessages(bc *beaconclient.BeaconClient, tableIncrement int, expectedEntries uint64, maxRetry int, msg ...beaconclient.Head) {
-	go bc.CaptureHead(tableIncrement)
+	bc.KnownGapTableIncrement = tableIncrement
+	go bc.CaptureHead()
 	time.Sleep(1 * time.Second)
 
 	for _, headMsg := range msg {
@@ -897,7 +960,7 @@ func (tbc TestBeaconNode) testKnownGapsMessages(bc *beaconclient.BeaconClient, t
 	}
 
 	curRetry := 0
-	for atomic.LoadUint64(&bc.Metrics.HeadTrackingKnownGaps) != expectedEntries {
+	for atomic.LoadUint64(&bc.Metrics.KnownGapsInserts) != expectedEntries {
 		time.Sleep(1 * time.Second)
 		curRetry = curRetry + 1
 		if curRetry == maxRetry {
@@ -909,7 +972,7 @@ func (tbc TestBeaconNode) testKnownGapsMessages(bc *beaconclient.BeaconClient, t
 	knownGapCount := countKnownGapsTable(bc.Db)
 	Expect(knownGapCount).To(Equal(int(expectedEntries)))
 
-	if atomic.LoadUint64(&bc.Metrics.HeadTrackingReorgs) != 0 {
+	if atomic.LoadUint64(&bc.Metrics.ReorgInserts) != 0 {
 		Fail("We found reorgs when we didn't expect it")
 	}
 }

pkg/beaconclient/capturehistoric.go

@@ -0,0 +1,171 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file will call all the functions to start and stop capturing the head of the beacon chain.
+
+package beaconclient
+
+import (
+	"context"
+	"fmt"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+	"golang.org/x/sync/errgroup"
+)
+
+// This function will perform all the heavy lifting for tracking the head of the chain.
+func (bc *BeaconClient) CaptureHistoric(ctx context.Context, maxWorkers int) []error {
+	log.Info("We are starting the historical processing service.")
+	bc.HistoricalProcess = HistoricProcessing{db: bc.Db, metrics: bc.Metrics, uniqueNodeIdentifier: bc.UniqueNodeIdentifier}
+	errs := handleBatchProcess(ctx, maxWorkers, bc.HistoricalProcess, bc.HistoricalProcess.db, bc.ServerEndpoint, bc.Metrics, bc.CheckDb)
+	log.Debug("Exiting Historical")
+	return errs
+}
+
+// This function will perform all the necessary clean up tasks for stopping historical processing.
+func (bc *BeaconClient) StopHistoric(cancel context.CancelFunc) error {
+	log.Info("We are stopping the historical processing service.")
+	err := bc.HistoricalProcess.releaseDbLocks(cancel)
+	if err != nil {
+		loghelper.LogError(err).WithField("uniqueIdentifier", bc.UniqueNodeIdentifier).Error("We were unable to remove the locks from the eth_beacon.historic_processing table. Manual Intervention is needed!")
+	}
+	return nil
+}
+
+// An interface to enforce any batch processing. Currently there are two use cases for this.
+//
+// 1. Historic Processing
+//
+// 2. Known Gaps Processing
+type BatchProcessing interface {
+	getSlotRange(context.Context, chan<- slotsToProcess) []error       // Write the slots to process in a channel, return an error if you cant get the next slots to write.
+	handleProcessingErrors(context.Context, <-chan batchHistoricError) // Custom logic to handle errors.
+	removeTableEntry(context.Context, <-chan slotsToProcess) error     // With the provided start and end slot, remove the entry from the database.
+	releaseDbLocks(context.CancelFunc) error                           // Update the checked_out column to false for whatever table is being updated.
+}
+
+/// ^^^
+// Might be better to remove the interface and create a single struct that historicalProcessing
+// and knownGapsProcessing can use. The struct would contain all the SQL strings that they need.
+// And the only difference in logic for processing would be within the error handling.
+// Which can be a function we pass into handleBatchProcess()
+
+// A struct to pass around indicating a table entry for slots to process.
+type slotsToProcess struct {
+	startSlot int // The start slot
+	endSlot   int // The end slot
+}
+
+type batchHistoricError struct {
+	err        error  // The error that occurred when attempting to a slot
+	errProcess string // The process that caused the error.
+	slot       int    // The slot which the error is for.
+}
+
+// Wrapper function for the BatchProcessing interface.
+// This function will take the structure that needs batch processing.
+// It follows a generic format.
+// Get new entries from any given table.
+// 1. Add it to the slotsCh.
+//
+// 2. Run the maximum specified workers to handle individual slots. We need a maximum because we don't want
+// To store too many SSZ objects in memory.
+//
+// 3. Process the slots and send the err to the ErrCh. Each structure can define how it wants its own errors handled.
+//
+// 4. Remove the slot entry from the DB.
+//
+// 5. Handle any errors.
+func handleBatchProcess(ctx context.Context, maxWorkers int, bp BatchProcessing, db sql.Database, serverEndpoint string, metrics *BeaconClientMetrics, checkDb bool) []error {
+	slotsCh := make(chan slotsToProcess)
+	workCh := make(chan int)
+	processedCh := make(chan slotsToProcess)
+	errCh := make(chan batchHistoricError)
+	finalErrCh := make(chan []error, 1)
+
+	// Start workers
+	for w := 1; w <= maxWorkers; w++ {
+		log.WithFields(log.Fields{"maxWorkers": maxWorkers}).Debug("Starting batch  processing workers")
+		go processSlotRangeWorker(ctx, workCh, errCh, db, serverEndpoint, metrics, checkDb)
+	}
+
+	// Process all ranges and send each individual slot to the worker.
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case slots := <-slotsCh:
+				if slots.startSlot > slots.endSlot {
+					log.Error("We received a batch process request where the startSlot is greater than the end slot.")
+					errCh <- batchHistoricError{
+						err:        fmt.Errorf("We received a startSlot where the start was greater than the end."),
+						errProcess: "RangeOrder",
+						slot:       slots.startSlot,
+					}
+					errCh <- batchHistoricError{
+						err:        fmt.Errorf("We received a endSlot where the start was greater than the end."),
+						errProcess: "RangeOrder",
+						slot:       slots.endSlot,
+					}
+				} else if slots.startSlot == slots.endSlot {
+					log.WithField("slot", slots.startSlot).Debug("Added new slot to workCh")
+					workCh <- slots.startSlot
+				} else {
+					for i := slots.startSlot; i <= slots.endSlot; i++ {
+						workCh <- i
+						log.WithField("slot", i).Debug("Added new slot to workCh")
+					}
+					processedCh <- slots
+				}
+			}
+
+		}
+	}()
+
+	// Remove entries, end the application if a row cannot be removed..
+	go func() {
+		errG := new(errgroup.Group)
+		errG.Go(func() error {
+			return bp.removeTableEntry(ctx, processedCh)
+		})
+		if err := errG.Wait(); err != nil {
+			finalErrCh <- []error{err}
+		}
+	}()
+	// Process errors from slot processing.
+	go bp.handleProcessingErrors(ctx, errCh)
+
+	// Get slots from the DB.
+	go func() {
+		errs := bp.getSlotRange(ctx, slotsCh) // Periodically adds new entries....
+		if errs != nil {
+			finalErrCh <- errs
+		}
+		finalErrCh <- nil
+		log.Debug("We are stopping the processing of adding new entries")
+	}()
+	log.Debug("Waiting for shutdown signal from channel")
+	select {
+	case <-ctx.Done():
+		log.Debug("Received shutdown signal from channel")
+		return nil
+	case errs := <-finalErrCh:
+		log.Debug("Finishing the batchProcess")
+		return errs
+	}
+}

pkg/beaconclient/capturehistoric_test.go

@@ -0,0 +1,290 @@
+package beaconclient_test
+
+import (
+	"context"
+	"fmt"
+	"sync/atomic"
+	"time"
+
+	"github.com/jarcoal/httpmock"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
+)
+
+var (
+	kgCheckCheckedOutStmt = `SELECT * FROM eth_beacon.known_gaps WHERE checked_out=true `
+	hpCheckCheckedOutStmt = `SELECT * FROM eth_beacon.historic_process WHERE checked_out=true `
+)
+
+var _ = Describe("Capturehistoric", func() {
+
+	Describe("Run the application in historic mode", Label("unit", "behavioral", "historical"), func() {
+		Context("Phase0 + Altairs: When we need to process a multiple blocks in a multiple entries in the eth_beacon.historic_process table.", Label("deb"), func() {
+			It("Successfully Process the Blocks", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "99")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 100, 101, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 2, 0, 0, 0)
+				// Run Two seperate processes
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 2375703, 2375703, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 3, 0, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+		Context("When the start block is greater than the endBlock", func() {
+			It("Should Add two entries to the knownGaps table", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "99")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 101, 100, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 0, 0, 2, 0)
+			})
+		})
+		Context("Processing the Genesis block", Label("genesis"), func() {
+			It("Should Process properly", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "100")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 0, 0, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 1, 0, 0, 0)
+				validateSlot(bc, BeaconNodeTester.TestEvents["0"].HeadMessage, 0, "proposed")
+				validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["0"].HeadMessage, BeaconNodeTester.TestEvents["0"].CorrectParentRoot, BeaconNodeTester.TestEvents["0"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["0"].CorrectSignedBeaconBlockMhKey)
+				validateBeaconState(bc, BeaconNodeTester.TestEvents["0"].HeadMessage, BeaconNodeTester.TestEvents["0"].CorrectBeaconStateMhKey)
+			})
+		})
+		Context("When there is a skipped slot", func() {
+			It("Should process the slot properly.", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "3797055")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 3797056, 3797056, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 1, 0, 0, 0)
+				validateSlot(bc, BeaconNodeTester.TestEvents["3797056"].HeadMessage, 118658, "skipped")
+			})
+		})
+	})
+	Describe("Running the Application to process Known Gaps", Label("unit", "behavioral", "knownGaps"), func() {
+		Context("Phase0 + Altairs: When we need to process a multiple blocks in a multiple entries in the eth_beacon.known_gaps table.", func() {
+			It("Successfully Process the Blocks", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "99")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToKnownGaps(bc, 100, 101)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 2, 0, 0, 0)
+				// Run Two seperate processes
+				BeaconNodeTester.writeEventToKnownGaps(bc, 2375703, 2375703)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 3, 0, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+		Context("When the start block is greater than the endBlock", func() {
+			It("Should Add two entries to the knownGaps table", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "104")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				BeaconNodeTester.writeEventToKnownGaps(bc, 101, 100)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 2, 0, 2, 0)
+			})
+		})
+		Context("When theres a reprocessing error", Label("reprocessingError"), func() {
+			It("Should update the reprocessing error.", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "99")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				// We dont have an entry in the BeaconNodeTester for this slot
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 105, 105, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 0, 0, 1, 0)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 0, 0, 1, 1)
+			})
+		})
+	})
+	Describe("Running the application in Historic, Head, and KnownGaps mode", Label("unit", "historical", "full"), func() {
+		Context("When it recieves a head, historic and known Gaps message (in order)", func() {
+			It("Should process them all successfully.", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "2375702")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				// Head
+				BeaconNodeTester.testProcessBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, 74240, maxRetry, 1, 0, 0)
+
+				// Historical
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 100, 100, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 2, 0, 0, 0)
+
+				// Known Gaps
+				BeaconNodeTester.writeEventToKnownGaps(bc, 101, 101)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 3, 0, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+		Context("When it recieves a historic, head and known Gaps message (in order)", func() {
+			It("Should process them all successfully.", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "2375702")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				// Historical
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 100, 100, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 1, 0, 0, 0)
+
+				// Head
+				BeaconNodeTester.testProcessBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, 74240, maxRetry, 1, 0, 0)
+
+				// Known Gaps
+				BeaconNodeTester.writeEventToKnownGaps(bc, 101, 101)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 3, 0, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+		Context("When it recieves a known Gaps, historic and head  message (in order)", func() {
+			It("Should process them all successfully.", func() {
+				bc := setUpTest(BeaconNodeTester.TestConfig, "2375702")
+				BeaconNodeTester.SetupBeaconNodeMock(BeaconNodeTester.TestEvents, BeaconNodeTester.TestConfig.protocol, BeaconNodeTester.TestConfig.address, BeaconNodeTester.TestConfig.port, BeaconNodeTester.TestConfig.dummyParentRoot)
+				defer httpmock.DeactivateAndReset()
+				// Known Gaps
+				BeaconNodeTester.writeEventToKnownGaps(bc, 101, 101)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 1, 0, 0, 0)
+
+				// Historical
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 100, 100, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 2, 0, 0, 0)
+
+				// Head
+				BeaconNodeTester.testProcessBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, 74240, maxRetry, 1, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+	})
+})
+
+// This function will write an even to the eth_beacon.known_gaps table
+func (tbc TestBeaconNode) writeEventToKnownGaps(bc *beaconclient.BeaconClient, startSlot, endSlot int) {
+	log.Debug("We are writing the necessary events to batch process")
+	insertKnownGapsStmt := `INSERT INTO eth_beacon.known_gaps (start_slot, end_slot)
+	VALUES ($1, $2);`
+	res, err := bc.Db.Exec(context.Background(), insertKnownGapsStmt, startSlot, endSlot)
+	Expect(err).ToNot(HaveOccurred())
+	rows, err := res.RowsAffected()
+	if rows != 1 {
+		Fail("We didnt write...")
+	}
+	Expect(err).ToNot(HaveOccurred())
+}
+
+// This function will write an even to the eth_beacon.known_gaps table
+func (tbc TestBeaconNode) writeEventToHistoricProcess(bc *beaconclient.BeaconClient, startSlot, endSlot, priority int) {
+	log.Debug("We are writing the necessary events to batch process")
+	insertHistoricProcessingStmt := `INSERT INTO eth_beacon.historic_process (start_slot, end_slot, priority)
+	VALUES ($1, $2, $3);`
+	res, err := bc.Db.Exec(context.Background(), insertHistoricProcessingStmt, startSlot, endSlot, priority)
+	Expect(err).ToNot(HaveOccurred())
+	rows, err := res.RowsAffected()
+	if rows != 1 {
+		Fail("We didnt write...")
+	}
+	Expect(err).ToNot(HaveOccurred())
+}
+
+// Start the CaptureHistoric function, and check for the correct inserted slots.
+func (tbc TestBeaconNode) runHistoricalProcess(bc *beaconclient.BeaconClient, maxWorkers int, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError uint64) {
+	ctx, cancel := context.WithCancel(context.Background())
+	go bc.CaptureHistoric(ctx, maxWorkers)
+	validateMetrics(bc, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError)
+	log.Debug("Calling the stop function for historical processing..")
+	err := bc.StopHistoric(cancel)
+	time.Sleep(5 * time.Second)
+	Expect(err).ToNot(HaveOccurred())
+	validateAllRowsCheckedOut(bc.Db, hpCheckCheckedOutStmt)
+}
+
+// Wrapper function that processes knownGaps
+func (tbc TestBeaconNode) runKnownGapsProcess(bc *beaconclient.BeaconClient, maxWorkers int, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError uint64) {
+	ctx, cancel := context.WithCancel(context.Background())
+	go bc.ProcessKnownGaps(ctx, maxWorkers)
+	validateMetrics(bc, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError)
+	err := bc.StopKnownGapsProcessing(cancel)
+	time.Sleep(5 * time.Second)
+	Expect(err).ToNot(HaveOccurred())
+	validateAllRowsCheckedOut(bc.Db, kgCheckCheckedOutStmt)
+}
+
+func validateMetrics(bc *beaconclient.BeaconClient, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError uint64) {
+	curRetry := 0
+	value := atomic.LoadUint64(&bc.Metrics.SlotInserts)
+	for value != expectedInserts {
+		time.Sleep(1 * time.Second)
+		curRetry = curRetry + 1
+		if curRetry == maxRetry {
+			Fail(fmt.Sprintf("Too many retries have occurred. The number of inserts expected %d, the number that actually occurred, %d", expectedInserts, atomic.LoadUint64(&bc.Metrics.SlotInserts)))
+		}
+		value = atomic.LoadUint64(&bc.Metrics.SlotInserts)
+	}
+	curRetry = 0
+	value = atomic.LoadUint64(&bc.Metrics.KnownGapsInserts)
+	for value != expectedKnownGaps {
+		time.Sleep(1 * time.Second)
+		curRetry = curRetry + 1
+		if curRetry == maxRetry {
+			Fail(fmt.Sprintf("Too many retries have occurred. The number of knownGaps expected %d, the number that actually occurred, %d", expectedKnownGaps, atomic.LoadUint64(&bc.Metrics.KnownGapsInserts)))
+		}
+		value = atomic.LoadUint64(&bc.Metrics.KnownGapsInserts)
+	}
+	curRetry = 0
+	value = atomic.LoadUint64(&bc.Metrics.KnownGapsReprocessError)
+	for value != expectedKnownGapsReprocessError {
+		time.Sleep(1 * time.Second)
+		curRetry = curRetry + 1
+		if curRetry == maxRetry {
+			Fail(fmt.Sprintf("Too many retries have occurred. The number of knownGapsReprocessingErrors expected %d, the number that actually occurred, %d", expectedKnownGapsReprocessError, value))
+		}
+		log.Debug("&bc.Metrics.KnownGapsReprocessError: ", &bc.Metrics.KnownGapsReprocessError)
+		value = atomic.LoadUint64(&bc.Metrics.KnownGapsReprocessError)
+	}
+	curRetry = 0
+	value = atomic.LoadUint64(&bc.Metrics.ReorgInserts)
+	for value != expectedReorgs {
+		time.Sleep(1 * time.Second)
+		curRetry = curRetry + 1
+		if curRetry == maxRetry {
+			Fail(fmt.Sprintf("Too many retries have occurred. The number of Reorgs expected %d, the number that actually occurred, %d", expectedReorgs, atomic.LoadUint64(&bc.Metrics.ReorgInserts)))
+		}
+		value = atomic.LoadUint64(&bc.Metrics.ReorgInserts)
+	}
+}
+
+// A wrapper function to validate a few popular blocks
+func validatePopularBatchBlocks(bc *beaconclient.BeaconClient) {
+	validateSlot(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, 3, "proposed")
+	validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, BeaconNodeTester.TestEvents["100"].CorrectParentRoot, BeaconNodeTester.TestEvents["100"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["100"].CorrectSignedBeaconBlockMhKey)
+	validateBeaconState(bc, BeaconNodeTester.TestEvents["100"].HeadMessage, BeaconNodeTester.TestEvents["100"].CorrectBeaconStateMhKey)
+
+	validateSlot(bc, BeaconNodeTester.TestEvents["101"].HeadMessage, 3, "proposed")
+	validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["101"].HeadMessage, BeaconNodeTester.TestEvents["100"].HeadMessage.Block, BeaconNodeTester.TestEvents["101"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["101"].CorrectSignedBeaconBlockMhKey)
+	validateBeaconState(bc, BeaconNodeTester.TestEvents["101"].HeadMessage, BeaconNodeTester.TestEvents["101"].CorrectBeaconStateMhKey)
+
+	validateSlot(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, 74240, "proposed")
+	validateSignedBeaconBlock(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, BeaconNodeTester.TestEvents["2375703"].CorrectParentRoot, BeaconNodeTester.TestEvents["2375703"].CorrectEth1BlockHash, BeaconNodeTester.TestEvents["2375703"].CorrectSignedBeaconBlockMhKey)
+	validateBeaconState(bc, BeaconNodeTester.TestEvents["2375703"].HeadMessage, BeaconNodeTester.TestEvents["2375703"].CorrectBeaconStateMhKey)
+}
+
+// Make sure all rows have checked_out as false.
+func validateAllRowsCheckedOut(db sql.Database, checkStmt string) {
+	res, err := db.Exec(context.Background(), checkStmt)
+	Expect(err).ToNot(HaveOccurred())
+	rows, err := res.RowsAffected()
+	Expect(err).ToNot(HaveOccurred())
+	Expect(rows).To(Equal(int64(0)))
+}

pkg/beaconclient/checkbeaconserverstatus.go

@@ -0,0 +1,207 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+package beaconclient
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync/atomic"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+)
+
+var (
+	MissingBeaconServerType error = fmt.Errorf("The beacon server type provided is not handled.")
+	LighthouseMissingSlots  error = fmt.Errorf("Anchor is not nil. This means lighthouse has not backfilled all the slots from Genesis to head.")
+)
+
+// The sync response when checking if the node is synced.
+type Sync struct {
+	Data SyncData `json:"data"`
+}
+
+// The sync data
+type SyncData struct {
+	IsSync       bool   `json:"is_syncing"`
+	HeadSlot     string `json:"head_slot"`
+	SyncDistance string `json:"sync_distance"`
+}
+
+// This function will check to see if we are synced up with the head of chain.
+//{"data":{"is_syncing":true,"head_slot":"62528","sync_distance":"3734299"}}
+func (bc BeaconClient) CheckHeadSync() (bool, error) {
+	syncStatus, err := bc.QueryHeadSync()
+	if err != nil {
+		return true, nil
+	}
+	return syncStatus.Data.IsSync, nil
+}
+
+func (bc BeaconClient) QueryHeadSync() (Sync, error) {
+	var syncStatus Sync
+	bcSync := bc.ServerEndpoint + BcSyncStatusEndpoint
+	resp, err := http.Get(bcSync)
+
+	if err != nil {
+		loghelper.LogEndpoint(bcSync).Error("Unable to check the sync status")
+		return syncStatus, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the sync status")
+		return syncStatus, fmt.Errorf("Querying the sync status returned a non 2xx status code, code provided: %d", resp.StatusCode)
+	}
+
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return syncStatus, err
+	}
+
+	if err := json.Unmarshal(body, &syncStatus); err != nil {
+		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{
+			"rawMessage": string(body),
+			"err":        err,
+		}).Error("Unable to unmarshal sync status")
+		return syncStatus, err
+	}
+	return syncStatus, nil
+}
+
+// The response when checking the lighthouse nodes DB info: /lighthouse/database/info
+type LighthouseDatabaseInfo struct {
+	SchemaVersion int        `json:"schema_version"`
+	Config        LhDbConfig `json:"config"`
+	Split         LhDbSplit  `json:"split"`
+	Anchor        LhDbAnchor `json:"anchor"`
+}
+
+// The config field within the DatabaseInfo response.
+type LhDbConfig struct {
+	SlotsPerRestorePoint              int  `json:"slots_per_restore_point"`
+	SlotsPerRestorePointSetExplicitly bool `json:"slots_per_restore_point_set_explicitly"`
+	BlockCacheSize                    int  `json:"block_cache_size"`
+	CompactOnInit                     bool `json:"compact_on_init"`
+	CompactOnPrune                    bool `json:"compact_on_prune"`
+}
+
+// The split field within the DatabaseInfo response.
+type LhDbSplit struct {
+	Slot      string `json:"slot"`
+	StateRoot string `json:"state_root"`
+}
+
+// The anchor field within the DatabaseInfo response.
+type LhDbAnchor struct {
+	AnchorSlot        string `json:"anchor_slot"`
+	OldestBlockSlot   string `json:"oldest_block_slot"`
+	OldestBlockParent string `json:"oldest_block_parent"`
+	StateUpperLimit   string `json:"state_upper_limit"`
+	StateLowerLimit   string `json:"state_lower_limit"`
+}
+
+// This function will notify us what the head slot is.
+func (bc BeaconClient) queryHeadSlotInBeaconServer() (int, error) {
+	syncStatus, err := bc.QueryHeadSync()
+	if err != nil {
+		return 0, nil
+	}
+	headSlot, err := strconv.Atoi(syncStatus.Data.HeadSlot)
+	if err != nil {
+		return 0, nil
+	}
+	return headSlot, nil
+}
+
+// return the lighthouse Database Info
+func (bc BeaconClient) queryLighthouseDbInfo() (LighthouseDatabaseInfo, error) {
+	var dbInfo LighthouseDatabaseInfo
+
+	lhDbInfo := bc.ServerEndpoint + LhDbInfoEndpoint
+	resp, err := http.Get(lhDbInfo)
+
+	if err != nil {
+		loghelper.LogEndpoint(lhDbInfo).Error("Unable to get the lighthouse database information")
+		return dbInfo, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		loghelper.LogEndpoint(lhDbInfo).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the lighthouse database information")
+		return dbInfo, fmt.Errorf("Querying the lighthouse database information returned a non 2xx status code, code provided: %d", resp.StatusCode)
+	}
+
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return dbInfo, err
+	}
+
+	if err := json.Unmarshal(body, &dbInfo); err != nil {
+		loghelper.LogEndpoint(lhDbInfo).WithFields(log.Fields{
+			"rawMessage": string(body),
+			"err":        err,
+		}).Error("Unable to unmarshal the lighthouse database information")
+		return dbInfo, err
+	}
+	return dbInfo, nil
+}
+
+// This function will tell us what the latest slot is that the beacon server has available. This is important as
+// it will ensure us that we have all slots prior to the given slot.
+func (bc BeaconClient) GetLatestSlotInBeaconServer(beaconServerType string) (int, error) {
+	switch strings.ToLower(beaconServerType) {
+	case "lighthouse":
+		headSlot, err := bc.queryHeadSlotInBeaconServer()
+		if err != nil {
+			return 0, err
+		}
+		lhDb, err := bc.queryLighthouseDbInfo()
+		if err != nil {
+			return 0, err
+		}
+		if lhDb.Anchor == (LhDbAnchor{}) {
+			//atomic.StoreInt64(&bc.LatestSlotInBeaconServer, int64(headSlot))
+			log.WithFields(log.Fields{
+				"headSlot": headSlot,
+			}).Info("Anchor is nil, the lighthouse client has all the nodes from genesis to head.")
+			return headSlot, nil
+		} else {
+			log.WithFields(log.Fields{
+				"lhDb.Anchor": lhDb.Anchor,
+			}).Info(LighthouseMissingSlots.Error())
+			log.Info("We will add a feature down the road to wait for anchor to be null, if its needed.")
+			return 0, LighthouseMissingSlots
+		}
+	default:
+		log.WithFields(log.Fields{"BeaconServerType": beaconServerType}).Error(MissingBeaconServerType.Error())
+		return 0, MissingBeaconServerType
+	}
+}
+
+// A wrapper function for updating the latest slot.
+func (bc BeaconClient) UpdateLatestSlotInBeaconServer(headSlot int64) {
+	curr := atomic.LoadInt64(&bc.LatestSlotInBeaconServer)
+	log.WithFields(log.Fields{
+		"Previous Latest Slot": curr,
+		"New Latest Slot":      headSlot,
+	}).Debug("Swapping Head Slot")
+	atomic.SwapInt64(&bc.LatestSlotInBeaconServer, int64(headSlot))
+}

pkg/beaconclient/checksyncstatus.go

@@ -1,72 +0,0 @@
-// VulcanizeDB
-// Copyright © 2022 Vulcanize
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-package beaconclient
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-
-	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
-)
-
-// The sync response
-type Sync struct {
-	Data SyncData `json:"data"`
-}
-
-// The sync data
-type SyncData struct {
-	IsSync       bool   `json:"is_syncing"`
-	HeadSlot     string `json:"head_slot"`
-	SyncDistance string `json:"sync_distance"`
-}
-
-// This function will check to see if we are synced up with the head of chain.
-//{"data":{"is_syncing":true,"head_slot":"62528","sync_distance":"3734299"}}
-func (bc BeaconClient) CheckHeadSync() (bool, error) {
-	bcSync := bc.ServerEndpoint + BcSyncStatusEndpoint
-	resp, err := http.Get(bcSync)
-
-	if err != nil {
-		loghelper.LogEndpoint(bcSync).Error("Unable to check the sync status")
-		return true, err
-	}
-
-	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the sync status")
-		return true, fmt.Errorf("Querying the sync status returned a non 2xx status code, code provided: %d", resp.StatusCode)
-	}
-
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return true, err
-	}
-
-	var syncStatus Sync
-	if err := json.Unmarshal(body, &syncStatus); err != nil {
-		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{
-			"rawMessage": string(body),
-			"err":        err,
-		}).Error("Unable to unmarshal sync status")
-		return true, err
-	}
-
-	return syncStatus.Data.IsSync, nil
-}

pkg/beaconclient/databasewrite.go

@@ -20,44 +20,63 @@ import (
 	"fmt"
 	"strconv"
 
+	"github.com/jackc/pgx/v4"
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+	"golang.org/x/sync/errgroup"
 )
 
 var (
-	// Statement to upsert to the ethcl.slots table.
+	// Statement to upsert to the eth_beacon.slots table.
 	UpsertSlotsStmt string = `
-INSERT INTO ethcl.slots (epoch, slot, block_root, state_root, status)
+INSERT INTO eth_beacon.slots (epoch, slot, block_root, state_root, status)
 VALUES ($1, $2, $3, $4, $5) ON CONFLICT (slot, block_root) DO NOTHING`
-	// Statement to upsert to the ethcl.signed_beacon_blocks table.
+	// Statement to upsert to the eth_beacon.signed_blocks table.
 	UpsertSignedBeaconBlockStmt string = `
-INSERT INTO ethcl.signed_beacon_block (slot, block_root, parent_block_root, eth1_block_hash, mh_key)
+INSERT INTO eth_beacon.signed_block (slot, block_root, parent_block_root, eth1_block_hash, mh_key)
 VALUES ($1, $2, $3, $4, $5) ON CONFLICT (slot, block_root) DO NOTHING`
-	// Statement to upsert to the ethcl.beacon_state table.
+	// Statement to upsert to the eth_beacon.state table.
 	UpsertBeaconState string = `
-INSERT INTO ethcl.beacon_state (slot, state_root, mh_key)
+INSERT INTO eth_beacon.state (slot, state_root, mh_key)
 VALUES ($1, $2, $3) ON CONFLICT (slot, state_root) DO NOTHING`
 	// Statement to upsert to the public.blocks table.
 	UpsertBlocksStmt string = `
 INSERT INTO public.blocks (key, data)
 VALUES ($1, $2) ON CONFLICT (key) DO NOTHING`
-	UpdateForkedStmt string = `UPDATE ethcl.slots
+	UpdateForkedStmt string = `UPDATE eth_beacon.slots
 	SET status='forked'
 	WHERE slot=$1 AND block_root<>$2
 	RETURNING block_root;`
-	UpdateProposedStmt string = `UPDATE ethcl.slots
+	UpdateProposedStmt string = `UPDATE eth_beacon.slots
 	SET status='proposed'
 	WHERE slot=$1 AND block_root=$2
 	RETURNING block_root;`
 	CheckProposedStmt string = `SELECT slot, block_root
-	FROM ethcl.slots
+	FROM eth_beacon.slots
 	WHERE slot=$1 AND block_root=$2;`
+	// Check to see if the slot and block_root exist in eth_beacon.signed_block
+	CheckSignedBeaconBlockStmt string = `SELECT slot, block_root
+	FROM eth_beacon.signed_block
+	WHERE slot=$1 AND block_root=$2`
+	// Check to see if the slot and state_root exist in eth_beacon.state
+	CheckBeaconStateStmt string = `SELECT slot, state_root
+	FROM eth_beacon.state
+	WHERE slot=$1 AND state_root=$2`
+	// Used to get a single slot from the table if it exists
+	QueryBySlotStmt string = `SELECT slot
+	FROM eth_beacon.slots
+	WHERE slot=$1`
 	// Statement to insert known_gaps. We don't pass in timestamp, we let the server take care of that one.
 	UpsertKnownGapsStmt string = `
-INSERT INTO ethcl.known_gaps (start_slot, end_slot, checked_out, reprocessing_error, entry_error, entry_process)
+INSERT INTO eth_beacon.known_gaps (start_slot, end_slot, checked_out, reprocessing_error, entry_error, entry_process)
 VALUES ($1, $2, $3, $4, $5, $6) on CONFLICT (start_slot, end_slot) DO NOTHING`
-	QueryHighestSlotStmt string = "SELECT COALESCE(MAX(slot), 0) FROM ethcl.slots"
+	UpsertKnownGapsErrorStmt string = `
+	UPDATE eth_beacon.known_gaps
+	SET reprocessing_error=$3, priority=priority+1
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Get the highest slot if one exists
+	QueryHighestSlotStmt string = "SELECT COALESCE(MAX(slot), 0) FROM eth_beacon.slots"
 )
 
 // Put all functionality to prepare the write object
@@ -65,6 +84,8 @@ VALUES ($1, $2, $3, $4, $5, $6) on CONFLICT (start_slot, end_slot) DO NOTHING`
 // Remove any of it from the processslot file.
 type DatabaseWriter struct {
 	Db                   sql.Database
+	Tx                   sql.Tx
+	Ctx                  context.Context
 	Metrics              *BeaconClientMetrics
 	DbSlots              *DbSlots
 	DbSignedBeaconBlock  *DbSignedBeaconBlock
@@ -75,14 +96,21 @@ type DatabaseWriter struct {
 
 func CreateDatabaseWrite(db sql.Database, slot int, stateRoot string, blockRoot string, parentBlockRoot string,
 	eth1BlockHash string, status string, rawSignedBeaconBlock []byte, rawBeaconState []byte, metrics *BeaconClientMetrics) (*DatabaseWriter, error) {
+	ctx := context.Background()
+	tx, err := db.Begin(ctx)
+	if err != nil {
+		loghelper.LogError(err).Error("We are unable to Begin a SQL transaction")
+	}
 	dw := &DatabaseWriter{
 		Db:                   db,
+		Tx:                   tx,
+		Ctx:                  ctx,
 		rawBeaconState:       rawBeaconState,
 		rawSignedBeaconBlock: rawSignedBeaconBlock,
 		Metrics:              metrics,
 	}
 	dw.prepareSlotsModel(slot, stateRoot, blockRoot, status)
-	err := dw.prepareSignedBeaconBlockModel(slot, blockRoot, parentBlockRoot, eth1BlockHash)
+	err = dw.prepareSignedBeaconBlockModel(slot, blockRoot, parentBlockRoot, eth1BlockHash)
 	if err != nil {
 		return nil, err
 	}
@@ -95,7 +123,7 @@ func CreateDatabaseWrite(db sql.Database, slot int, stateRoot string, blockRoot
 
 // Write functions to write each all together...
 // Should I do one atomic write?
-// Create the model for the ethcl.slots table
+// Create the model for the eth_beacon.slots table
 func (dw *DatabaseWriter) prepareSlotsModel(slot int, stateRoot string, blockRoot string, status string) {
 	dw.DbSlots = &DbSlots{
 		Epoch:     calculateEpoch(slot, bcSlotsPerEpoch),
@@ -108,7 +136,7 @@ func (dw *DatabaseWriter) prepareSlotsModel(slot int, stateRoot string, blockRoo
 
 }
 
-// Create the model for the ethcl.signed_beacon_block table.
+// Create the model for the eth_beacon.signed_block table.
 func (dw *DatabaseWriter) prepareSignedBeaconBlockModel(slot int, blockRoot string, parentBlockRoot string, eth1BlockHash string) error {
 	mhKey, err := MultihashKeyFromSSZRoot([]byte(dw.DbSlots.BlockRoot))
 	if err != nil {
@@ -125,7 +153,7 @@ func (dw *DatabaseWriter) prepareSignedBeaconBlockModel(slot int, blockRoot stri
 	return nil
 }
 
-// Create the model for the ethcl.beacon_state table.
+// Create the model for the eth_beacon.state table.
 func (dw *DatabaseWriter) prepareBeaconStateModel(slot int, stateRoot string) error {
 	mhKey, err := MultihashKeyFromSSZRoot([]byte(dw.DbSlots.StateRoot))
 	if err != nil {
@@ -140,49 +168,66 @@ func (dw *DatabaseWriter) prepareBeaconStateModel(slot int, stateRoot string) er
 	return nil
 }
 
-// Write all the data for a given slot.
+// Add all the data for a given slot to a SQL transaction.
-func (dw *DatabaseWriter) writeFullSlot() error {
+// Originally it wrote to each table individually.
+func (dw *DatabaseWriter) transactFullSlot() error {
 	// If an error occurs, write to knownGaps table.
 	log.WithFields(log.Fields{
 		"slot": dw.DbSlots.Slot,
 	}).Debug("Starting to write to the DB.")
-	err := dw.writeSlots()
+	err := dw.transactSlots()
 	if err != nil {
+		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("We couldn't write to the eth_beacon.slots table...")
 		return err
 	}
+	log.Debug("We finished writing to the eth_beacon.slots table.")
 	if dw.DbSlots.Status != "skipped" {
-		err = dw.writeSignedBeaconBlocks()
+		//errG, _ := errgroup.WithContext(context.Background())
+		//errG.Go(func() error {
+		//	return dw.transactSignedBeaconBlocks()
+		//})
+		//errG.Go(func() error {
+		//	return dw.transactBeaconState()
+		//})
+		//if err := errG.Wait(); err != nil {
+		//	loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("We couldn't write to the eth_beacon block or state table...")
+		//	return err
+		//}
+		// Might want to seperate writing to public.blocks so we can do this concurrently...
+		err := dw.transactSignedBeaconBlocks()
 		if err != nil {
+			loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("We couldn't write to the eth_beacon block table...")
 			return err
 		}
-		err = dw.writeBeaconState()
+		err = dw.transactBeaconState()
 		if err != nil {
+			loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("We couldn't write to the eth_beacon state table...")
 			return err
 		}
 	}
-	dw.Metrics.IncrementHeadTrackingInserts(1)
+	dw.Metrics.IncrementSlotInserts(1)
 	return nil
 }
 
-// Write the information for the generic slots table. For now this is only one function.
+// Add data for the eth_beacon.slots table to a transaction. For now this is only one function.
 // But in the future if we need to incorporate any FK's or perform any actions to write to the
 // slots table we can do it all here.
-func (dw *DatabaseWriter) writeSlots() error {
+func (dw *DatabaseWriter) transactSlots() error {
 	return dw.upsertSlots()
 }
 
-// Upsert to the ethcl.slots table.
+// Upsert to the eth_beacon.slots table.
 func (dw *DatabaseWriter) upsertSlots() error {
-	_, err := dw.Db.Exec(context.Background(), UpsertSlotsStmt, dw.DbSlots.Epoch, dw.DbSlots.Slot, dw.DbSlots.BlockRoot, dw.DbSlots.StateRoot, dw.DbSlots.Status)
+	_, err := dw.Tx.Exec(dw.Ctx, UpsertSlotsStmt, dw.DbSlots.Epoch, dw.DbSlots.Slot, dw.DbSlots.BlockRoot, dw.DbSlots.StateRoot, dw.DbSlots.Status)
 	if err != nil {
-		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("Unable to write to the slot to the ethcl.slots table")
+		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("Unable to write to the slot to the eth_beacon.slots table")
 		return err
 	}
 	return nil
 }
 
-// Write the information for the signed_beacon_block.
+// Add the information for the signed_block to a transaction.
-func (dw *DatabaseWriter) writeSignedBeaconBlocks() error {
+func (dw *DatabaseWriter) transactSignedBeaconBlocks() error {
 	err := dw.upsertPublicBlocks(dw.DbSignedBeaconBlock.MhKey, dw.rawSignedBeaconBlock)
 	if err != nil {
 		return err
@@ -196,7 +241,7 @@ func (dw *DatabaseWriter) writeSignedBeaconBlocks() error {
 
 // Upsert to public.blocks.
 func (dw *DatabaseWriter) upsertPublicBlocks(key string, data []byte) error {
-	_, err := dw.Db.Exec(context.Background(), UpsertBlocksStmt, key, data)
+	_, err := dw.Tx.Exec(dw.Ctx, UpsertBlocksStmt, key, data)
 	if err != nil {
 		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("Unable to write to the slot to the public.blocks table")
 		return err
@@ -204,18 +249,18 @@ func (dw *DatabaseWriter) upsertPublicBlocks(key string, data []byte) error {
 	return nil
 }
 
-// Upsert to the ethcl.signed_beacon_block table.
+// Upsert to the eth_beacon.signed_block table.
 func (dw *DatabaseWriter) upsertSignedBeaconBlock() error {
-	_, err := dw.Db.Exec(context.Background(), UpsertSignedBeaconBlockStmt, dw.DbSignedBeaconBlock.Slot, dw.DbSignedBeaconBlock.BlockRoot, dw.DbSignedBeaconBlock.ParentBlock, dw.DbSignedBeaconBlock.Eth1BlockHash, dw.DbSignedBeaconBlock.MhKey)
+	_, err := dw.Tx.Exec(dw.Ctx, UpsertSignedBeaconBlockStmt, dw.DbSignedBeaconBlock.Slot, dw.DbSignedBeaconBlock.BlockRoot, dw.DbSignedBeaconBlock.ParentBlock, dw.DbSignedBeaconBlock.Eth1BlockHash, dw.DbSignedBeaconBlock.MhKey)
 	if err != nil {
-		loghelper.LogSlotError(dw.DbSlots.Slot, err).WithFields(log.Fields{"block_root": dw.DbSignedBeaconBlock.BlockRoot}).Error("Unable to write to the slot to the ethcl.signed_beacon_block table")
+		loghelper.LogSlotError(dw.DbSlots.Slot, err).WithFields(log.Fields{"block_root": dw.DbSignedBeaconBlock.BlockRoot}).Error("Unable to write to the slot to the eth_beacon.signed_block table")
 		return err
 	}
 	return nil
 }
 
-// Write the information for the beacon_state.
+// Add the information for the state to a transaction.
-func (dw *DatabaseWriter) writeBeaconState() error {
+func (dw *DatabaseWriter) transactBeaconState() error {
 	err := dw.upsertPublicBlocks(dw.DbBeaconState.MhKey, dw.rawBeaconState)
 	if err != nil {
 		return err
@@ -227,33 +272,33 @@ func (dw *DatabaseWriter) writeBeaconState() error {
 	return nil
 }
 
-// Upsert to the ethcl.beacon_state table.
+// Upsert to the eth_beacon.state table.
 func (dw *DatabaseWriter) upsertBeaconState() error {
-	_, err := dw.Db.Exec(context.Background(), UpsertBeaconState, dw.DbBeaconState.Slot, dw.DbBeaconState.StateRoot, dw.DbBeaconState.MhKey)
+	_, err := dw.Tx.Exec(dw.Ctx, UpsertBeaconState, dw.DbBeaconState.Slot, dw.DbBeaconState.StateRoot, dw.DbBeaconState.MhKey)
 	if err != nil {
-		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("Unable to write to the slot to the ethcl.beacon_state table")
+		loghelper.LogSlotError(dw.DbSlots.Slot, err).Error("Unable to write to the slot to the eth_beacon.state table")
 		return err
 	}
 	return nil
 }
 
-// Update a given slot to be marked as forked. Provide the slot and the latest latestBlockRoot.
+// Update a given slot to be marked as forked within a transaction. Provide the slot and the latest latestBlockRoot.
 // We will mark all entries for the given slot that don't match the provided latestBlockRoot as forked.
-func writeReorgs(db sql.Database, slot string, latestBlockRoot string, metrics *BeaconClientMetrics) {
+func transactReorgs(tx sql.Tx, ctx context.Context, slot string, latestBlockRoot string, metrics *BeaconClientMetrics) {
 	slotNum, strErr := strconv.Atoi(slot)
 	if strErr != nil {
 		loghelper.LogReorgError(slot, latestBlockRoot, strErr).Error("We can't convert the slot to an int...")
 	}
 
-	forkCount, err := updateForked(db, slot, latestBlockRoot)
+	forkCount, err := updateForked(tx, ctx, slot, latestBlockRoot)
 	if err != nil {
 		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We ran into some trouble while updating all forks.")
-		writeKnownGaps(db, 1, slotNum, slotNum, err, "reorg", metrics)
+		transactKnownGaps(tx, ctx, 1, slotNum, slotNum, err, "reorg", metrics)
 	}
-	proposedCount, err := updateProposed(db, slot, latestBlockRoot)
+	proposedCount, err := updateProposed(tx, ctx, slot, latestBlockRoot)
 	if err != nil {
 		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We ran into some trouble while trying to update the proposed slot.")
-		writeKnownGaps(db, 1, slotNum, slotNum, err, "reorg", metrics)
+		transactKnownGaps(tx, ctx, 1, slotNum, slotNum, err, "reorg", metrics)
 	}
 
 	if forkCount > 0 {
@@ -274,31 +319,39 @@ func writeReorgs(db sql.Database, slot string, latestBlockRoot string, metrics *
 		loghelper.LogReorg(slot, latestBlockRoot).WithFields(log.Fields{
 			"proposedCount": proposedCount,
 		}).Error("Too many rows were marked as proposed!")
-		writeKnownGaps(db, 1, slotNum, slotNum, err, "reorg", metrics)
+		transactKnownGaps(tx, ctx, 1, slotNum, slotNum, fmt.Errorf("Too many rows were marked as unproposed."), "reorg", metrics)
 	} else if proposedCount == 0 {
-		var count int
+		transactKnownGaps(tx, ctx, 1, slotNum, slotNum, fmt.Errorf("Unable to find properly proposed row in DB"), "reorg", metrics)
-		err := db.QueryRow(context.Background(), CheckProposedStmt, slot, latestBlockRoot).Scan(count)
-		if err != nil {
-			loghelper.LogReorgError(slot, latestBlockRoot, err).Error("Unable to query proposed rows after reorg.")
-			writeKnownGaps(db, 1, slotNum, slotNum, err, "reorg", metrics)
-		} else if count != 1 {
-			loghelper.LogReorg(slot, latestBlockRoot).WithFields(log.Fields{
-				"proposedCount": count,
-			}).Warn("The proposed block was not marked as proposed...")
-			writeKnownGaps(db, 1, slotNum, slotNum, err, "reorg", metrics)
-		} else {
 		loghelper.LogReorg(slot, latestBlockRoot).Info("Updated the row that should have been marked as proposed.")
 	}
-	}
 
-	metrics.IncrementHeadTrackingReorgs(1)
+	metrics.IncrementReorgsInsert(1)
+}
+
+// Wrapper function that will create a transaction and execute the function.
+func writeReorgs(db sql.Database, slot string, latestBlockRoot string, metrics *BeaconClientMetrics) {
+	ctx := context.Background()
+	tx, err := db.Begin(ctx)
+	if err != nil {
+		loghelper.LogReorgError(slot, latestBlockRoot, err).Fatal("Unable to create a new transaction for reorgs")
+	}
+	defer func() {
+		err := tx.Rollback(ctx)
+		if err != nil && err != pgx.ErrTxClosed {
+			loghelper.LogError(err).Error("We were unable to Rollback a transaction for reorgs")
+		}
+	}()
+	transactReorgs(tx, ctx, slot, latestBlockRoot, metrics)
+	if err = tx.Commit(ctx); err != nil {
+		loghelper.LogReorgError(slot, latestBlockRoot, err).Fatal("Unable to execute the transaction for reorgs")
+	}
 }
 
 // Update the slots table by marking the old slot's as forked.
-func updateForked(db sql.Database, slot string, latestBlockRoot string) (int64, error) {
+func updateForked(tx sql.Tx, ctx context.Context, slot string, latestBlockRoot string) (int64, error) {
-	res, err := db.Exec(context.Background(), UpdateForkedStmt, slot, latestBlockRoot)
+	res, err := tx.Exec(ctx, UpdateForkedStmt, slot, latestBlockRoot)
 	if err != nil {
-		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We are unable to update the ethcl.slots table with the forked slots")
+		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We are unable to update the eth_beacon.slots table with the forked slots")
 		return 0, err
 	}
 	count, err := res.RowsAffected()
@@ -309,10 +362,11 @@ func updateForked(db sql.Database, slot string, latestBlockRoot string) (int64,
 	return count, err
 }
 
-func updateProposed(db sql.Database, slot string, latestBlockRoot string) (int64, error) {
+// Mark a slot as proposed.
-	res, err := db.Exec(context.Background(), UpdateProposedStmt, slot, latestBlockRoot)
+func updateProposed(tx sql.Tx, ctx context.Context, slot string, latestBlockRoot string) (int64, error) {
+	res, err := tx.Exec(ctx, UpdateProposedStmt, slot, latestBlockRoot)
 	if err != nil {
-		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We are unable to update the ethcl.slots table with the proposed slot.")
+		loghelper.LogReorgError(slot, latestBlockRoot, err).Error("We are unable to update the eth_beacon.slots table with the proposed slot.")
 		return 0, err
 	}
 	count, err := res.RowsAffected()
@@ -324,20 +378,26 @@ func updateProposed(db sql.Database, slot string, latestBlockRoot string) (int64
 	return count, err
 }
 
-// A wrapper function to call upsertKnownGaps. This function will break down the range of known_gaos into
+// A wrapper function to call upsertKnownGaps. This function will break down the range of known_gaps into
 // smaller chunks. For example, instead of having an entry of 1-101, if we increment the entries by 10 slots, we would
 // have 10 entries as follows: 1-10, 11-20, etc...
-func writeKnownGaps(db sql.Database, tableIncrement int, startSlot int, endSlot int, entryError error, entryProcess string, metric *BeaconClientMetrics) {
+func transactKnownGaps(tx sql.Tx, ctx context.Context, tableIncrement int, startSlot int, endSlot int, entryError error, entryProcess string, metric *BeaconClientMetrics) {
+	var entryErrorMsg string
+	if entryError == nil {
+		entryErrorMsg = ""
+	} else {
+		entryErrorMsg = entryError.Error()
+	}
 	if endSlot-startSlot <= tableIncrement {
 		kgModel := DbKnownGaps{
 			StartSlot:         strconv.Itoa(startSlot),
 			EndSlot:           strconv.Itoa(endSlot),
 			CheckedOut:        false,
 			ReprocessingError: "",
-			EntryError:        entryError.Error(),
+			EntryError:        entryErrorMsg,
 			EntryProcess:      entryProcess,
 		}
-		upsertKnownGaps(db, kgModel, metric)
+		upsertKnownGaps(tx, ctx, kgModel, metric)
 	} else {
 		totalSlots := endSlot - startSlot
 		var chunks int
@@ -359,31 +419,50 @@ func writeKnownGaps(db sql.Database, tableIncrement int, startSlot int, endSlot
 				EndSlot:           strconv.Itoa(tempEnd),
 				CheckedOut:        false,
 				ReprocessingError: "",
-				EntryError:        entryError.Error(),
+				EntryError:        entryErrorMsg,
 				EntryProcess:      entryProcess,
 			}
-			upsertKnownGaps(db, kgModel, metric)
+			upsertKnownGaps(tx, ctx, kgModel, metric)
 		}
 	}
-
 }
 
-// A function to upsert a single entry to the ethcl.known_gaps table.
+// Wrapper function, instead of adding the knownGaps entries to a transaction, it will
-func upsertKnownGaps(db sql.Database, knModel DbKnownGaps, metric *BeaconClientMetrics) {
+// create the transaction and write it.
-	_, err := db.Exec(context.Background(), UpsertKnownGapsStmt, knModel.StartSlot, knModel.EndSlot,
+func writeKnownGaps(db sql.Database, tableIncrement int, startSlot int, endSlot int, entryError error, entryProcess string, metric *BeaconClientMetrics) {
+	ctx := context.Background()
+	tx, err := db.Begin(ctx)
+	if err != nil {
+		loghelper.LogSlotRangeError(strconv.Itoa(startSlot), strconv.Itoa(endSlot), err).Fatal("Unable to create a new transaction for knownGaps")
+	}
+	defer func() {
+		err := tx.Rollback(ctx)
+		if err != nil && err != pgx.ErrTxClosed {
+			loghelper.LogError(err).Error("We were unable to Rollback a transaction for reorgs")
+		}
+	}()
+	transactKnownGaps(tx, ctx, tableIncrement, startSlot, endSlot, entryError, entryProcess, metric)
+	if err = tx.Commit(ctx); err != nil {
+		loghelper.LogSlotRangeError(strconv.Itoa(startSlot), strconv.Itoa(endSlot), err).Fatal("Unable to execute the transaction for knownGaps")
+	}
+}
+
+// A function to upsert a single entry to the eth_beacon.known_gaps table.
+func upsertKnownGaps(tx sql.Tx, ctx context.Context, knModel DbKnownGaps, metric *BeaconClientMetrics) {
+	_, err := tx.Exec(ctx, UpsertKnownGapsStmt, knModel.StartSlot, knModel.EndSlot,
 		knModel.CheckedOut, knModel.ReprocessingError, knModel.EntryError, knModel.EntryProcess)
 	if err != nil {
 		log.WithFields(log.Fields{
 			"err":       err,
 			"startSlot": knModel.StartSlot,
 			"endSlot":   knModel.EndSlot,
-		}).Fatal("We are unable to write to the ethcl.known_gaps table!!! We will stop the application because of that.")
+		}).Fatal("We are unable to write to the eth_beacon.known_gaps table!!! We will stop the application because of that.")
 	}
 	log.WithFields(log.Fields{
 		"startSlot": knModel.StartSlot,
 		"endSlot":   knModel.EndSlot,
-	}).Warn("A new gap has been added to the ethcl.known_gaps table.")
+	}).Warn("A new gap has been added to the eth_beacon.known_gaps table.")
-	metric.IncrementHeadTrackingKnownGaps(1)
+	metric.IncrementKnownGapsInserts(1)
 }
 
 // A function to write the gap between the highest slot in the DB and the first processed slot.
@@ -400,8 +479,42 @@ func writeStartUpGaps(db sql.Database, tableIncrement int, firstSlot int, metric
 		}).Fatal("Unable to get convert max block from DB to int. We must close the application or we might have undetected gaps.")
 	}
 	if maxSlot != firstSlot-1 {
+		if maxSlot < firstSlot-1 {
+			if maxSlot == 0 {
+				writeKnownGaps(db, tableIncrement, maxSlot, firstSlot-1, fmt.Errorf(""), "startup", metric)
+			} else {
 				writeKnownGaps(db, tableIncrement, maxSlot+1, firstSlot-1, fmt.Errorf(""), "startup", metric)
 			}
+		} else {
+			log.WithFields(log.Fields{
+				"maxSlot":   maxSlot,
+				"firstSlot": firstSlot,
+			}).Warn("The maxSlot in the DB is greater than or equal to the first Slot we are processing.")
+		}
+	}
+}
+
+// A function to update a knownGap range with a reprocessing error.
+func updateKnownGapErrors(db sql.Database, startSlot int, endSlot int, reprocessingErr error, metric *BeaconClientMetrics) error {
+	res, err := db.Exec(context.Background(), UpsertKnownGapsErrorStmt, startSlot, endSlot, reprocessingErr.Error())
+	if err != nil {
+		loghelper.LogSlotRangeError(strconv.Itoa(startSlot), strconv.Itoa(endSlot), err).Error("Unable to update reprocessing_error")
+		return err
+	}
+	row, err := res.RowsAffected()
+	if err != nil {
+		loghelper.LogSlotRangeError(strconv.Itoa(startSlot), strconv.Itoa(endSlot), err).Error("Unable to count rows affected when trying to update reprocessing_error.")
+		return err
+	}
+	if row != 1 {
+		loghelper.LogSlotRangeError(strconv.Itoa(startSlot), strconv.Itoa(endSlot), err).WithFields(log.Fields{
+			"rowCount": row,
+		}).Error("The rows affected by the upsert for reprocessing_error is not 1.")
+		metric.IncrementKnownGapsReprocessError(1)
+		return err
+	}
+	metric.IncrementKnownGapsReprocessError(1)
+	return nil
 }
 
 // A quick helper function to calculate the epoch.
@@ -409,3 +522,78 @@ func calculateEpoch(slot int, slotPerEpoch int) string {
 	epoch := slot / slotPerEpoch
 	return strconv.Itoa(epoch)
 }
+
+// A helper function to check to see if the slot is processed.
+func isSlotProcessed(db sql.Database, checkProcessStmt string, slot string) (bool, error) {
+	processRow, err := db.Exec(context.Background(), checkProcessStmt, slot)
+	if err != nil {
+		return false, err
+	}
+	row, err := processRow.RowsAffected()
+	if err != nil {
+		return false, err
+	}
+	if row > 0 {
+		return true, nil
+	}
+	return false, nil
+}
+
+// Check to see if this slot is in the DB. Check eth_beacon.slots, eth_beacon.signed_block
+// and eth_beacon.state. If the slot exists, return true
+func IsSlotInDb(ctx context.Context, db sql.Database, slot string, blockRoot string, stateRoot string) (bool, error) {
+	var (
+		isInBeaconState       bool
+		isInSignedBeaconBlock bool
+		err                   error
+	)
+	errG, _ := errgroup.WithContext(context.Background())
+	errG.Go(func() error {
+		select {
+		case <-ctx.Done():
+			return nil
+		default:
+			isInBeaconState, err = checkSlotAndRoot(db, CheckBeaconStateStmt, slot, stateRoot)
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to check if the slot and stateroot exist in eth_beacon.state")
+			}
+			return err
+		}
+	})
+	errG.Go(func() error {
+		select {
+		case <-ctx.Done():
+			return nil
+		default:
+			isInSignedBeaconBlock, err = checkSlotAndRoot(db, CheckSignedBeaconBlockStmt, slot, blockRoot)
+			if err != nil {
+				loghelper.LogError(err).Error("Unable to check if the slot and block_root exist in eth_beacon.signed_block")
+			}
+			return err
+		}
+	})
+	if err := errG.Wait(); err != nil {
+		return false, err
+	}
+	if isInBeaconState && isInSignedBeaconBlock {
+		return true, nil
+	}
+	return false, nil
+}
+
+// Provide a statement, slot, and root, and this function will check to see
+// if the slot and root exist in the table.
+func checkSlotAndRoot(db sql.Database, statement, slot, root string) (bool, error) {
+	processRow, err := db.Exec(context.Background(), statement, slot, root)
+	if err != nil {
+		return false, err
+	}
+	row, err := processRow.RowsAffected()
+	if err != nil {
+		return false, err
+	}
+	if row > 0 {
+		return true, nil
+	}
+	return false, nil
+}

pkg/beaconclient/healthcheck.go

@@ -20,7 +20,7 @@ import (
 	"net/http"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // This function will ensure that we can connect to the beacon client.

pkg/beaconclient/healthcheck_test.go

@@ -20,18 +20,27 @@ import (
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-	beaconclient "github.com/vulcanize/ipld-ethcl-indexer/pkg/beaconclient"
+	beaconclient "github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
 )
 
 var _ = Describe("Healthcheck", func() {
 	var (
-		BC    = beaconclient.CreateBeaconClient(context.Background(), "http", "localhost", 5052)
+		Bc    *beaconclient.BeaconClient
-		errBc = beaconclient.CreateBeaconClient(context.Background(), "http", "blah-blah", 1010)
+		errBc *beaconclient.BeaconClient
 	)
+
+	BeforeEach(func() {
+		var err error
+		Bc, err = beaconclient.CreateBeaconClient(context.Background(), "http", "localhost", 5052, 10, bcUniqueIdentifier, false)
+		Expect(err).ToNot(HaveOccurred())
+		errBc, err = beaconclient.CreateBeaconClient(context.Background(), "http", "blah-blah", 1010, 10, bcUniqueIdentifier, false)
+		Expect(err).ToNot(HaveOccurred())
+
+	})
 	Describe("Connecting to the lighthouse client", Label("integration"), func() {
 		Context("When the client is running", func() {
 			It("We should connect successfully", func() {
-				err := BC.CheckBeaconClient()
+				err := Bc.CheckBeaconClient()
 				Expect(err).To(BeNil())
 			})
 		})

pkg/beaconclient/incomingsse.go

@@ -22,7 +22,7 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 	"golang.org/x/sync/errgroup"
 )
 
@@ -94,5 +94,5 @@ func processMsg[P ProcessedEvents](msg []byte, processCh chan<- *P, errorCh chan
 func (bc *BeaconClient) captureEventTopic() {
 	log.Info("We are capturing all SSE events")
 	go handleIncomingSseEvent(bc.HeadTracking, bc.Metrics.IncrementHeadError)
-	go handleIncomingSseEvent(bc.ReOrgTracking, bc.Metrics.IncrementHeadReorgError)
+	go handleIncomingSseEvent(bc.ReOrgTracking, bc.Metrics.IncrementReorgError)
 }

pkg/beaconclient/metrics.go

@@ -17,24 +17,107 @@ package beaconclient
 
 import (
 	"sync/atomic"
+
+	"github.com/prometheus/client_golang/prometheus"
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
+//Create a metric struct and register each channel with prometheus
+func CreateBeaconClientMetrics() (*BeaconClientMetrics, error) {
+	metrics := &BeaconClientMetrics{
+		SlotInserts:             0,
+		ReorgInserts:            0,
+		KnownGapsInserts:        0,
+		KnownGapsProcessed:      0,
+		KnownGapsReprocessError: 0,
+		HeadError:               0,
+		HeadReorgError:          0,
+	}
+	err := prometheusRegisterHelper("slot_inserts", "Keeps track of the number of slots we have inserted.", &metrics.SlotInserts)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("reorg_inserts", "Keeps track of the number of reorgs we have inserted.", &metrics.ReorgInserts)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("known_gaps_inserts", "Keeps track of the number of known gaps we have inserted.", &metrics.KnownGapsInserts)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("known_gaps_reprocess_error", "Keeps track of the number of known gaps that had errors when reprocessing, but the error was updated successfully.", &metrics.KnownGapsReprocessError)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("known_gaps_processed", "Keeps track of the number of known gaps we successfully processed.", &metrics.KnownGapsProcessed)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("head_error", "Keeps track of the number of errors we had processing head messages.", &metrics.HeadError)
+	if err != nil {
+		return nil, err
+	}
+	err = prometheusRegisterHelper("head_reorg_error", "Keeps track of the number of errors we had processing reorg messages.", &metrics.HeadReorgError)
+	if err != nil {
+		return nil, err
+	}
+	return metrics, nil
+}
+
+func prometheusRegisterHelper(name string, help string, varPointer *uint64) error {
+	err := prometheus.Register(prometheus.NewCounterFunc(
+		prometheus.CounterOpts{
+			Namespace:   "beacon_client",
+			Subsystem:   "",
+			Name:        name,
+			Help:        help,
+			ConstLabels: map[string]string{},
+		},
+		func() float64 {
+			return float64(atomic.LoadUint64(varPointer))
+		}))
+	if err != nil && err.Error() != "duplicate metrics collector registration attempted" {
+		loghelper.LogError(err).WithField("name", name).Error("Unable to register counter.")
+		return err
+	}
+	return nil
+}
+
+// A structure utilized for keeping track of various metrics. Currently, mostly used in testing.
+type BeaconClientMetrics struct {
+	SlotInserts             uint64 // Number of head events we successfully wrote to the DB.
+	ReorgInserts            uint64 // Number of reorg events we successfully wrote to the DB.
+	KnownGapsInserts        uint64 // Number of known_gaps we successfully wrote to the DB.
+	KnownGapsProcessed      uint64 // Number of knownGaps processed.
+	KnownGapsReprocessError uint64 // Number of knownGaps that were updated with an error.
+	HeadError               uint64 // Number of errors that occurred when decoding the head message.
+	HeadReorgError          uint64 // Number of errors that occurred when decoding the reorg message.
+}
+
 // Wrapper function to increment inserts. If we want to use mutexes later we can easily update all
 // occurrences here.
-func (m *BeaconClientMetrics) IncrementHeadTrackingInserts(inc uint64) {
+func (m *BeaconClientMetrics) IncrementSlotInserts(inc uint64) {
-	atomic.AddUint64(&m.HeadTrackingInserts, inc)
+	log.Debug("Incrementing Slot Insert")
+	atomic.AddUint64(&m.SlotInserts, inc)
 }
 
 // Wrapper function to increment reorgs. If we want to use mutexes later we can easily update all
 // occurrences here.
-func (m *BeaconClientMetrics) IncrementHeadTrackingReorgs(inc uint64) {
+func (m *BeaconClientMetrics) IncrementReorgsInsert(inc uint64) {
-	atomic.AddUint64(&m.HeadTrackingReorgs, inc)
+	atomic.AddUint64(&m.ReorgInserts, inc)
 }
 
 // Wrapper function to increment known gaps. If we want to use mutexes later we can easily update all
 // occurrences here.
-func (m *BeaconClientMetrics) IncrementHeadTrackingKnownGaps(inc uint64) {
+func (m *BeaconClientMetrics) IncrementKnownGapsInserts(inc uint64) {
-	atomic.AddUint64(&m.HeadTrackingKnownGaps, inc)
+	atomic.AddUint64(&m.KnownGapsInserts, inc)
+}
+
+// Wrapper function to increment known gaps processed. If we want to use mutexes later we can easily update all
+// occurrences here.
+func (m *BeaconClientMetrics) IncrementKnownGapsProcessed(inc uint64) {
+	atomic.AddUint64(&m.KnownGapsProcessed, inc)
 }
 
 // Wrapper function to increment head errors. If we want to use mutexes later we can easily update all
@@ -45,6 +128,13 @@ func (m *BeaconClientMetrics) IncrementHeadError(inc uint64) {
 
 // Wrapper function to increment reorg errors. If we want to use mutexes later we can easily update all
 // occurrences here.
-func (m *BeaconClientMetrics) IncrementHeadReorgError(inc uint64) {
+func (m *BeaconClientMetrics) IncrementReorgError(inc uint64) {
 	atomic.AddUint64(&m.HeadReorgError, inc)
 }
+
+// Wrapper function to increment the number of knownGaps that were updated with reprocessing errors.
+//If we want to use mutexes later we can easily update all occurrences here.
+func (m *BeaconClientMetrics) IncrementKnownGapsReprocessError(inc uint64) {
+	log.Debug("Incrementing Known Gap Reprocessing: ", &m.KnownGapsReprocessError)
+	atomic.AddUint64(&m.KnownGapsReprocessError, inc)
+}

pkg/beaconclient/models.go

@@ -51,7 +51,7 @@ type ChainReorg struct {
 	ExecutionOptimistic bool   `json:"execution_optimistic"`
 }
 
-// A struct to capture whats being written to the ethcl.slots table.
+// A struct to capture whats being written to the eth-beacon.slots table.
 type DbSlots struct {
 	Epoch     string // The epoch.
 	Slot      string // The slot.
@@ -60,7 +60,7 @@ type DbSlots struct {
 	Status    string // The status, it can be proposed | forked | skipped.
 }
 
-// A struct to capture whats being written to ethcl.signed_beacon_block table.
+// A struct to capture whats being written to eth-beacon.signed_block table.
 type DbSignedBeaconBlock struct {
 	Slot          string // The slot.
 	BlockRoot     string // The block root
@@ -70,14 +70,14 @@ type DbSignedBeaconBlock struct {
 
 }
 
-// A struct to capture whats being written to ethcl.beacon_state table.
+// A struct to capture whats being written to eth-beacon.state table.
 type DbBeaconState struct {
 	Slot      string // The slot.
 	StateRoot string // The state root
 	MhKey     string // The ipld multihash key.
 }
 
-// A structure to capture whats being written to the ethcl.known_gaps table.
+// A structure to capture whats being written to the eth-beacon.known_gaps table.
 type DbKnownGaps struct {
 	StartSlot         string // The start slot for known_gaps, inclusive.
 	EndSlot           string // The end slot for known_gaps, inclusive.

pkg/beaconclient/multihash.go

@@ -20,10 +20,10 @@ import (
 	dshelp "github.com/ipfs/go-ipfs-ds-help"
 	"github.com/multiformats/go-multihash"
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
-const SSZ_SHA2_256_PREFIX uint64 = 0xb501
+const SSZ_SHA2_256_PREFIX uint64 = 0xb502
 
 // MultihashKeyFromSSZRoot converts a SSZ-SHA2-256 root hash into a blockstore prefixed multihash key
 func MultihashKeyFromSSZRoot(root []byte) (string, error) {

pkg/beaconclient/processevents.go

@@ -23,9 +23,6 @@ import (
 	"strconv"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
-	"golang.org/x/sync/errgroup"
 )
 
 // This function will perform the necessary steps to handle a reorg.
@@ -56,26 +53,20 @@ func (bc *BeaconClient) handleHead() {
 		if errorSlots != 0 && bc.PreviousSlot != 0 {
 			log.WithFields(log.Fields{
 				"lastProcessedSlot": bc.PreviousSlot,
-				"errorMessages":     errorSlots,
+				"errorSlots":        errorSlots,
 			}).Warn("We added slots to the knownGaps table because we got bad head messages.")
-			writeKnownGaps(bc.Db, bc.KnownGapTableIncrement, bc.PreviousSlot, bcSlotsPerEpoch+errorSlots, fmt.Errorf("Bad Head Messages"), "headProcessing", bc.Metrics)
+			writeKnownGaps(bc.Db, bc.KnownGapTableIncrement, bc.PreviousSlot+1, slot, fmt.Errorf("Bad Head Messages"), "headProcessing", bc.Metrics)
+			errorSlots = 0
 		}
 
 		log.WithFields(log.Fields{"head": head}).Debug("We are going to start processing the slot.")
 
-		go func(db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, metrics *BeaconClientMetrics, knownGapsTableIncrement int) {
+		// Not used anywhere yet but might be useful to have.
-			errG := new(errgroup.Group)
+		if bc.PreviousSlot == 0 && bc.PreviousBlockRoot == "" {
-			errG.Go(func() error {
+			bc.StartingSlot = slot
-				err = processHeadSlot(db, serverAddress, slot, blockRoot, stateRoot, previousSlot, previousBlockRoot, metrics, knownGapsTableIncrement)
-				if err != nil {
-					return err
 		}
-				return nil
+
-			})
+		go processHeadSlot(bc.Db, bc.ServerEndpoint, slot, head.Block, head.State, bc.PreviousSlot, bc.PreviousBlockRoot, bc.Metrics, bc.KnownGapTableIncrement, bc.CheckDb)
-			if err := errG.Wait(); err != nil {
-				loghelper.LogSlotError(strconv.Itoa(slot), err).Error("Unable to process a slot")
-			}
-		}(bc.Db, bc.ServerEndpoint, slot, head.Block, head.State, bc.PreviousSlot, bc.PreviousBlockRoot, bc.Metrics, bc.KnownGapTableIncrement)
 
 		log.WithFields(log.Fields{"head": head.Slot}).Debug("We finished calling processHeadSlot.")
 
@@ -83,5 +74,4 @@ func (bc *BeaconClient) handleHead() {
 		bc.PreviousSlot = slot
 		bc.PreviousBlockRoot = head.Block
 	}
-
 }

pkg/beaconclient/processhistoric.go

@@ -0,0 +1,266 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// This file contains all the code to process historic slots.
+
+package beaconclient
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+
+	"github.com/jackc/pgx/v4"
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+)
+
+var (
+	// Get a single highest priority and non-checked out row row from eth_beacon.historical_process
+	getHpEntryStmt string = `SELECT start_slot, end_slot FROM eth_beacon.historic_process
+	WHERE checked_out=false
+	ORDER BY priority ASC
+	LIMIT 1;`
+	// Used to periodically check to see if there is a new entry in the eth_beacon.historic_process table.
+	checkHpEntryStmt string = `SELECT * FROM eth_beacon.historic_process WHERE checked_out=false;`
+	// Used to checkout a row from the eth_beacon.historic_process table
+	lockHpEntryStmt string = `UPDATE eth_beacon.historic_process
+	SET checked_out=true, checked_out_by=$3
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Used to delete an entry from the eth_beacon.historic_process table
+	deleteHpEntryStmt string = `DELETE FROM eth_beacon.historic_process
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Used to update every single row that this node has checked out.
+	releaseHpLockStmt string = `UPDATE eth_beacon.historic_process
+	SET checked_out=false, checked_out_by=null
+	WHERE checked_out_by=$1`
+)
+
+type HistoricProcessing struct {
+	db                   sql.Database         //db connection
+	metrics              *BeaconClientMetrics // metrics for beaconclient
+	uniqueNodeIdentifier int                  // node unique identifier.
+}
+
+// Get a single row of historical slots from the table.
+func (hp HistoricProcessing) getSlotRange(ctx context.Context, slotCh chan<- slotsToProcess) []error {
+	return getBatchProcessRow(ctx, hp.db, getHpEntryStmt, checkHpEntryStmt, lockHpEntryStmt, slotCh, strconv.Itoa(hp.uniqueNodeIdentifier))
+}
+
+// Remove the table entry.
+func (hp HistoricProcessing) removeTableEntry(ctx context.Context, processCh <-chan slotsToProcess) error {
+	return removeRowPostProcess(ctx, hp.db, processCh, QueryBySlotStmt, deleteHpEntryStmt)
+}
+
+// Remove the table entry.
+func (hp HistoricProcessing) handleProcessingErrors(ctx context.Context, errMessages <-chan batchHistoricError) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case errMs := <-errMessages:
+			loghelper.LogSlotError(strconv.Itoa(errMs.slot), errMs.err)
+			writeKnownGaps(hp.db, 1, errMs.slot, errMs.slot, errMs.err, errMs.errProcess, hp.metrics)
+		}
+	}
+}
+
+// "un"-checkout the rows held by this DB in the eth_beacon.historical_process table.
+func (hp HistoricProcessing) releaseDbLocks(cancel context.CancelFunc) error {
+	cancel()
+	log.Debug("Updating all the entries to eth_beacon.historical processing")
+	log.Debug("Db: ", hp.db)
+	log.Debug("hp.uniqueNodeIdentifier ", hp.uniqueNodeIdentifier)
+	res, err := hp.db.Exec(context.Background(), releaseHpLockStmt, hp.uniqueNodeIdentifier)
+	if err != nil {
+		return fmt.Errorf("Unable to remove lock from eth_beacon.historical_processing table for node %d, error is %e", hp.uniqueNodeIdentifier, err)
+	}
+	log.Debug("Update all the entries to eth_beacon.historical processing")
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("Unable to calculated number of rows affected by releasing locks from eth_beacon.historical_processing table for node %d, error is %e", hp.uniqueNodeIdentifier, err)
+	}
+	log.WithField("rowCount", rows).Info("Released historicalProcess locks for specified rows.")
+	return nil
+}
+
+// Process the slot range.
+func processSlotRangeWorker(ctx context.Context, workCh <-chan int, errCh chan<- batchHistoricError, db sql.Database, serverAddress string, metrics *BeaconClientMetrics, checkDb bool) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case slot := <-workCh:
+			log.Debug("Handling slot: ", slot)
+			err, errProcess := handleHistoricSlot(ctx, db, serverAddress, slot, metrics, checkDb)
+			if err != nil {
+				errMs := batchHistoricError{
+					err:        err,
+					errProcess: errProcess,
+					slot:       slot,
+				}
+				errCh <- errMs
+			}
+		}
+	}
+}
+
+// A wrapper function that insert the start_slot and end_slot from a single row into a channel.
+// It also locks the row by updating the checked_out column.
+// The statement for getting the start_slot and end_slot must be provided.
+// The statement for "locking" the row must also be provided.
+func getBatchProcessRow(ctx context.Context, db sql.Database, getStartEndSlotStmt string, checkNewRowsStmt string, checkOutRowStmt string, slotCh chan<- slotsToProcess, uniqueNodeIdentifier string) []error {
+	errCount := make([]error, 0)
+
+	// 5 is an arbitrary number. It allows us to retry a few times before
+	// ending the application.
+	prevErrCount := 0
+	for len(errCount) < 5 {
+		select {
+		case <-ctx.Done():
+			return errCount
+		default:
+			if len(errCount) != prevErrCount {
+				log.WithFields(log.Fields{
+					"errCount": errCount,
+				}).Error("New error entry added")
+			}
+			processRow, err := db.Exec(context.Background(), checkNewRowsStmt)
+			if err != nil {
+				errCount = append(errCount, err)
+			}
+			row, err := processRow.RowsAffected()
+			if err != nil {
+				errCount = append(errCount, err)
+			}
+			if row < 1 {
+				time.Sleep(1000 * time.Millisecond)
+				log.Debug("We are checking rows, be patient")
+				break
+			}
+			log.Debug("We found a new row")
+			dbCtx := context.Background()
+
+			// Setup TX
+			tx, err := db.Begin(dbCtx)
+			if err != nil {
+				loghelper.LogError(err).Error("We are unable to Begin a SQL transaction")
+				errCount = append(errCount, err)
+				break
+			}
+			defer func() {
+				err := tx.Rollback(dbCtx)
+				if err != nil && err != pgx.ErrTxClosed {
+					loghelper.LogError(err).Error("We were unable to Rollback a transaction")
+					errCount = append(errCount, err)
+				}
+			}()
+
+			// Query the DB for slots.
+			sp := slotsToProcess{}
+			err = tx.QueryRow(dbCtx, getStartEndSlotStmt).Scan(&sp.startSlot, &sp.endSlot)
+			if err != nil {
+				if err == pgx.ErrNoRows {
+					time.Sleep(100 * time.Millisecond)
+					break
+				}
+				loghelper.LogSlotRangeStatementError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), getStartEndSlotStmt, err).Error("Unable to get a row")
+				errCount = append(errCount, err)
+				break
+			}
+
+			// Checkout the Row
+			res, err := tx.Exec(dbCtx, checkOutRowStmt, sp.startSlot, sp.endSlot, uniqueNodeIdentifier)
+			if err != nil {
+				loghelper.LogSlotRangeStatementError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), checkOutRowStmt, err).Error("Unable to checkout the row")
+				errCount = append(errCount, err)
+				break
+			}
+			rows, err := res.RowsAffected()
+			if err != nil {
+				loghelper.LogSlotRangeStatementError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), checkOutRowStmt, fmt.Errorf("Unable to determine the rows affected when trying to checkout a row."))
+				errCount = append(errCount, err)
+				break
+			}
+			if rows > 1 {
+				loghelper.LogSlotRangeStatementError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), checkOutRowStmt, err).WithFields(log.Fields{
+					"rowsReturn": rows,
+				}).Error("We locked too many rows.....")
+				errCount = append(errCount, err)
+				break
+			}
+			if rows == 0 {
+				loghelper.LogSlotRangeStatementError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), checkOutRowStmt, err).WithFields(log.Fields{
+					"rowsReturn": rows,
+				}).Error("We did not lock a single row.")
+				errCount = append(errCount, err)
+				break
+			}
+			err = tx.Commit(dbCtx)
+			if err != nil {
+				loghelper.LogSlotRangeError(strconv.Itoa(sp.startSlot), strconv.Itoa(sp.endSlot), err).Error("Unable commit transactions.")
+				errCount = append(errCount, err)
+				break
+			}
+			log.WithField("slots", sp).Debug("Added a new slots to be processed")
+			slotCh <- sp
+		}
+	}
+	log.WithFields(log.Fields{
+		"ErrCount": errCount,
+	}).Error("The ErrCounter")
+	return errCount
+}
+
+// After a row has been processed it should be removed from its appropriate table.
+func removeRowPostProcess(ctx context.Context, db sql.Database, processCh <-chan slotsToProcess, checkProcessedStmt, removeStmt string) error {
+	errCh := make(chan error)
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case slots := <-processCh:
+			// Make sure the start and end slot exist in the slots table.
+			go func() {
+				finishedProcess := false
+				for !finishedProcess {
+					isStartProcess, err := isSlotProcessed(db, checkProcessedStmt, strconv.Itoa(slots.startSlot))
+					if err != nil {
+						errCh <- err
+					}
+					isEndProcess, err := isSlotProcessed(db, checkProcessedStmt, strconv.Itoa(slots.endSlot))
+					if err != nil {
+						errCh <- err
+					}
+					if isStartProcess && isEndProcess {
+						finishedProcess = true
+					}
+				}
+
+				_, err := db.Exec(context.Background(), removeStmt, strconv.Itoa(slots.startSlot), strconv.Itoa(slots.endSlot))
+				if err != nil {
+					errCh <- err
+				}
+
+			}()
+			if len(errCh) != 0 {
+				return <-errCh
+			}
+		}
+	}
+}

pkg/beaconclient/processknowngaps.go

@@ -0,0 +1,139 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// This file contains all the code to process historic slots.
+
+package beaconclient
+
+import (
+	"context"
+	"strconv"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
+)
+
+var (
+	// Get a single non-checked out row row from eth_beacon.known_gaps.
+	getKgEntryStmt string = `SELECT start_slot, end_slot FROM eth_beacon.known_gaps
+	WHERE checked_out=false
+	ORDER BY priority ASC
+	LIMIT 1;`
+	// Used to periodically check to see if there is a new entry in the eth_beacon.known_gaps table.
+	checkKgEntryStmt string = `SELECT * FROM eth_beacon.known_gaps WHERE checked_out=false;`
+	// Used to checkout a row from the eth_beacon.known_gaps table
+	lockKgEntryStmt string = `UPDATE eth_beacon.known_gaps
+	SET checked_out=true, checked_out_by=$3
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Used to delete an entry from the knownGaps table
+	deleteKgEntryStmt string = `DELETE FROM eth_beacon.known_gaps
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Used to check to see if a single slot exists in the known_gaps table.
+	checkKgSingleSlotStmt string = `SELECT start_slot, end_slot FROM eth_beacon.known_gaps
+	WHERE start_slot=$1 AND end_slot=$2;`
+	// Used to update every single row that this node has checked out.
+	releaseKgLockStmt string = `UPDATE eth_beacon.known_gaps
+	SET checked_out=false, checked_out_by=null
+	WHERE checked_out_by=$1`
+)
+
+type KnownGapsProcessing struct {
+	db                   sql.Database         //db connection
+	metrics              *BeaconClientMetrics // metrics for beaconclient
+	uniqueNodeIdentifier int                  // node unique identifier.
+}
+
+// This function will perform all the heavy lifting for tracking the head of the chain.
+func (bc *BeaconClient) ProcessKnownGaps(ctx context.Context, maxWorkers int) []error {
+	log.Info("We are starting the known gaps processing service.")
+	bc.KnownGapsProcess = KnownGapsProcessing{db: bc.Db, uniqueNodeIdentifier: bc.UniqueNodeIdentifier, metrics: bc.Metrics}
+	errs := handleBatchProcess(ctx, maxWorkers, bc.KnownGapsProcess, bc.KnownGapsProcess.db, bc.ServerEndpoint, bc.Metrics, bc.CheckDb)
+	log.Debug("Exiting known gaps processing service")
+	return errs
+}
+
+// This function will perform all the necessary clean up tasks for stopping historical processing.
+func (bc *BeaconClient) StopKnownGapsProcessing(cancel context.CancelFunc) error {
+	log.Info("We are stopping the known gaps processing service.")
+	err := bc.KnownGapsProcess.releaseDbLocks(cancel)
+	if err != nil {
+		loghelper.LogError(err).WithField("uniqueIdentifier", bc.UniqueNodeIdentifier).Error("We were unable to remove the locks from the eth_beacon.known_gaps table. Manual Intervention is needed!")
+	}
+	return nil
+}
+
+// Get a single row of historical slots from the table.
+func (kgp KnownGapsProcessing) getSlotRange(ctx context.Context, slotCh chan<- slotsToProcess) []error {
+	return getBatchProcessRow(ctx, kgp.db, getKgEntryStmt, checkKgEntryStmt, lockKgEntryStmt, slotCh, strconv.Itoa(kgp.uniqueNodeIdentifier))
+}
+
+// Remove the table entry.
+func (kgp KnownGapsProcessing) removeTableEntry(ctx context.Context, processCh <-chan slotsToProcess) error {
+	return removeRowPostProcess(ctx, kgp.db, processCh, QueryBySlotStmt, deleteKgEntryStmt)
+}
+
+// Remove the table entry.
+func (kgp KnownGapsProcessing) handleProcessingErrors(ctx context.Context, errMessages <-chan batchHistoricError) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case errMs := <-errMessages:
+			// Check to see if this if this entry already exists.
+			res, err := kgp.db.Exec(context.Background(), checkKgSingleSlotStmt, errMs.slot, errMs.slot)
+			if err != nil {
+				loghelper.LogSlotError(strconv.Itoa(errMs.slot), err).Error("Unable to see if this slot is in the eth_beacon.known_gaps table")
+			}
+
+			rows, err := res.RowsAffected()
+			if err != nil {
+				loghelper.LogSlotError(strconv.Itoa(errMs.slot), err).WithFields(log.Fields{
+					"queryStatement": checkKgSingleSlotStmt,
+				}).Error("Unable to get the number of rows affected by this statement.")
+			}
+
+			if rows > 0 {
+				loghelper.LogSlotError(strconv.Itoa(errMs.slot), errMs.err).Error("We received an error when processing a knownGap")
+				err = updateKnownGapErrors(kgp.db, errMs.slot, errMs.slot, errMs.err, kgp.metrics)
+				if err != nil {
+					loghelper.LogSlotError(strconv.Itoa(errMs.slot), err).Error("Error processing known gap")
+				}
+			} else {
+				writeKnownGaps(kgp.db, 1, errMs.slot, errMs.slot, errMs.err, errMs.errProcess, kgp.metrics)
+			}
+		}
+	}
+
+}
+
+// Updated checked_out column for the uniqueNodeIdentifier.
+func (kgp KnownGapsProcessing) releaseDbLocks(cancel context.CancelFunc) error {
+	cancel()
+	log.Debug("Updating all the entries to eth_beacon.known_gaps")
+	log.Debug("Db: ", kgp.db)
+	log.Debug("kgp.uniqueNodeIdentifier ", kgp.uniqueNodeIdentifier)
+	res, err := kgp.db.Exec(context.Background(), releaseKgLockStmt, kgp.uniqueNodeIdentifier)
+	if err != nil {
+		return err
+	}
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	log.WithField("rowCount", rows).Info("Released knownGaps locks for specified rows.")
+	return nil
+}

pkg/beaconclient/processslot.go

@@ -26,6 +26,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/jackc/pgx/v4"
 	si "github.com/prysmaticlabs/prysm/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/consensus-types/wrapper"
 	dt "github.com/prysmaticlabs/prysm/encoding/ssz/detect"
@@ -35,17 +36,13 @@ import (
 
 	state "github.com/prysmaticlabs/prysm/beacon-chain/state"
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 	"golang.org/x/sync/errgroup"
 )
 
 var (
-	SlotUnmarshalError = func(obj string) string {
-		return fmt.Sprintf("Unable to properly unmarshal the Slot field in the %s.", obj)
-	}
 	ParentRootUnmarshalError  = "Unable to properly unmarshal the ParentRoot field in the SignedBeaconBlock."
-	MissingIdentifiedError    = "Can't query state without a set slot or block_root"
 	MissingEth1Data           = "Can't get the Eth1 block_hash"
 	VersionedUnmarshalerError = "Unable to create a versioned unmarshaler"
 )
@@ -73,12 +70,18 @@ type ProcessSlot struct {
 
 	// DB Write objects
 	DbSlotsModel             *DbSlots             // The model being written to the slots table.
-	DbSignedBeaconBlockModel *DbSignedBeaconBlock // The model being written to the signed_beacon_block table.
+	DbSignedBeaconBlockModel *DbSignedBeaconBlock // The model being written to the signed_block table.
-	DbBeaconState            *DbBeaconState       // The model being written to the beacon_state table.
+	DbBeaconState            *DbBeaconState       // The model being written to the state table.
 }
 
 // This function will do all the work to process the slot and write it to the DB.
-func processFullSlot(db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, headOrHistoric string, metrics *BeaconClientMetrics, knownGapsTableIncrement int) error {
+// It will return the error and error process. The error process is used for providing reach detail to the
+// known_gaps table.
+func processFullSlot(ctx context.Context, db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, headOrHistoric string, metrics *BeaconClientMetrics, knownGapsTableIncrement int, checkDb bool) (error, string) {
+	select {
+	case <-ctx.Done():
+		return nil, ""
+	default:
 		ps := &ProcessSlot{
 			Slot:           slot,
 			BlockRoot:      blockRoot,
@@ -93,77 +96,110 @@ func processFullSlot(db sql.Database, serverAddress string, slot int, blockRoot
 
 		// Get the BeaconState.
 		g.Go(func() error {
+			select {
+			case <-ctx.Done():
+				return nil
+			default:
 				err := ps.getBeaconState(serverAddress, vUnmarshalerCh)
 				if err != nil {
 					return err
 				}
 				return nil
+			}
 		})
 
 		// Get the SignedBeaconBlock.
 		g.Go(func() error {
+			select {
+			case <-ctx.Done():
+				return nil
+			default:
 				err := ps.getSignedBeaconBlock(serverAddress, vUnmarshalerCh)
 				if err != nil {
 					return err
 				}
 				return nil
+			}
 		})
 
 		if err := g.Wait(); err != nil {
-		writeKnownGaps(ps.Db, 1, ps.Slot, ps.Slot, err, "processSlot", ps.Metrics)
+			return err, "processSlot"
-		return err
 		}
 
-	if ps.HeadOrHistoric == "head" && previousSlot == 0 && previousBlockRoot == "" {
+		finalBlockRoot, finalStateRoot, finalEth1BlockHash, err := ps.provideFinalHash()
-		writeStartUpGaps(db, knownGapsTableIncrement, ps.Slot, ps.Metrics)
+		if err != nil {
+			return err, "CalculateBlockRoot"
+		}
+		if checkDb {
+			inDb, err := IsSlotInDb(ctx, ps.Db, strconv.Itoa(ps.Slot), finalBlockRoot, finalStateRoot)
+			if err != nil {
+				return err, "checkDb"
+			}
+			if inDb {
+				log.WithField("slot", slot).Info("Slot already in the DB.")
+				return nil, ""
+			}
 		}
 
 		// Get this object ready to write
-	blockRootEndpoint := serverAddress + BcBlockRootEndpoint(strconv.Itoa(ps.Slot))
+		dw, err := ps.createWriteObjects(finalBlockRoot, finalStateRoot, finalEth1BlockHash)
-	dw, err := ps.createWriteObjects(blockRootEndpoint)
 		if err != nil {
-		writeKnownGaps(ps.Db, 1, ps.Slot, ps.Slot, err, "blockRoot", ps.Metrics)
+			return err, "blockRoot"
-		return err
 		}
 		// Write the object to the DB.
-	err = dw.writeFullSlot()
+		defer func() {
+			err := dw.Tx.Rollback(dw.Ctx)
+			if err != nil && err != pgx.ErrTxClosed {
+				loghelper.LogError(err).Error("We were unable to Rollback a transaction")
+			}
+		}()
+		err = dw.transactFullSlot()
 		if err != nil {
-		writeKnownGaps(ps.Db, 1, ps.Slot, ps.Slot, err, "processSlot", ps.Metrics)
+			return err, "processSlot"
-		return err
 		}
 
 		// Handle any reorgs or skipped slots.
 		headOrHistoric = strings.ToLower(headOrHistoric)
 		if headOrHistoric != "head" && headOrHistoric != "historic" {
-		return fmt.Errorf("headOrHistoric must be either historic or head!")
+			return fmt.Errorf("headOrHistoric must be either historic or head!"), ""
 		}
 		if ps.HeadOrHistoric == "head" && previousSlot != 0 && previousBlockRoot != "" && ps.Status != "skipped" {
-		ps.checkPreviousSlot(previousSlot, previousBlockRoot, knownGapsTableIncrement)
+			ps.checkPreviousSlot(dw.Tx, dw.Ctx, previousSlot, previousBlockRoot, knownGapsTableIncrement)
+		}
+
+		// Commit the transaction
+		if err = dw.Tx.Commit(dw.Ctx); err != nil {
+			return err, "transactionCommit"
+		}
+
+		return nil, ""
 	}
-	return nil
 }
 
 // Handle a slot that is at head. A wrapper function for calling `handleFullSlot`.
-func processHeadSlot(db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, metrics *BeaconClientMetrics, knownGapsTableIncrement int) error {
+func processHeadSlot(db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, metrics *BeaconClientMetrics, knownGapsTableIncrement int, checkDb bool) {
-	return processFullSlot(db, serverAddress, slot, blockRoot, stateRoot, previousSlot, previousBlockRoot, "head", metrics, knownGapsTableIncrement)
+	// Get the knownGaps at startUp.
+	if previousSlot == 0 && previousBlockRoot == "" {
+		writeStartUpGaps(db, knownGapsTableIncrement, slot, metrics)
+	}
+	err, errReason := processFullSlot(context.Background(), db, serverAddress, slot, blockRoot, stateRoot, previousSlot, previousBlockRoot, "head", metrics, knownGapsTableIncrement, checkDb)
+	if err != nil {
+		writeKnownGaps(db, knownGapsTableIncrement, slot, slot, err, errReason, metrics)
+	}
 }
 
 // Handle a historic slot. A wrapper function for calling `handleFullSlot`.
-// Commented because of the linter...... LOL
+func handleHistoricSlot(ctx context.Context, db sql.Database, serverAddress string, slot int, metrics *BeaconClientMetrics, checkDb bool) (error, string) {
-//func handleHistoricSlot(db sql.Database, serverAddress string, slot int) error {
+	return processFullSlot(ctx, db, serverAddress, slot, "", "", 0, "", "historic", metrics, 1, checkDb)
-//	return handleFullSlot(db, serverAddress, slot, "", "", 0, "", "historic")
+}
-//}
 
 // Update the SszSignedBeaconBlock and FullSignedBeaconBlock object with their respective values.
 func (ps *ProcessSlot) getSignedBeaconBlock(serverAddress string, vmCh <-chan *dt.VersionedUnmarshaler) error {
 	var blockIdentifier string // Used to query the block
 	if ps.BlockRoot != "" {
 		blockIdentifier = ps.BlockRoot
-	} else if ps.Slot != 0 {
-		blockIdentifier = strconv.Itoa(ps.Slot)
 	} else {
-		log.Error(MissingIdentifiedError)
+		blockIdentifier = strconv.Itoa(ps.Slot)
-		return fmt.Errorf(MissingIdentifiedError)
 	}
 	blockEndpoint := serverAddress + BcBlockQueryEndpoint + blockIdentifier
 	var err error
@@ -189,15 +225,8 @@ func (ps *ProcessSlot) getSignedBeaconBlock(serverAddress string, vmCh <-chan *d
 
 	ps.FullSignedBeaconBlock, err = vm.UnmarshalBeaconBlock(ps.SszSignedBeaconBlock)
 	if err != nil {
-		loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error("We are getting an error message when unmarshalling the SignedBeaconBlock.")
+		loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Warn("Unable to process the slots SignedBeaconBlock")
-		if ps.FullSignedBeaconBlock.Block().Slot() == 0 {
+		return nil
-			loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error(SlotUnmarshalError("SignedBeaconBlock"))
-			return fmt.Errorf(SlotUnmarshalError("SignedBeaconBlock"))
-		} else if ps.FullSignedBeaconBlock.Block().ParentRoot() == nil {
-			loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error(ParentRootUnmarshalError)
-			return fmt.Errorf(ParentRootUnmarshalError)
-		}
-		log.Warn("We received a processing error: ", err)
 	}
 	ps.ParentBlockRoot = "0x" + hex.EncodeToString(ps.FullSignedBeaconBlock.Block().ParentRoot())
 	return nil
@@ -208,11 +237,8 @@ func (ps *ProcessSlot) getBeaconState(serverEndpoint string, vmCh chan<- *dt.Ver
 	var stateIdentifier string // Used to query the state
 	if ps.StateRoot != "" {
 		stateIdentifier = ps.StateRoot
-	} else if ps.Slot != 0 {
-		stateIdentifier = strconv.Itoa(ps.Slot)
 	} else {
-		log.Error(MissingIdentifiedError)
+		stateIdentifier = strconv.Itoa(ps.Slot)
-		return fmt.Errorf(MissingIdentifiedError)
 	}
 	stateEndpoint := serverEndpoint + BcStateQueryEndpoint + stateIdentifier
 	ps.SszBeaconState, _, _ = querySsz(stateEndpoint, strconv.Itoa(ps.Slot))
@@ -226,53 +252,68 @@ func (ps *ProcessSlot) getBeaconState(serverEndpoint string, vmCh chan<- *dt.Ver
 	vmCh <- versionedUnmarshaler
 	ps.FullBeaconState, err = versionedUnmarshaler.UnmarshalBeaconState(ps.SszBeaconState)
 	if err != nil {
-		loghelper.LogError(err).Error("We are getting an error message when unmarshalling the BeaconState")
+		loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error("Unable to process the slots BeaconState")
-		if ps.FullBeaconState.Slot() == 0 {
+		return err
-			loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error(SlotUnmarshalError("BeaconState"))
-			return fmt.Errorf(SlotUnmarshalError("BeaconState"))
-		} else if hex.EncodeToString(ps.FullBeaconState.Eth1Data().BlockHash) == "" {
-			loghelper.LogSlotError(strconv.Itoa(ps.Slot), err).Error(MissingEth1Data)
-			return fmt.Errorf(MissingEth1Data)
-		}
 	}
 	return nil
 }
 
 // Check to make sure that the previous block we processed is the parent of the current block.
-func (ps *ProcessSlot) checkPreviousSlot(previousSlot int, previousBlockRoot string, knownGapsTableIncrement int) {
+func (ps *ProcessSlot) checkPreviousSlot(tx sql.Tx, ctx context.Context, previousSlot int, previousBlockRoot string, knownGapsTableIncrement int) {
 	parentRoot := "0x" + hex.EncodeToString(ps.FullSignedBeaconBlock.Block().ParentRoot())
 	if previousSlot == int(ps.FullBeaconState.Slot()) {
 		log.WithFields(log.Fields{
-			"slot": ps.FullBeaconState.Slot,
+			"slot": ps.FullBeaconState.Slot(),
 			"fork": true,
 		}).Warn("A fork occurred! The previous slot and current slot match.")
-		writeReorgs(ps.Db, strconv.Itoa(ps.Slot), ps.BlockRoot, ps.Metrics)
+		transactReorgs(tx, ctx, strconv.Itoa(ps.Slot), ps.BlockRoot, ps.Metrics)
+	} else if previousSlot > int(ps.FullBeaconState.Slot()) {
+		log.WithFields(log.Fields{
+			"previousSlot": previousSlot,
+			"curSlot":      int(ps.FullBeaconState.Slot()),
+		}).Warn("We noticed the previous slot is greater than the current slot.")
 	} else if previousSlot+1 != int(ps.FullBeaconState.Slot()) {
 		log.WithFields(log.Fields{
 			"previousSlot": previousSlot,
 			"currentSlot":  ps.FullBeaconState.Slot(),
 		}).Error("We skipped a few slots.")
-		writeKnownGaps(ps.Db, knownGapsTableIncrement, previousSlot+1, int(ps.FullBeaconState.Slot())-1, fmt.Errorf("Gaps during head processing"), "headGaps", ps.Metrics)
+		transactKnownGaps(tx, ctx, knownGapsTableIncrement, previousSlot+1, int(ps.FullBeaconState.Slot())-1, fmt.Errorf("Gaps during head processing"), "headGaps", ps.Metrics)
 	} else if previousBlockRoot != parentRoot {
 		log.WithFields(log.Fields{
 			"previousBlockRoot":  previousBlockRoot,
 			"currentBlockParent": parentRoot,
 		}).Error("The previousBlockRoot does not match the current blocks parent, an unprocessed fork might have occurred.")
-		writeReorgs(ps.Db, strconv.Itoa(previousSlot), parentRoot, ps.Metrics)
+		transactReorgs(tx, ctx, strconv.Itoa(previousSlot), parentRoot, ps.Metrics)
 	} else {
 		log.Debug("Previous Slot and Current Slot are one distance from each other.")
 	}
 }
 
 // Transforms all the raw data into DB models that can be written to the DB.
-func (ps *ProcessSlot) createWriteObjects(blockRootEndpoint string) (*DatabaseWriter, error) {
+func (ps *ProcessSlot) createWriteObjects(blockRoot, stateRoot, eth1BlockHash string) (*DatabaseWriter, error) {
+	var status string
+	if ps.Status != "" {
+		status = ps.Status
+	} else {
+		status = "proposed"
+	}
+
+	dw, err := CreateDatabaseWrite(ps.Db, ps.Slot, stateRoot, blockRoot, ps.ParentBlockRoot, eth1BlockHash, status, ps.SszSignedBeaconBlock, ps.SszBeaconState, ps.Metrics)
+	if err != nil {
+		return dw, err
+	}
+
+	return dw, nil
+}
+
+// This function will return the final blockRoot, stateRoot, and eth1BlockHash that will be
+// used to write to a DB
+func (ps *ProcessSlot) provideFinalHash() (string, string, string, error) {
 	var (
 		stateRoot     string
 		blockRoot     string
-		status        string
 		eth1BlockHash string
 	)
-
 	if ps.Status == "skipped" {
 		stateRoot = ""
 		blockRoot = ""
@@ -289,24 +330,15 @@ func (ps *ProcessSlot) createWriteObjects(blockRootEndpoint string) (*DatabaseWr
 			blockRoot = ps.BlockRoot
 		} else {
 			var err error
-			blockRoot, err = queryBlockRoot(blockRootEndpoint, strconv.Itoa(ps.Slot))
+			rawBlockRoot, err := ps.FullSignedBeaconBlock.Block().HashTreeRoot()
+			//blockRoot, err = queryBlockRoot(blockRootEndpoint, strconv.Itoa(ps.Slot))
 			if err != nil {
-				return nil, err
+				return "", "", "", err
 			}
+			blockRoot = "0x" + hex.EncodeToString(rawBlockRoot[:])
+			log.WithFields(log.Fields{"blockRoot": blockRoot}).Debug("Block Root from ssz")
 		}
 		eth1BlockHash = "0x" + hex.EncodeToString(ps.FullSignedBeaconBlock.Block().Body().Eth1Data().BlockHash)
 	}
-
+	return blockRoot, stateRoot, eth1BlockHash, nil
-	if ps.Status != "" {
-		status = ps.Status
-	} else {
-		status = "proposed"
-	}
-
-	dw, err := CreateDatabaseWrite(ps.Db, ps.Slot, stateRoot, blockRoot, ps.ParentBlockRoot, eth1BlockHash, status, ps.SszSignedBeaconBlock, ps.SszBeaconState, ps.Metrics)
-	if err != nil {
-		return dw, err
-	}
-
-	return dw, nil
 }

pkg/beaconclient/queryserver.go

@@ -24,7 +24,7 @@ import (
 	"net/http"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // A helper function to query endpoints that utilize slots.

pkg/beaconclient/systemvalidation_test.go

@@ -0,0 +1,69 @@
+package beaconclient_test
+
+import (
+	"os"
+	"strconv"
+	"time"
+
+	. "github.com/onsi/ginkgo/v2"
+	//. "github.com/onsi/gomega"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/beaconclient"
+)
+
+var (
+	prodConfig = Config{
+		protocol:                os.Getenv("bc_protocol"),
+		address:                 os.Getenv("bc_address"),
+		port:                    getEnvInt(os.Getenv("bc_port")),
+		dbHost:                  os.Getenv("db_host"),
+		dbPort:                  getEnvInt(os.Getenv("db_port")),
+		dbName:                  os.Getenv("db_name"),
+		dbUser:                  os.Getenv("db_user"),
+		dbPassword:              os.Getenv("db_password"),
+		dbDriver:                os.Getenv("db_driver"),
+		knownGapsTableIncrement: 100000000,
+		bcUniqueIdentifier:      100,
+		checkDb:                 false,
+	}
+)
+var _ = Describe("Systemvalidation", Label("system"), func() {
+	Describe("Run the application against a running lighthouse node", func() {
+		Context("When we receive head messages", func() {
+			It("We should process the messages successfully", func() {
+				bc := setUpTest(prodConfig, "10000000000")
+				processProdHeadBlocks(bc, 3, 0, 0, 0)
+			})
+		})
+		Context("When we have historical and knownGaps slots to process", Label("system-batch"), func() {
+			It("Should process them successfully", func() {
+				bc := setUpTest(prodConfig, "10000000000")
+				//known Gaps
+				BeaconNodeTester.writeEventToKnownGaps(bc, 100, 101)
+				BeaconNodeTester.runKnownGapsProcess(bc, 2, 2, 0, 0, 0)
+
+				// Historical
+				BeaconNodeTester.writeEventToHistoricProcess(bc, 2375703, 2375703, 10)
+				BeaconNodeTester.runHistoricalProcess(bc, 2, 3, 0, 0, 0)
+
+				time.Sleep(2 * time.Second)
+				validatePopularBatchBlocks(bc)
+			})
+		})
+	})
+})
+
+// Wrapper function to get int env variables.
+func getEnvInt(envVar string) int {
+	val, err := strconv.Atoi(envVar)
+	if err != nil {
+		return 0
+	}
+	return val
+}
+
+// Start head tracking and wait for the expected results.
+func processProdHeadBlocks(bc *beaconclient.BeaconClient, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError uint64) {
+	go bc.CaptureHead()
+	time.Sleep(1 * time.Second)
+	validateMetrics(bc, expectedInserts, expectedReorgs, expectedKnownGaps, expectedKnownGapsReprocessError)
+}

pkg/database/sql/postgres/database.go

@@ -20,8 +20,8 @@ import (
 	"fmt"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 var _ sql.Database = &DB{}
@@ -49,7 +49,7 @@ func SetupPostgresDb(dbHostname string, dbPort int, dbName string, dbUsername st
 			"driver_name_provided": driverName,
 		}).Error("Can't resolve driver type")
 	}
-	log.Info("Using Driver:", DbDriver)
+	log.Info("Using Driver: ", DbDriver)
 
 	postgresConfig := Config{
 		Hostname:     dbHostname,

pkg/database/sql/postgres/pgx.go

@@ -23,7 +23,7 @@ import (
 	"github.com/jackc/pgconn"
 	"github.com/jackc/pgx/v4"
 	"github.com/jackc/pgx/v4/pgxpool"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
 )
 
 // pgxDriver driver, implements sql.Driver

pkg/database/sql/postgres/pgx_test.go

@@ -23,9 +23,9 @@ import (
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql/postgres"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/database/sql/postgres"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/testhelpers"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/testhelpers"
 )
 
 var _ = Describe("Pgx", func() {

pkg/gracefulshutdown/gracefulshutdown.go

@@ -25,7 +25,7 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+	"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
 )
 
 // operation is a clean up function on shutting down

pkg/loghelper/logerror.go

@@ -27,9 +27,26 @@ func LogError(err error) *log.Entry {
 	})
 }
 
+// A simple herlper function to log slot and error.
 func LogSlotError(slot string, err error) *log.Entry {
 	return log.WithFields(log.Fields{
 		"err":  err,
 		"slot": slot,
 	})
 }
+
+func LogSlotRangeError(startSlot string, endSlot string, err error) *log.Entry {
+	return log.WithFields(log.Fields{
+		"err":       err,
+		"startSlot": startSlot,
+		"endSlot":   endSlot,
+	})
+}
+func LogSlotRangeStatementError(startSlot string, endSlot string, statement string, err error) *log.Entry {
+	return log.WithFields(log.Fields{
+		"err":          err,
+		"startSlot":    startSlot,
+		"endSlot":      endSlot,
+		"SqlStatement": statement,
+	})
+}