Thomas E Lackey
27fa54c6dc
1. Updates or replaces outdated dependencies (eg, replacing a version of the Prysm client with the latest zrnt). 2. Add support for parsing Bellatrix-era BeaconState and BeaconBlocks 3. Adds flags for toggling the processing of BeaconBlocks and BeaconState. This is particularly important because processing and storing the BeaconState at this time would be too expensive to really do (see: Temporarily disable BeaconState indexing #75 and [Feature] Reduce the Amount of DB Space the Beacon Chain Needs #71) 4. Fixes flaky event handling. The previous code would not reconnect in the case of errors with the SSE connection. This enables automatic reconnection in the case of error (default in the updated v2 SSE library dependency), and also adds a timeout so that if no event is received in 2.5x the block time, the SSE connection is closed and re-established. 5. Other refactoring and cleanup (eg, changing the type of slot from int to Slot (uint64)).
81 lines
2.7 KiB
Go
81 lines
2.7 KiB
Go
// VulcanizeDB
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// Copyright © 2022 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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// This file contains all the functions to handle SSE events after they have been turned
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// to the structs.
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package beaconclient
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import (
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"fmt"
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log "github.com/sirupsen/logrus"
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"github.com/vulcanize/ipld-eth-beacon-indexer/pkg/loghelper"
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)
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// This function will perform the necessary steps to handle a reorg.
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func (bc *BeaconClient) handleReorg() {
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log.Info("Starting to process reorgs.")
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for {
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reorg := <-bc.ReOrgTracking.ProcessCh
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log.WithFields(log.Fields{"reorg": reorg}).Debug("Received a new reorg message.")
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slot, err := ParseSlot(reorg.Slot)
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if nil != err {
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loghelper.LogSlotError(slot.Number(), err)
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}
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writeReorgs(bc.Db, slot, reorg.NewHeadBlock, bc.Metrics)
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}
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}
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// This function will handle the latest head event.
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func (bc *BeaconClient) handleHead() {
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log.Info("Starting to process head.")
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errorSlots := 0
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for {
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head := <-bc.HeadTracking.ProcessCh
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// Process all the work here.
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slot, err := ParseSlot(head.Slot)
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if err != nil {
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bc.HeadTracking.ErrorCh <- &SseError{
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err: fmt.Errorf("Unable to turn the slot from string to int: %s", head.Slot),
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}
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errorSlots = errorSlots + 1
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continue
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}
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if errorSlots != 0 && bc.PreviousSlot != 0 {
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log.WithFields(log.Fields{
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"lastProcessedSlot": bc.PreviousSlot,
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"errorSlots": errorSlots,
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}).Warn("We added slots to the knownGaps table because we got bad head messages.")
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writeKnownGaps(bc.Db, bc.KnownGapTableIncrement, bc.PreviousSlot+1, slot, fmt.Errorf("Bad Head Messages"), "headProcessing", bc.Metrics)
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errorSlots = 0
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}
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log.WithFields(log.Fields{"head": head}).Debug("We are going to start processing the slot.")
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// Not used anywhere yet but might be useful to have.
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if bc.PreviousSlot == 0 && bc.PreviousBlockRoot == "" {
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bc.StartingSlot = slot
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}
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go processHeadSlot(slot, head.Block, head.State, bc.SlotProcessingDetails())
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log.WithFields(log.Fields{"head": head.Slot}).Debug("We finished calling processHeadSlot.")
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// Update the previous block
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bc.PreviousSlot = slot
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bc.PreviousBlockRoot = head.Block
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}
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}
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