718 lines
23 KiB
Go
718 lines
23 KiB
Go
// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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//
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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Tests that abnormal program termination (i.e.crash) and restart can recovery
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// the snapshot properly if the snapshot is enabled.
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package core
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/params"
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)
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// snapshotTestBasic wraps the common testing fields in the snapshot tests.
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type snapshotTestBasic struct {
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chainBlocks int // Number of blocks to generate for the canonical chain
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snapshotBlock uint64 // Block number of the relevant snapshot disk layer
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commitBlock uint64 // Block number for which to commit the state to disk
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expCanonicalBlocks int // Number of canonical blocks expected to remain in the database (excl. genesis)
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expHeadHeader uint64 // Block number of the expected head header
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expHeadFastBlock uint64 // Block number of the expected head fast sync block
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expHeadBlock uint64 // Block number of the expected head full block
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expSnapshotBottom uint64 // The block height corresponding to the snapshot disk layer
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// share fields, set in runtime
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datadir string
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db ethdb.Database
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gendb ethdb.Database
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engine consensus.Engine
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}
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func (basic *snapshotTestBasic) prepare(t *testing.T) (*BlockChain, []*types.Block) {
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// Create a temporary persistent database
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datadir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatalf("Failed to create temporary datadir: %v", err)
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}
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os.RemoveAll(datadir)
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db, err := rawdb.NewLevelDBDatabaseWithFreezer(datadir, 0, 0, datadir, "", false)
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if err != nil {
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t.Fatalf("Failed to create persistent database: %v", err)
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}
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// Initialize a fresh chain
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var (
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genesis = new(Genesis).MustCommit(db)
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engine = ethash.NewFullFaker()
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gendb = rawdb.NewMemoryDatabase()
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// Snapshot is enabled, the first snapshot is created from the Genesis.
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// The snapshot memory allowance is 256MB, it means no snapshot flush
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// will happen during the block insertion.
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cacheConfig = defaultCacheConfig
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)
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chain, err := NewBlockChain(db, cacheConfig, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to create chain: %v", err)
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}
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blocks, _ := GenerateChain(params.TestChainConfig, genesis, engine, gendb, basic.chainBlocks, func(i int, b *BlockGen) {})
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// Insert the blocks with configured settings.
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var breakpoints []uint64
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if basic.commitBlock > basic.snapshotBlock {
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breakpoints = append(breakpoints, basic.snapshotBlock, basic.commitBlock)
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} else {
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breakpoints = append(breakpoints, basic.commitBlock, basic.snapshotBlock)
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}
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var startPoint uint64
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for _, point := range breakpoints {
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if _, err := chain.InsertChain(blocks[startPoint:point]); err != nil {
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t.Fatalf("Failed to import canonical chain start: %v", err)
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}
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startPoint = point
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if basic.commitBlock > 0 && basic.commitBlock == point {
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chain.stateCache.TrieDB().Commit(blocks[point-1].Root(), true, nil)
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}
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if basic.snapshotBlock > 0 && basic.snapshotBlock == point {
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// Flushing the entire snap tree into the disk, the
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// relavant (a) snapshot root and (b) snapshot generator
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// will be persisted atomically.
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chain.snaps.Cap(blocks[point-1].Root(), 0)
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diskRoot, blockRoot := chain.snaps.DiskRoot(), blocks[point-1].Root()
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if !bytes.Equal(diskRoot.Bytes(), blockRoot.Bytes()) {
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t.Fatalf("Failed to flush disk layer change, want %x, got %x", blockRoot, diskRoot)
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}
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}
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}
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if _, err := chain.InsertChain(blocks[startPoint:]); err != nil {
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t.Fatalf("Failed to import canonical chain tail: %v", err)
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}
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// Set runtime fields
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basic.datadir = datadir
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basic.db = db
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basic.gendb = gendb
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basic.engine = engine
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return chain, blocks
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}
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func (basic *snapshotTestBasic) verify(t *testing.T, chain *BlockChain, blocks []*types.Block) {
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// Iterate over all the remaining blocks and ensure there are no gaps
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verifyNoGaps(t, chain, true, blocks)
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verifyCutoff(t, chain, true, blocks, basic.expCanonicalBlocks)
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if head := chain.CurrentHeader(); head.Number.Uint64() != basic.expHeadHeader {
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t.Errorf("Head header mismatch: have %d, want %d", head.Number, basic.expHeadHeader)
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}
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if head := chain.CurrentFastBlock(); head.NumberU64() != basic.expHeadFastBlock {
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t.Errorf("Head fast block mismatch: have %d, want %d", head.NumberU64(), basic.expHeadFastBlock)
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}
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if head := chain.CurrentBlock(); head.NumberU64() != basic.expHeadBlock {
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t.Errorf("Head block mismatch: have %d, want %d", head.NumberU64(), basic.expHeadBlock)
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}
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// Check the disk layer, ensure they are matched
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block := chain.GetBlockByNumber(basic.expSnapshotBottom)
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if block == nil {
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t.Errorf("The correspnding block[%d] of snapshot disk layer is missing", basic.expSnapshotBottom)
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} else if !bytes.Equal(chain.snaps.DiskRoot().Bytes(), block.Root().Bytes()) {
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t.Errorf("The snapshot disk layer root is incorrect, want %x, get %x", block.Root(), chain.snaps.DiskRoot())
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}
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// Check the snapshot, ensure it's integrated
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if err := chain.snaps.Verify(block.Root()); err != nil {
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t.Errorf("The disk layer is not integrated %v", err)
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}
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}
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func (basic *snapshotTestBasic) dump() string {
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buffer := new(strings.Builder)
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fmt.Fprint(buffer, "Chain:\n G")
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for i := 0; i < basic.chainBlocks; i++ {
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fmt.Fprintf(buffer, "->C%d", i+1)
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}
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fmt.Fprint(buffer, " (HEAD)\n\n")
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fmt.Fprintf(buffer, "Commit: G")
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if basic.commitBlock > 0 {
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fmt.Fprintf(buffer, ", C%d", basic.commitBlock)
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}
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fmt.Fprint(buffer, "\n")
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fmt.Fprintf(buffer, "Snapshot: G")
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if basic.snapshotBlock > 0 {
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fmt.Fprintf(buffer, ", C%d", basic.snapshotBlock)
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}
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fmt.Fprint(buffer, "\n")
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//if crash {
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// fmt.Fprintf(buffer, "\nCRASH\n\n")
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//} else {
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// fmt.Fprintf(buffer, "\nSetHead(%d)\n\n", basic.setHead)
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//}
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fmt.Fprintf(buffer, "------------------------------\n\n")
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fmt.Fprint(buffer, "Expected in leveldb:\n G")
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for i := 0; i < basic.expCanonicalBlocks; i++ {
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fmt.Fprintf(buffer, "->C%d", i+1)
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}
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fmt.Fprintf(buffer, "\n\n")
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fmt.Fprintf(buffer, "Expected head header : C%d\n", basic.expHeadHeader)
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fmt.Fprintf(buffer, "Expected head fast block: C%d\n", basic.expHeadFastBlock)
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if basic.expHeadBlock == 0 {
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fmt.Fprintf(buffer, "Expected head block : G\n")
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} else {
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fmt.Fprintf(buffer, "Expected head block : C%d\n", basic.expHeadBlock)
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}
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if basic.expSnapshotBottom == 0 {
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fmt.Fprintf(buffer, "Expected snapshot disk : G\n")
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} else {
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fmt.Fprintf(buffer, "Expected snapshot disk : C%d\n", basic.expSnapshotBottom)
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}
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return buffer.String()
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}
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func (basic *snapshotTestBasic) teardown() {
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basic.db.Close()
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basic.gendb.Close()
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os.RemoveAll(basic.datadir)
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}
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// snapshotTest is a test case type for normal snapshot recovery.
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// It can be used for testing that restart Geth normally.
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type snapshotTest struct {
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snapshotTestBasic
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}
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func (snaptest *snapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Restart the chain normally
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chain.Stop()
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newchain, err := NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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defer newchain.Stop()
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snaptest.verify(t, newchain, blocks)
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}
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// crashSnapshotTest is a test case type for innormal snapshot recovery.
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// It can be used for testing that restart Geth after the crash.
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type crashSnapshotTest struct {
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snapshotTestBasic
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}
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func (snaptest *crashSnapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Pull the plug on the database, simulating a hard crash
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db := chain.db
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db.Close()
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// Start a new blockchain back up and see where the repair leads us
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newdb, err := rawdb.NewLevelDBDatabaseWithFreezer(snaptest.datadir, 0, 0, snaptest.datadir, "", false)
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if err != nil {
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t.Fatalf("Failed to reopen persistent database: %v", err)
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}
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defer newdb.Close()
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// The interesting thing is: instead of starting the blockchain after
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// the crash, we do restart twice here: one after the crash and one
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// after the normal stop. It's used to ensure the broken snapshot
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// can be detected all the time.
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newchain, err := NewBlockChain(newdb, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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newchain.Stop()
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newchain, err = NewBlockChain(newdb, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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defer newchain.Stop()
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snaptest.verify(t, newchain, blocks)
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}
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// gappedSnapshotTest is a test type used to test this scenario:
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// - have a complete snapshot
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// - restart without enabling the snapshot
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// - insert a few blocks
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// - restart with enabling the snapshot again
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type gappedSnapshotTest struct {
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snapshotTestBasic
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gapped int // Number of blocks to insert without enabling snapshot
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}
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func (snaptest *gappedSnapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Insert blocks without enabling snapshot if gapping is required.
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chain.Stop()
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gappedBlocks, _ := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], snaptest.engine, snaptest.gendb, snaptest.gapped, func(i int, b *BlockGen) {})
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// Insert a few more blocks without enabling snapshot
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var cacheConfig = &CacheConfig{
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TrieCleanLimit: 256,
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TrieDirtyLimit: 256,
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TrieTimeLimit: 5 * time.Minute,
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SnapshotLimit: 0,
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}
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newchain, err := NewBlockChain(snaptest.db, cacheConfig, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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newchain.InsertChain(gappedBlocks)
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newchain.Stop()
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// Restart the chain with enabling the snapshot
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newchain, err = NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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defer newchain.Stop()
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snaptest.verify(t, newchain, blocks)
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}
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// setHeadSnapshotTest is the test type used to test this scenario:
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// - have a complete snapshot
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// - set the head to a lower point
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// - restart
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type setHeadSnapshotTest struct {
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snapshotTestBasic
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setHead uint64 // Block number to set head back to
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}
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func (snaptest *setHeadSnapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Rewind the chain if setHead operation is required.
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chain.SetHead(snaptest.setHead)
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chain.Stop()
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newchain, err := NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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defer newchain.Stop()
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snaptest.verify(t, newchain, blocks)
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}
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// restartCrashSnapshotTest is the test type used to test this scenario:
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// - have a complete snapshot
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// - restart chain
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// - insert more blocks with enabling the snapshot
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// - commit the snapshot
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// - crash
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// - restart again
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type restartCrashSnapshotTest struct {
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snapshotTestBasic
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newBlocks int
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}
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func (snaptest *restartCrashSnapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Firstly, stop the chain properly, with all snapshot journal
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// and state committed.
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chain.Stop()
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newchain, err := NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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newBlocks, _ := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], snaptest.engine, snaptest.gendb, snaptest.newBlocks, func(i int, b *BlockGen) {})
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newchain.InsertChain(newBlocks)
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// Commit the entire snapshot into the disk if requested. Note only
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// (a) snapshot root and (b) snapshot generator will be committed,
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// the diff journal is not.
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newchain.Snapshots().Cap(newBlocks[len(newBlocks)-1].Root(), 0)
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// Simulate the blockchain crash
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// Don't call chain.Stop here, so that no snapshot
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// journal and latest state will be committed
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// Restart the chain after the crash
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newchain, err = NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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defer newchain.Stop()
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snaptest.verify(t, newchain, blocks)
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}
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// wipeCrashSnapshotTest is the test type used to test this scenario:
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// - have a complete snapshot
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// - restart, insert more blocks without enabling the snapshot
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// - restart again with enabling the snapshot
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// - crash
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type wipeCrashSnapshotTest struct {
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snapshotTestBasic
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newBlocks int
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}
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func (snaptest *wipeCrashSnapshotTest) test(t *testing.T) {
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// It's hard to follow the test case, visualize the input
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// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
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// fmt.Println(tt.dump())
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chain, blocks := snaptest.prepare(t)
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// Firstly, stop the chain properly, with all snapshot journal
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// and state committed.
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chain.Stop()
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config := &CacheConfig{
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TrieCleanLimit: 256,
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TrieDirtyLimit: 256,
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TrieTimeLimit: 5 * time.Minute,
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SnapshotLimit: 0,
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}
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newchain, err := NewBlockChain(snaptest.db, config, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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newBlocks, _ := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], snaptest.engine, snaptest.gendb, snaptest.newBlocks, func(i int, b *BlockGen) {})
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newchain.InsertChain(newBlocks)
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newchain.Stop()
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// Restart the chain, the wiper should starts working
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config = &CacheConfig{
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TrieCleanLimit: 256,
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TrieDirtyLimit: 256,
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TrieTimeLimit: 5 * time.Minute,
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SnapshotLimit: 256,
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SnapshotWait: false, // Don't wait rebuild
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}
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newchain, err = NewBlockChain(snaptest.db, config, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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// Simulate the blockchain crash.
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newchain, err = NewBlockChain(snaptest.db, nil, params.AllEthashProtocolChanges, snaptest.engine, vm.Config{}, nil, nil)
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if err != nil {
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t.Fatalf("Failed to recreate chain: %v", err)
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}
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snaptest.verify(t, newchain, blocks)
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}
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// Tests a Geth restart with valid snapshot. Before the shutdown, all snapshot
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// journal will be persisted correctly. In this case no snapshot recovery is
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// required.
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func TestRestartWithNewSnapshot(t *testing.T) {
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// Chain:
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// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
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//
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// Commit: G
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// Snapshot: G
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//
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// SetHead(0)
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//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : C8
|
|
// Expected snapshot disk : G
|
|
test := &snapshotTest{
|
|
snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 8,
|
|
expSnapshotBottom: 0, // Initial disk layer built from genesis
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
|
|
// chain head should be rewound to the point with available state. And also the
|
|
// new head should must be lower than disk layer. But there is no committed point
|
|
// so the chain should be rewound to genesis and the disk layer should be left
|
|
// for recovery.
|
|
func TestNoCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : G
|
|
// Expected snapshot disk : C4
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 0,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
|
|
// chain head should be rewound to the point with available state. And also the
|
|
// new head should must be lower than disk layer. But there is only a low committed
|
|
// point so the chain should be rewound to committed point and the disk layer
|
|
// should be left for recovery.
|
|
func TestLowCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G, C2
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : C2
|
|
// Expected snapshot disk : C4
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 2,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 2,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests a Geth was crashed and restarts with a broken snapshot. In this case
|
|
// the chain head should be rewound to the point with available state. And also
|
|
// the new head should must be lower than disk layer. But there is only a high
|
|
// committed point so the chain should be rewound to genesis and the disk layer
|
|
// should be left for recovery.
|
|
func TestHighCommitCrashWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G, C6
|
|
// Snapshot: G, C4
|
|
//
|
|
// CRASH
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
|
//
|
|
// Expected head header : C8
|
|
// Expected head fast block: C8
|
|
// Expected head block : G
|
|
// Expected snapshot disk : C4
|
|
test := &crashSnapshotTest{
|
|
snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 6,
|
|
expCanonicalBlocks: 8,
|
|
expHeadHeader: 8,
|
|
expHeadFastBlock: 8,
|
|
expHeadBlock: 0,
|
|
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
|
|
},
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests a Geth was running with snapshot enabled. Then restarts without
|
|
// enabling snapshot and after that re-enable the snapshot again. In this
|
|
// case the snapshot should be rebuilt with latest chain head.
|
|
func TestGappedNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(0)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
|
|
//
|
|
// Expected head header : C10
|
|
// Expected head fast block: C10
|
|
// Expected head block : C10
|
|
// Expected snapshot disk : C10
|
|
test := &gappedSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 10,
|
|
expHeadHeader: 10,
|
|
expHeadFastBlock: 10,
|
|
expHeadBlock: 10,
|
|
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
|
|
},
|
|
gapped: 2,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests the Geth was running with snapshot enabled and resetHead is applied.
|
|
// In this case the head is rewound to the target(with state available). After
|
|
// that the chain is restarted and the original disk layer is kept.
|
|
func TestSetHeadWithNewSnapshot(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(4)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4
|
|
//
|
|
// Expected head header : C4
|
|
// Expected head fast block: C4
|
|
// Expected head block : C4
|
|
// Expected snapshot disk : G
|
|
test := &setHeadSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 0,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 4,
|
|
expHeadHeader: 4,
|
|
expHeadFastBlock: 4,
|
|
expHeadBlock: 4,
|
|
expSnapshotBottom: 0, // The initial disk layer is built from the genesis
|
|
},
|
|
setHead: 4,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|
|
|
|
// Tests the Geth was running with a complete snapshot and then imports a few
|
|
// more new blocks on top without enabling the snapshot. After the restart,
|
|
// crash happens. Check everything is ok after the restart.
|
|
func TestRecoverSnapshotFromWipingCrash(t *testing.T) {
|
|
// Chain:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
|
|
//
|
|
// Commit: G
|
|
// Snapshot: G
|
|
//
|
|
// SetHead(0)
|
|
//
|
|
// ------------------------------
|
|
//
|
|
// Expected in leveldb:
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
|
|
//
|
|
// Expected head header : C10
|
|
// Expected head fast block: C10
|
|
// Expected head block : C8
|
|
// Expected snapshot disk : C10
|
|
test := &wipeCrashSnapshotTest{
|
|
snapshotTestBasic: snapshotTestBasic{
|
|
chainBlocks: 8,
|
|
snapshotBlock: 4,
|
|
commitBlock: 0,
|
|
expCanonicalBlocks: 10,
|
|
expHeadHeader: 10,
|
|
expHeadFastBlock: 10,
|
|
expHeadBlock: 10,
|
|
expSnapshotBottom: 10,
|
|
},
|
|
newBlocks: 2,
|
|
}
|
|
test.test(t)
|
|
test.teardown()
|
|
}
|