forked from cerc-io/plugeth
733 lines
23 KiB
Go
733 lines
23 KiB
Go
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// 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/ethash"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/params"
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)
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// snapshotTest is a test case for snapshot recovery. It can be used for
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// simulating these scenarios:
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// (i) Geth restarts normally with valid legacy snapshot
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// (ii) Geth restarts normally with valid new-format snapshot
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// (iii) Geth restarts after the crash, with broken legacy snapshot
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// (iv) Geth restarts after the crash, with broken new-format snapshot
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// (v) Geth restarts normally, but it's requested to be rewound to a lower point via SetHead
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// (vi) Geth restarts normally with a stale snapshot
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type snapshotTest struct {
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legacy bool // Flag whether the loaded snapshot is in legacy format
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crash bool // Flag whether the Geth restarts from the previous crash
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gapped int // Number of blocks to insert without enabling snapshot
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setHead uint64 // Block number to set head back to
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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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}
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func (tt *snapshotTest) 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 < tt.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 tt.commitBlock > 0 {
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fmt.Fprintf(buffer, ", C%d", tt.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 tt.snapshotBlock > 0 {
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fmt.Fprintf(buffer, ", C%d", tt.snapshotBlock)
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}
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fmt.Fprint(buffer, "\n")
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if tt.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", tt.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 < tt.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", tt.expHeadHeader)
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fmt.Fprintf(buffer, "Expected head fast block: C%d\n", tt.expHeadFastBlock)
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if tt.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", tt.expHeadBlock)
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}
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if tt.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", tt.expSnapshotBottom)
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}
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return buffer.String()
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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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//
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// ------------------------------
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//
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : C8
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// Expected snapshot disk : G
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testSnapshot(t, &snapshotTest{
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legacy: false,
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crash: false,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 0,
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commitBlock: 0,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 8,
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expSnapshotBottom: 0, // Initial disk layer built from genesis
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})
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}
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// Tests a Geth restart with valid but "legacy" snapshot. Before the shutdown,
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// all snapshot journal will be persisted correctly. In this case no snapshot
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// recovery is required.
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func TestRestartWithLegacySnapshot(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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//
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// ------------------------------
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//
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : C8
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// Expected snapshot disk : G
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testSnapshot(t, &snapshotTest{
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legacy: true,
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crash: false,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 0,
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commitBlock: 0,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 8,
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expSnapshotBottom: 0, // Initial disk layer built from genesis
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})
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}
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// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
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// chain head should be rewound to the point with available state. And also the
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// new head should must be lower than disk layer. But there is no committed point
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// so the chain should be rewound to genesis and the disk layer should be left
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// for recovery.
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func TestNoCommitCrashWithNewSnapshot(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, C4
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//
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// CRASH
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//
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// ------------------------------
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//
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : G
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// Expected snapshot disk : C4
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testSnapshot(t, &snapshotTest{
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legacy: false,
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crash: true,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 4,
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commitBlock: 0,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 0,
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expSnapshotBottom: 4, // Last committed disk layer, wait recovery
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})
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}
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// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
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// chain head should be rewound to the point with available state. And also the
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// new head should must be lower than disk layer. But there is only a low committed
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// point so the chain should be rewound to committed point and the disk layer
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// should be left for recovery.
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func TestLowCommitCrashWithNewSnapshot(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, C2
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// Snapshot: G, C4
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//
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// CRASH
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//
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// ------------------------------
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//
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : C2
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// Expected snapshot disk : C4
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testSnapshot(t, &snapshotTest{
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legacy: false,
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crash: true,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 4,
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commitBlock: 2,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 2,
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expSnapshotBottom: 4, // Last committed disk layer, wait recovery
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})
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}
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// Tests a Geth was crashed and restarts with a broken snapshot. In this case
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// the chain head should be rewound to the point with available state. And also
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// the new head should must be lower than disk layer. But there is only a high
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// committed point so the chain should be rewound to genesis and the disk layer
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// should be left for recovery.
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func TestHighCommitCrashWithNewSnapshot(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, C6
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// Snapshot: G, C4
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//
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// CRASH
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//
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// ------------------------------
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//
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : G
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// Expected snapshot disk : C4
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testSnapshot(t, &snapshotTest{
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legacy: false,
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crash: true,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 4,
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commitBlock: 6,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 0,
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expSnapshotBottom: 4, // Last committed disk layer, wait recovery
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})
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}
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// Tests a Geth was crashed and restarts with a broken and "legacy format"
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// snapshot. In this case the entire legacy snapshot should be discared
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// and rebuild from the new chain head. The new head here refers to the
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// genesis because there is no committed point.
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func TestNoCommitCrashWithLegacySnapshot(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, C4
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//
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// CRASH
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//
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// ------------------------------
|
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//
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||
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// Expected in leveldb:
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// G->C1->C2->C3->C4->C5->C6->C7->C8
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//
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// Expected head header : C8
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// Expected head fast block: C8
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// Expected head block : G
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// Expected snapshot disk : G
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testSnapshot(t, &snapshotTest{
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legacy: true,
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crash: true,
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gapped: 0,
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setHead: 0,
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chainBlocks: 8,
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snapshotBlock: 4,
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commitBlock: 0,
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expCanonicalBlocks: 8,
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expHeadHeader: 8,
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expHeadFastBlock: 8,
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expHeadBlock: 0,
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expSnapshotBottom: 0, // Rebuilt snapshot from the latest HEAD(genesis)
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})
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}
|
||
|
|
|
||
|
|
// Tests a Geth was crashed and restarts with a broken and "legacy format"
|
||
|
|
// snapshot. In this case the entire legacy snapshot should be discared
|
||
|
|
// and rebuild from the new chain head. The new head here refers to the
|
||
|
|
// block-2 because it's committed into the disk.
|
||
|
|
func TestLowCommitCrashWithLegacySnapshot(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, C2
|
||
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// Snapshot: G, C4
|
||
|
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//
|
||
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// CRASH
|
||
|
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//
|
||
|
|
// ------------------------------
|
||
|
|
//
|
||
|
|
// Expected in leveldb:
|
||
|
|
// G->C1->C2->C3->C4->C5->C6->C7->C8
|
||
|
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//
|
||
|
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// Expected head header : C8
|
||
|
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// Expected head fast block: C8
|
||
|
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// Expected head block : C2
|
||
|
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// Expected snapshot disk : C2
|
||
|
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testSnapshot(t, &snapshotTest{
|
||
|
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legacy: true,
|
||
|
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crash: true,
|
||
|
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gapped: 0,
|
||
|
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setHead: 0,
|
||
|
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chainBlocks: 8,
|
||
|
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snapshotBlock: 4,
|
||
|
|
commitBlock: 2,
|
||
|
|
expCanonicalBlocks: 8,
|
||
|
|
expHeadHeader: 8,
|
||
|
|
expHeadFastBlock: 8,
|
||
|
|
expHeadBlock: 2,
|
||
|
|
expSnapshotBottom: 2, // Rebuilt snapshot from the latest HEAD
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// Tests a Geth was crashed and restarts with a broken and "legacy format"
|
||
|
|
// snapshot. In this case the entire legacy snapshot should be discared
|
||
|
|
// and rebuild from the new chain head.
|
||
|
|
//
|
||
|
|
// The new head here refers to the the genesis, the reason is:
|
||
|
|
// - the state of block-6 is committed into the disk
|
||
|
|
// - the legacy disk layer of block-4 is committed into the disk
|
||
|
|
// - the head is rewound the genesis in order to find an available
|
||
|
|
// state lower than disk layer
|
||
|
|
func TestHighCommitCrashWithLegacySnapshot(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 : G
|
||
|
|
testSnapshot(t, &snapshotTest{
|
||
|
|
legacy: true,
|
||
|
|
crash: true,
|
||
|
|
gapped: 0,
|
||
|
|
setHead: 0,
|
||
|
|
chainBlocks: 8,
|
||
|
|
snapshotBlock: 4,
|
||
|
|
commitBlock: 6,
|
||
|
|
expCanonicalBlocks: 8,
|
||
|
|
expHeadHeader: 8,
|
||
|
|
expHeadFastBlock: 8,
|
||
|
|
expHeadBlock: 0,
|
||
|
|
expSnapshotBottom: 0, // Rebuilt snapshot from the latest HEAD(genesis)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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
|
||
|
|
testSnapshot(t, &snapshotTest{
|
||
|
|
legacy: false,
|
||
|
|
crash: false,
|
||
|
|
gapped: 2,
|
||
|
|
setHead: 0,
|
||
|
|
chainBlocks: 8,
|
||
|
|
snapshotBlock: 0,
|
||
|
|
commitBlock: 0,
|
||
|
|
expCanonicalBlocks: 10,
|
||
|
|
expHeadHeader: 10,
|
||
|
|
expHeadFastBlock: 10,
|
||
|
|
expHeadBlock: 10,
|
||
|
|
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// Tests a Geth was running with leagcy 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 TestGappedLegacySnapshot(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
|
||
|
|
testSnapshot(t, &snapshotTest{
|
||
|
|
legacy: true,
|
||
|
|
crash: false,
|
||
|
|
gapped: 2,
|
||
|
|
setHead: 0,
|
||
|
|
chainBlocks: 8,
|
||
|
|
snapshotBlock: 0,
|
||
|
|
commitBlock: 0,
|
||
|
|
expCanonicalBlocks: 10,
|
||
|
|
expHeadHeader: 10,
|
||
|
|
expHeadFastBlock: 10,
|
||
|
|
expHeadBlock: 10,
|
||
|
|
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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
|
||
|
|
testSnapshot(t, &snapshotTest{
|
||
|
|
legacy: false,
|
||
|
|
crash: false,
|
||
|
|
gapped: 0,
|
||
|
|
setHead: 4,
|
||
|
|
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
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// Tests the Geth was running with snapshot(legacy-format) 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 TestSetHeadWithLegacySnapshot(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
|
||
|
|
testSnapshot(t, &snapshotTest{
|
||
|
|
legacy: true,
|
||
|
|
crash: false,
|
||
|
|
gapped: 0,
|
||
|
|
setHead: 4,
|
||
|
|
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
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func testSnapshot(t *testing.T, tt *snapshotTest) {
|
||
|
|
// It's hard to follow the test case, visualize the input
|
||
|
|
//log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
||
|
|
//fmt.Println(tt.dump())
|
||
|
|
|
||
|
|
// Create a temporary persistent database
|
||
|
|
datadir, err := ioutil.TempDir("", "")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to create temporary datadir: %v", err)
|
||
|
|
}
|
||
|
|
os.RemoveAll(datadir)
|
||
|
|
|
||
|
|
db, err := rawdb.NewLevelDBDatabaseWithFreezer(datadir, 0, 0, datadir, "")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to create persistent database: %v", err)
|
||
|
|
}
|
||
|
|
defer db.Close() // Might double close, should be fine
|
||
|
|
|
||
|
|
// Initialize a fresh chain
|
||
|
|
var (
|
||
|
|
genesis = new(Genesis).MustCommit(db)
|
||
|
|
engine = ethash.NewFullFaker()
|
||
|
|
gendb = rawdb.NewMemoryDatabase()
|
||
|
|
|
||
|
|
// Snapshot is enabled, the first snapshot is created from the Genesis.
|
||
|
|
// The snapshot memory allowance is 256MB, it means no snapshot flush
|
||
|
|
// will happen during the block insertion.
|
||
|
|
cacheConfig = defaultCacheConfig
|
||
|
|
)
|
||
|
|
chain, err := NewBlockChain(db, cacheConfig, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to create chain: %v", err)
|
||
|
|
}
|
||
|
|
blocks, _ := GenerateChain(params.TestChainConfig, genesis, engine, gendb, tt.chainBlocks, func(i int, b *BlockGen) {})
|
||
|
|
|
||
|
|
// Insert the blocks with configured settings.
|
||
|
|
var breakpoints []uint64
|
||
|
|
if tt.commitBlock > tt.snapshotBlock {
|
||
|
|
breakpoints = append(breakpoints, tt.snapshotBlock, tt.commitBlock)
|
||
|
|
} else {
|
||
|
|
breakpoints = append(breakpoints, tt.commitBlock, tt.snapshotBlock)
|
||
|
|
}
|
||
|
|
var startPoint uint64
|
||
|
|
for _, point := range breakpoints {
|
||
|
|
if _, err := chain.InsertChain(blocks[startPoint:point]); err != nil {
|
||
|
|
t.Fatalf("Failed to import canonical chain start: %v", err)
|
||
|
|
}
|
||
|
|
startPoint = point
|
||
|
|
|
||
|
|
if tt.commitBlock > 0 && tt.commitBlock == point {
|
||
|
|
chain.stateCache.TrieDB().Commit(blocks[point-1].Root(), true, nil)
|
||
|
|
}
|
||
|
|
if tt.snapshotBlock > 0 && tt.snapshotBlock == point {
|
||
|
|
if tt.legacy {
|
||
|
|
// Here we commit the snapshot disk root to simulate
|
||
|
|
// committing the legacy snapshot.
|
||
|
|
rawdb.WriteSnapshotRoot(db, blocks[point-1].Root())
|
||
|
|
} else {
|
||
|
|
chain.snaps.Cap(blocks[point-1].Root(), 0)
|
||
|
|
diskRoot, blockRoot := chain.snaps.DiskRoot(), blocks[point-1].Root()
|
||
|
|
if !bytes.Equal(diskRoot.Bytes(), blockRoot.Bytes()) {
|
||
|
|
t.Fatalf("Failed to flush disk layer change, want %x, got %x", blockRoot, diskRoot)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if _, err := chain.InsertChain(blocks[startPoint:]); err != nil {
|
||
|
|
t.Fatalf("Failed to import canonical chain tail: %v", err)
|
||
|
|
}
|
||
|
|
// Set the flag for writing legacy journal if ncessary
|
||
|
|
if tt.legacy {
|
||
|
|
chain.writeLegacyJournal = true
|
||
|
|
}
|
||
|
|
// Pull the plug on the database, simulating a hard crash
|
||
|
|
if tt.crash {
|
||
|
|
db.Close()
|
||
|
|
|
||
|
|
// Start a new blockchain back up and see where the repair leads us
|
||
|
|
db, err = rawdb.NewLevelDBDatabaseWithFreezer(datadir, 0, 0, datadir, "")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to reopen persistent database: %v", err)
|
||
|
|
}
|
||
|
|
defer db.Close()
|
||
|
|
|
||
|
|
// The interesting thing is: instead of start the blockchain after
|
||
|
|
// the crash, we do restart twice here: one after the crash and one
|
||
|
|
// after the normal stop. It's used to ensure the broken snapshot
|
||
|
|
// can be detected all the time.
|
||
|
|
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
chain.Stop()
|
||
|
|
|
||
|
|
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
defer chain.Stop()
|
||
|
|
} else if tt.gapped > 0 {
|
||
|
|
// Insert blocks without enabling snapshot if gapping is required.
|
||
|
|
chain.Stop()
|
||
|
|
|
||
|
|
gappedBlocks, _ := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], engine, gendb, tt.gapped, func(i int, b *BlockGen) {})
|
||
|
|
|
||
|
|
// Insert a few more blocks without enabling snapshot
|
||
|
|
var cacheConfig = &CacheConfig{
|
||
|
|
TrieCleanLimit: 256,
|
||
|
|
TrieDirtyLimit: 256,
|
||
|
|
TrieTimeLimit: 5 * time.Minute,
|
||
|
|
SnapshotLimit: 0,
|
||
|
|
}
|
||
|
|
chain, err = NewBlockChain(db, cacheConfig, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
chain.InsertChain(gappedBlocks)
|
||
|
|
chain.Stop()
|
||
|
|
|
||
|
|
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
defer chain.Stop()
|
||
|
|
} else if tt.setHead != 0 {
|
||
|
|
// Rewind the chain if setHead operation is required.
|
||
|
|
chain.SetHead(tt.setHead)
|
||
|
|
chain.Stop()
|
||
|
|
|
||
|
|
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
defer chain.Stop()
|
||
|
|
} else {
|
||
|
|
chain.Stop()
|
||
|
|
// Restart the chain normally
|
||
|
|
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Failed to recreate chain: %v", err)
|
||
|
|
}
|
||
|
|
defer chain.Stop()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Iterate over all the remaining blocks and ensure there are no gaps
|
||
|
|
verifyNoGaps(t, chain, true, blocks)
|
||
|
|
verifyCutoff(t, chain, true, blocks, tt.expCanonicalBlocks)
|
||
|
|
|
||
|
|
if head := chain.CurrentHeader(); head.Number.Uint64() != tt.expHeadHeader {
|
||
|
|
t.Errorf("Head header mismatch: have %d, want %d", head.Number, tt.expHeadHeader)
|
||
|
|
}
|
||
|
|
if head := chain.CurrentFastBlock(); head.NumberU64() != tt.expHeadFastBlock {
|
||
|
|
t.Errorf("Head fast block mismatch: have %d, want %d", head.NumberU64(), tt.expHeadFastBlock)
|
||
|
|
}
|
||
|
|
if head := chain.CurrentBlock(); head.NumberU64() != tt.expHeadBlock {
|
||
|
|
t.Errorf("Head block mismatch: have %d, want %d", head.NumberU64(), tt.expHeadBlock)
|
||
|
|
}
|
||
|
|
// Check the disk layer, ensure they are matched
|
||
|
|
block := chain.GetBlockByNumber(tt.expSnapshotBottom)
|
||
|
|
if block == nil {
|
||
|
|
t.Errorf("The correspnding block[%d] of snapshot disk layer is missing", tt.expSnapshotBottom)
|
||
|
|
} else if !bytes.Equal(chain.snaps.DiskRoot().Bytes(), block.Root().Bytes()) {
|
||
|
|
t.Errorf("The snapshot disk layer root is incorrect, want %x, get %x", block.Root(), chain.snaps.DiskRoot())
|
||
|
|
}
|
||
|
|
}
|