* core: define and test chain reparation cornercases * core: write up a variety of set-head tests * core, eth: unify chain rollbacks, handle all the cases * core: make linter smile * core: remove commented out legacy code * core, eth/downloader: fix review comments * core: revert a removed recovery mechanism
		
			
				
	
	
		
			1654 lines
		
	
	
		
			49 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			1654 lines
		
	
	
		
			49 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2020 The go-ethereum Authors
 | |
| // This file is part of the go-ethereum library.
 | |
| //
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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
 | |
| // 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 doesn't leave
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| // the database in some strange state with gaps in the chain, nor with block data
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| // dangling in the future.
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| 
 | |
| package core
 | |
| 
 | |
| import (
 | |
| 	"io/ioutil"
 | |
| 	"math/big"
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| 	"os"
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| 	"testing"
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| 
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| 	"github.com/ethereum/go-ethereum/common"
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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/params"
 | |
| )
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| 
 | |
| // Tests a recovery for a short canonical chain where a recent block was already
 | |
| // committed to disk and then the process crashed. In this case we expect the full
 | |
| // chain to be rolled back to the committed block, but the chain data itself left
 | |
| // in the database for replaying.
 | |
| func TestShortRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// 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     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain where the fast sync pivot point was
 | |
| // already committed, after which the process crashed. In this case we expect the full
 | |
| // chain to be rolled back to the committed block, but the chain data itself left in
 | |
| // the database for replaying.
 | |
| func TestShortFastSyncedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : 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     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
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| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
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| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain where the fast sync pivot point was
 | |
| // not yet committed, but the process crashed. In this case we expect the chain to
 | |
| // detect that it was fast syncing and not delete anything, since we can just pick
 | |
| // up directly where we left off.
 | |
| func TestShortFastSyncingRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G
 | |
| 	// Pivot : 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
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
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| 		sidechainBlocks:    0,
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| 		freezeThreshold:    16,
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| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
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| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
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| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where a
 | |
| // recent block was already committed to disk and then the process crashed. In this
 | |
| // test scenario the side chain is below the committed block. In this case we expect
 | |
| // the canonical chain to be rolled back to the committed block, but the chain data
 | |
| // itself left in the database for replaying.
 | |
| func TestShortOldForkedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
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| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 3,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where
 | |
| // the fast sync pivot point was already committed to disk and then the process
 | |
| // crashed. In this test scenario the side chain is below the committed block. In
 | |
| // this case we expect the canonical chain to be rolled back to the committed block,
 | |
| // but the chain data itself left in the database for replaying.
 | |
| func TestShortOldForkedFastSyncedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
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| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 3,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where
 | |
| // the fast sync pivot point was not yet committed, but the process crashed. In this
 | |
| // test scenario the side chain is below the committed block. In this case we expect
 | |
| // the chain to detect that it was fast syncing and not delete anything, since we
 | |
| // can just pick up directly where we left off.
 | |
| func TestShortOldForkedFastSyncingRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 3,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where a
 | |
| // recent block was already committed to disk and then the process crashed. In this
 | |
| // test scenario the side chain reaches above the committed block. In this case we
 | |
| // expect the canonical chain to be rolled back to the committed block, but the
 | |
| // chain data itself left in the database for replaying.
 | |
| func TestShortNewlyForkedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    6,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 6,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where
 | |
| // the fast sync pivot point was already committed to disk and then the process
 | |
| // crashed. In this test scenario the side chain reaches above the committed block.
 | |
| // In this case we expect the canonical chain to be rolled back to the committed
 | |
| // block, but the chain data itself left in the database for replaying.
 | |
| func TestShortNewlyForkedFastSyncedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    6,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 6,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a shorter side chain, where
 | |
| // the fast sync pivot point was not yet committed, but the process crashed. In
 | |
| // this test scenario the side chain reaches above the committed block. In this
 | |
| // case we expect the chain to detect that it was fast syncing and not delete
 | |
| // anything, since we can just pick up directly where we left off.
 | |
| func TestShortNewlyForkedFastSyncingRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    6,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 6,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a longer side chain, where a
 | |
| // recent block was already committed to disk and then the process crashed. In this
 | |
| // case we expect the canonical chain to be rolled back to the committed block, but
 | |
| // the chain data itself left in the database for replaying.
 | |
| func TestShortReorgedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    10,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 10,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a longer side chain, where
 | |
| // the fast sync pivot point was already committed to disk and then the process
 | |
| // crashed. In this case we expect the canonical chain to be rolled back to the
 | |
| // committed block, but the chain data itself left in the database for replaying.
 | |
| func TestShortReorgedFastSyncedRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    10,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 10,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a short canonical chain and a longer side chain, where
 | |
| // the fast sync pivot point was not yet committed, but the process crashed. In
 | |
| // this case we expect the chain to detect that it was fast syncing and not delete
 | |
| // anything, since we can just pick up directly where we left off.
 | |
| func TestShortReorgedFastSyncingRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Frozen: none
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
 | |
| 	//
 | |
| 	// Expected head header    : C8
 | |
| 	// Expected head fast block: C8
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    8,
 | |
| 		sidechainBlocks:    10,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 8,
 | |
| 		expSidechainBlocks: 10,
 | |
| 		expFrozen:          0,
 | |
| 		expHeadHeader:      8,
 | |
| 		expHeadFastBlock:   8,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where a recent
 | |
| // block - newer than the ancient limit - was already committed to disk and then
 | |
| // the process crashed. In this case we expect the chain to be rolled back to the
 | |
| // committed block, with everything afterwads kept as fast sync data.
 | |
| func TestLongShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where a recent
 | |
| // block - older than the ancient limit - was already committed to disk and then
 | |
| // the process crashed. In this case we expect the chain to be rolled back to the
 | |
| // committed block, with everything afterwads deleted.
 | |
| func TestLongDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where the fast
 | |
| // sync pivot point - newer than the ancient limit - was already committed, after
 | |
| // which the process crashed. In this case we expect the chain to be rolled back
 | |
| // to the committed block, with everything afterwads kept as fast sync data.
 | |
| func TestLongFastSyncedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where the fast
 | |
| // sync pivot point - older than the ancient limit - was already committed, after
 | |
| // which the process crashed. In this case we expect the chain to be rolled back
 | |
| // to the committed block, with everything afterwads deleted.
 | |
| func TestLongFastSyncedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where the fast
 | |
| // sync pivot point - older than the ancient limit - was not yet committed, but the
 | |
| // process crashed. In this case we expect the chain to detect that it was fast
 | |
| // syncing and not delete anything, since we can just pick up directly where we
 | |
| // left off.
 | |
| func TestLongFastSyncingShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks where the fast
 | |
| // sync pivot point - newer than the ancient limit - was not yet committed, but the
 | |
| // process crashed. In this case we expect the chain to detect that it was fast
 | |
| // syncing and not delete anything, since we can just pick up directly where we
 | |
| // left off.
 | |
| func TestLongFastSyncingDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C8)->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24
 | |
| 	//
 | |
| 	// Expected head header    : C24
 | |
| 	// Expected head fast block: C24
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    0,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 24,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          9,
 | |
| 		expHeadHeader:      24,
 | |
| 		expHeadFastBlock:   24,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where a recent block - newer than the ancient limit - was already
 | |
| // committed to disk and then the process crashed. In this test scenario the side
 | |
| // chain is below the committed block. In this case we expect the chain to be
 | |
| // rolled back to the committed block, with everything afterwads kept as fast
 | |
| // sync data; the side chain completely nuked by the freezer.
 | |
| func TestLongOldForkedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where a recent block - older than the ancient limit - was already
 | |
| // committed to disk and then the process crashed. In this test scenario the side
 | |
| // chain is below the committed block. In this case we expect the canonical chain
 | |
| // to be rolled back to the committed block, with everything afterwads deleted;
 | |
| // the side chain completely nuked by the freezer.
 | |
| func TestLongOldForkedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - newer than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this test scenario
 | |
| // the side chain is below the committed block. In this case we expect the chain
 | |
| // to be rolled back to the committed block, with everything afterwads kept as
 | |
| // fast sync data; the side chain completely nuked by the freezer.
 | |
| func TestLongOldForkedFastSyncedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this test scenario
 | |
| // the side chain is below the committed block. In this case we expect the canonical
 | |
| // chain to be rolled back to the committed block, with everything afterwads deleted;
 | |
| // the side chain completely nuked by the freezer.
 | |
| func TestLongOldForkedFastSyncedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this test scenario the side
 | |
| // chain is below the committed block. In this case we expect the chain to detect
 | |
| // that it was fast syncing and not delete anything. The side chain is completely
 | |
| // nuked by the freezer.
 | |
| func TestLongOldForkedFastSyncingShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this test scenario the side
 | |
| // chain is below the committed block. In this case we expect the chain to detect
 | |
| // that it was fast syncing and not delete anything. The side chain is completely
 | |
| // nuked by the freezer.
 | |
| func TestLongOldForkedFastSyncingDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C8)->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24
 | |
| 	//
 | |
| 	// Expected head header    : C24
 | |
| 	// Expected head fast block: C24
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    3,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 24,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          9,
 | |
| 		expHeadHeader:      24,
 | |
| 		expHeadFastBlock:   24,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where a recent block - newer than the ancient limit - was already
 | |
| // committed to disk and then the process crashed. In this test scenario the side
 | |
| // chain is above the committed block. In this case we expect the chain to be
 | |
| // rolled back to the committed block, with everything afterwads kept as fast
 | |
| // sync data; the side chain completely nuked by the freezer.
 | |
| func TestLongNewerForkedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where a recent block - older than the ancient limit - was already
 | |
| // committed to disk and then the process crashed. In this test scenario the side
 | |
| // chain is above the committed block. In this case we expect the canonical chain
 | |
| // to be rolled back to the committed block, with everything afterwads deleted;
 | |
| // the side chain completely nuked by the freezer.
 | |
| func TestLongNewerForkedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - newer than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this test scenario
 | |
| // the side chain is above the committed block. In this case we expect the chain
 | |
| // to be rolled back to the committed block, with everything afterwads kept as fast
 | |
| // sync data; the side chain completely nuked by the freezer.
 | |
| func TestLongNewerForkedFastSyncedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this test scenario
 | |
| // the side chain is above the committed block. In this case we expect the canonical
 | |
| // chain to be rolled back to the committed block, with everything afterwads deleted;
 | |
| // the side chain completely nuked by the freezer.
 | |
| func TestLongNewerForkedFastSyncedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this test scenario the side
 | |
| // chain is above the committed block. In this case we expect the chain to detect
 | |
| // that it was fast syncing and not delete anything. The side chain is completely
 | |
| // nuked by the freezer.
 | |
| func TestLongNewerForkedFastSyncingShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a shorter
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this test scenario the side
 | |
| // chain is above the committed block. In this case we expect the chain to detect
 | |
| // that it was fast syncing and not delete anything. The side chain is completely
 | |
| // nuked by the freezer.
 | |
| func TestLongNewerForkedFastSyncingDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C8)->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24
 | |
| 	//
 | |
| 	// Expected head header    : C24
 | |
| 	// Expected head fast block: C24
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    12,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 24,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          9,
 | |
| 		expHeadHeader:      24,
 | |
| 		expHeadFastBlock:   24,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer side
 | |
| // chain, where a recent block - newer than the ancient limit - was already committed
 | |
| // to disk and then the process crashed. In this case we expect the chain to be
 | |
| // rolled back to the committed block, with everything afterwads kept as fast sync
 | |
| // data. The side chain completely nuked by the freezer.
 | |
| func TestLongReorgedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer side
 | |
| // chain, where a recent block - older than the ancient limit - was already committed
 | |
| // to disk and then the process crashed. In this case we expect the canonical chains
 | |
| // to be rolled back to the committed block, with everything afterwads deleted. The
 | |
| // side chain completely nuked by the freezer.
 | |
| func TestLongReorgedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : none
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         nil,
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer
 | |
| // side chain, where the fast sync pivot point - newer than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this case we
 | |
| // expect the chain to be rolled back to the committed block, with everything
 | |
| // afterwads kept as fast sync data. The side chain completely nuked by the
 | |
| // freezer.
 | |
| func TestLongReorgedFastSyncedShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was already committed to disk and then the process crashed. In this case we
 | |
| // expect the canonical chains to be rolled back to the committed block, with
 | |
| // everything afterwads deleted. The side chain completely nuked by the freezer.
 | |
| func TestLongReorgedFastSyncedDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G, C4
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4
 | |
| 	//
 | |
| 	// Expected in leveldb: none
 | |
| 	//
 | |
| 	// Expected head header    : C4
 | |
| 	// Expected head fast block: C4
 | |
| 	// Expected head block     : C4
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        4,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 4,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          5,
 | |
| 		expHeadHeader:      4,
 | |
| 		expHeadFastBlock:   4,
 | |
| 		expHeadBlock:       4,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer
 | |
| // side chain, where the fast sync pivot point - newer than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this case we expect the
 | |
| // chain to detect that it was fast syncing and not delete anything, since we
 | |
| // can just pick up directly where we left off.
 | |
| func TestLongReorgedFastSyncingShallowRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C2)->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18
 | |
| 	//
 | |
| 	// Expected head header    : C18
 | |
| 	// Expected head fast block: C18
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    18,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 18,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          3,
 | |
| 		expHeadHeader:      18,
 | |
| 		expHeadFastBlock:   18,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| // Tests a recovery for a long canonical chain with frozen blocks and a longer
 | |
| // side chain, where the fast sync pivot point - older than the ancient limit -
 | |
| // was not yet committed, but the process crashed. In this case we expect the
 | |
| // chain to detect that it was fast syncing and not delete anything, since we
 | |
| // can just pick up directly where we left off.
 | |
| func TestLongReorgedFastSyncingDeepRepair(t *testing.T) {
 | |
| 	// Chain:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
 | |
| 	//   └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
 | |
| 	//
 | |
| 	// Frozen:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Commit: G
 | |
| 	// Pivot : C4
 | |
| 	//
 | |
| 	// CRASH
 | |
| 	//
 | |
| 	// ------------------------------
 | |
| 	//
 | |
| 	// Expected in freezer:
 | |
| 	//   G->C1->C2->C3->C4->C5->C6->C7->C8
 | |
| 	//
 | |
| 	// Expected in leveldb:
 | |
| 	//   C8)->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24
 | |
| 	//
 | |
| 	// Expected head header    : C24
 | |
| 	// Expected head fast block: C24
 | |
| 	// Expected head block     : G
 | |
| 	testRepair(t, &rewindTest{
 | |
| 		canonicalBlocks:    24,
 | |
| 		sidechainBlocks:    26,
 | |
| 		freezeThreshold:    16,
 | |
| 		commitBlock:        0,
 | |
| 		pivotBlock:         uint64ptr(4),
 | |
| 		expCanonicalBlocks: 24,
 | |
| 		expSidechainBlocks: 0,
 | |
| 		expFrozen:          9,
 | |
| 		expHeadHeader:      24,
 | |
| 		expHeadFastBlock:   24,
 | |
| 		expHeadBlock:       0,
 | |
| 	})
 | |
| }
 | |
| 
 | |
| func testRepair(t *testing.T, tt *rewindTest) {
 | |
| 	// 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(true))
 | |
| 
 | |
| 	// 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()
 | |
| 	)
 | |
| 	chain, err := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
 | |
| 	if err != nil {
 | |
| 		t.Fatalf("Failed to create chain: %v", err)
 | |
| 	}
 | |
| 	// If sidechain blocks are needed, make a light chain and import it
 | |
| 	var sideblocks types.Blocks
 | |
| 	if tt.sidechainBlocks > 0 {
 | |
| 		sideblocks, _ = GenerateChain(params.TestChainConfig, genesis, engine, rawdb.NewMemoryDatabase(), tt.sidechainBlocks, func(i int, b *BlockGen) {
 | |
| 			b.SetCoinbase(common.Address{0x01})
 | |
| 		})
 | |
| 		if _, err := chain.InsertChain(sideblocks); err != nil {
 | |
| 			t.Fatalf("Failed to import side chain: %v", err)
 | |
| 		}
 | |
| 	}
 | |
| 	canonblocks, _ := GenerateChain(params.TestChainConfig, genesis, engine, rawdb.NewMemoryDatabase(), tt.canonicalBlocks, func(i int, b *BlockGen) {
 | |
| 		b.SetCoinbase(common.Address{0x02})
 | |
| 		b.SetDifficulty(big.NewInt(1000000))
 | |
| 	})
 | |
| 	if _, err := chain.InsertChain(canonblocks[:tt.commitBlock]); err != nil {
 | |
| 		t.Fatalf("Failed to import canonical chain start: %v", err)
 | |
| 	}
 | |
| 	if tt.commitBlock > 0 {
 | |
| 		chain.stateCache.TrieDB().Commit(canonblocks[tt.commitBlock-1].Root(), true, nil)
 | |
| 	}
 | |
| 	if _, err := chain.InsertChain(canonblocks[tt.commitBlock:]); err != nil {
 | |
| 		t.Fatalf("Failed to import canonical chain tail: %v", err)
 | |
| 	}
 | |
| 	// Force run a freeze cycle
 | |
| 	type freezer interface {
 | |
| 		Freeze(threshold uint64)
 | |
| 		Ancients() (uint64, error)
 | |
| 	}
 | |
| 	db.(freezer).Freeze(tt.freezeThreshold)
 | |
| 
 | |
| 	// Set the simulated pivot block
 | |
| 	if tt.pivotBlock != nil {
 | |
| 		rawdb.WriteLastPivotNumber(db, *tt.pivotBlock)
 | |
| 	}
 | |
| 	// Pull the plug on the database, simulating a hard crash
 | |
| 	db.Close()
 | |
| 
 | |
| 	// Start a new blockchain back up and see where the repait 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()
 | |
| 
 | |
| 	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, canonblocks)
 | |
| 	verifyNoGaps(t, chain, false, sideblocks)
 | |
| 	verifyCutoff(t, chain, true, canonblocks, tt.expCanonicalBlocks)
 | |
| 	verifyCutoff(t, chain, false, sideblocks, tt.expSidechainBlocks)
 | |
| 
 | |
| 	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)
 | |
| 	}
 | |
| 	if frozen, err := db.(freezer).Ancients(); err != nil {
 | |
| 		t.Errorf("Failed to retrieve ancient count: %v\n", err)
 | |
| 	} else if int(frozen) != tt.expFrozen {
 | |
| 		t.Errorf("Frozen block count mismatch: have %d, want %d", frozen, tt.expFrozen)
 | |
| 	}
 | |
| }
 |