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core: add : impossible reorg block dump #754

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merged 5 commits into from
Feb 26, 2023
Merged

core: add : impossible reorg block dump #754

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140d87c
add : impossible reorg block dump
0xsharma Feb 23, 2023
d97e774
chg : 3 seperate files for impossoble reorg dump
0xsharma Feb 23, 2023
f736533
add : use exportBlocks method and RLP blocks before writing
0xsharma Feb 23, 2023
3a20d12
chg : small changes
0xsharma Feb 23, 2023
ae5f124
Merge branch 'master' into shivam/dump-impossible-reorg
0xsharma Feb 24, 2023
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16 changes: 16 additions & 0 deletions core/blockchain.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@ import (
"fmt"
"io"
"math/big"
"os"
"path/filepath"
"sort"
"sync"
"sync/atomic"
Expand Down Expand Up @@ -2191,6 +2193,20 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
} else {
// len(newChain) == 0 && len(oldChain) > 0
// rewind the canonical chain to a lower point.
out := fmt.Sprintf("oldChain: %+v,\n\noldBlock : %+v,\n\nnewBlock : %+v", oldChain, oldBlock, newBlock)
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home, err := os.UserHomeDir()
if err != nil {
log.Error("Impossible reorg : Unable to get user home dir", "Error", err)
}

outPath := filepath.Join(home, fmt.Sprintf("impossibleReorg-%v.txt", time.Now().Format(time.RFC3339)))

err = os.WriteFile(outPath, []byte(out), 0600)
if err != nil {
log.Error("Impossible reorg : Unable to write to file", "Error", err)
}

log.Error("Impossible reorg, please file an issue", "oldnum", oldBlock.Number(), "oldhash", oldBlock.Hash(), "oldblocks", len(oldChain), "newnum", newBlock.Number(), "newhash", newBlock.Hash(), "newblocks", len(newChain))
}
// Insert the new chain(except the head block(reverse order)),
Expand Down