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core: reorg logs crashed, add a check for corner cases

This commit is contained in:
Péter Szilágyi 2017-03-03 09:54:13 +02:00
parent faf713632c
commit a38e1a9c00
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1 changed files with 9 additions and 6 deletions
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15
core/blockchain.go
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@ -1145,13 +1145,16 @@ func (self *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
}
}
// Ensure the user sees large reorgs
logFn := log.Debug
if len(oldChain) > 63 {
logFn = log.Warn
if len(oldChain) > 0 && len(newChain) > 0 {
logFn := log.Debug
if len(oldChain) > 63 {
logFn = log.Warn
}
logFn("Chain split detected", "number", commonBlock.Number(), "hash", commonBlock.Hash(),
"drop", len(oldChain), "dropfrom", oldChain[0].Hash(), "add", len(newChain), "addfrom", newChain[0].Hash())
} else {
log.Error("Impossible reorg, please file an issue", "oldnum", oldBlock.Number(), "oldhash", oldBlock.Hash(), "newnum", newBlock.Number(), "newhash", newBlock.Hash())
}
logFn("Chain split detected", "number", commonBlock.Number(), "hash", commonBlock.Hash(),
"drop", len(oldChain), "dropfrom", oldChain[0].Hash(), "add", len(newChain), "addfrom", newChain[0].Hash())
var addedTxs types.Transactions
// insert blocks. Order does not matter. Last block will be written in ImportChain itself which creates the new head properly
for _, block := range newChain {