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This commit is contained in:
Jae Kwon
2018-05-15 08:48:27 -07:00
parent 4851653d8e
commit e1a3f16fa4
2 changed files with 49 additions and 36 deletions
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25
consensus/state.go
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@ -1210,23 +1210,28 @@ func (cs *ConsensusState) finalizeCommit(height int64) {
fail.Fail() // XXX
// Finish writing to the WAL for this height.
// NOTE: If we fail before writing this, we'll never write it,
// and just recover by running ApplyBlock in the Handshake.
// If we moved it before persisting the block, we'd have to allow
// WAL replay for blocks with an #ENDHEIGHT
// As is, ConsensusState should not be started again
// until we successfully call ApplyBlock (ie. here or in Handshake after restart)
// Write EndHeightMessage{} for this height, implying that the blockstore
// has saved the block.
//
// If we crash before writing this EndHeightMessage{}, we will recover by
// running ApplyBlock during the ABCI handshake when we restart. If we
// didn't save the block to the blockstore before writing
// EndHeightMessage{}, we'd have to change WAL replay -- currently it
// complains about replaying for heights where an #ENDHEIGHT entry already
// exists.
//
// Either way, the ConsensusState should not be resumed until we
// successfully call ApplyBlock (ie. later here, or in Handshake after
// restart).
cs.wal.Save(EndHeightMessage{height})
fail.Fail() // XXX
// Create a copy of the state for staging
// and an event cache for txs
// Create a copy of the state for staging and an event cache for txs.
stateCopy := cs.state.Copy()
// Execute and commit the block, update and save the state, and update the mempool.
// NOTE: the block.AppHash wont reflect these txs until the next block
// NOTE The block.AppHash wont reflect these txs until the next block.
var err error
stateCopy, err = cs.blockExec.ApplyBlock(stateCopy, types.BlockID{block.Hash(), blockParts.Header()}, block)
if err != nil {