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authorMark <markya0616@gmail.com>2017-07-31 17:59:07 +0800
committerFelix Lange <fjl@users.noreply.github.com>2017-07-31 17:59:07 +0800
commit4f9789b28d570ccd234640f1c13c08cb9f16f4ee (patch)
tree40b753aaaca5877575bd631acba88818e6997a24 /core
parentee748d14512cbaa08d9734e43a52fb771995ce31 (diff)
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core: avoid write existing block again (#14849)
Diffstat (limited to 'core')
-rw-r--r--core/blockchain.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/core/blockchain.go b/core/blockchain.go
index bb1c14f43..3fb8be15f 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -827,6 +827,11 @@ func (bc *BlockChain) WriteBlock(block *types.Block) (status WriteStatus, err er
bc.mu.Lock()
defer bc.mu.Unlock()
+ if bc.HasBlock(block.Hash()) {
+ log.Trace("Block existed", "hash", block.Hash())
+ return
+ }
+
localTd := bc.GetTd(bc.currentBlock.Hash(), bc.currentBlock.NumberU64())
externTd := new(big.Int).Add(block.Difficulty(), ptd)