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Merge pull request #10526 from jingyih/improve_mvcc_index_concurrency

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mvcc: release lock early when traversing index
This commit is contained in:
Xiang Li 2019-03-06 15:48:48 -08:00 committed by GitHub
commit 949bcbddbe
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1 changed files with 3 additions and 2 deletions
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5
mvcc/index.go
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@ -92,9 +92,10 @@ func (ti *treeIndex) visit(key, end []byte, f func(ki *keyIndex)) {
keyi, endi := &keyIndex{key: key}, &keyIndex{key: end}
ti.RLock()
defer ti.RUnlock()
clone := ti.tree.Clone()
ti.RUnlock()
ti.tree.AscendGreaterOrEqual(keyi, func(item btree.Item) bool {
clone.AscendGreaterOrEqual(keyi, func(item btree.Item) bool {
if len(endi.key) > 0 && !item.Less(endi) {
return false
}