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libs/db: close batch (#3397)

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ClevelDB requires closing when WriteBatch is no longer needed, https://godoc.org/github.com/jmhodges/levigo#WriteBatch.Close

Fixes the memory leak in https://github.com/cosmos/cosmos-sdk/issues/3842
This commit is contained in:
Yumin Xia
2019-03-10 12:46:32 +04:00
committed by Anton Kaliaev
parent 90794260bc
commit b021f1e505
10 changed files with 32 additions and 0 deletions
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lite/dbprovider.go
+1
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@@ -54,6 +54,7 @@ func (dbp *DBProvider) SaveFullCommit(fc FullCommit) error {
dbp.logger.Info("DBProvider.SaveFullCommit()...", "fc", fc)
batch := dbp.db.NewBatch()
defer batch.Close()
// Save the fc.validators.
// We might be overwriting what we already have, but