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Chia-Ping Tsai commented on HBASE-18019: ---------------------------------------- I will fix this after resolving HBASE-17887. Otherwise, the TestAcid* will fail and confuse us. > Clear redundant memstore scanners > --------------------------------- > > Key: HBASE-18019 > URL: https://issues.apache.org/jira/browse/HBASE-18019 > Project: HBase > Issue Type: Improvement > Affects Versions: 2.0.0 > Reporter: Chia-Ping Tsai > Assignee: Chia-Ping Tsai > Fix For: 2.0.0 > > > The HBASE-17655 remove the MemStoreScanner and it causes that the > MemStore#getScanner(readpt) returns multi KeyValueScanner which consist of > active, snapshot and pipeline. But StoreScanner only remove one mem scanner > when refreshing current scanners. > {code} > for (int i = 0; i < currentScanners.size(); i++) { > if (!currentScanners.get(i).isFileScanner()) { > currentScanners.remove(i); > break; > } > } > {code} > The older scanners kept in the StoreScanner will hinder GC from releasing > memory and lead to multiple scans on the same data. > -- This message was sent by Atlassian JIRA (v6.3.15#6346)