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Chia-Ping Tsai commented on HBASE-20352: ---------------------------------------- +1. Both of docs enhancement and the potential bug (should we shutdown the pool when stopping the master?) can be addressed in follow-up. I feel this patch is useful to large cluster since the elapsed time of clearing the old files is significant. That is why it pays to doc this nice improvement to our hbase book. > [Chore] Backport HBASE-18309 to branch-1 > ---------------------------------------- > > Key: HBASE-20352 > URL: https://issues.apache.org/jira/browse/HBASE-20352 > Project: HBase > Issue Type: Improvement > Reporter: Reid Chan > Assignee: Reid Chan > Priority: Major > Attachments: HBASE-20352.branch-1.001.patch > > > Using multiple threads to scan directory and to clean old WALs -- This message was sent by Atlassian JIRA (v7.6.3#76005)