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Ted Yu commented on HBASE-4528: ------------------------------- I am fine with the current form of this feature. Depending on how often memstoreRollback is executed in production, we can formulate the next step with another JIRA. Thanks for the nice job done, Dhruba. > The put operation can release the rowlock before sync-ing the Hlog > ------------------------------------------------------------------ > > Key: HBASE-4528 > URL: https://issues.apache.org/jira/browse/HBASE-4528 > Project: HBase > Issue Type: Improvement > Components: regionserver > Reporter: dhruba borthakur > Assignee: dhruba borthakur > Fix For: 0.94.0 > > Attachments: HBASE-4528-Trunk-FINAL.patch, appendNoSync5.txt, > appendNoSyncPut1.txt, appendNoSyncPut2.txt, appendNoSyncPut3.txt, > appendNoSyncPut4.txt, appendNoSyncPut5.txt, appendNoSyncPut6.txt, > appendNoSyncPut7.txt, appendNoSyncPut8.txt > > > This allows for better throughput when there are hot rows. A single row > update improves from 100 puts/sec/server to 5000 puts/sec/server. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira