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Jonathan Gray commented on HBASE-4528: -------------------------------------- @Mubarek, since it's a performance optimization and new feature, it's not going to be committed into the 90/92 branches. That being said, this patch could be backported if someone wanted to use it on a 92 branch (90 might be significantly more difficult, not sure). > 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: 4528-trunk-v9.txt, 4528-trunk.txt, > 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