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https://issues.apache.org/jira/browse/HBASE-4528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13138491#comment-13138491
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Ted Yu commented on HBASE-4528:
-------------------------------
Using TRUNK, I wasn't able to reproduce test failure for
TestDistributedLogSplitting:
{code}
622 ~/runtest.sh 3 TestDistributedLogSplitting#testWorkerAbort
623 ~/runtest.sh 3 TestDistributedLogSplitting#testWorkerAbort
624 ~/runtest.sh 3 TestDistributedLogSplitting
{code}
The changes to HLogSplitter.java can be omitted at time of integration.
> 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.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.
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