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jirapos...@reviews.apache.org commented on HBASE-4528: ------------------------------------------------------ bq. On 2011-10-17 08:46:53, ramkrishna vasudevan wrote: bq. > @Dhruba bq. > Any figures to know the improvement in write performance? I had updated the performance numbers in the JIRA comments. Please let me know if they are adequate. - Dhruba ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/2141/#review2617 ----------------------------------------------------------- On 2011-10-17 04:39:55, Dhruba Borthakur wrote: bq. bq. ----------------------------------------------------------- bq. This is an automatically generated e-mail. To reply, visit: bq. https://reviews.apache.org/r/2141/ bq. ----------------------------------------------------------- bq. bq. (Updated 2011-10-17 04:39:55) bq. bq. bq. Review request for hbase. bq. bq. bq. Summary bq. ------- bq. bq. The changes the multiPut operation so that the sync to the wal occurs outside the rowlock. bq. bq. This enhancement is done only to HRegion.mut(Put[]) because this is the only method that gets invoked from an application. The HRegion.put(Put) is used only by unit tests and should possibly be deprecated. bq. bq. bq. This addresses bug HBASE-4528. bq. https://issues.apache.org/jira/browse/HBASE-4528 bq. bq. bq. Diffs bq. ----- bq. bq. /src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java 1184991 bq. /src/main/java/org/apache/hadoop/hbase/regionserver/KeyValueSkipListSet.java 1184991 bq. /src/main/java/org/apache/hadoop/hbase/regionserver/MemStore.java 1184991 bq. /src/main/java/org/apache/hadoop/hbase/regionserver/ReadWriteConsistencyControl.java 1184991 bq. /src/main/java/org/apache/hadoop/hbase/regionserver/Store.java 1184991 bq. /src/main/java/org/apache/hadoop/hbase/regionserver/StoreFlusher.java 1184991 bq. /src/test/java/org/apache/hadoop/hbase/regionserver/TestParallelPut.java PRE-CREATION bq. /src/test/java/org/apache/hadoop/hbase/regionserver/TestStore.java 1184991 bq. /src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestLogRolling.java 1184991 bq. bq. Diff: https://reviews.apache.org/r/2141/diff bq. bq. bq. Testing bq. ------- bq. bq. I ran TestLogRolling over and over again, about 50 times, not failed a single time. bq. bq. bq. Thanks, bq. bq. Dhruba bq. bq. > 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: appendNoSync5.txt, appendNoSyncPut1.txt, > appendNoSyncPut2.txt, appendNoSyncPut3.txt, appendNoSyncPut4.txt, > appendNoSyncPut5.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