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Hadoop QA commented on HBASE-3614: ---------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12523401/HBASE-3614-8.patch against trunk revision . +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. -1 findbugs. The patch appears to introduce 8 new Findbugs (version 1.3.9) warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed these unit tests: Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/1582//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/1582//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/1582//console This message is automatically generated. > Expose per-region request rate metrics > -------------------------------------- > > Key: HBASE-3614 > URL: https://issues.apache.org/jira/browse/HBASE-3614 > Project: HBase > Issue Type: Improvement > Components: metrics, regionserver > Reporter: Gary Helmling > Assignee: Elliott Clark > Priority: Minor > Attachments: HBASE-3614-0.patch, HBASE-3614-1.patch, > HBASE-3614-2.patch, HBASE-3614-3.patch, HBASE-3614-4.patch, > HBASE-3614-5.patch, HBASE-3614-6.patch, HBASE-3614-7.patch, > HBASE-3614-8.patch, Screen Shot 2012-04-17 at 2.41.27 PM.png > > > We currently export metrics on request rates for each region server, and this > can help with identifying uneven load at a high level. But once you see a > given server under high load, you're forced to extrapolate based on your > application patterns and the data it's serving what the likely culprit is. > This can and should be much easier if we just exported request rate metrics > per-region on each server. > Dynamically updating the metrics keys based on assigned regions may pose some > minor challenges, but this seems a very valuable diagnostic tool to have > available. -- 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