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Hadoop QA commented on MAPREDUCE-1219: -------------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12442501/MR-1219-1.patch against trunk revision 936166. +1 @author. The patch does not contain any @author tags. -1 tests included. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. +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 does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/125/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/125/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/125/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/125/console This message is automatically generated. > JobTracker Metrics causes undue load on JobTracker > -------------------------------------------------- > > Key: MAPREDUCE-1219 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1219 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 0.21.0 > Reporter: Jothi Padmanabhan > Assignee: Amareshwari Sriramadasu > Attachments: MAPREDUCE-1219.patch, MR-1219-1.patch, > patch-1219-ydist.txt > > > JobTrackerMetricsInst.doUpdates updates job-level counters of all running > jobs into JobTracker's metrics causing very bad performance and hampers > heartbeats. Since Job level metrics are better served by JobHistory, it may > be a good idea to remove these from the metrics framework. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.