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Hadoop QA commented on MAPREDUCE-3511: -------------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12509821/MAPREDUCE-3511-20120107.1.txt against trunk revision . +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 18 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 eclipse:eclipse. The patch built with eclipse:eclipse. -1 findbugs. The patch appears to introduce 1 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: org.apache.hadoop.mapreduce.security.TestTokenCache +1 contrib tests. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1566//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1566//artifact/trunk/hadoop-mapreduce-project/patchprocess/newPatchFindbugsWarningshadoop-mapreduce-client-app.html Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1566//console This message is automatically generated. > Counters occupy a good part of AM heap > -------------------------------------- > > Key: MAPREDUCE-3511 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3511 > Project: Hadoop Map/Reduce > Issue Type: Sub-task > Components: mr-am, mrv2 > Affects Versions: 0.23.0 > Reporter: Siddharth Seth > Assignee: Vinod Kumar Vavilapalli > Priority: Blocker > Fix For: 0.23.1 > > Attachments: MAPREDUCE-3511-20120107.1.txt > > > Per task counters seem to be occupying a good part of an AMs heap. Looks like > more than 50% of what's used by a TaskAttemptImpl object. > This could be optimized by interning strings or possibly using mrv1 counters > which are optimized. Currently counters are converted from mrv1 to mrv2 > format for in memory storage. The conversion could be delayed till it's > actually required for RPC transfers. -- 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