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Hudson commented on YARN-742: ----------------------------- Integrated in Hadoop-Mapreduce-trunk #1447 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1447/]) YARN-742. Log aggregation causes a lot of redundant setPermission calls. Contributed by Jason Lowe. (Revision 1489596) Result = SUCCESS kihwal : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1489596 Files : * /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt * /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/LogAggregationService.java * /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java > Log aggregation causes a lot of redundant setPermission calls > ------------------------------------------------------------- > > Key: YARN-742 > URL: https://issues.apache.org/jira/browse/YARN-742 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Affects Versions: 0.23.7, 2.0.4-alpha > Reporter: Kihwal Lee > Assignee: Jason Lowe > Attachments: YARN-742-1.branch-0.23.patch, YARN-742-1.patch, > YARN-742.patch > > > In one of our clusters, namenode RPC is spending 45% of its time on serving > setPermission calls. Further investigation has revealed that most calls are > redundantly made on /mapred/logs/<user>/logs. Also mkdirs calls are made > before this. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira