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Hudson commented on MAPREDUCE-3641: ----------------------------------- Integrated in Hadoop-Mapreduce-trunk-Commit #1567 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1567/]) MAPREDUCE-3641. Making CapacityScheduler more conservative so as to assign only one off-switch container in a single scheduling iteration. Contributed by Arun C Murthy. vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1232182 Files : * /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/resource/Resources.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSAssignment.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CSQueue.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/ParentQueue.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestParentQueue.java > CapacityScheduler should be more conservative assigning off-switch requests > --------------------------------------------------------------------------- > > Key: MAPREDUCE-3641 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3641 > Project: Hadoop Map/Reduce > Issue Type: Sub-task > Components: mrv2, scheduler > Affects Versions: 0.23.0 > Reporter: Arun C Murthy > Assignee: Arun C Murthy > Priority: Blocker > Fix For: 0.23.1 > > Attachments: MAPREDUCE-3641.patch, MAPREDUCE-3641.patch, > MAPREDUCE-3641.patch, MAPREDUCE-3641.patch > > > In hadoop-1, the CS is very conservative handing out off-switch assignments, > we need to do the same in YARN. > We noticed performance regressions due to this, particularly for reduces. -- 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