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Hudson commented on YARN-3485: ------------------------------ FAILURE: Integrated in Hadoop-trunk-Commit #7698 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/7698/]) YARN-3485. FairScheduler headroom calculation doesn't consider maxResources for Fifo and FairShare policies. (kasha) (kasha: rev 8f82970e0c247b37b2bf33aa21f6a39afa07efde) * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFSAppAttempt.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FifoPolicy.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSAppAttempt.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/SchedulingPolicy.java * hadoop-yarn-project/CHANGES.txt * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/DominantResourceFairnessPolicy.java > FairScheduler headroom calculation doesn't consider maxResources for Fifo and > FairShare policies > ------------------------------------------------------------------------------------------------ > > Key: YARN-3485 > URL: https://issues.apache.org/jira/browse/YARN-3485 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.7.0 > Reporter: Karthik Kambatla > Assignee: Karthik Kambatla > Priority: Critical > Fix For: 2.7.1 > > Attachments: yarn-3485-1.patch, yarn-3485-2.patch, yarn-3485-3.patch, > yarn-3485-prelim.patch > > > FairScheduler's headroom calculations consider the fairshare and > cluster-available-resources, and the fairshare has maxResources. However, for > Fifo and Fairshare policies, the fairshare is used only for memory and not > cpu. So, the scheduler ends up showing a higher headroom than is actually > available. This could lead to applications waiting for resources far longer > than then intend to. e.g. MAPREDUCE-6302. -- This message was sent by Atlassian JIRA (v6.3.4#6332)