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Hudson commented on YARN-2853: ------------------------------ FAILURE: Integrated in Hadoop-Mapreduce-trunk #1957 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1957/]) YARN-2853. Fixed a bug in ResourceManager causing apps to hang when the user kill request races with ApplicationMaster finish. Contributed by Jian He. (vinodkv: rev 3651fe1b089851b38be351c00a9899817166bf3e) * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ApplicationMasterService.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/TestRMAppTransitions.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRM.java * hadoop-yarn-project/CHANGES.txt YARN-2853. Merging to branch-2.6 for hadoop-2.6.0-rc1. (acmurthy: rev d648e60ebab7f1942dba92e9cd2cb62b8d70419b) * hadoop-yarn-project/CHANGES.txt > Killing app may hang while AM is unregistering > ---------------------------------------------- > > Key: YARN-2853 > URL: https://issues.apache.org/jira/browse/YARN-2853 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Jian He > Assignee: Jian He > Fix For: 2.6.0 > > Attachments: YARN-2853.1.patch, YARN-2853.1.patch, YARN-2853.2.patch, > YARN-2853.3.patch > > > When killing an app, app first moves to KILLING state, If RMAppAttempt > receives the attempt_unregister event before attempt_kill event, it'll > ignore the later attempt_kill event. Hence, RMApp won't be able to move to > KILLED state and stays at KILLING state forever. -- This message was sent by Atlassian JIRA (v6.3.4#6332)