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Hudson commented on YARN-1934: ------------------------------ SUCCESS: Integrated in Hadoop-Yarn-trunk #542 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/542/]) YARN-1934. Fixed a potential NPE in ZKRMStateStore caused by handling Disconnected event from ZK. Contributed by Karthik Kambatla. (jianhe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1587776) * /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt * /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java > Potential NPE in ZKRMStateStore caused by handling Disconnected event from ZK. > ------------------------------------------------------------------------------ > > Key: YARN-1934 > URL: https://issues.apache.org/jira/browse/YARN-1934 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.4.0 > Reporter: Rohith > Assignee: Karthik Kambatla > Priority: Blocker > Fix For: 2.4.1 > > Attachments: RM.txt, yarn-1934-0.patch > > > For ZK disconnected event , zkClient is set to null. It is very much prone to > throw NPE. > {noformat} > case Disconnected: > LOG.info("ZKRMStateStore Session disconnected"); > oldZkClient = zkClient; > zkClient = null; > break; > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)