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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2014/04/12 18:52:16 UTC
[jira] [Assigned] (YARN-1934) Potential NPE in ZKRMStateStore
caused by handling Disconnected event from ZK.
[ https://issues.apache.org/jira/browse/YARN-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Kambatla reassigned YARN-1934:
--------------------------------------
Assignee: Karthik Kambatla
> 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: Critical
> Attachments: RM.txt
>
>
> 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}
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