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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1934) Potential NPE in ZKRMStateStore caused by handling Disconnected event from ZK.
Date Mon, 14 Apr 2014 23:17:16 GMT

     [ https://issues.apache.org/jira/browse/YARN-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated YARN-1934:
-----------------------------------

    Priority: Blocker  (was: Critical)

> 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
>         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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