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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2014/07/02 04:21:24 UTC

[jira] [Updated] (YARN-2241) ZKRMStateStore: On startup, show nicer messages when znodes already exist

     [ https://issues.apache.org/jira/browse/YARN-2241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Karthik Kambatla updated YARN-2241:
-----------------------------------

    Summary: ZKRMStateStore: On startup, show nicer messages when znodes already exist  (was: Show nicer messages when ZNodes already exist in ZKRMStateStore on startup)

> ZKRMStateStore: On startup, show nicer messages when znodes already exist
> -------------------------------------------------------------------------
>
>                 Key: YARN-2241
>                 URL: https://issues.apache.org/jira/browse/YARN-2241
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.5.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>            Priority: Minor
>         Attachments: YARN-2241.patch
>
>
> When using the RMZKStateStore, if you restart the RM, you get a bunch of stack traces with messages like {{org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /rmstore}}.  This is expected as these nodes already exist from before.  We should catch these and print nicer messages.



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