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From "Nigel Daley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2847) [HOD] Idle cluster cleanup does not work if the JobTracker becomes unresponsive to RPC calls
Date Mon, 03 Mar 2008 16:54:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nigel Daley updated HADOOP-2847:
--------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this.  Thanks Hemanth!!

> [HOD] Idle cluster cleanup does not work if the JobTracker becomes unresponsive to RPC
calls
> --------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2847
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2847
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>    Affects Versions: 0.16.0
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.16.1
>
>         Attachments: hadoop-2847
>
>
> In some erroneous conditions, the Hadoop JobTracker becomes unresponsive to RPC calls
(for e.g. if a misconfiguration causes the JobTracker to run out of memory). In such cases,
a cluster allocated by HOD no longer runs any jobs and is wastefully holding up nodes. The
usual idle cluster cleaner should deallocate the cluster ideally, but it does not.

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