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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2495) The distributed cache cleanup thread has no monitoring to check to see if it has died for some reason
Date Fri, 17 Jun 2011 20:15:48 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated MAPREDUCE-2495:
-------------------------------------

    Fix Version/s:     (was: 0.20.205.0)

> The distributed cache cleanup thread has no monitoring to check to see if it has died
for some reason
> -----------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2495
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2495
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: distributed-cache
>    Affects Versions: 0.21.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Minor
>             Fix For: 0.20.204.0, 0.23.0
>
>         Attachments: MAPREDUCE-2495-20.20X-V1.patch, MAPREDUCE-2495-20.20X-V2.patch,
MAPREDUCE-2495-20.20X-V3.patch, MAPREDUCE-2495-20.20X-V4.patch, MAPREDUCE-2495-v1.patch, MAPREDUCE-2495-v2.patch,
MAPREDUCE-2495-v3.patch, MAPREDUCE-2495-v4.patch
>
>
> The cleanup thread in the distributed cache handles IOExceptions and the like correctly,
but just to be a bit more defensive it would be good to monitor the thread, and check that
it is still alive regularly, so that the distributed cache does not fill up the entire disk
on the node. 

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