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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2495) The distributed cache cleanup thread has no monitoring to check to see if it has dies for some reason
Date Mon, 16 May 2011 19:23:47 GMT

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

Robert Joseph Evans updated MAPREDUCE-2495:
-------------------------------------------

    Attachment: MAPREDUCE-2495-v1.patch

Added simple patch to verify that the cleanup thread is always running when cache archives
are being added in.

> The distributed cache cleanup thread has no monitoring to check to see if it has dies
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
>         Attachments: MAPREDUCE-2495-v1.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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