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https://issues.apache.org/jira/browse/MAPREDUCE-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Joseph Evans updated MAPREDUCE-2495:
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Status: Patch Available (was: Open)
> 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
> 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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