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https://issues.apache.org/jira/browse/MAPREDUCE-1755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864469#action_12864469
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Allen Wittenauer commented on MAPREDUCE-1755:
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FWIW, all of the other zombie tasks appear to have the same loop.

It would be good if someone can confirm the same pattern on non-Solaris.  I 
have a suspicion that the zombie tasks at Y! are showing the same behavio(u)r.

> Zombie tasks kept alive by logging system
> -----------------------------------------
>
>                 Key: MAPREDUCE-1755
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1755
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: Allen Wittenauer
>         Attachments: stderr.txt, syslog.txt, tightloop.txt
>
>
> I'm currently looking at a task that, as far as the task tracker is 
> concerned, is dead.  Like long long long ago dead.  It was a failed task that 
> ran out of heap.  Rather than just kill it, I thought I would see what it was 
> doing, since it was clearly using system resources.  It would appear the 
> system is trying to log but failing.  I'm guessing we're missing an error 
> condition and not doing the appropriate thing. See the comments for more.

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