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https://issues.apache.org/jira/browse/MAPREDUCE-2374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292886#comment-13292886
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Shrinivas Joshi commented on MAPREDUCE-2374:
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Hi Todd,
Thanks for the info. We see these exceptions once or twice in few runs so it
may be little easier for us to reproduce them. Will update this thread once we
have more info. In the mean time let us know if there is any specific debug
info/traces you think would help root cause this issue. BTW, we notice these on
a RHEL 6.2 64-bit platform with Oracle JDK 7 update 4. We have not yet
encountered these exceptions on an Ubuntu 11.04 64-bit environment though. Do
you think this might be a platform specific issue?
> Should not use PrintWriter to write taskjvm.sh
> ----------------------------------------------
>
> Key: MAPREDUCE-2374
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2374
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.22.1
>
> Attachments: mapreduce-2374-on-20sec.txt
>
>
> Our use of PrintWriter in TaskController.writeCommand is unsafe, since that
> class swallows all IO exceptions. We're not currently checking for errors,
> which I'm seeing result in occasional task failures with the message "Text
> file busy" - assumedly because the close() call is failing silently for some
> reason.
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