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https://issues.apache.org/jira/browse/MAPREDUCE-2374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421036#comment-13421036
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Andy Isaacson commented on MAPREDUCE-2374:
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bq. I have noticed ENOEXEC errors for both successful as well as unsuccessful
(ETXTBSY) cases of bash -c /path/to/taskjvm.sh calls through strace output. So
I am not sure if this is the root cause. However, it doesn't hurts to add the
#!/bin/sh construct.
If you have strace output showing the ETXTBSY, could you upload it to the bug?
That would greatly help in isolating the problem. Especially if it also shows
the open()/write()/close() of the script file. Specific kernel version where
the problem has been seen would be great too!
> 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, mapreduce-2374.txt,
> mapreduce-2374.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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