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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-59) "Text File Busy" errors launching MR tasks
Date Wed, 29 Aug 2012 17:00:08 GMT

     [ https://issues.apache.org/jira/browse/YARN-59?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated YARN-59:
------------------------------

    Assignee: Andy Isaacson
    
> "Text File Busy" errors launching MR tasks
> ------------------------------------------
>
>                 Key: YARN-59
>                 URL: https://issues.apache.org/jira/browse/YARN-59
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Todd Lipcon
>            Assignee: Andy Isaacson
>             Fix For: 2.2.0-alpha, 0.23.3
>
>
> Some very small percentage of tasks fail with a "Text file busy" error.
> The following was the original diagnosis:
> {quote}
> 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.
> {quote}
> .. but turned out to be another issue as well (see below)

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