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From "Eli Collins (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-2921) TaskTracker won't start with failed local directory
Date Fri, 11 Nov 2011 22:38:52 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Eli Collins resolved MAPREDUCE-2921.

    Resolution: Duplicate

It turns out the TT will successfully start if there's a failed local directory (it checks
the dirs and removes any that fail)  so it will start up fine with a failed or read-only directory
etc. The failure I discovered in the first description is because checkDir doesn't fail if
the directory exists and is not exectutable, once that's fixed the TT will start up in that
case as well.
> TaskTracker won't start with failed local directory
> ---------------------------------------------------
>                 Key: MAPREDUCE-2921
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2921
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: tasktracker
>    Affects Versions:
>            Reporter: Eli Collins
>            Assignee: Eli Collins
> Chmod'ing one of the mapred local directories so it's not executable will cause the TT
to fail to start. Doing this after the TT has started will result in a TT that is up but can
not execute tasks. 

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