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From "Vinod Kumar Vavilapalli (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2592) TT should fail task immediately if userlog dir cannot be created
Date Tue, 20 Dec 2011 22:55:30 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated MAPREDUCE-2592:
-----------------------------------------------

    Fix Version/s:     (was: 0.24.0)
                   0.22.1

Setting fix version to 0.22.1 as JT/TT are not supported in 0.23.*. Please revert back if
you disagree.
                
> TT should fail task immediately if userlog dir cannot be created
> ----------------------------------------------------------------
>
>                 Key: MAPREDUCE-2592
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2592
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: tasktracker
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Harsh J
>             Fix For: 0.22.1
>
>         Attachments: MAPREDUCE-2592.r1.diff
>
>
> Currently, TaskRunner will log the message "mkdirs failed. Ignoring" if it fails to mkdir
the userlog directory for a task. Then, it goes on to spawn taskjvm.sh which tries to redirect
output into the userlogs dir, thus failing with exit code 1. This leads to error messages
that are very hard to diagnose ("task failed with exit status 1") in cases where the userlog
directory has either become inaccessible or has reached the maximum number of dirents (32000
in ext3)

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