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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1869) TaskTracker hung in org.apache.hadoop.fs.LocalDirAllocator
Date Tue, 15 Jun 2010 23:15:26 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12879172#action_12879172
] 

Allen Wittenauer commented on MAPREDUCE-1869:
---------------------------------------------

Oh, one other thing:  no really interesting exceptions in the tasktracker log.  Just the normal
jetty mapoutput craziness.

> TaskTracker hung in org.apache.hadoop.fs.LocalDirAllocator
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-1869
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1869
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.20.2
>         Environment: Solaris 10 Update 7
> Java 1.6.0_14
>            Reporter: Allen Wittenauer
>            Priority: Critical
>         Attachments: jstack.txt, pstack.txt
>
>
> A TaskTracker process on our grid appears to be locked up and not sending heartbeats
to the namenode.  Attaching jstack and pstack output.  Even tho the hangs appear to be in
LocalDirAllocator, the local file system seems to be a-ok.  

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