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Posted to common-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2009/02/25 12:40:02 UTC

[jira] Assigned: (HADOOP-5325) Jobs are getting stuck on JobTracker restart

     [ https://issues.apache.org/jira/browse/HADOOP-5325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amar Kamat reassigned HADOOP-5325:
----------------------------------

    Assignee: Amar Kamat

> Jobs are getting  stuck  on JobTracker  restart
> -----------------------------------------------
>
>                 Key: HADOOP-5325
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5325
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: Karam Singh
>            Assignee: Amar Kamat
>            Priority: Blocker
>
> Recovery manager failed to recover the job properly and threw "
> 2009-02-25 09:24:09,944 INFO org.apache.hadoop.fs.FSInputChecker: Found checksum error: b[7168, 7168]=
> org.apache.hadoop.fs.ChecksumException: Checksum error: file filename ".
> . As part of recovery, one of the attempts got added to the expiry launching tasks list. But. another attempt of the same tip was relaunched with the same attempt id and the job was stuck. Looks like the attempt which got expired was marked as failed and newly launched attempt (with same attempt id) was successful and Jobtracker tried marking a failed tip as successful hence the tip was considered as failed but tip.isComplete returns true.

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