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Posted to common-dev@hadoop.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2009/03/02 16:46:56 UTC

[jira] Updated: (HADOOP-5338) Reduce tasks are stuck waiting for map outputs when none are in progress

     [ https://issues.apache.org/jira/browse/HADOOP-5338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemanth Yamijala updated HADOOP-5338:
-------------------------------------

    Priority: Blocker  (was: Major)

> Reduce tasks are stuck waiting for map outputs when none are in progress
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-5338
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5338
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: Ramya R
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: log.txt
>
>
> When JT is restarted several times, a situation is encountered when the reduce tasks are stuck forever waiting for map outputs. However 100%map is complete and none of the map tasks are in progress. The reduce tasks wait infinitely.

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