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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3714) Reduce hangs in a corner case
Date Tue, 24 Jan 2012 23:40:45 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13192664#comment-13192664
] 

Hudson commented on MAPREDUCE-3714:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1597 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1597/])
    MAPREDUCE-3714. Fixed EventFetcher and Fetcher threads to shut-down properly so that reducers
don't hang in corner cases. (vinodkv)

vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1235545
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/EventFetcher.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/Fetcher.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/Shuffle.java

                
> Reduce hangs in a corner case
> -----------------------------
>
>                 Key: MAPREDUCE-3714
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3714
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, task
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3714-20120123.txt, MAPREDUCE-3714-20120124.txt, MAPREDUCE-3714-20120124.txt
>
>
> [~karams] found this long time back and we(Sid/I) ran into this again.
> Logs to follow..

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