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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2284) TestLocalRunner.testMultiMaps times out
Date Tue, 01 Mar 2011 19:15:37 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13001034#comment-13001034
] 

Tom White commented on MAPREDUCE-2284:
--------------------------------------

> I wonder if this is due to clover? The test does a lot of busy loops, maybe when clover
instrumentation is on, it just runs too slowly?

Looks like this is exactly what is happening: https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk/606/testReport/org.apache.hadoop.mapreduce/TestLocalRunner/testMultiMaps/

We could fix this by removing the busy loops, replacing them with loops with different sleep
times.

> TestLocalRunner.testMultiMaps times out
> ---------------------------------------
>
>                 Key: MAPREDUCE-2284
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2284
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.22.0
>
>         Attachments: mapreduce-2284-help-diagnose.txt
>
>
> This test has timed out in a number of Hudson builds.

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