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From "Ranjit Mathew (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1975) gridmix shows unnecessary InterruptedException
Date Mon, 16 Aug 2010 07:51:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898816#action_12898816
] 

Ranjit Mathew commented on MAPREDUCE-1975:
------------------------------------------

Notice the "null" in the message "Statistics interrupt while waiting for polling null". This
is
because InterruptedException.getCause() is returning NULL in this case instead of a
Throwable object. I think we should just be passing the exception as-is to the error()
method.

> gridmix shows unnecessary InterruptedException
> ----------------------------------------------
>
>                 Key: MAPREDUCE-1975
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1975
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/gridmix
>            Reporter: Ravi Gummadi
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: 1975.patch
>
>
> The following InterruptedException is seen when gridmix is run and it ran successfully:
> 10/06/24 20:43:03 INFO gridmix.ReplayJobFactory: START REPLAY @ 11331037109
> 10/06/24 20:43:03 ERROR gridmix.Statistics: Statistics interrupt while waiting for polling
null
> java.lang.InterruptedException
>         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObjec\
> t.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:1899)
>         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObjec\
> t.await(AbstractQueuedSynchronizer.java:2066)
>         at org.apache.hadoop.mapred.gridmix.Statistics$StatCollector.run(Statis\
> tics.java:190)
> 10/06/24 20:43:03 INFO gridmix.Gridmix: Exiting...

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