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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-408) TestKillSubProcesses fails with assertion failure sometimes
Date Thu, 16 Jul 2009 07:17:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12731842#action_12731842
] 

Vinod K V commented on MAPREDUCE-408:
-------------------------------------

Patch looks good. +1.

Documenting what the patch does.
 - Fixed FileSystem to be set in the mapper.
 - Cleans up various signal file/directory related variables to be done at a single place.
 - Explicitly sets test.build.data for the child using mapred.child.java.opts as test.build.data
is not passed to child otherwise and in our test, child needs access to files/dirs in this
temporary dir.

> TestKillSubProcesses fails with assertion failure sometimes
> -----------------------------------------------------------
>
>                 Key: MAPREDUCE-408
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-408
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Ravi Gummadi
>         Attachments: MR-408.patch, MR-408.v1.1.patch, MR-408.v1.patch
>
>
> org.apache.hadoop.mapred.TestKillSubProcesses.testJobKillFailAndSucceed fails sometimes
with following error Message:
> {noformat}
> Unexpected: The subprocess at level 3 in the subtree is not alive before Job completion
> {noformat}
> Stacktrace
> {noformat}
> junit.framework.AssertionFailedError: Unexpected: The subprocess at level 3 in the subtree
is not alive before Job completion
> 	at org.apache.hadoop.mapred.TestKillSubProcesses.runJobAndSetProcessHandle(TestKillSubProcesses.java:221)
> 	at org.apache.hadoop.mapred.TestKillSubProcesses.runFailingJobAndValidate(TestKillSubProcesses.java:112)
> 	at org.apache.hadoop.mapred.TestKillSubProcesses.runTests(TestKillSubProcesses.java:327)
> 	at org.apache.hadoop.mapred.TestKillSubProcesses.testJobKillFailAndSucceed(TestKillSubProcesses.java:310)
> {noformat}
> one such failure at http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/495/testReport/org.apache.hadoop.mapred/TestKillSubProcesses/testJobKillFailAndSucceed/

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