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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-485) TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die
Date Tue, 19 Mar 2013 10:49:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606219#comment-13606219
] 

Hudson commented on YARN-485:
-----------------------------

Integrated in Hadoop-Yarn-trunk #160 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/160/])
    YARN-485. TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process
to die. (kkambatl via tucu) (Revision 1457936)

     Result = SUCCESS
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1457936
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java

                
> TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-485
>                 URL: https://issues.apache.org/jira/browse/YARN-485
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.0.2-alpha
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>             Fix For: 2.0.5-beta
>
>         Attachments: mr-5005.patch, yarn-485.patch
>
>
> TestProcfsProcessTree#testProcessTree fails occasionally with the following stack trace
> {noformat}
> Stack Trace:
> junit.framework.AssertionFailedError: expected:<false> but was:<true>
>         at org.apache.hadoop.util.TestProcfsBasedProcessTree.testProcessTree(TestProcfsBasedProcessTree.java)
> {noformat}
> kill -9 is executed asynchronously, the signal is delivered when the process comes out
of the kernel (sys call). Checking if the process died immediately after can fail at times.

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