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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-485) TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die
Date Mon, 18 Mar 2013 18:42:15 GMT

    [ https://issues.apache.org/jira/browse/YARN-485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13605454#comment-13605454
] 

Alejandro Abdelnur commented on YARN-485:
-----------------------------------------

+1 pending test-patch
                
> 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
>         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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