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https://issues.apache.org/jira/browse/HADOOP-4939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12660023#action_12660023
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Devaraj Das commented on HADOOP-4939:
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Arun, the PID file is looked at if it exists. I have the 'ps | grep | etc' to
take care of the case where the test is run using HOD (as is normally the case
in Yahoo!). In that case, the PID file is not written. Also, note that
stopping/resuming daemons through 'ps | grep | etc' will stop/resume only those
processes that had been launched by the user running the test.
> Create a test that would inject random failures for tasks in large jobs and
> would also inject TaskTracker failures
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4939
> URL: https://issues.apache.org/jira/browse/HADOOP-4939
> Project: Hadoop Core
> Issue Type: Sub-task
> Components: mapred, test
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 0.20.0
>
> Attachments: 4939.patch
>
>
> Create a test that would inject random failures for tasks in large jobs and
> would also inject TaskTracker failures
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