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https://issues.apache.org/jira/browse/HADOOP-6106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hemanth Yamijala resolved HADOOP-6106.
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Resolution: Fixed
Fix Version/s: 0.21.0
Hadoop Flags: [Reviewed]
I just committed this. Thanks, Sreekanth !
> Provide an option in ShellCommandExecutor to timeout commands that do not
> complete within a certain amount of time.
> -------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6106
> URL: https://issues.apache.org/jira/browse/HADOOP-6106
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Reporter: Hemanth Yamijala
> Assignee: Sreekanth Ramakrishnan
> Fix For: 0.21.0
>
> Attachments: HADOOP-6106-1.patch, HADOOP-6106-2.patch,
> HADOOP-6106.patch, mapred-211-common-3.patch
>
>
> In MAPREDUCE-211 we came across a need to provide an option to timeout
> commands launched via the ShellCommandExecutor. The use case is for the
> health check script being developed in MAPREDUCE-211. We would like the
> TaskTracker thread to not be blocked by a problematic script or in instances
> where fork()+exec() has hung (which apparently has been observed in large
> clusters).
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