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Hemanth Yamijala commented on HADOOP-6106:
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HDFS tests passed with the new jars.
> 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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