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https://issues.apache.org/jira/browse/MAPREDUCE-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sanjay Radia resolved MAPREDUCE-4260.
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Resolution: Fixed
Commit to the windows branch. Thanks Bikas.
> Use JobObject to spawn tasks on Windows
> ---------------------------------------
>
> Key: MAPREDUCE-4260
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4260
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 1.0.0
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: MAPREDUCE-4260.branch-1-win.1.patch,
> MAPREDUCE-4260.branch-1-win.2.patch, MAPREDUCE-4260.branch-1-win.patch,
> MAPREDUCE-4260.patch, test.cpp
>
>
> Currently, the Windows version spawns the task as a normal cmd shell from
> which other downstream exe's are spawned. However, this is not bullet proof
> because if an intermediate process exits before its child exits, then the
> parent child process tree relationship cannot be constructed. Windows has a
> concept of JobObject that is similar to the setsid behavior used in Linux.
> The initial spawned task could be launched within its JobObject. Thereafter,
> process termination, memory management etc could be operated on the JobObject.
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