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https://issues.apache.org/jira/browse/MAPREDUCE-144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod K V updated MAPREDUCE-144:
--------------------------------
Release Note:
Modified TaskMemoryManager so that it logs a map/reduce task's process-tree's
status just before it is killed when it grows out of its configured memory
limits. The log dump is in the format " |- PID PPID PGRPID SESSID CMD_NAME
VMEM_USAGE(BYTES) FULL_CMD_LINE".
This is useful for debugging the cause for a map/reduce task and it's
corresponding process-tree to be killed by the TaskMemoryManager.
> TaskMemoryManager should log process-tree's status while killing tasks.
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-144
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-144
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Reporter: Vinod K V
> Assignee: Vinod K V
> Fix For: 0.21.0
>
> Attachments: HADOOP-5570-1.patch, HADOOP-5570-20090614.txt,
> HADOOP-5570-20090615.txt, HADOOP-5570-20090619.txt, HADOOP-5570-20090622.txt,
> MAPREDUCE-144-20090902.txt, MAPREDUCE-144-20090903.1.txt,
> MAPREDUCE-144-20090903.txt, MAPREDUCE-144-20090907.internal.txt,
> MAPREDUCE-144-20090908.txt
>
>
> This helps a lot in debugging why a particular task has gone beyond memory
> limits.
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