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https://issues.apache.org/jira/browse/MAPREDUCE-144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinod K V updated MAPREDUCE-144:
--------------------------------
Attachment: MAPREDUCE-144-20090902.txt
Attaching an updated patch to reflect the project split. Also added parent pid
to the dump.
The tree dump would look something like below"
{code}
TaskTree [pid=20096,tipID=attempt_20090902122532859_0001_m_000004_0] is running
beyond memory-
limits. Current usage : 426889216bytes. Limit : 1048576bytes. Killing task.
Dump of the process-tree for attempt_20090902122532859_0001_m_000004_0 :
|- $pid $ppid $cmd_name $vmem_usage $cmd_line
|- 20130 20128 (sh) 1916928bytes sh
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build/test/data
/testProcessTree_shellScript_-2044420742.sh 0
|- 20128 20126 (sh) 1916928bytes sh
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build/test/data
/testProcessTree_shellScript_-2044420742.sh 1
|- 20116 20096 (bash) 4542464bytes bash -c echo $$ >
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build
/test/data/testProcessTree_pidFile_-1719677031.pid; sh
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build/test/data
/testProcessTree_shellScript_-2044420742.sh 6;
|- 20117 20116 (sh) 1916928bytes sh
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build/test/data
/testProcessTree_shellScript_-2044420742.sh 6
|- 20132 20130 (sleep) 3108864bytes sleep 5
|- 20120 20117 (sh) 1916928bytes sh
/home/vinodkv/Workspace/eclipse-workspace/hadoop-mapreduce/build/test/data
/testProcessTree_shellScript_-2044420742.sh 5
....
{code}
> 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
> Reporter: Vinod K V
> Assignee: Vinod K V
> 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
>
>
> This helps a lot in debugging why a particular task has gone beyond memory
> limits.
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