Jason Lowe created MAPREDUCE-5044:
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Summary: Have AM trigger jstack on task attempts that timeout
before killing them
Key: MAPREDUCE-5044
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5044
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mr-am
Affects Versions: 2.0.4-beta
Reporter: Jason Lowe
When an AM expires a task attempt it would be nice if it triggered a jstack
output via SIGQUIT before killing the task attempt. This would be invaluable
for helping users debug their hung tasks, especially if they do not have shell
access to the nodes.
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