Gera Shegalov created MAPREDUCE-5825:
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Summary: Provide diagnostics for reducers killed during ramp down
Key: MAPREDUCE-5825
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5825
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mr-am
Reporter: Gera Shegalov
Assignee: Gera Shegalov
Since we operate many queues pretty much at their capacity it some times
happens that a failed mapper causes a reducer ramp down. However, the user can
only see "Container killed by the ApplicationMaster" as a diagnostic message
for the task attempt, and have to dig through the AM log in order to piece
things together.
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