Gera Shegalov created MAPREDUCE-6209:
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Summary: Implement a heuristic to auto-size Java heap of
MRAppMaster container
Key: MAPREDUCE-6209
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6209
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: applicationmaster
Reporter: Gera Shegalov
The size of Java heap required by the AM is linearly proportional to the size
of the MR job (number of mappers/splits and reducers). it would be nice if
users did not have to adjust the AM container size when transitioning from
testing job on a small sample to a production job on a full-scale dataset.
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