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https://issues.apache.org/jira/browse/MAPREDUCE-6209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gera Shegalov updated MAPREDUCE-6209:
-------------------------------------
    Summary: Implement a heuristic to auto-size Java heap of MRAppMaster 
container proportional to the job size  (was: Implement a heuristic to 
auto-size Java heap of MRAppMaster container)

> Implement a heuristic to auto-size Java heap of MRAppMaster container 
> proportional to the job size
> --------------------------------------------------------------------------------------------------
>
>                 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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