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Posted to mapreduce-issues@hadoop.apache.org by "Gera Shegalov (JIRA)" <ji...@apache.org> on 2015/01/16 21:33:34 UTC
[jira] [Updated] (MAPREDUCE-6209) Implement a heuristic to
auto-size Java heap of MRAppMaster container proportional to the job size
[ https://issues.apache.org/jira/browse/MAPREDUCE-6209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
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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