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Posted to mapreduce-issues@hadoop.apache.org by "Harsh J (Updated) (JIRA)" <ji...@apache.org> on 2012/01/12 07:49:40 UTC
[jira] [Updated] (MAPREDUCE-478) separate jvm param for mapper and
reducer
[ https://issues.apache.org/jira/browse/MAPREDUCE-478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J updated MAPREDUCE-478:
------------------------------
Fix Version/s: (was: 0.21.0)
0.20.203.0
0.22.0
Adding a Fix Version for 0.20 since this was backported to it as well, in-via-the yahoo security merge.
> separate jvm param for mapper and reducer
> -----------------------------------------
>
> Key: MAPREDUCE-478
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-478
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Koji Noguchi
> Assignee: Arun C Murthy
> Priority: Minor
> Fix For: 0.20.203.0, 0.22.0
>
> Attachments: 478.20S-1.patch, HADOOP-5684_0_20090420.patch, MAPREDUCE-478_0_20090804.patch, MAPREDUCE-478_0_20090804_yhadoop20.patch, MAPREDUCE-478_1_20090806.patch, MAPREDUCE-478_1_20090806_yhadoop20.patch, MAPREDUCE-478_2_20090813.patch, MAPREDUCE-478_2_20090813.patch, MAPREDUCE-478_2_20090813_yhadoop.patch, MAPREDUCE-478_3_20090814.patch, MAPREDUCE-478_3_20090814_yhadoop.patch
>
>
> Memory footprint of mapper and reducer can differ.
> It would be nice if we can pass different jvm param (mapred.child.java.opts) for mappers and reducers.
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