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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2762) Better documentation of controls for memory limits on hadoop daemons and Map-Reduce tasks
Date Fri, 13 Jun 2008 04:46:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated HADOOP-2762:
--------------------------------------------

    Attachment: patch-2762.txt

Added a table describing various HADOOP_*_OPTS available to the earlier patch.

> Better documentation of controls for memory limits on hadoop daemons and Map-Reduce tasks
> -----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2762
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2762
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: documentation, mapred, scripts
>    Affects Versions: 0.16.0
>            Reporter: Arun C Murthy
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: patch-2762.txt, patch-2762.txt
>
>
> We have had a spate of questions about memory usage of hadoop daemons and Map-Reduce
jobs and how to configure them. 
> We should better document *mapred.child.java.opts* in the Map-Reduce tutorial and cluser_setup.html
and link to http://hadoop.apache.org/core/docs/r0.15.3/cluster_setup.html#Configuring+the+Environment+of+the+Hadoop+Daemons.


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