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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1867) use single parameter to specify a node's available ram
Date Mon, 10 Sep 2007 17:46:29 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12526204
] 

Raghu Angadi commented on HADOOP-1867:
--------------------------------------

Isn't memory allowed for JVM already available?

> use single parameter to specify a node's available ram
> ------------------------------------------------------
>
>                 Key: HADOOP-1867
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1867
>             Project: Hadoop
>          Issue Type: Improvement
>            Reporter: Doug Cutting
>
> To simplify configuration, we should use a single parameter to indicate a node's available
RAM.  Sites should not need to adjust more than this single parameter to configure nodes available
memory.  In task JVMs, some significant percentage of the memory should be reserved for application
code, with the remainder divided among various system buffers.

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