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Posted to common-dev@hadoop.apache.org by "Nigel Daley (JIRA)" <ji...@apache.org> on 2008/02/01 19:27:08 UTC

[jira] Resolved: (HADOOP-2764) specify different heap size for namenode/jobtracker vs. tasktracker/datanodes

     [ https://issues.apache.org/jira/browse/HADOOP-2764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nigel Daley resolved HADOOP-2764.
---------------------------------

    Resolution: Duplicate

This should be covered by HADOOP-2551.

> specify different heap size for namenode/jobtracker vs. tasktracker/datanodes
> -----------------------------------------------------------------------------
>
>                 Key: HADOOP-2764
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2764
>             Project: Hadoop Core
>          Issue Type: New Feature
>    Affects Versions: 0.15.3
>            Reporter: Joydeep Sen Sarma
>            Priority: Minor
>
> tasktrackers/datanodes should be run with low memory settings. theres a lot of competition for memory on slave nodes and these tasks don't need much memory anyway and best to keep heap setting low.
> namenode needs higher memory and there's usually lots to spare on separate box.
> hadoop-env.sh can provide different heap settings for central vs. slave daemons.

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