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From "Erik Holstad (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1562) How to handle the setting of 32 bit versus 64 bit machines
Date Wed, 24 Jun 2009 18:44:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Erik Holstad updated HBASE-1562:

    Attachment: HBASE-1562-v2.patch

Readded empty line.

> How to handle the setting of 32 bit versus 64 bit machines
> ----------------------------------------------------------
>                 Key: HBASE-1562
>                 URL: https://issues.apache.org/jira/browse/HBASE-1562
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Erik Holstad
>            Assignee: Erik Holstad
>             Fix For: 0.20.0
>         Attachments: HBASE-1562-v1.patch, HBASE-1562-v2.patch
> After adding the tests to verify the correctness of the HeapSize calculations the question
of where to set the type of machines that are in the cluster arose.
> I would think that most people are using 64 bit machines but we still need to support
the use of 32 bit. So the way I see it we can solve this problem in two ways,
> we can either have a settable parameter the the user sets when starting up the cluster
or we can try to figure it out ourselves. I think that the second solution would
> be the best, to make it as easy as possible on the user. 
> That means that we need to add extra sizes to HeapSize and maybe even to Bytes.
> Thoughts, comments?

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