[jira] Commented: (HBASE-1562) How to handle the setting of 32 bit versus 64 bit machines

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722681#action_12722681 ] 

stack commented on HBASE-1562:
------------------------------

Ask the JVM.  It knows (see the head of log where we print out JVM info.  Maybe way to ask it explicitly in a non-vendor-specific way).

> 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
>
>
> 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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