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Date: Fri, 24 Feb 2012 05:38:49 +0000 (UTC)
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Subject: [jira] [Updated] (HBASE-4365) Add a decent heuristic for region
 size
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     [ https://issues.apache.org/jira/browse/HBASE-4365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-4365:
-------------------------

    Status: Open  (was: Patch Available)
    
> Add a decent heuristic for region size
> --------------------------------------
>
>                 Key: HBASE-4365
>                 URL: https://issues.apache.org/jira/browse/HBASE-4365
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.92.1, 0.94.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>              Labels: usability
>         Attachments: 4365-v2.txt, 4365-v3.txt, 4365-v4.txt, 4365-v5.txt, 4365.txt
>
>
> A few of us were brainstorming this morning about what the default region size should be. There were a few general points made:
> - in some ways it's better to be too-large than too-small, since you can always split a table further, but you can't merge regions currently
> - with HFile v2 and multithreaded compactions there are fewer reasons to avoid very-large regions (10GB+)
> - for small tables you may want a small region size just so you can distribute load better across a cluster
> - for big tables, multi-GB is probably best

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