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https://issues.apache.org/jira/browse/HBASE-4365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209621#comment-13209621
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stack commented on HBASE-4365:
------------------------------
Chatting w/ J-D, probably less disruptive if we do square of the count of
regions on a regionserver so we get to max size faster (then there'll be less
regions created overall by this phenomeon).
> 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: 0.94.0
> Reporter: Todd Lipcon
> Attachments: 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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