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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4365) Add a decent heuristic for region size
Date Fri, 09 Sep 2011 23:58:09 GMT
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

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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