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https://issues.apache.org/jira/browse/HBASE-5386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-5386:
---------------------------------
Fix Version/s: (was: 0.94.0)
0.96.0
0.96
> [usability] Soft limit for eager region splitting of young tables
> -----------------------------------------------------------------
>
> Key: HBASE-5386
> URL: https://issues.apache.org/jira/browse/HBASE-5386
> Project: HBase
> Issue Type: New Feature
> Reporter: Jean-Daniel Cryans
> Fix For: 0.96.0
>
>
> Coming out of HBASE-2375, we need a new functionality much like hypertable's
> where we would have a lower split size for new tables and it would grow up to
> a certain hard limit. This helps usability in different ways:
> - With that we can set the default split size much higher and users will
> still have good data distribution
> - No more messing with force splits
> - Not mandatory to pre-split your table in order to get good out of the box
> performance
> The way Doug Judd described how it works for them, they start with a low
> value and then double it every time it splits. For example if we started with
> a soft size of 32MB and a hard size of 2GB, it wouldn't be until you have 64
> regions that you hit the ceiling.
> On the implementation side, we could add a new qualifier in .META. that has
> that soft limit. When that field doesn't exist, this feature doesn't kick in.
> It would be written by the region servers after a split and by the master
> when the table is created with 1 region.
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