[jira] Created: (HBASE-3250) Clean up HBaseAdmin APIs

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

Clean up HBaseAdmin APIs
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                 Key: HBASE-3250
                 URL: https://issues.apache.org/jira/browse/HBASE-3250
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 0.92.0
            Reporter: Todd Lipcon


Some discussion on IRC about this - HBaseAdmin is a bit of a mess currently, it has a lot of different calls. They tend to fall into these categories:
- Things that actually affect the data from a user perspective (eg adding/dropping/enable/disable tables, setting up CFs, etc)
- Things that affect the underlying data storage (eg force split, flush, compact)
- Cluster status (isMasterRunning, checkHBaseAvailable)

I'd propose we separate these into different classes. HBaseAdmin would be reserved for "DDL" operations (eg create/alter/drop table). A new class, eg HBaseRegionTools or HBaseStorageAdmin or something, would handle the calls that affect "implementation details" like split/flush/compact. The cluster status stuff should maybe just go in a new HBaseCluster class which would also have getAdmin(), getTable(), etc?

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