stack created HBASE-18102:
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Summary: [SHELL] Purge commands that allow by-pass of Master; e.g.
close of a region sent to regionserver explicitly
Key: HBASE-18102
URL: https://issues.apache.org/jira/browse/HBASE-18102
Project: HBase
Issue Type: Sub-task
Components: Operability, shell
Reporter: stack
Fix For: 2.0.0
In AMv2, if a RS is not aligned with Master notions of how the world is, then
the Master will kill the deviant RS (TODO: is forcing compliance via less
radical means -- but that is how it is currently).
The shell currently allows by-passing the Master to make cluster modifications
such as our being able to send a close directly to a RegionServer for it to
execute locally. This facility was used in the past to do fix-up when Master
lost account of Region locations. In the new regime, such mis-accounting should
no longer happen and, should a user mistakenly do an explicit close against a
RS, the consequences will be more than the user bargained for; the Master will
shut down the RS as soon as it reports close of a Region the master thinks
should be open (No independence allowed!).
This issue is to review shell Region and Table manipulation commands to purge
those that by-pass Master or at least to add big warning.
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