Appy created HBASE-20185:
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             Summary: Fix ACL check for MasterRpcServices#execProcedure
                 Key: HBASE-20185
                 URL: https://issues.apache.org/jira/browse/HBASE-20185
             Project: HBase
          Issue Type: Bug
            Reporter: Appy
            Assignee: Appy


Mailing thread ref: 
[http://mail-archives.apache.org/mod_mbox/hbase-dev/201803.mbox/%3CCAAjhxrriGy_UXpC4iHCSyBB18iAbjU3Y2%2BnjQ-66i9kPPCrPRQ%40mail.gmail.com%3E]

TLDR; HBASE-19400 messed up perms required for flushing a table.
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Looks like flush and snapshot procedures are already doing permissions check as 
part of preTableFlush/preSnapshot hooks. However, LogRollMasterProcedureManager 
is missing access checks ([~elserj], can someone look at it?)
 
With that, it makes no sense to put an ADMIN perm requirement which was added 
by me in HBASE-19400. Removing it.
However, to make things better for future, i have made few design changes which 
will ensure 1) perm checks don't slip by mistake, 2) a suitable placeholder for 
checks for flush & snapshot when we remove AccessController for good.
 



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