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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-15678) Normalize RetryingCallable cache clearing and implementations
Date Tue, 19 Apr 2016 19:15:25 GMT
Gary Helmling created HBASE-15678:
-------------------------------------

             Summary: Normalize RetryingCallable cache clearing and implementations
                 Key: HBASE-15678
                 URL: https://issues.apache.org/jira/browse/HBASE-15678
             Project: HBase
          Issue Type: Sub-task
          Components: Client
            Reporter: Gary Helmling
            Assignee: Gary Helmling


This is a fair amount of duplication and inconsistency in the meta cache handling of RetryingCallable
implementations:
* meta cache is often cleared in prepare() when reload=true, in addition to being cleared
in throwable()
* each RetryingCallable implementation does this slightly differently, leading to inconsistencies
and potential bugs
* RegionServerCallable and RegionAdminServiceCallable duplicate a lot of code, but with small,
seemingly unnecessary inconsistencies.  We should clean these up into a common base with subclasses
doing only the necessary differentiation.

The main goal here is to establish some common handling, to the extent possible, for the meta
cache interactions by the different implementations.



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