Gary Helmling created HBASE-15678:
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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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