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https://issues.apache.org/jira/browse/HBASE-12260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195335#comment-16195335
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stack commented on HBASE-12260:
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.003 includes appy suggested change and some cleanup. Mostly complete. Missing
is some facility I need to provide RSGroup Coprocessor but otherwise,
boilerplate move from MasterServices to HMaster references.
> MasterServices needs a short-back-and-sides; pare-back exposure of internals
> and IA.Private classes
> ---------------------------------------------------------------------------------------------------
>
> Key: HBASE-12260
> URL: https://issues.apache.org/jira/browse/HBASE-12260
> Project: HBase
> Issue Type: Sub-task
> Components: master
> Reporter: ryan rawson
> Assignee: stack
> Priority: Critical
> Fix For: 2.0.0-alpha-4
>
> Attachments: HBASE-12260.master.001.patch,
> HBASE-12260.master.002.patch, HBASE-12260.master.003.patch,
> HBASE-12260.master.004.patch
>
>
> A major issue with MasterServices is the MasterCoprocessorEnvironment exposes
> this class even though MasterServices is tagged with
> @InterfaceAudience.Private
> This means that the entire internals of the HMaster is essentially part of
> the coprocessor API. Many of the classes returned by the MasterServices API
> are highly internal, extremely powerful, and subject to constant change.
> Perhaps a new API to replace MasterServices that is use-case focused, and
> justified based on real world co-processors would suit things better.
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