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From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12260) MasterServices - remove from coprocessor API (Discuss)
Date Fri, 06 Oct 2017 19:18:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195068#comment-16195068
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Chia-Ping Tsai commented on HBASE-12260:
----------------------------------------

I guess the title should be updated?

> MasterServices - remove from coprocessor API (Discuss)
> ------------------------------------------------------
>
>                 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
>
>
> 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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