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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16757) Integrate functionality currently done up as Coprocessor Endpoints into core.
Date Tue, 04 Oct 2016 19:31:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15546399#comment-15546399
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stack commented on HBASE-16757:
-------------------------------

bq. Auth, as pointed out by Matteo Bertozzi, is not a Coprocessor Endpoint though it is cast
as one invoked natively by RPC.

The above was my mistake (not [~mbertozzi]'s). Please forgive my messy understanding of what
is going on here.

Thanks for clarification [~ghelmling].  Main point is that yeah, time to integrate these CPEPs
as core. The TokenProvider is bound up in RPC at least. I could not move it out of the guts
of hbase.  On AC CPEP, similar though I spent less effort on this one.

> Integrate functionality currently done up as Coprocessor Endpoints into core.
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-16757
>                 URL: https://issues.apache.org/jira/browse/HBASE-16757
>             Project: HBase
>          Issue Type: Task
>          Components: Coprocessors
>            Reporter: stack
>
> As part of the work over in HBASE-15638, "Shade Protobufs", I could not but help noticing
that of the seven or eight Coprocessor Endpoints bundled with hbase, half should have been
converted to be core long time again. In fact, some of these core CPEPs are no longer viable
as CPEPs, if they ever were, given how intertwined with core they are.
> For example, MultiRowMutation, the nice CPEP that allows us do cross-row transactions
used natively amending hbase:meta, has much of its facility baked into core without which
it could not run. In an exercise, I was able to convert this one over without having to alter
public APIs in Table or Admin.
> Auth, as pointed out by [~mbertozzi], is not a Coprocessor Endpoint though it is cast
as one invoked natively by RPC.
> VisibilityLabels is a CPEP but core types -- Query and Mutation -- actually depend on
VisibiltyLabel related classes.
> SecureBulkLoad is not in any violation being a CPEP provided to add API ahead-of-time
since properly deprecated and already integrated to core but I mention it here for completeness
sake.



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