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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16761) Migrate existing protobuf2.5.0 Coprocessor Endpoints (and servers-side hbase) to protobuf3.
Date Wed, 05 Oct 2016 05:17:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15547709#comment-15547709

stack commented on HBASE-16761:

Yeah. Maybe it would be ok to do this in 2.1. They have been a blind spot for us up to this.
They are not deserving of semver being internals so maybe we can cheat some on requiring a
whole major version before we can do the removal (though depends on when there is an hbase3)

> Migrate existing protobuf2.5.0 Coprocessor Endpoints (and servers-side hbase) to protobuf3.
> -------------------------------------------------------------------------------------------
>                 Key: HBASE-16761
>                 URL: https://issues.apache.org/jira/browse/HBASE-16761
>             Project: HBase
>          Issue Type: Task
>          Components: Coprocessors
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Priority: Critical
> HBase bundles seven or eight coprocessors. These Coprocessor Endpoints (CPEPs) depend
currently on protobuf 2.5 and reference protobuf classes at com.google.protobuf.* rather than
at the internal relocated location of org.apache.hadoop.hbase.shaded.com.google.protobuf.
> This is issue is about moving our CPEPs to protobuf3.
> I could just replace the protobuf library we depend on making it pb3 but that would break
CPEPs that were not shipped as part of hbase core when we install hbase-2.0.0. Over in HBASE-15638
Shade protobuf we did a bunch of work to ensure CPEPs keep working across the upgrade to hbase-2.0.0
so I suggest we just leave our core CPEPs at pb2.5 for now. Rather, lets have a deprecation
cycle where we deprecate pb2.5 on the hbase server-side (somehow) for hbase-2.0.0 and then
remove pb2.5 in hbase-3.0.0 (or 2.1 or something).
> Would appreciate input on this one. Let me mark this a 2.0.0 critical so it gets some
attention before we finish up the 2.0.0 release.

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