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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6340) HBase RPC does not allow protocol extension with common interfaces.
Date Sat, 18 Aug 2012 20:23:37 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13437401#comment-13437401
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Konstantin Shvachko commented on HBASE-6340:
--------------------------------------------

Yes I didn't see any work on endpoints in HBASE-6414. Since WritableRpcEngine goes away with
it, what endpoint cps will based on?
As for this patch, I can rewrite the test to use endpoint cps. This will be less generic,
but more to the point I am targeting. This should make it independent of HBASE-6414. I am
also concerned about previous versions .92 .94, which don't have PB RPC, but have to be used
until .96 is stabilized.
                
> HBase RPC does not allow protocol extension with common interfaces.
> -------------------------------------------------------------------
>
>                 Key: HBASE-6340
>                 URL: https://issues.apache.org/jira/browse/HBASE-6340
>             Project: HBase
>          Issue Type: Bug
>          Components: coprocessors, regionserver
>    Affects Versions: 0.92.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>         Attachments: RPCInvocation.patch
>
>
> HBase RPC fails if MyProtocol extends an interface, which is not a VersionedProtocol
even if MyProtocol also directly extends VersionedProtocol. The reason is that rpc Invocation
uses Method.getDeclaringClass(), which returns the interface class rather than the class of
MyProtocol.

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