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https://issues.apache.org/jira/browse/HBASE-6340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434817#comment-13434817
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Zhihong Ted Yu commented on HBASE-6340:
---------------------------------------
Take a look at hbase-server/src/test/protobuf/test_rpc_service.proto and
TestProtoBufRpc.
Here is method signature for ping():
{code}
public EmptyResponseProto ping(RpcController unused,
EmptyRequestProto request) throws ServiceException {
{code}
> 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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