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https://issues.apache.org/jira/browse/YARN-2278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058517#comment-14058517
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Junping Du commented on YARN-2278:
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However, it seems we don't check version number in RPC request in server side.
I tried to increase version number in client here, but TestRPC in yarn can
still be successful. I think we need some fix in sever side also.
> YARN RPC should support Protocol Version in client/server
> ---------------------------------------------------------
>
> Key: YARN-2278
> URL: https://issues.apache.org/jira/browse/YARN-2278
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 2.4.1
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: YARN-2278-demo.patch
>
>
> Currently in HadoopYarnProtoRPC.java, we are put a fix version number (1) in
> getting client proxy.
> {code}
> return RpcFactoryProvider.getClientFactory(conf).getClient(protocol, 1, addr,
> conf);
> {code}
> In rolling-upgrade scenario, it is possible that the client and server of
> YARN components could in different versions. We should fix this with getting
> version number from ProtocolPB (ProtocolInfo annotation) as HDFS already did.
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