ASF GitHub Bot commented on FLINK-4580:

Github user StephanEwen commented on the issue:

    +1 to merge this

> Check that the RpcEndpoint supports the specified RpcGateway
> ------------------------------------------------------------
>                 Key: FLINK-4580
>                 URL: https://issues.apache.org/jira/browse/FLINK-4580
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Distributed Coordination
>    Affects Versions: 1.2.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>            Priority: Minor
> When calling {{RpcService.connect}} the user specifies the type of the 
> {{RpcGateway}}. At the moment, it is not checked whether the {{RpcEndpoint}} 
> actually supports the specified {{RpcGateway}}.
> I think it would be good to add a runtime check that the corresponding 
> {{RpcEndpoint}} supports the specified {{RpcGateway}}. If not, then we can 
> let the connect method fail fast.

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