[jira] [Commented] (DUBBO-37) Supporting gRPC Protocol.

["Jun Liu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DUBBO-37?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16812130#comment-16812130 ] 

Jun Liu commented on DUBBO-37:
------------------------------

Hi [~Trafalgar Ricardo Lu],

This task does not have to bind to AbstractProxyProtocol and HttpHandler, how ThriftProtocol integrates with Thrift can be more suitable for reference.

Two basic goals to keep in mind:
1. When exporting Dubbo service
   * First, we should start the standard gRPC Server if we are not going to start our own server.
   * Then, we should register the service implementation to gRPC (gRPC's HandlerRegistry for example)
2. When referring Dubbo service, we should make sure the Dubbo proxy delegates to a standard gRPC client.


I'm also new to this topic, I will spend some time on it, and hopefully, I would be able to share some of my own thoughts by the end of this week. 

> Supporting gRPC Protocol.
> -------------------------
>
>                 Key: DUBBO-37
>                 URL: https://issues.apache.org/jira/browse/DUBBO-37
>             Project: Apache Dubbo
>          Issue Type: Task
>            Reporter: Jun Liu
>            Priority: Major
>              Labels: GSoC2019
>
> gRPC is a very popular RPC framework built on top of the HTTP/2 protocol. We can try to integrate gRPC with Dubbo and make it one of the many third-party RPC protocols supported by Dubbo, just like Hessian ([code|https://github.com/apache/incubator-dubbo/tree/master/dubbo-rpc/dubbo-rpc-hessian], [doc|http://dubbo.apache.org/en-us/docs/user/references/protocol/hessian.html]) and Thrift ([code|https://github.com/apache/incubator-dubbo/tree/master/dubbo-rpc/dubbo-rpc-thrift], [doc|http://dubbo.apache.org/en-us/docs/user/references/protocol/thrift.html]).
> - Make gRPC easy to use: allowing developers to program with interface directly, calling remote gRPC services like calling local services
> - Leverage service governance features provided by Dubbo: Service Discovery, Load Balancing and Traffic Management.



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