alibaba/arthas

实现一个简化版的grpc

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#2349 opened on Nov 18, 2022

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help wanted

Description

arthas目前的http api比较简陋，很多功能都不理想。后续希望通过一个grpc server来提供服务。但是grpc官方的实现太大了，需要打包很多东西。

需要解决两个问题：

  1. gRPC协议的实现

    尽量少外部依赖，需要支持双向stream。

  2. protobuf的序列化/反序列化

    这个优先级不是很高，可能直接用 protobuf java官方的生成代码也可以接受。

可以参考下面这个项目，它有实现 gRPC 协议

序列化部分，可能可以参考 opentelemetry 里的半手动的方式。可能写起来比较麻烦，但好处是不用引用太多外部的依赖。

考虑基于netty实现一个简化版本的grpc server。目前可以参考dubbo里的triple实现。热烈欢迎社区提供支持~

还可以参考这个：

Contributor guide

Tech stack
javagrpc
Domain
backendapi
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavagRPCNettyProtobuf
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Start by studying the referenced projects: Square's Wire (gRPC implementation), OpenTelemetry's ProtoFieldsWireHandler, Apache Dubbo's triple protocol, and Armeria's gRPC support. Understand how they implement gRPC over Netty with minimal dependencies. Then propose a minimal gRPC server for Arthas, focusing on bidirectional streaming and reduced dependencies. Collaborate with maintainers to define the exact scope and acceptance criteria.