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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/03/07 02:10:05 UTC
[GitHub] [dubbo] leyou240 opened a new issue #9739: triple生成的客户端，访问grpc服务
leyou240 opened a new issue #9739:
URL: https://github.com/apache/dubbo/issues/9739
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## Ask your question here
背景是这样的，我们有一个其他语言的grpc服务。
然后我们java这边想使用triple协议生成的客户端来访问这个服务。
通过相关文档的阅读，我认为triple也是兼容grpc的
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[GitHub] [dubbo] leyou240 commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
leyou240 commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1070355731
目前按照建议，将两者保持一致依然有问题。unknown method sayHello for service helloworld.v1.Greeter
期待新版本的修复~
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1070902104
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1070902104
@leyou240
问题是这样的，客户端的方法描述是通过反射获取 class name 和 method name，根据 java 规范，方法名首字母应该小写，但是你的 proto 中方法首字母是大写。
目前 triple 的 client 请求的 url 为 `helloword.v1.Greeter/sayHello`
但你的 grpc server 暴露的method 为 `helloword.v1.Greeter/SayHello`
所以会报上述错误
---
该问题目前只能等待我们在新版本修复。
ps: 如果你用 grpc 的 client 调用 triple 的 server 目前这样是可以的，目前服务端有做兼容处理
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1060223838
https://github.com/apache/dubbo-samples/tree/master/dubbo-samples-triple
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1060118155
所以，你的问题是什么
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1071952920
> 是的，我们目前的解决方案确实是用的grpc的client。 麻烦你们修复了，及时通知
如果你的 proto 文件中将方法名改为小写开头目前就是可以的 `SayHello` --> `sayHello`
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[GitHub] [dubbo] EarthChen commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1069177970
@leyou240
我这边已经发现了问题 这是个已知问题，等待我们修改 compiler 插件即可
此时生成的 client 调用的是如下接口
<img width="1261" alt="image" src="https://user-images.githubusercontent.com/20179425/158609240-cfb45201-06fb-4e3c-afcf-d0f28dc0411a.png">
但是实际 grpc 暴露的 url 为如下
<img width="732" alt="image" src="https://user-images.githubusercontent.com/20179425/158609448-bb0072ad-9370-4ee7-800f-138bb8fff87e.png">
造成问题的原因来源于 dubbo 是通过反射生成请求 path，这个在未来版本会跟 stub 的支持一起发布。
## 临时解决方案:
将如下两者保持一致
<img width="785" alt="image" src="https://user-images.githubusercontent.com/20179425/158609984-0914d970-d263-4bd4-9bf8-5e1caf1c404d.png">
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[GitHub] [dubbo] leyou240 commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
leyou240 commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1068937642
https://github.com/leyou240/triple-consumer
@EarthChen 请看这个代码，readme中有详细描述。我用go写的grpc服务，用triple生成的客户端，无法访问。
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[GitHub] [dubbo] leyou240 commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
leyou240 commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1071939692
是的，我们目前的解决方案确实是用的grpc的client。
麻烦你们修复了，及时通知
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[GitHub] [dubbo] leyou240 commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
leyou240 commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1071939692
是的，我们目前的解决方案确实是用的grpc的client。
麻烦你们修复了，及时通知
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[GitHub] [dubbo] leyou240 commented on issue #9739: triple生成的客户端，访问grpc服务
Posted by GitBox <gi...@apache.org>.
leyou240 commented on issue #9739:
URL: https://github.com/apache/dubbo/issues/9739#issuecomment-1060171284
有例子吗？请问
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