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Posted to notifications@dubbo.apache.org by "tubingbing (via GitHub)" <gi...@apache.org> on 2025/12/09 09:08:50 UTC
[I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
tubingbing opened a new issue, #15827:
URL: https://github.com/apache/dubbo/issues/15827
### Pre-check
- [x] I am sure that all the content I provide is in English.
### Search before asking
- [x] I had searched in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) and found no similar issues.
### Apache Dubbo Component
Java SDK (apache/dubbo)
### Dubbo Version
dubbo version 3.3.6 and openjdk17
### Steps to reproduce this issue
proto file:
```
syntax = "proto3";
package xxx.grpc.api;
option java_multiple_files = true;
option java_package = "xxx.grpc.api";
option java_outer_classname = "HelloWorldProto";
service MyService {
rpc SayHello (HelloRequest) returns (HelloReply) {}
rpc SayHelloServerStream (HelloRequest) returns (stream HelloReply) {}
rpc SayHelloClientStream (stream HelloRequest) returns (HelloReply) {}
rpc SayHelloBiStream (stream HelloRequest) returns (stream HelloReply) {}
}
message HelloRequest {
string name = 1;
}
message HelloReply {
string message = 1;
}
```
Compiling and packaging with grpc-java allows for the use of grpc's backpressure, while compiling with dubbo does not support the following code:
```
@GrpcService
public class MyServiceImpl extends MyServiceGrpc.MyServiceImplBase {
@Override
public StreamObserver<HelloRequest> sayHelloBiStream(StreamObserver<HelloReply> responseObserver) {
**ServerCallStreamObserver<HelloReply> serverObs = (ServerCallStreamObserver)responseObserver;
serverObs.disableAutoInboundFlowControl();**
........
}
}
```
### What you expected to happen
I want to know how to solve it
### Anything else
_No response_
### Are you willing to submit a pull request to fix on your own?
- [x] Yes I am willing to submit a pull request on my own!
### Code of Conduct
- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "wangchengming666 (via GitHub)" <gi...@apache.org>.
wangchengming666 commented on issue #15827:
URL: https://github.com/apache/dubbo/issues/15827#issuecomment-3693954301
will fix by https://github.com/apache/dubbo/pull/15931
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "EarthChen (via GitHub)" <gi...@apache.org>.
EarthChen commented on issue #15827:
URL: https://github.com/apache/dubbo/issues/15827#issuecomment-3718006788
https://github.com/apache/dubbo/pull/15967
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "wangchengming666 (via GitHub)" <gi...@apache.org>.
wangchengming666 commented on issue #15827:
URL: https://github.com/apache/dubbo/issues/15827#issuecomment-3631147870
cc @EarthChen
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "EarthChen (via GitHub)" <gi...@apache.org>.
EarthChen commented on issue #15827:
URL: https://github.com/apache/dubbo/issues/15827#issuecomment-3635089406
It seems that gRPC has iterated a new API, and Dubbo has not yet aligned with it temporarily. We will consider aligning the API in the future.
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "EarthChen (via GitHub)" <gi...@apache.org>.
EarthChen closed issue #15827: [Bug] Dubbo3 Triple protocol not support GRPC backpressure
URL: https://github.com/apache/dubbo/issues/15827
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Re: [I] [Bug] Dubbo3 Triple protocol not support GRPC backpressure [dubbo]
Posted by "LI123456mo (via GitHub)" <gi...@apache.org>.
LI123456mo commented on issue #15827:
URL: https://github.com/apache/dubbo/issues/15827#issuecomment-3705601504
I am interested in investigating this issue regarding Triple protocol backpressure support. I will start by analyzing the StreamObserver implementation in dubbo-rpc-triple.
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