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Posted to notifications@dubbo.apache.org by "Aetherance (via GitHub)" <gi...@apache.org> on 2026/02/06 22:07:44 UTC
[I] [BUG] TagRouter is bypassed when using v3 NewInstance API and Triple protocol [dubbo-go]
Aetherance opened a new issue, #3199:
URL: https://github.com/apache/dubbo-go/issues/3199
### ✅ 验证清单
- [x] 🔍 我已经搜索过 [现有 Issues](https://github.com/apache/dubbo-go/issues)，确信这不是重复问题
### 🚀 Go 版本
1.25.5
### 📦 Dubbo-go 版本
v3.3.1
### 🖥️ 服务端配置
_No response_
### 💻 客户端配置
_No response_
### 🌐 协议配置
triple
### 📋 注册中心配置
zookeeper v3.9.0
### 💾 操作系统
🐧 Linux
### 📝 Bug 描述
在 dubbo-go v3 NewInstance API 模式下，TagRouter 失效。即便设置了 force.tag=true，请求仍会绕过路由逻辑发送到不匹配的实例。
### 🔄 重现步骤
server:
```go
func main() {
ins, _ := dubbo.NewInstance(
dubbo.WithName("reproduce-server"),
dubbo.WithRegistry(registry.WithZookeeper(), registry.WithAddress("127.0.0.1:2181")),
)
srv, _ := ins.NewServer(server.WithServerProtocol(protocol.WithTriple(), protocol.WithPort(20001)))
greet.RegisterGreetServiceHandler(srv, &GreetServiceHandler{})
srv.Serve()
}
```
client:
```go
func main() {
ins, _ := dubbo.NewInstance(
dubbo.WithRegistry(registry.WithZookeeper(), registry.WithAddress("127.0.0.1:2181")),
)
cli, _ := ins.NewClient()
svc, _ := greet.NewGreetService(cli)
time.Sleep(10 * time.Second) // wait for discovery
ctx := context.WithValue(context.Background(), constant.AttachmentKey, map[string]string{
"dubbo.tag": "not-exist-tag",
"dubbo.force.tag": "true",
})
resp, err := svc.Greet(ctx, &greet.GreetRequest{Name: "Dubbo"})
fmt.Printf("Response: %v\nError: %v\n", resp, err)
}
```
### ✅ 预期行为
在设置 `"dubbo.force.tag": "true"` 时，dubbo-go 应该遵守路由规则。如果没有能够满足路由规则的节点，rpc 调用应该返回 error No provider available for the service。Response 应为 nil，且本次 rpc 调用失败
### ❌ 实际行为
实际输出:
```
Requesting with tag: not-exist-tag, force: true
Response: greeting:"Hello Dubbo, (Port: 20001, StaticTag: no-tag)"
Error: <nil>
```
### 💡 可能的解决方案
_No response_
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Re: [I] [BUG] TagRouter is bypassed when using v3 NewInstance API and Triple protocol [dubbo-go]
Posted by "Aetherance (via GitHub)" <gi...@apache.org>.
Aetherance commented on issue #3199:
URL: https://github.com/apache/dubbo-go/issues/3199#issuecomment-3862777974
pr #3185 did not fix this bug
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Re: [I] [BUG] TagRouter is bypassed when using v3 NewInstance API and Triple protocol [dubbo-go]
Posted by "yangpixi (via GitHub)" <gi...@apache.org>.
yangpixi commented on issue #3199:
URL: https://github.com/apache/dubbo-go/issues/3199#issuecomment-3863743257
我这边测试pr #3185 已经修复这个bug
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Re: [I] [BUG] TagRouter is bypassed when using v3 NewInstance API and Triple protocol [dubbo-go]
Posted by "Aetherance (via GitHub)" <gi...@apache.org>.
Aetherance closed issue #3199: [BUG] TagRouter is bypassed when using v3 NewInstance API and Triple protocol
URL: https://github.com/apache/dubbo-go/issues/3199
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