[GitHub] [dubbo] chickenlj commented on issue #8602: [2.7.13] 尚未完成异步回调的rpcContext被直接复用于后续dubbo调用处理，导致异步回调方法rpcContext里面的consumerURL并不是asyncRpcResult保存的对象

Tue, 21 Dec 2021 01:27:41 -0800 


chickenlj commented on issue #8602:
URL: https://github.com/apache/dubbo/issues/8602#issuecomment-998613793


   ```java
   new Thread(() -> {
       helloServiceMethodCallBack.sayHello("dubbo");
       helloServiceMethodCallBack2.sayHello("dubbo(2)");
   }).start();
   ```
   
   如果按照这个调用模型，理论上来说 `helloServiceMethodCallBack2.sayHello("dubbo(2)");` 
应该是用的一个全新的 RpcContext 实例，因为第一次 `helloServiceMethodCallBack.sayHello("dubbo");` 
调用后，Dubbo会通过 ConsumerContextFilter 清空之前生成的 RpcContext 实例。
   
   如下图 RpcContext.setRpcContext() 已经是一个全新的 RpcContext 实例
   
   
![image](https://user-images.githubusercontent.com/18097545/146905465-6b6414fe-9d20-4505-95ca-7ce0a11c3be1.png)
   


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