[I] 一个stream卡住导致其他连接也无法建立 (brpc)

[via GitHub]

pavel2003 opened a new issue, #2847:
URL: https://github.com/apache/brpc/issues/2847

   **Describe the bug (描述bug)**
   
   client和server端建立stream用于传输数据，建好后直接sleep，此时重启server
   
   这个时候client的其他线程再和这个server端建立stream的时候，报 [E112]Not connected to
   
   查看对应socket状态
   
   # This is a broken Socket
   version=1
   shared_part={
     ref_count=1
     socket_pool=null
     creator_socket=1244
     in_size=71033083
     in_num_messages=8986
     out_size=139334
     out_num_messages=3799
   }
   nref=3
   nevent=1
   
   
   感觉是sleep的线程通过stream使用socket的引用计数+1，在sleep结束，close stream前，这个socket无法回收
   
   后续建立stream的时候都使用这个socket，但是这个socket是broken的
   
   
   **To Reproduce (复现方法)**
   
   
   **Expected behavior (期望行为)**
   这种情况是否应该强制回收stream和socket
   
   **Versions (各种版本)**
   OS:
   Compiler:
   brpc:
   protobuf:
   
   **Additional context/screenshots (更多上下文/截图)**
   
   


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