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[GitHub] [dubbo] zhuangjinjin edited a comment on issue #9092: A proposal of support HTTP2 connection Keepalive

zhuangjinjin edited a comment on issue #9092:
URL: https://github.com/apache/dubbo/issues/9092#issuecomment-948768558


   ![grpc keepalive](https://user-images.githubusercontent.com/3142281/138316820-0dac9897-2893-4817-9d9c-98e9419c365a.png)
   I talk about something what I understanding.
   * I thought it turns to `IDLE` when connection have not any active stream. and KeepAliveManager might schedule to send ping frame to keep connection alive. and stop send ping frame when connection have any active stream. 
   * It would close the connection when it have not received ping ack timeout.
   
   > Aggreed ! Could you provide a description when should send a `keepalive ping` and when turns to `IDLE`? When sending a new request , will the connnection reconnect and turn to active?
   
   


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