dubbo grpc 协议，server 重启以后，client 不能重连， channel 已经关闭。

dubbo grpc 协议，server 重启以后，client 不能重连， channel 已经关闭。
https://github.com/apache/ratis/pull/206

dubbo 2.7.15，api 调用方式，不是spring

Start by reproducing the failure with Dubbo 2.7.15 using the API invocation style rather than Spring, then restart the server and observe the client's gRPC channel. Compare the behavior with the linked Apache Ratis pull request. Done means the client reconnects successfully after the server restarts instead of remaining on a closed channel.

Written by the indexing model from the issue text.