[WARN] [retry_interceptor.go:62] [“retrying of unary invoker failed”] [target=endpoint://client-c2daf6e1-334f-4834-8fe3-ac6385140687/192.168.6.34:2379] [attempt=0] [error=“rpc error: code = DeadlineExceeded desc = latest connection error: connection error: desc = "transport: Error while dialing dial tcp 192.168.6.34:2379: operation was canceled"”]
请问这是什么问题引起的，PD进程报连接错误，如果得知tidb是什么时间连接断开过呢？
然后在192.168.6.34查看tidb错误日志有下面这第一条:
{“level”:“warn”,“ts”:“2025-09-04T16:45:39.467528+0800”,“logger”:“etcd-client”,“caller”:“v3@v3.5.10/retry_interceptor.go:62”,“msg”:“retrying of unary invoker failed”,“target”:“etcd-endpoints://0x4000f26e00/192.168.6.31:2379”,“attempt”:0,“error”:“rpc error: code = Unavailable desc = keepalive ping failed to receive ACK within timeout”}