broker: add profiling

weed/messaging/client/client.go

@@ -23,12 +23,12 @@ func NewMessagingClient(bootstrapBrokers []string) (*MessagingClient, error) {
 		return nil, err
 	}
 
+	util.OnInterrupt(func() {
+		grpcConnection.Close()
+	})
+
 	return &MessagingClient{
 		bootstrapBrokers: bootstrapBrokers,
 		grpcConnection:   grpcConnection,
 	}, nil
 }
-
-func (mc *MessagingClient) Shutdown() {
-	mc.grpcConnection.Close()
-}