@Override
    public void connect() {
        if (!isConnect) {
            this.getClient().connect();
            this.getDataCarrier().consume(new RemoteMessageConsumer(), 1);
            this.isConnect = true;
        }
    }
This is a wrapper of the gRPC client for sending message to each other OAP server. It contains a block queue to
buffering the message and sending the message by batch.
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/remote/client/GRPCRemoteClient.java