@Override
    public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException {
        return grpcChannel.awaitTermination(timeout, unit);
    }
The reference count of current ExchangeClient, connection will be closed if all invokers destroyed.
remoting/remoting-triple/src/main/java/com/alipay/sofa/rpc/transport/triple/ReferenceCountManagedChannel.java