@Override
  public HardwareState getState() {
    return HardwareState.AVAILABLE;
  }
This datanode will always return an HTTP/2 port in {@link #getPortToConnectTo()} if enableHttp2Replication
is set to true.
@param enable http2 replication if it's true.
ambry-test-utils/src/main/java/com/github/ambry/clustermap/MockDataNodeId.java