@Override
  protected String getSenderHost() {
    final IClientSession session = SESSION_MANAGER.getCurrSession();
    return session != null ? session.getClientAddress() : "unknown";
  }
Used to construct pipe related procedures
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/pipe/receiver/protocol/IoTDBConfigNodeReceiver.java