@Override
  public void shutdown() {
    super.shutdown();
    if (this.communicator != null) {
      this.communicator.stop();
    }
  }
, renewer=hive, realUser=, issueDate=1670317803579, maxDate=1671527403579,
sequenceNumber=297, masterKeyId=296, cluster ***, app ID , signing false) can't be found in cache"
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskCommunicator.java