code: private void printMetaMasterInfo() throws IOException {
      mIndentationLevel++;
      Set<MasterInfoField> masterInfoFilter = new HashSet<>(Arrays
          .asList(MasterInfoField.LEADER_MASTER_ADDRESS, MasterInfoField.WEB_PORT,
              MasterInfoField.RPC_PORT, MasterInfoField.START_TIME_MS,
              MasterInfoField.UP_TIME_MS, MasterInfoField.VERSION,
              MasterInfoField.SAFE_MODE, MasterInfoField.ZOOKEEPER_ADDRESSES));
      MasterInfo masterInfo = mMetaMasterClient.getMasterInfo(masterInfoFilter);
  
      print("Master Address: " + masterInfo.getLeaderMasterAddress());
      print("Web Port: " + masterInfo.getWebPort());
      print("Rpc Port: " + masterInfo.getRpcPort());
      print("Started: " + CommonUtils.convertMsToDate(masterInfo.getStartTimeMs(),
          mDateFormatPattern));
      print("Uptime: " + CommonUtils.convertMsToClockTime(masterInfo.getUpTimeMs()));
      print("Version: " + masterInfo.getVersion());
      print("Safe Mode: " + masterInfo.getSafeMode());
  
      List<String> zookeeperAddresses = masterInfo.getZookeeperAddressesList();
      if (zookeeperAddresses == null || zookeeperAddresses.isEmpty()) {
        print("Zookeeper Enabled: false");
      } else {
        print("Zookeeper Enabled: true");
        print("Zookeeper Addresses: ");
        mIndentationLevel++;
        for (String zkAddress : zookeeperAddresses) {
          print(zkAddress);
        }
        mIndentationLevel--;
      }
    }
docs: Prints Alluxio meta master information.