Open-IM-Server/config/openim-msgtransfer.yml

prometheus:
  # Enable or disable Prometheus monitoring
  enable: true
  # List of ports that Prometheus listens on; each port corresponds to an instance of monitoring. Ensure these are managed accordingly
  # Because four instances have been launched, four ports need to be specified
  ports: [ 12020, 12021, 12022, 12023, 12024, 12025, 12026, 12027, 12028, 12029, 12030, 12031, 12032, 12033, 12034, 12035 ]