Metrics about subscription queries

Hi, in the Axon Server UI there are some metrics about subscription queries in section Messages/Queries. Can you explain what these numbers mean? This is what I think it is:

  • Name: Name of the subscription query
  • Total subscriptions: Number of total subscription this server has got, including closed ones? Does this number increase, but never decrease?
  • Active subscriptions: Number of currently active subscriptions, will decrease if one gets closed?
  • Number of updates: Number of updates emitted? Does this number increase, but never decrease?

Additional question: What impact do subscription queries have on Axon Server 2025? What number correlates with memory and/or CPU usage?

Best regards,
Matthias