Open-source, scalable, and fault-tolerant MQTT broker able to handle 4M+ concurrent client connections, supporting at least 3M messages per second throughput per single cluster node with low latency delivery. The cluster mode supports more than 100M concurrently connected clients.
Is your feature request related to a problem? Please describe.
It would be nice to have a page on the UI to see all shared subscriptions, what clients are present in each group, etc.