Processing Time, Time in Mailbox, Mailbox Size and Errors.
Processing Time, Pending Work across routees, Time in Mailbox, Routing Time and Errors.
Completed Tasks, Queued Tasks and Thread-related metrics.
Actor Groups Metrics
Define arbitrary Actor Groups and Track their Processing Time, Time in Mailbox, Pending Work, Member Count
Get an overview of the Actor System state showing Unhandled Messages, Dead Letters, Active Actors and Throughput.
Track Shards and Regions Distribution, Entity's Processing Time, Time in Mailbox, Pending Work and Errors.