Observability

Observability is key in distributed system. It helps to understand and track the performance of a system. GoAkt offers out of the box features that can help track, monitor and measure the performance of a GoAkt based system.

Metrics

GoAkt comes bundled with the following metrics:

Actor System Metric

The Metric method on the actor system will provide the following counters:

• Total Number of actors in the system at a given point time

• Total Number of deadletters

• The number of seconds since the actor system started

PID metric

The Metric method on the PID will provide the following counters:

• Total Number of children at a given point in time

• Total Number of messages stashed at a given point in time

• Total Number of Restarts at a given point in time

• Last message received processing duration in milliseconds

• Total Number of deadletters

• The number of seconds since the actor started

Logging

A simple logging interface to allow custom logger to be implemented instead of using the default logger.