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kontainers / micrometer-akka

A library for monitoring Akka that uses Micrometer metrics
Apache License 2.0
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actor count #106

Open biandratti opened 3 years ago

biandratti commented 3 years ago

Dear all,

Recently I started to integrate micrometer-akka in my project. And I have a question regarding the calculation of count of actors. I used the metric “app_akka_actor_group_actor_count”, but occasionally I recibe negative numbers. I'm sure that it is the metric name, but I don't understand this number. Anybody can recommend other metrics? Maybe it is an issue?

Best regards, Maxi

pjfanning commented 3 years ago

This project is no longer under active development. All I can do is direct you to https://github.com/kontainers/micrometer-akka/blob/master/README.md as it has some description of the metrics and the setup.

The way the counts are calculated may depend on the micrometer registry you are using (eg Prometheus). The actor counts are incremented and decremented as actors are created and removed - but it wouldn't shock me to hear that there are circumstances where the counts go below zero. If you could provide a reproducible use case, we might be able to do a fix based on debugging the use case.