I'm working on a custom exporter, using the prometheus_client python library. I've read the documentation about auto_describe but it's not clear.
With auto_describe=True, the collect() method runs twice on each scrape. This is bad because it puts extra load on the target device. I can fix this by adding a describe() method that returns an empty list. That's easy, but I want to follow best practices. Is there any reason I should return a proper list of metrics instead? If I did want to implement a proper describe method, would it need to return a list of GaugeMetricFamily objects with name, help text, and labels? It seems like a lot of duplicated code with the collect() method... Are there any good example exporters to look at? My code is here: https://gist.github.com/llamafilm/0c2ce612273db11ad9d8edcd0643ab44 I'd be happy to hear any other feedback too since this is my first exporter. Thanks! -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/prometheus-users/1c343982-5693-426c-b6ef-f96bc8139526n%40googlegroups.com.
