Reliable Insights

A blog on monitoring, scale and operational Sanity

February 26, 2018

Dude, where’s my exporter?

So you have just discovered Prometheus and want to try it out or use it to replace your old monitoring system but have run into a part of your stack that you cannot instrument with a client library and for which there are no officially supported exporters. What do you do?

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September 25, 2017

Percentages go from 0 to 100, Ratios go from 0 to 1

While doing research for implementing exporters, I've noticed some confusion around ratios and percentages that I'd like to clear up.

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August 19, 2015

Writing JSON Exporters in Python

A common question is is there a way to ingest JSON metrics from a random system into Prometheus? It's not possible to extract useful metrics from an arbitrary JSON blob, so that's not something the can be offered out of the box. However it's easy to write an exporter in Python to produce meaningful metrics.

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