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andrewhowdencom / courses.pito

Examples & assignments for the course "Practical introduction to Observability".
GNU Affero General Public License v3.0
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[Lecture] Counters #43

Closed andrewhowdencom closed 8 months ago

andrewhowdencom commented 9 months ago

Learning Goal

At the end of this lecture, learners should:

  1. Understand what a "counter" is in more detail
  2. Have implemented a "counter" in their sample application
  3. Be able to query for their counter in Prometheus a. Be able to understand and use the "Rate" function
  4. Be able to graph the counter in Grafana (time series vs. singlestat)
  5. Understand when to use the counter vs. Gauge or Histogram