r Flink jobs.</p>
<h2 id="why-prometheus">
  Why Prometheus?
  <a class="anchor" href="#why-prometheus">#</a>
</h2>
<p>Prometheus is a metrics-based monitoring system that was originally created in 2012. The system is completely open-source (under the Apache License 2) with a vibrant community behind it and it has graduated from the Cloud Native Foundation last year – a sign of maturity, stability and production-readiness. As we mentioned, the system is based on metrics and it is designed to measure the o