JavaScript Jabber

Deep Dive into Metrics and Monitoring with Prometheus and Grafana - JSJ 645

14 snips
Aug 20, 2024
This episode blends fantasy literature and tech insights. Discover the fascinating link between The Hobbit and wartime translation. Dive into the dynamic world of Prometheus and Grafana for app monitoring, exploring event loop lag and memory management in JavaScript. Learn about real-time alerting, effective data collection, and the art of performance metrics. Enjoy discussions on strategic board games like Letters from Whitechapel while uncovering productivity hacks that keep the hosts at the top of their game. A delightful mix of stories and technical prowess!
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ADVICE

Measure Before You Improve

  • Do not start improving a system without first having proper monitoring and alerting in place.
  • Ensure you measure key metrics so you can prove improvements and understand impacts effectively.
INSIGHT

Prometheus Uses Pull Model

  • Prometheus pulls metrics from monitored services instead of receiving pushed data.
  • This pull model centralizes configuration and makes scaling and multi-server setups easier.
ADVICE

Use Prometheus Clients for Easy Setup

  • Use Prometheus clients like prom-client in Node.js to automatically collect system metrics.
  • Simply add the client to your service and expose metrics on an HTTP endpoint for Prometheus to pull.
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