Posted inMonitoring
Advanced PromQL: Don’t Let “Average Numbers” Mislead You
Don't be fooled by averages. Learn how to use Histogram Quantiles and Subqueries in PromQL to measure P99 latency and optimize your monitoring system.
Posted inMonitoring
Monitoring Traefik Reverse Proxy with Prometheus and Grafana: Tracking Request Rate, Error Rate, and Latency
A guide to enabling the Prometheus metrics endpoint on Traefik v3, setting up Docker Compose for the full monitoring stack, and building a Grafana dashboard with PromQL queries to track request rate, error rate, and P95 latency per service. Includes alert rules for automatic notifications when issues arise.
Posted inMonitoring
Prometheus Recording Rules and Alerting Rules: Optimize Queries and Build Reliable Alerts for Production
Prometheus Recording Rules speed up Grafana dashboards by pre-computing complex metrics on a schedule. Combined with properly configured Alerting Rules — using the `for` parameter appropriately — you eliminate alert flapping and build a reliable alerting system for production environments.