prometheus

prometheus

August 15, 2026

How We Cut Our Prometheus / VictoriaMetrics Storage Bill by 60% (Cardinality Audit Walkthrough)

The bill that made me open a support ticket with myself Last October our VictoriaMetrics cluster crossed 340 million active time series and our monthly infra cost for the storage tier hit $4,900. Nobody had approved that number. It just… grew, the way disk usage always grows, one Helm chart install at a time until finance asks why the “monitoring” line item is bigger than the “database” line item. I spent the better part of a week doing a cardinality audit on that cluster.

prometheus
August 12, 2026

Fixing alert fatigue: what actually works

Every noisy alert your team learns to dismiss makes the real one easier to miss too. Here's how alert fatigue actually happens, and how to fix it.

January 10, 2026

Monitoring stack for a fintech platform

Prometheus, Grafana, and alerting rollout that cut incident response time by 50%.

October 14, 2025

Using Labels and Relabeling in Prometheus for Clean, Scalable Metrics

I’ll admit it: the first time I looked at a raw Prometheus metrics endpoint, I felt a bit overwhelmed. It was like staring at a tangled ball of yarn, with metric names and labels sprawling in every direction. I was collecting thousands of time series, but finding the specific signal in the noise felt nearly impossible. That’s when I truly understood the power of labels and relabeling in Prometheus. They aren’t just decorative tags; they’re the fundamental tools for organizing your metrics universe.

September 30, 2025

How to Set Up Prometheus Remote Write to Push Metrics to VictoriaMetrics

I’ve been running my own monitoring stack for years, and if there’s one thing I’ve learned, it’s that Prometheus alone can feel like trying to store all your holiday decorations in a single shoebox. It works fine at first, but soon you’re dealing with capacity issues and wondering where that one crucial metric from three months ago disappeared to. That’s why I recently set up Prometheus remote write to push metrics to VictoriaMetrics for centralized, long-retention storage.

September 2, 2025

Detect Outliers in Your Metrics: A Practical Guide to Grafana Machine Learning

I’ve always been the kind of person who stares at a Grafana dashboard, watching a squiggly line, and wondering, “Is that dip normal? Should I be worried?” For years, my answer was to set up a basic threshold alert. If CPU usage goes above 90%, page someone. But what about the weird, subtle stuff? The slow creep of memory leakage or the sudden, inexplicable drop in request rate that doesn’t cross any static line but just feels… off?

August 26, 2025

Monitor Home Internet Speed Automatically with Prometheus and Speedtest Exporter

I've been battling my internet service provider for months over sporadic slowdowns that always seem to happen right before my important video calls. Sound familiar? After one too many "everything looks fine on our end" responses, I decided to take matters into my own hands and build a system that automatically tracks my internet speed 24/7. In this tutorial, I'll show you how to set up your own internet speed monitoring system using Prometheus and a Speedtest Exporter.

August 12, 2025

Using PromQL to Analyze CPU, Memory, and Network Metrics Effectively

If you’ve ever stared at a Grafana dashboard wondering why your server’s CPU is spiking like a caffeinated squirrel, you’re not alone. Prometheus and PromQL are my go-to tools for making sense of infrastructure metrics—once you get the hang of them, they’re like having X-ray vision for your systems. In this guide, I’ll walk you through writing effective PromQL queries to monitor CPU, memory, and network performance. Whether you’re debugging a mysterious latency issue or just keeping an eye on resource usage, these tips will save you hours of head-scratching.

July 22, 2025

Prometheus vs VictoriaMetrics: Performance, Storage, and Query Language Compared

I’ve spent years tinkering with monitoring tools—first as a hobbyist automating my smart home, then professionally while scaling observability pipelines. Two names kept popping up: Prometheus (the de facto standard) and VictoriaMetrics (the “faster, cheaper” alternative). But which one should you use? Let’s break it down with real-world benchmarks, storage deep-dives, and query language quirks. Why Compare Prometheus and VictoriaMetrics? Prometheus is the Kubernetes-monitoring darling, but VictoriaMetrics promises better performance with lower resource usage.

July 15, 2025

Building a Monitoring Stack with Prometheus, VictoriaMetrics, and Grafana: A Full Setup Guide

Ever found yourself drowning in server logs, wondering why your application crashed again at 3 AM? I’ve been there—more times than I’d like to admit. That’s why I built a robust monitoring stack with Prometheus, VictoriaMetrics, and Grafana to keep an eye on my systems. In this guide, I’ll walk you through setting up this powerful trio to collect, store, and visualize metrics at scale—without losing your sanity. Why This Stack?