The Sixth Sense: Finding “Dead” Metrics and Silent Alerts in Your Monitoring

Are all those metrics you collect actually earning their keep? And what about alert rules—how many are silently broken, doomed never to fire? Monitoring nowadays is efficient enough to store billions of unique time series. But do all the series you store actually “pay the rent”? In this talk, Roman shows how to hunt down “ghost” metrics and “silent” alerts using the VictoriaMetrics ecosystem. You’ll learn:

– How to spot time-series that no one has queried in months
– Hints to find alerting rules that can never trigger
– A repeatable workflow for pruning data without risking blind spots

Trim the noise, shrink your storage footprint, and reclaim performance—because the cheapest metric is the one you never write.

Speaker

  • Roman Khavronenko
    Roman Khavronenko
    VictoriaMetrics

    Roman is a software engineer with experience in distributed systems, databases, monitoring, and high-performance microservices. Roman’s passion is open source and he’s proud to have contributions to Prometheus, Grafana, and ClickHouse. Currently, Roman is working on the open source time series database and monitoring solution VictoriaMetrics.

Date

Nov 19 2025
Expired!

Time

09:30 - 10:15

Location

Jacobi