The VictoriaMetrics Observability Blog

Announcing vmestimator: Real-time Cardinality Estimations for VictoriaMetrics and Prometheus

vmestimator is a new open-source tool that estimates metric cardinality in real time. It can alert to high-cardinality spikes before they slow queries and increase resource usage. Works with any Prometheus-compatible setups, Grafana, and vmalert

VictoriaMetrics 2026 Mid Year Roundup

Take a look at what we shipped in the first half of 2026 across VictoriaMetrics: metrics, logs, traces, and cloud,with improvements in performance, scalability, and usability.

How VictoriaLogs Stores Your Logs in a Columnar Layout

A beginner-friendly tour of how VictoriaLogs stores your logs on disk: streams and daily partitions, immutable parts, blocks and columns, and the files inside a part (timestamps, values, bloom filters, column headers, and the two-level index) that let a query read only the bytes it needs.

VictoriaMetrics May 2026 Ecosystem Updates

May 2026 VictoriaMetrics release roundup: v1.144.0 brings 15 bug fixes and 9 UX improvements for reliability and observability, while v1.143.0 adds native Prometheus histogram ingestion support across vmagent, vmsingle, and vminsert. Also includes the first LTS release for VictoriaMetrics Operator.

Operator now has Long-Term Support (LTS) version

VictoriaMetrics Operator introduces Long-Term Support (LTS) releases starting with v0.68.x, ensuring stability and a predictable upgrade path for users.

How Airbnb Built a High-Volume Metrics Pipeline with OpenTelemetry and vmagent

Learn how Airbnb rebuilt its observability pipeline with OpenTelemetry and vmagent to handle over 100 million samples per second, reduce cost by 10x, and simplify high-scale metrics aggregation.

Multi-tiered Observability: A Practical Way to Handle Diverse Workloads

Discover multi-tier observability architecture with VictoriaMetrics OSS. Learn how to isolate default, high-cardinality, and business-critical workloads into separate tiers with optimized retention periods, ingestion resolution, cardinality limits, alerting policies, and cost controls.

VictoriaMetrics April 2026 Ecosystem Updates

VictoriaMetrics April 2026 release round‑up: heads up about critical VictoriaMetrics bugfixes in v1.141.0–v1.142.0, and explore new VictoriaLogs features including Splunk ingestion and advanced LogsQL tooling.