The VictoriaMetrics Observability Blog

VictoriaMetrics at KubeCon: Optimizing Tail Sampling in OpenTelemetry with Retroactive Sampling

If you’ve been struggling with the high resource overhead of tail sampling, check out retroactive sampling, an approach that significantly reduces sampling overhead for distributed tracing in OpenTelemetry.

VictoriaMetrics March 2026 Ecosystem Updates

March 2026 VictoriaMetrics Stack releases deliver Grafana Cardinality Explorer, VMUI pagination, JWT auth enhancements, log UI sidebar, and Kubernetes log enrichment for scalable observability. Upgrade now for better UI usability, query performance, and production-ready monitoring workflows.

Observability Lessons From OpenAI

OpenAI applies observability to autonomous AI agents using the VictoriaMetrics Stack and OpenTelemetry. Learn to build your own local setup with metrics, logs, and traces that help LLMs test, benchmark, and iterate autonomously.

Benchmarking Kubernetes Log Collectors: vlagent, Vector, Fluent Bit, OpenTelemetry Collector, and more

We benchmarked vlagent, Vector, Fluent Bit, Filebeat, Fluentd, Promtail, Grafana Alloy, and OpenTelemetry Collector on throughput, resource usage, and delivery correctness - and found correctness issues that most benchmarks overlook.

VictoriaMetrics February 2026 Ecosystem Updates

February 2026 updates deliver new LTS support, VMUI memory insights, queue alerts, jsonline output, resizable Web UI tables, and automatic snapshot expiry across the VictoriaMetrics Observability Stack.

VictoriaMetrics at FOSDEM, Cloud Native Days France, and CfgMgmtCamp Ghent

A developer-focused recap of VictoriaMetrics’ participation at FOSDEM, Cloud Native Days France and CfgMgmtCamp, highlighting open source observability, community feedback and real-world engineering perspectives.

VictoriaLogs in VictoriaMetrics Cloud: Fast, Cost-Effective Log Management is Here

Announcing VictoriaLogs in VictoriaMetrics Cloud: fast, cost-effective log management with native OpenTelemetry support, LogsQL for powerful analysis, and integrations with Grafana and Perses for complete observability monitoring, is the best option to save costs when compared to other alternatives like ElasticSearch or Datadog.

What’s new in VictoriaMetrics Anomaly Detection (2025)

VictoriaMetrics Anomaly Detection has had a productive year with lots of user feedback that has had a major impact on product development. We’ve added improvements across the board: in core functionality, simplicity, performance, visualisation and AI integration. In addition to bug fixes and speedups, below is a list of what was accomplished in 2025.

VictoriaMetrics January 2026 Ecosystem Updates

January 2026 updates deliver quality of life improvements, performance optimizations, and tighter Kubernetes integration across the VictoriaMetrics Observability Stack.

VictoriaLogs Basics: What You Need to Know, with Examples & Visuals

Cluster mode in VictoriaLogs is not a separate build. It is the same victoria-logs binary started with different flags, so you can scale out without a migration step. Storage nodes persist data on disk, while gateway nodes can stay stateless by pointing to storage with -storageNode. It also ships with practical safety switches, like read-only protection when -storageDataPath runs low and optional partial results when a storage node is down.