The VictoriaMetrics Observability Blog

Blog posts

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  • Go @ VictoriaMetrics
  • Open Source Tech

  Understanding Go's sync.Map from API to Hash Trie

  Go’s sync.Map now uses a hash trie. This article builds the implementation from a normal map, then explains lock-free reads, fine-grained writer locking, collisions, retries, deletion, Clear, Range, and the trade-offs against map plus RWMutex.

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  • Company News

  Open Source Is Good Marketing

  Open source and commercial marketing often seem at odds, but open source often needs marketing, and open source itself is often good marketing. This blog post explains how open source supports our marketing goals and how we use marketing to support open source growth.

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  • Observability
  • Monitoring

  Observability's Sixth Sense: Grounding Anomaly Detection in Reality

  Learn how VictoriaMetrics combines machine learning, MCP, and natural-language workflows to simplify observability with anomaly detection and reduce operational overhead.

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  • Observability
  • Product News

  What's new in VictoriaMetrics Anomaly Detection (Q2 2026)

  The Q2 2026 vmanomaly update introduces Temporal Envelope, a redesigned UI, faster online-model execution, and an AI-assisted workflow that turns natural-language monitoring goals into tested configurations and alerting rules.

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  • Product News
  • Company News

  VictoriaMetrics July 2026 Ecosystem Updates

  VictoriaMetrics July updates bring a new LTS release, vmestimator, and a set of improvements across the stack that make operations simpler and observability more practical.

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  • Go

  Go 1.27 interactive tour

  An interactive tour of what’s new in Go 1.27: every notable language, runtime, and standard library change, with short runnable examples you can edit and run in the browser.

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  • Product News

  What's New in VictoriaMetrics Cloud Q2 2026? Transparent Credits, Navigation Improvements, and a New Path for Cluster Tiers

  Q2 2026 brought transparent credits reporting for prepaid billing, many navigation improvements across the console, progress on SOC 2, and a first look at the compute-based model that will reshape how VictoriaMetrics Cluster is sized and priced.

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  • Observability
  • Monitoring
  • OpenTelemetry

  GPU Observability with the OpenLIT Collector and the VictoriaMetrics observability stack

  Monitor NVIDIA, AMD, and Intel GPUs with the OpenLIT OpenTelemetry GPU Collector and the VictoriaMetrics stack: eBPF CUDA kernel tracing, OTel hardware semantic conventions, MetricsQL queries, recording rules, and alerts.

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  • Performance
  • Time Series Database
  • Monitoring

  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