Infrastructure●●Solid
I built a tool that finds unused Prometheus metrics
Cross-references query logs, rules, and Grafana to find unused metrics.
Solve My ProblemNiche Gem
dhei123
2222d ago
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🔭 Drop-in Prometheus wrapper that caps metric cardinality at the source before unbounded labels OOM your monitoring stack.
2 starsGo
Promcap – cap Prometheus metric cardinality before it OOMs your stack
by eben-vranken·Jun 16, 2026·1 point·0 comments
AI Analysis
●●●BangerSolve My ProblemBig BrainSlick
Drop-in Prometheus wrapper caps cardinality at source before runaway labels OOM your stack.
Strengths
- •Enforces ceiling in-process at series creation—unbounded growth never reaches the registry.
- •Overflow series collapses to __overflow__ label keeping dashboards functional during incidents.
- •Drop-in replacement for CounterVec, GaugeVec, HistogramVec with identical API plus CapOpts.
Weaknesses
- •Go-only implementation excludes Python, Java, and other Prometheus client ecosystems.
- •Teams need to proactively wrap metrics—doesn't protect existing uninstrumented code.
Category
Target Audience
Backend engineers running Prometheus monitoring stacks
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