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Observability metrics critical

Metrics & Monitoring Best Practices

Application metrics best practices with Prometheus, OpenTelemetry, custom instrumentation, dashboards, and alerting strategies.

Difficulty
intermediate
Read time
1 min read
Version
v1.0.0
Confidence
established
Last updated

Quick Reference

Prometheus Metrics: Use counter for totals (requests, errors), gauge for current values (connections, queue size), histogram for distributions (latency). Name format: namespace_subsystem_name_unit. Add labels for dimensions but keep cardinality low. RED method for services, USE for resources.

Use When

  • Setting up application metrics
  • Building Prometheus/Grafana dashboards
  • Implementing SLOs and alerting
  • Integrating OpenTelemetry metrics

Skip When

  • Simple applications without monitoring needs
  • Development-only environments

Metrics & Monitoring Best Practices

Application metrics best practices with Prometheus, OpenTelemetry, custom instrumentation, dashboards, and alerting strategies.

Tags

metrics prometheus opentelemetry monitoring observability

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