Metrics

Observability

The ability to understand a system's internal state from its external outputs, encompassing metrics, logs, and traces.

Monitoring

The continuous observation of system performance, availability, and health using automated tools and dashboards.

Logging

The practice of recording events, errors, and system activities for debugging, auditing, and analysis.

Distributed Tracing

A method of tracking requests as they flow through distributed systems to diagnose latency and failure points.

Alerting

Automated notifications triggered when system metrics or conditions exceed predefined thresholds.

Prometheus

An open-source monitoring and alerting toolkit designed for reliability and scalability in cloud-native environments.

Grafana

An open-source analytics and visualisation platform for monitoring metrics from multiple data sources.

Error Budget

The maximum amount of time a service can be unavailable within a given period based on its SLO.

A system design approach that ensures a certain degree of operational continuity during a given measurement period.

An open-source automation tool for configuration management, application deployment, and task automation.

The discipline of experimenting on distributed systems to build confidence in their ability to withstand turbulent conditions.

A documented set of procedures for handling routine operations and troubleshooting common issues.

The average time between system failures, measuring reliability and availability.

An automated workflow that builds, tests, and deploys software changes from development to production.

A collaboration model connecting tools, processes, and automation with team chat platforms for operations management.

An approach where infrastructure components are never modified after deployment but replaced entirely with updated versions.