Monitoring

Observability

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

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.

Metrics

Quantitative measurements collected over time to track system performance, health, and business outcomes.

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 set of practices combining software development and IT operations to shorten the development lifecycle and deliver continuous value.

A quantitative measure of some aspect of the level of service being provided.

A deployment strategy that gradually replaces instances of the previous version with the new version.

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

A discipline applying software engineering principles to infrastructure and operations to create scalable, reliable systems.

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

A configuration management tool that automates the provisioning and management of infrastructure.

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