The ELK / EFK Stack

Summary

Elasticsearch (storage/search), Logstash or Fluentd (log collection/processing), and Kibana (visualization) — a common open-source stack for centralizing and searching logs across many services.

How to Learn This

1Explore a hosted or local ELK/EFK stack demo to see log aggregation in action.
2Learn why centralized logging matters once you have more than a handful of servers to check.
3Understand the basic flow: logs collected, shipped, indexed, then searched/visualized.

Grafana Dashboards

Distributed Tracing (Jaeger, OpenTelemetry)

More topics in Monitoring & Observability

Monitoring vs Observability Metrics, Logs & Traces (The 3 Pillars)Prometheus Fundamentals Grafana Dashboards Distributed Tracing (Jaeger, OpenTelemetry)Alerting Best Practices SLIs, SLOs & Error Budgets Incident Response Basics

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