The 3 Pillars

1. Logs tell the story. They provide rich context about specific events, including errors, warnings, and successful actions. This detail allows you to pinpoint the "what" and "when" of an issue.
2. Metrics show the vitals. Metrics offer a real-time overview of key performance indicators (KPIs) like CPU usage, memory consumption, or response times. They help you understand the "how well" a system is performing and identify potential bottlenecks.
3. Traces map the journey. Traces track the individual journey of a request as it travels through different parts of a system. This helps you pinpoint the exact location of an issue and understand the "why" behind performance problems.