Failure Engineering Explained by Uncle to Nephew — Episode 3: Failure Detection

Failure detection is crucial for identifying system issues before users notice them. The goal is to close the gap between failure occurrence and detection. Six tools can help: timeouts, health checks, heartbeats, logs, monitoring/metrics, and error responses. These tools don't fix problems but surface them quickly, allowing for prompt action. Engineers should be aware of the difference between a process being alive and being able to perform its job.