Health Checks & Resilience Patterns
Design robust health checks, implement circuit breakers, and apply other resilience patterns for fault-tolerant systems.
Introduction to Health Checks
In production, applications need to be robust. Health checks are automated ways to verify if an application or service is running correctly and ready to receive traffic.
- They tell orchestrators (like Kubernetes) if your app is alive.
- They prevent traffic from being sent to unhealthy instances.
- They help in automatic recovery and scaling decisions.
Spring Boot Actuator Health
Spring Boot Actuator provides a built-in /actuator/health endpoint. By default, it aggregates health information from various components like databases, disk space, and more.
When accessed, it returns a status, typically UP or DOWN, along with details about included components.
All lessons in this course
- Kubernetes Orchestration Basics
- Distributed Tracing with Sleuth & Zipkin
- Health Checks & Resilience Patterns
- Metrics and Dashboards with Micrometer and Prometheus