Spring Boot provides health indicators to monitor application health and database health with the help of Spring Boot Actuator. Spring Boot Actuator comes with various health indicators for most relational databases and non-relational databases like MongoDB, Redis, ElasticSearch, etc. Spring Boot Actuator also provides health indicators for RabbitMQ, and IBM MQ out of the box.

Why Choose Custom Health Checks

If we want to monitor the health status of the external services our application connects to, Spring Boot doesn’t provide any health indicators for this scenario out of the box, we need to write custom health indicators. Also, Spring Boot doesn’t provide any Kafka health indicator out of the box as of today, so in this scenario, we need to go for a custom health indicator.