How does Redis eviction work in Spring Boot caching?

How does Redis eviction work in Spring Boot caching?

Redis eviction is a mechanism to remove keys from the cache when it reaches its memory limit. In Spring Boot, you can configure eviction policies like LRU (Least Recently Used) or LFU (Least Frequently Used) to manage cache size.

What are the different eviction policies available in Redis?

Redis supports several eviction policies, including LRU, LFU, TTL (Time to Live), and no eviction. Each policy has its use cases depending on your caching needs.

How can I configure these policies in my Spring Boot application?

You can configure eviction policies in your Spring Boot application by setting properties in your application.yml or application.properties file, or by using Java configuration.

Can you give an example of configuring LRU eviction in Spring Boot?

Sure! In your application.yml, you can set the cache properties like this: spring.cache.redis.cache-names: myCache and spring.cache.redis.cache-eviction-policy: LRU.