I am deploying a spring boot application with redis as caching service. I was trying to reload my cache my rebooting my application, but the cache is not rebuild again. How can i forcefully evict the cache from redis and reload the application?

[Basil Abraham]

 

[Daniel Mikusa]

A few options come to mind:

• Mark an endpoint as @CacheEvict - https://docs.spring.io/spring/docs/5.1.8.RELEASE/spring-framework-reference/integration.html#cache-annotations-evict
• This shows how to schedule the cache to be cleaned periodically - https://stackoverflow.com/a/41022526, but you could also grab the CacheManager on start and do the same thing. There's a number of ways to run something on start up, see https://stackoverflow.com/questions/2401489/execute-method-on-startup-in-spring
• When you stop your app, use the `redis` cli to drop data. The command `FLUSHDB` or `FLUSHALL` will take care of that for you. https://redis.io/commands/flushdb or https://redis.io/commands/flushall

[Basil Abraham]

Ok, how will i connect to Redis using CLI, will i get host name details for redis service?

[Daniel Mikusa]

You can, yes. If it's bound to your app you can run `cf env` and see the credentials in VCAP_SERVICES, or you can create a service key and use the credentials bound to your service key.