[keycloak-dev] Cache policies and cache clearing

I found out that if you call cache.clear() with a invalidation cache, it only clears locally and not the entire cluster. I was thinking that we could set a realm attribute of "not-valid-before" with a timestamp. When something is accessed, check the timestamp vs. the time the thing was inserted into the cache. This is also important for the fine-grain cache policies I want to implement for users. I want cache policies for users. Scheduled evictions and/or max time in the cache. There could be realm-level policies for all users everywhere, and per storage provider. I also want the ability to clear the cache for a specific provider manually. Using the Infinispan stream() api, IMO, is just not feasible. We don't want to be iterating over thousands of users in the cache to see if they should be invalidated or not. There's also the issue of making sure this happens cluster-wide. So instead, just do a simple timestamp check when the user is accessed. Bill