so, for distributed caching, my usual go-to moves include things like redis or memcached, you know.

hey everyone, ive been wrestling with cache invalidation in a distributed system lately. We're seeing some stale data issues. What approaches have you found effective for managing distributed caches? Are you using Redis, Memcached, or something else? How do you handle cache invalidation or expiration when data changes? Looking for practical advice and common pitfalls to avoid.