Caching
There are a few ways to update our cache:
Cache eviction
- LRUCache can be used for cache eviction
Cache staling
- When no one used the cache and there is no eviction happens, cache can be stale.
- To deal with it we can set a TTL and then try to expire the item
- We can:
- Passively expire an item — when an item got accessed it checks for TTL to expire
- Actively expire item — have a thread to go through and query the expiration cache
Security
- Networking/Firewall
- Encryption