Caching Flashcards
1
Q
What is caching?
A
Caching is the process of sorting recently generated results in memory. The result can then be used again when requested instead of going back to its original source.
2
Q
How do we deal with stale data when we cache?
A
Generally, you want to set some sort of expiration on your cache system. cached data should only exist for a period of time.
3
Q
What is Memcached?
A
memcached is a memory-based cache framework. it takes a piece of memory and converts it to cache space. Memcached can run on multiple servers and share cache on multiple servers.
4
Q
what are some of the differences between Memcached and Redis?
A
Redis supports complex data types, offers data persistence, and has a different memory management scheme.
