Difference between memcache, memcached and redis

Question

We are currently using memcache for storing session data. I have heard that memcached or redis are better. I need to understand what is the difference between them? in order to understand which one is the best choice

Answer 1

This answer explains it very thoroughly. Memcached vs. Redis?

But if you want a simple answer, here it is:

Redis

• Persistent (your data lives even if your server shuts down/reboots, since it is written to your disk, unlike memcached)
• Supports lots of data types (list, sets, etc... not just a plain get/set/del like memcached)

Memcached

• fast
• easy to use

So basically, if you don't really care about the two big advantages of Redis, you should use memcached.

Answer 2

For your own use case I'd say Redis is better. Since you're using it to store user session data you probably have the need to perform operations on a single field of the session and for that the Redis hash data type is perfect. You can find a very detailed comparison between them in this article: Redis VS Memcached: Which one to choose?