What's wrong with Memcache and Redis?
A. After Memcache expires, not deleting the cache will cause the problem of fetching data next time. Redis has a special thread to clear the cached data;
B, Memcache and redis all support single thread; Memcache and redis part of the CPU utilization
C, Memcache only supports key value storage, Redis supports more data types, such as Key value, hash, list, set, zset;
D, Memcache itself does not support persistence, Redis supports persistence;
Answer:B
What's wrong with Memcache and Redis?
A. After Memcache expires, not deleting the cache will cause the problem of fetching data next time. Redis has a special thread to clear the cached data; B, Memcache and redis all support single thread; Memcache and redis part of the CPU utilization C, Memcache only supports key value storage, Redis supports more data types, such as Key value, hash, list, set, zset; D, Memcache itself does not support persistence, Redis supports persistence;