Hibernate中的分布式查询缓存

Question

Can we maintain consistency in query caches across multiple nodes? Or else I should just drop the idea of using query cache in a distributed architecture?

Answer 1

If you are referring to MySQL's Query cache, then NO. It is unavailable in Galera cluster and Group replication -- for good reason. The maintenance of it far outweighs the benefit.

If you are referring to some other caching, I would probably advise against it, for much the same reasons.

If you would like to explain what you are doing, we can discuss further.

The better alternatives:

• Speed up queries via better indexing, schema design, query formulation, etc.
• Rethink other things that lead to slowdowns.

That is, focus on making the system fast enough not to need a distributed cache.