cache breakdown

Others 2022-04-28 14:20:14 views: 0

Take redis as an example:

Cache invalidation (normal data): Distributed locks can be used. When the cache is invalid, the request will be made, and the same set key will be setnx(), and if it is successful, the db will be queried and the cache will be set. If it fails, wait for the message to return.

Data that does not exist: You can add an expiration time by setting a default value of null.

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