medium10 pts · first answer countscachingredis

Keeping a cached price fresh

Product data is cached in Redis with the cache-aside pattern. An admin changes a price. What should the write path usually do?

A.Update the database, then delete the product's cache key so the next read loads the new valueB.Write the new price into the cache first, then update the database, so readers never see a cache missC.Update only the cache; the database will catch up laterD.Do nothing and let the 24-hour TTL expire

Discussion 0

Join free to post in the discussion.

Keeping a cached price fresh

Discussion 0

Related questions