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A comment on How not to structure database-backed web apps: performance bugs in the wild. Parent comment

Re:How not to structure database-backed web apps: performanc... by testplzignore on Thursday June 28, 2018 @01:06PM (#17418664)
Just be careful to lock the cache key, and not the cache. I've seen the latter done often, which of course kills performance if there are cache misses for multiple keys at the same time.
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