alt Hacker NewsCaching is not supposed to work like that, but that doesn’t preclude the cache key computation function from having bugs.
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nok22kon • today at 4:13 PM
or the cache retrieval function for a key retrieving the wrong entry
Caching is not supposed to work like that, but that doesn’t preclude the cache key computation function from having bugs.
or the cache retrieval function for a key retrieving the wrong entry
Yeah there's quite a lot of potential bugs that could have this shape. If I were to guess it could be a buffer in a buffer pool not being sized and zeroed correctly, allowing stale data to bleed between sessions.