Check caches in blobExist in the correct order. #311
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Hamishpk
approved these changes
May 16, 2024
peterebden
approved these changes
May 16, 2024
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I've just realised blobExists currently checks the existence of the blob in redis before checking it in the in-memory cache. Our redis currently gets hundreds of millions of EXISTS commands everyday, causing high CPU usage and spikes in latency. This will hopefully help with it and should help with the latency of Elan in general.