Etsy Engineering | mctop - a tool for analyzing memcache get traffic
Here at Etsy we (ab)use our memcache infrastructure pretty heavily as a caching layer between our applications and our database tiers. We functionally partition our memcache instances into small pools and overall it works fabulously well. We have however suffered occasionally from what we call "hot keys". What is a "Hot" key? A "hot key" is a single key hashed to an individual memcache instance wi
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