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Cache Key Routing
A Redis client library implements consistent hashing across a 4-node Redis cluster. The ring positions (after hashing server names) are:
redis-1at 1000redis-2at 3000redis-3at 6000redis-4at 9000 (ring wraps at 10000)
Where is the key user:session:42 stored if hash("user:session:42") = 4500?
Where is hash("product:cache:7") = 9800 stored?