Consistent Hashing in Go: Why hash(key) % N Breaks and How a Ring Fixes It
Add one server to a cache cluster that uses hash(key) % N and about 91% of your keys change owner overnight. Consistent hashing cuts that to roughly K/N. We build the ring in Go, add virtual nodes, and measure real remapping and load balance, including the hash function mistake that quietly wrecks it.
#Consistent-Hashing #Go #Distributed-Systems #Algorithms
November 9, 2026