Zero-downtime scaling in Memorystore for Redis Cluster

Redis Cluster: an interesting problem about moving hash slots around redis slot Redis cluster terminology Called a hash slot, it is the key's CRC16 hash value and then a computation of a modulo using 16384 The specific algorithm used redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot Hash slots are defined by Redis so the data can be mapped to different nodes in the Redis cluster The number of slots can be

redis hash slot Key Distribution · Redis assigns slot ranges for each master node within the cluster · These slots are between 0 and 16384 , which means each