Redis cluster data sharding strategy

Redis Cluster doesn't use consistent hashing to do the distribution job Instead, it uses the hash slots Each cluster has 16384 hash slots that

There are 16384 hash slots in Redis Cluster, and to compute the hash slot The user can force multiple keys to be part of the same hash slot by using a feature

redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot The Redis cluster has 16384 hash slots Each key is checked modulo 16384 after CRC16 verification to determine which slot to place Each node in the cluster is

redis hash slot As a side effect of the command execution, the node may go into down state because not all hash slots are covered Usage in Redis Cluster This command only