Redis cluster data sharding strategy

Redis cluster data sharding strategy redis hash slot This error occurs when keys aren't in the same hash slot even though the keys are stored in the same node To implement multi-key operations in a sharded redis crossslot keys in request don''t hash to the same slot Redis Cluster implements a concept called hash tags that can be used in order to force certain keys to be stored in the same hash slot, see Keys hash tag

redis crossslot keys in request don''t hash to the same slot hash slot Redis assigns keys to nodes by calculating the hash slot like this: Copy CRC16 mod 16384 CRC16 is a hashing function (

redis slot The set of hash slots spread across nodes in a cluster Clients use the CLUSTER family of commands to query a cluster's state A common A high performance redis cluster key slot calculator for node redis clients node_redis, ioredis and redis-clustr hash · crc · slot