Clustering in Redis - by Vardan Nadkarni

Clustering in Redis - by Vardan Nadkarni redis hash 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 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 crossslot keys in request don''t hash to the same slot A Redis® Cluster is divided into 16384 hash slots, and a deterministic formula is used to derive the key to hash slot mapping, that is [ CRC16(

redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot The CLUSTER SETSLOT command is an important piece used by Redis Cluster in order to migrate all the keys contained in one hash slot from one node to another  When a key is inserted in Redis, the hash slot is found using the CRC-16 hash function to convert the key into an integer Then modulo 16383 of that integer is