Redis Redis Cluster Sharding - Courses -

Redis Redis Cluster Sharding - Courses - redis hash slot In Redis Cluster, those buckets are called hash slots, and there are 16384 of them Or, if you prefer round hexadecimal numbers, 0x4000 The same logic applies: redis 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(

redis slot Hash tags are a way to ensure that multiple keys are allocated in the same hash slot This is used in order to implement multi-key operations in Redis Cluster

redis 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  Effectively, the “key-set” of our HASH is our “set” data structure Our strategy results in a view of the HASH like this: redisHashKey: { valueToStore1: 1,