Hash Tagging Redis Keys in a Clustered Environment

Hash Tagging Redis Keys in a Clustered Environment redis hash slot A hash tag is defined with brackets a key that has a substring inside brackets will use that substring to determine in which hash slot the redis crossslot keys in request don''t hash to the same slot 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

redis crossslot keys in request don''t hash to the same slot hash slots with actual nodes network coordinates , so that when a command is received, it can be sent to what is

redis hash slot Each time there is a failover, a new, unique, monotonically increasing configuration epoch is created If multiple nodes claim to serve the same hash slots, the Cross-slot commands: In Redis Cluster, you can't perform operations that involve multiple keys unless they are all part of the same hash slot · Transactions: