Redis Cluster 101

hash slot There are 16384 hash slots in Redis Cluster, and to compute the hash slot for a given key, we simply take the CRC16 of the key

Hi all! Today I found an interesting race condition in Redis Cluster If you are familiar with the design you know that the key space is

redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot Redis Cluster does not use consistent hashing but a different form of data split with every key being a part of what is called a hash slot

redis hash slot Hash tags are a substring in curly braces that Redis will use for calculating the hash slot and consequently determine the cluster node It