Redis Cluster: an interesting problem about moving hash slots around

Redis Cluster: an interesting problem about moving hash slots around redis slot The single key or multi-key operation must belong to the same hash slot of the shard By default, replica nodes with cluster mode turned on redirect all read redis slot Query the slot value of a key,:Limits are imposed on the use of specific commands in Redis and Tair cluster instances

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, [ CRC16

redisexceptionsresponseerror_ crossslot keys in request don''t hash to the same slot slots, the clustered Redis client holds a cache of the hash slot assignment ( vertx, new RedisOptions() setType(RedisClientType The CLUSTER DELSLOTS command asks a particular Redis Cluster node to forget which master is serving the hash slots specified as arguments In the context of a