Returns the hash slot for a key.
CLUSTER
KEYSLOT
key
Returns an integer identifying the hash slot the specified key hashes to. This command is mainly useful for debugging and testing, since it exposes via an API the underlying Valkey implementation of the hashing algorithm. Example use cases for this command:
CLUSTER KEYSLOT
command,
then checking if the result is the same.Integer reply: The hash slot number for the specified key
O(N) where N is the number of bytes in the key
@slow
> CLUSTER KEYSLOT somekey
(integer) 11058
> CLUSTER KEYSLOT foo{hash_tag}
(integer) 2515
> CLUSTER KEYSLOT bar{hash_tag}
(integer) 2515
Note that the command implements the full hashing algorithm,
including support for hash tags, that is the special
property of Valkey Cluster key hashing algorithm, of hashing just what
is between {
and }
if such a pattern is found
inside the key name, in order to force multiple keys to be handled by
the same node.
ASKING, CLUSTER, CLUSTER ADDSLOTS, CLUSTER ADDSLOTSRANGE, CLUSTER BUMPEPOCH, CLUSTER COUNT-FAILURE-REPORTS, CLUSTER COUNTKEYSINSLOT, CLUSTER DELSLOTS, CLUSTER DELSLOTSRANGE, CLUSTER FAILOVER, CLUSTER FLUSHSLOTS, CLUSTER FORGET, CLUSTER GETKEYSINSLOT, CLUSTER HELP, CLUSTER INFO, CLUSTER LINKS, CLUSTER MEET, CLUSTER MYID, CLUSTER MYSHARDID, CLUSTER NODES, CLUSTER REPLICAS, CLUSTER REPLICATE, CLUSTER RESET, CLUSTER SAVECONFIG, CLUSTER SET-CONFIG-EPOCH, CLUSTER SETSLOT, CLUSTER SHARDS, CLUSTER SLOT-STATS, CLUSTER SLOTS, READONLY, READWRITE.