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cluster keyslot

CLUSTER

CLUSTER KEYSLOT key

Available since 3.0.0.

Time complexity: O(N) where N is the number of bytes in the 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 Redis implementation of the hashing algorithm. Example use cases for this command:

  1. Client libraries may use Redis in order to test their own hashing algorithm, generating random keys and hashing them with both their local implementation and using Redis CLUSTER KEYSLOT command, then checking if the result is the same.
  2. Humans may use this command in order to check what is the hash slot, and then the associated Redis Cluster node, responsible for a given key.

Example

> CLUSTER KEYSLOT someke