CLUSTER GETKEYSINSLOT slot count
The command returns an array of keys names stored in the contacted node and hashing to the specified hash slot. The maximum number of keys to return is specified via the
count argument, so that it is possible for the user of this API to batch-processing keys.
The main usage of this command is during rehashing of cluster slots from one node to another. The way the rehashing is performed is exposed in the Redis Cluster specification, or in a more simple to digest form, as an appendix of the CLUSTER SETSLOT command documentation.
> CLUSTER GETKEYSINSLOT 7000 3 "47344|273766|70329104160040|key_39015" "47344|273766|70329104160040|key_89793" "47344|273766|70329104160040|key_92937"
Array reply: From 0 to count key names in a Redis array reply.
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