How does slot assignment work in a Redis cluster? Please explain

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Each cluster has 16384 hash slots that can be distributed across all the nodes, and during all operations, the Redis client uses the key to

redis slot 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

redis crossslot keys in request don''t hash to the same 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