Download entire implementation for hazelcast

I am trying to use hazelcast server on multiple nodes. I have implemented loading in a map store implementation. I'm wondering if this is only allowed on the node server or all of them? If I expand them to all nodes, it will not create database reads that are not needed. If I need to deploy the upload to just one node, what is the best strategy (code / API call based on or config) that would allow me to clearly implement a scenario where only one node server implements uploading the entire implementation for store cards. I can always deploy different code to different servers, but I would like to avoid this and wonder about the best options.