title_body: Is it possible to reuse the blockchain for both relay and block producing nodes? While setting up Cardano Stake Pool, we need to have at least 2 nodes: one for Relay, another for Block Producing (BP).
  This Relay node downloads the whole blockchain, and the BP Node will connect only to Relay node and it will sync the blockchain from the Relay node.
  My question is, since both of these nodes are in same network, I feel like it's duplicate information downloaded twice. Is there any way by which we can share the same blockchain database for both of these nodes?
upvoted_answer: This is not possible, as both nodes are two different blockchain nodes and might have different views of the network in forks as in transactions in the mempool.