this post was submitted on 19 Jul 2023
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networking
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I am by no means an expert but the TLDR is Raft is a protocol that allows distributed systems to maintain a central state. The GitHub page on it is pretty good - https://raft.github.io/.
What it means for this project is that every single node keeps the database containing the entire network state (rules, addresses, routes, etc.) in-memory. At any single point in time, any of the "voting" nodes can become the "leader". The leader is responsible for authorizing nodes to join, mutating state, etc. If that leader goes away - another node will pick up the slack.