Understanding the Raft Consensus Algorithm and Distributed State Machine Replication
A comprehensive guide to Raft, covering its core mechanics and how it enables reliable state machine replication across unreliable nodes.
A comprehensive guide to Raft, covering its core mechanics and how it enables reliable state machine replication across unreliable nodes.
Explore how Raft provides deterministic consensus for replicated state machines, from theory to practical implementation and production‑grade deployment.
Introduction Distributed ledgers—whether public blockchains, permissioned networks, or hybrid hybrids—rely on state machine replication (SMR) to provide a consistent view of the ledger across a set of potentially unreliable nodes. At the heart of SMR lies a consensus protocol that decides the order of transactions, guarantees safety (no two honest nodes diverge) and liveness (the system eventually makes progress), and does so under real‑world constraints such as network latency, message loss, and Byzantine behavior. ...