learner (non-voting)

RU: learner (не-голосующий)

A Raft cluster member that receives replicated log entries from the leader but does not count toward the quorum for voting or commitment. A new server joins as a learner, catches up on the full log, and only then gets promoted to a full voting member, preventing a partially-synced new node from disrupting leader elections or stalling commits during the catch-up period.