{"id":"raft-match-index-defaults-zero","text":"Peers missing from `_match_index` are treated as having replicated nothing via `dict.get(peer, 0)`; `_become_leader` initializes all peers to 0, so this default is safe but allows graceful handling of unexpected state.","truth_value":"IN","source":"entries/2026/05/29/raft-consensus-raft-_advance_commit_index.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"raft-match-index-defaults-zero","truth_value":"IN","reason":"premise"}]}}