Scott Scoble
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03de892259
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docs: comprehensive KRaft protocol reference for speckl#22
M1.1 research deliverable — detailed reference document covering:
- Complete Raft state machine (TLA+ spec): 10 actions with preconditions
- KRaft state hierarchy: 7 states (Unattached, Prospective, Candidate,
Follower, Leader, Resigned, Detached) with per-state variables
- Detailed transition table with triggers and preconditions
- Pre-Vote protocol (KIP-996) mechanics and verification targets
- Resignation protocol (graceful leader step-down)
- 6 vanilla Raft invariants (I1-I6) formalized for Z3
- 6 KRaft-specific invariants (K1-K6) including observer consistency
- Snapshot invariants (KIP-630)
- 4 known Raft/KRaft bugs with verification targets
- 7 open verification targets for SpeckDL/Z3
- Producer acks and consumer group semantics (deferred to M1.3)
- Message types and KIP reference table
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2026-05-09 21:54:09 -07:00 |
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