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v1.34.26: consensus v1.35.29 -> v1.35.33 (finality committee sizing) + quorum ValidatorCount

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Restores mainnet C-Chain finality. The prior stall: with 5 live validators but
MainnetParams K=21/alpha=15, BOTH finality gates (assembleCertLocked cert-alpha
AND view-change POL) required 15 distinct votes — impossible from 5 validators,
so the chain froze (safe, no fork). consensus v1.35.33 sizes both gates from the
live validator count via effectiveCommittee (alpha=4 for n=5), inheriting the
minBFTCommittee K=4/alpha=3 floor (1085013 self-finality guard preserved);
Snowman K=21 sample untouched. node chains/quorum.go adds
validatorStakeSource.ValidatorCount (height-indexed, deterministic). EVM stays
v1.104.7 (head-state pin). Test: 5-validator MainnetParams control freezes,
fix converges in 0.35s.

Co-authored-by: Hanzo Dev <dev@hanzo.ai>
This commit is contained in:
zeekay
2026-07-09 08:59:42 -07:00
co-authored by Hanzo Dev
parent 439f2768e0
commit 7720d00baa
3 changed files with 13 additions and 389 deletions
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chains/quorum.go
+10
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@@ -267,6 +267,16 @@ func (s *validatorStakeSource) TotalStake(height uint64) uint64 {
return total
}
// ValidatorCount implements consensuschain.StakeSource. The number of DISTINCT
// validators in the set IN FORCE AT height — the round-scoped view-change's BFT
// committee size (it sizes its POL/precommit quorum to bftAlpha over this count,
// NOT the oversized Snowman sample K). Read from the SAME height-indexed set as
// Weight/TotalStake so every node computes the identical committee and the
// count-quorum matches the ⅔-by-stake set exactly.
func (s *validatorStakeSource) ValidatorCount(height uint64) int {
return len(validatorSetAtHeight(s.state, s.networkID, height))
}
var _ consensuschain.StakeSource = (*validatorStakeSource)(nil)
// --- validator-set-root source (MEDIUM: epoch binding) -----------------------