Nicholas Dudfield 407bfa1467 feat(consensus): cherry-pick dd085e5d8 (upstream d22a5057b9) anti-stall mechanisms ...

Cherry-pick of ripple/rippled@d22a5057b9 / xahau dd085e5d8 ("Prevent
consensus from getting stuck in the establish phase (#5277)"), resolved
against our RNG pipeline and bootstrap fast-start changes.

Upstream adds three layered anti-stall mechanisms:
- Stateful per-dispute avalanche state machine (init→mid→late→stuck)
- Stall detection: declares consensus when all disputes individually settled
- Hard expiration: clamp(10× prev round, 15s, 120s) wall-clock safety net

Conflict resolution:
- ConsensusParms.h: kept both avalanche state machine (const members,
  avMIN_ROUNDS, avSTALLED_ROUNDS, getNeededWeight) and our bootstrap
  params (bootstrapRoundTimeSeed, bootstrapStableRoundsRequired).
  ledgerMAX_CONSENSUS left non-const for bootstrap override.
- Consensus.h: pass both stalled flag and effectiveParms to checkConsensus.
  Stall check uses original parms, bootstrap override only affects max
  consensus timeout.
- Consensus_test.cpp: kept all 12 RNG tests and new testDisputes test.

2026-03-11 09:36:38 +07:00

..

levelization

feat(consensus): cherry-pick dd085e5d8 (upstream d22a5057b9) anti-stall mechanisms

2026-03-11 09:36:38 +07:00