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seaweedfs/weed
pingqiuandClaude Opus 4.6 ec51cfa474 fix: rewrite P2 as one-chain proofs with pin release assertions
Rebuild ONE CHAIN (proven):
  assignment → PlanRebuild → RebuildExecutor.Execute()
  → v2bridge TransferFullBase → engine complete → InSync
  → pinner.ActiveHoldCount() == 0 (pins released)

Catch-up ONE CHAIN (V1 limitation documented):
  V1 interim: CommittedLSN = CheckpointLSN = TailLSN after flush.
  No gap between tail and committed exists. Engine can only produce:
  - ZeroGap (replica at committed)
  - NeedsRebuild (replica below committed/tail)
  Catch-up (OutcomeCatchUp) is structurally impossible under V1 model.
  Real WAL scan proven separately (P1). Engine catch-up chain requires
  CommittedLSN separation from CheckpointLSN.

Cleanup: CancelPlan → pins released + session invalidated + logged.
Observability: sender_added + session_created + connected + escalated.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 14:58:00 -07:00
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