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seaweedfs/weed
pingqiuandClaude Opus 4.6 0ca57dc2eb feat: CP13-6 — replica-aware WAL retention with max-bytes budget
Add max-bytes retention budget alongside existing timeout budget:
- shipper_group.go: EvaluateRetentionBudgets now checks both timeout
  (last contact time) and max-bytes (entry lag * 4KB > maxBytes).
  Either exceeding budget → NeedsRebuild state transition.
- blockvol.go: add walRetentionMaxBytes (64MB default), pass to
  EvaluateRetentionBudgets with primaryHeadLSN.

TestWalRetention_MaxBytesTriggersNeedsRebuild upgraded from PASS*
(log-only placeholder) to real PASS: asserts State()==NeedsRebuild
after lag exceeds configured max-bytes budget.

Retention contract: hold-back blocks reclaim for recoverable replicas,
timeout and max-bytes budgets escalate to NeedsRebuild and release hold.
Full rebuild lifecycle remains CP13-7 scope.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 23:10:06 -07:00
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