pingqiu 45bf111ce8 fix: derive WAL pin from actual replay need, PlanRebuild fails closed ...

WAL pin tied to actual recovery contract:
- Truncation-only (replica ahead): no WAL pin acquired
- Real catch-up: pins from replicaFlushedLSN (actual replay start)
- Logs distinguish plan_truncate_only from plan_catchup

PlanRebuild precondition checks:
- Error on missing sender
- Error on no active session
- Error on non-rebuild session kind
- All fail closed with clear error messages

4 new tests:
- ReplicaAhead_NoWALPin: truncation-only, no WAL resources
- PlanRebuild_MissingSender: returns error
- PlanRebuild_NoSession: returns error
- PlanRebuild_NonRebuildSession: returns error

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-30 12:51:38 -07:00

..

replication

fix: derive WAL pin from actual replay need, PlanRebuild fails closed

2026-03-30 12:51:38 -07:00