pingqiuandClaude Opus 4.6 f73a3fdab2 feat: add storage/control adapters and recovery driver (Phase 06 P0/P1) ...

Phase 06 module boundaries:

adapter.go — StorageAdapter + ControlPlaneAdapter interfaces:
- GetRetainedHistory: real WAL retention state
- PinSnapshot / ReleaseSnapshot: rebuild resource management
- PinWALRetention / ReleaseWALRetention: catch-up resource management
- HandleHeartbeat / HandleFailover: control-plane event conversion

driver.go — RecoveryDriver replaces synchronous convenience:
- PlanRecovery: connect + handshake from storage state + acquire resources
- PlanRebuild: acquire snapshot + WAL pins for rebuild
- ReleasePlan: release all acquired resources

Convenience flow classification:
- ProcessAssignment, UpdateSenderEpoch, InvalidateEpoch → stepwise engine tasks
- ExecuteRecovery → planner (connect + classify)
- CompleteCatchUp, CompleteRebuild → TEST-ONLY convenience

7 new tests (driver_test.go):
- CatchUp plan + execute with WAL pin
- ZeroGap plan (no resources pinned)
- NeedsRebuild → rebuild plan with resource acquisition
- WAL pin failure → logged + error
- Snapshot pin failure → logged + error
- ReplicaAhead truncation through driver
- Cross-layer: storage proves recoverability, engine consumes proof

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

2026-03-30 11:35:25 -07:00

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replication

feat: add storage/control adapters and recovery driver (Phase 06 P0/P1)

2026-03-30 11:35:25 -07:00