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pingqiuandClaude Opus 4.6
df69c83f41
Replace the broken primary-local rebuild executor with RemoteRebuildIO, a server-side engine.RebuildIO implementation that coordinates remotely. The primary sends SessionControlV2 (with RebuildAddr trailer) to the replica's control channel; the replica starts a local rebuild session and auto-connects to the primary's rebuild server for the base lane. Single rebuild route: ALL core-present rebuilds use RemoteRebuildIO. The entire command chain is preserved unchanged: PlanRebuild → pending → RebuildStarted → StartRebuildCommand → ExecutePendingRebuild → RemoteRebuildIO.TransferFullBase Key changes: - SessionControlMsg v2: optional RebuildAddr trailer (len-based decode) - ReplicaRebuilding shipper state: session-gated live WAL lane - RemoteRebuildIO: dials replica ctrl, sends session control, reads acks - Ack forwarding through ObserveReplicaRebuildSessionAck (pins/watchdog) - Completion proof from replica's achievedLSN, not primary's local vol - Transport failures emit SessionFailed (no double-emit on ack failures) - Progress ack rejection fails closed (stale session = abort) - Replica auto-starts base lane client on v2 session control State transitions: NeedsRebuild → [accepted ack] → Rebuilding → [completed] → InSync Rebuilding → [failed/EOF] → NeedsRebuild → [next probe] → retry Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>