2 Commits

Include renames

Author	SHA1	Message	Date
Ping QiuandClaude Opus 4.6	8d6379f841	feat: replica state machine + barrier eligibility gating (CP13-4) ... Replaces binary degraded flag with ReplicaState type: Disconnected, Connecting, CatchingUp, InSync, Degraded, NeedsRebuild. Ship() allowed from Disconnected (bootstrap: data must flow before first barrier) and InSync (steady state). Ship does NOT change state. Barrier() gating: - InSync: proceed normally - Disconnected: bootstrap path (connect + barrier) - Degraded: reconnect both data+ctrl connections, then barrier - Connecting/CatchingUp/NeedsRebuild: rejected immediately Only barrier success grants InSync. Reconnect alone does not. IsDegraded() now means "not sync-eligible" (any non-InSync state). InSyncCount() added to ShipperGroup. dist_group_commit.go: removed AllDegraded short-circuit that prevented bootstrap. Barrier attempts always run — individual shippers handle their own state-based gating. 8 CP13-4 tests + TestBarrier_RejectsReplicaNotInSync flips FAIL→PASS. All previously-passing baseline tests remain green. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-25 02:39:32 -07:00
Ping QiuandClaude Opus 4.6	979a9b496c	feat: Phase 8 CP8-1/2/3/4 -- ops control plane, multi-replica, CSI snapshots, observability ... CP8-1: HTTP REST API (create/delete/lookup/list/assign/servers), blockapi Go client with multi-master failover, 5 shell commands, HTML dashboard at /block/. CP8-2: RF=2/RF=3 multi-replica support -- ShipperGroup fan-out, distributed sync, health scoring, segment-based scrub, gated promotion (heartbeat freshness + WAL LSN + role checks), failover/rebuild for N>2 replicas. CP8-3: CSI snapshot + expansion -- CreateSnapshot/DeleteSnapshot/ListSnapshots RPCs, NodeExpandVolume with iSCSI rescan, snapshot ID helpers, 20 adversarial tests covering concurrent ops, edge cases, and error injection. CP8-4: Observability -- EngineMetrics atomic counters for flusher/group-commit/ WAL-shipper/scrub, 10 new Prometheus metrics, barrier_lag_lsn SLO gauge, failover/promotion/rebuild counters, request ID correlation in master gRPC logs, baseline regression framework with 7 hard-fail conditions. Total: 63 files, ~11.2K LOC, 160+ new tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-06 00:05:17 -08:00