Commit Graph
4 Commits
Author SHA1 Message Date
Ping QiuandClaude Opus 4.6 bbadeeb89b feat: Phase 10 CP10-2 -- CSI NVMe/TCP node plugin, 210 tests
NVMe/TCP transport support in the CSI driver so Kubernetes pods can
mount block volumes via NVMe alongside (or instead of) iSCSI.

Transport selection: NVMe preferred when nvme_tcp module loaded +
metadata present + nvmeUtil available. Fail-fast on NVMe errors (no
silent iSCSI fallback). .transport file persists across CSI restarts.

Key changes:
- BuildNQN() single source of truth for NQN construction (naming.go)
- NVMeUtil interface + realNVMeUtil wrapping nvme-cli (nvme_util.go)
- NodeStageVolume/Unstage/Expand dual-transport paths (node.go)
- NvmeAddr/NQN fields in VolumeInfo, Controller contexts
- VolumeManager NvmeAddr()/VolumeNQN() getters
- BlockService NvmeListenAddr()/NQN() accessors
- 27 unit tests + 26 QA adversarial tests (nvme_node_test.go, qa_cp102)
- Fix: flaky TestQA_Node_ConcurrentStageUnstage (pre-alloc temp dirs)

Review fixes applied: F1 (NQN format mismatch), F2 (CreateVolume drops
NVMe context), F3 (IsConnected error classification), F4 (findSubsys
path validation), F5 (MasterVolumeClient NVMe gap documented).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 23:02:59 -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
Ping QiuandClaude Opus 4.6 8b2b5f6f66 feat: Phase 6 CP6-3 -- failover + rebuild in Kubernetes, 126 tests
Wire low-level fencing primitives to master/VS control plane and CSI:

- Proto: replica/rebuild address fields on assignment/info/response messages
- Assignment queue: retain-until-confirmed (Peek+Confirm), stale epoch pruning
- VS assignment receiver: processes assignments from HeartbeatResponse
- BlockService replication: ProcessAssignments, deterministic ports (FNV hash)
- Registry replica tracking: SetReplica/ClearReplica/SwapPrimaryReplica
- CreateBlockVolume: primary + replica, enqueues assignments, single-copy mode
- Failover: lease-aware promotion, deferred timers with cancellation on reconnect
- ControllerPublish: returns fresh primary iSCSI address after failover
- Recovery: recoverBlockVolumes drains pendingRebuilds, enqueues Rebuilding
- Real integration tests on M02: failover address switch, rebuild data
  consistency, full lifecycle failover+rebuild (3 tests, all PASS)

Review fixes (12 findings, 5 High, 5 Medium, 2 Low):
- R1-1: AllocateBlockVolume returns replication ports
- R1-2: setupPrimaryReplication starts rebuild server
- R1-3: VS sends periodic block heartbeat for assignment confirmation
- R2-F1: LastLeaseGrant set before Register (no stale-lease race)
- R2-F2: Deferred promotion timers cancelled on VS reconnect
- R2-F3: SwapPrimaryReplica uses RoleToWire instead of uint32(1)
- R2-F4: DeleteBlockVolume deletes replica (best-effort)
- R2-F5: SwapPrimaryReplica computes epoch atomically under lock
- QA: SetReplica removes old replica from byServer index (BUG-QA-CP63-1)

126 CP6-3 tests (67 dev + 48 QA + 8 integration + 3 real).
Cumulative Phase 6: 352 tests. All PASS.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 00:52:05 -08:00
Ping QiuandClaude Opus 4.6 5a9a52f2d0 feat: Phase 6 CP6-2 -- CSI control-plane integration + csi-sanity/k3s validation
CP6-2 wires the CSI driver to SeaweedFS master/volume-server control plane:
- Proto: block volume messages in master.proto/volume_server.proto, codegen
- Master registry: in-memory BlockVolumeRegistry with Pending->Active status,
  full/delta heartbeat, inflight lock, placement (fewest volumes)
- VS gRPC: AllocateBlockVolume/DeleteBlockVolume handlers, shared naming
- Master RPCs: CreateBlockVolume (retry up to 3 servers), Delete, Lookup
- Heartbeat: block volume fields wired into bidirectional stream
- CSI Controller: VolumeBackend interface (Local + Master), returns volume_context
- CSI Node: reads volume_context for remote targets, staged map + IQN derivation
- Mode flag: --mode=controller/node/all, --master for control-plane
- K8s manifests: csi-driver.yaml, csi-controller.yaml, csi-node.yaml

csi-sanity conformance (33 pass, 58 skip) found 6 bugs:
- BUG-SANITY-1/2/3: missing VolumeCapabilities/VolumeCapability validation
- BUG-SANITY-4: NodePublish used mount instead of bind mount
- BUG-SANITY-5: NodeUnpublish didn't remove target path
- BUG-SANITY-6: NodeUnpublish failed on unmounted path

k3s Level 4 (PVC->Pod data persistence) found 1 bug:
- BUG-K3S-1: IsLoggedIn didn't handle iscsiadm exit code 21

226 CSI tests + 54 server tests = 280 new tests, all passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 11:01:08 -08:00