Commit Graph
31 Commits
Author SHA1 Message Date
pingqiu 6cad5bb8e1 refactor: rebind bounded volume mode heartbeat truth
Make the heartbeat/master boundary preserve explicit volume_mode truth so master consume no longer reconstructs outward mode only from secondary heartbeat signals. Keep backward compatibility by falling back to the previous reconstruction when older heartbeats do not send the field.

Made-with: Cursor
2026-04-04 13:56:41 -07:00
pingqiu 6794f79df9 refactor: preserve bounded publish healthy heartbeat truth
Make the heartbeat/master boundary preserve explicit publish_healthy truth so master consume no longer reconstructs healthy publication only from secondary readiness and degraded heuristics. Keep backward compatibility by falling back to the previous reconstruction when older heartbeats do not send the field.

Made-with: Cursor
2026-04-04 13:43:19 -07:00
pingqiu eb610deb92 refactor: preserve bounded needs_rebuild heartbeat truth
Make the heartbeat/master boundary preserve explicit needs_rebuild truth so primary heartbeat consume no longer collapses that stronger mode into a generic degraded signal. Keep backward compatibility by falling back to the previous heuristic when older heartbeats do not send the field.

Made-with: Cursor
2026-04-04 13:11:42 -07:00
pingqiu 69b41a7f16 refactor: rebind bounded replica-ready heartbeat truth
Make the heartbeat/master boundary carry explicit replica readiness truth so the registry no longer depends only on replica transport-address presence as a readiness proxy. Keep backward compatibility by falling back to the old address heuristic when older heartbeats do not send the field.

Made-with: Cursor
2026-04-04 12:06:53 -07:00
pingqiu 43dbebfa04 refactor: close bounded recovery drain and invalidation seams
Move removed-replica drain and replica-scoped invalidation onto explicit core-command paths so the widened multi-replica runtime no longer depends on coarse host-side recovery handling.

Made-with: Cursor
2026-04-04 11:01:12 -07:00
pingqiu 5fd9ec0edf refactor: widen bounded multi-replica catch-up startup ownership
Emit one core-owned start_recovery_task per primary catch-up replica so the bounded multi-replica startup path no longer depends on a single-replica assumption.

Made-with: Cursor
2026-04-04 10:21:28 -07:00
pingqiuandClaude Opus 4.6 1453274988 refactor: extract host effects adapter and define Phase 17 stop line
Move dispatcher-facing host effects out of volume_server_block.go into
blockcmd while keeping server-owned cache/state semantics in weed/server.
Document Batch 10 delivery and Batch 11 stop-line review so the
separation line closes without over-extracting readiness-state mutation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 08:43:21 -07:00
pingqiuandClaude Opus 4.6 38b5042997 refactor: extract command bindings and service ops from volume server
Move BlockVol-backed command bindings into v2bridge and move non-BlockVol
command operations into weed/server/blockcmd. This keeps dispatch and host
effects in weed/server, keeps backend binding in v2bridge, and further
shrinks volume_server_block.go toward a host shell while preserving
current command-driven proofs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 08:11:39 -07:00
pingqiuandClaude Opus 4.6 11c6aaf316 feat: Batch 7 + Phase 16C-E — command dispatch extraction + engine refinements
Batch 7: Command dispatch binding extraction
- New weed/server/blockcmd package: CommandHandler interface + DispatchCommands
- volume_server_block.go applyCoreCommandsWithAssignment delegates to dispatcher
- weed/server still owns RecordCommand, EmitCoreEvent, PublishProjection
- v2bridge NOT given command-switch or event-emission semantics

Phase 16C: Rebuilding assignment enters core command path
Phase 16D: Rebuild recovery-task startup is command-driven
Phase 16E: Catch-up recovery-task startup is command-driven

Engine refinements:
- RecoveryTarget on AssignmentDelivered event
- shouldStartRecoveryTask / shouldStartReceiver guards
- bootstrapReason: awaiting_rebuild_start

Bridge/contract updates:
- control_adapter.go: refined translation helpers
- contract.go: executor port alignment

Migration design docs (Batch 1-3 delivered, design artifacts):
- v2-first/second/third-migration-batch.md + task-pack.md
- v2-assignment-translation-unification.md
- v2-execution-muscles-inventory.md
- v2-separation-port-layer-audit.md
- v2-legacy-runtime-exit-criteria.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 02:13:08 -07:00
pingqiuandClaude Opus 4.6 8c2485e0e9 feat: Phase 15 + Phase 16A/B — V2 core integration + checkpoint review
Phase 15: V2 core wired into BlockService
- volume_server_block.go: v2Core field, applyCoreAssignmentEvent,
  core command executors (ApplyRole, StartReceiver, ConfigureShipper,
  InvalidateSession, StartCatchUp, StartRebuild, PublishProjection)
- Assignment processing now goes through core engine → command emission
  → bounded execution, replacing direct V1 replication setup
- master_block_registry.go: ClusterHealthSummary, VolumeMode in entries
- master_server_handlers_block.go: blockStatusHandler, entryToVolumeInfo
  refactored with entryReplicaSurface

Phase 16A: Core projection surfaces
Phase 16B: Bounded closure (checkpoint review ready)

Test fixes: add v2Core to manually-constructed BlockService in
idempotence, convergence, soak, and CP13-8A tests (required because
V1 replication setup paths now delegate to core engine).

All tests pass (21s regression).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-03 20:58:12 -07:00
pingqiuandClaude Opus 4.6 4c7fbefe25 feat: CP13-8 PASSES — real-workload validation on RF=2 sync_all
CP13-8 scenario results on m01/M02 (25Gbps RoCE):
  fsck_ext4:       CLEAN
  file count:      200 (assert_equal PASS)
  checksum match:  MATCH (assert_contains PASS)
  pgbench TPS:     565.69 (assert_greater PASS)
  auto-failover:   10.0.0.1:18480 → 10.0.0.3:18480

Code changes (tester + scenario):
- volume_server_block.go: readiness state, assignment lifecycle cleanup
- block_heartbeat_loop.go: readiness-aware heartbeat reporting
- store_blockvol.go: readiness tracking
- master_server_handlers_block.go: block API handler updates
- cp13-8-real-workload-validation.yaml: redesigned scenario
  (removed block_promote, use natural auto-failover flow,
  bootstrap write before wait_volume_healthy)
- testrunner/actions/devops.go: scenario action improvements
- replica_read_test.go: component-level replica read test

Phase docs: CP13-7 accepted, CP13-8/8A technical packs updated,
design docs updated for protocol closure evidence.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-03 14:24:13 -07:00
pingqiuandClaude Opus 4.6 ac962fc833 fix: CP13-2 — relax contract to host:port, add BlockService-level test
Two fixes:
1. Rename advertisedIP → advertisedHost throughout, relax contract from
   "always a real IP" to "routable host from -ip flag (IP or resolvable
   hostname)". This matches the actual -ip flag semantics which accepts
   both IP addresses and server names.

2. Add TestCP13_2_BlockService_AdvertisedHost_NotOpaqueID that hits the
   actual production wiring: BlockService with opaque localServerID +
   routable advertisedHost → setupReplicaReceiver → verify exported
   addresses use the routable host, not the opaque ID.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 21:12:38 -07:00
pingqiuandClaude Opus 4.6 4bdf6c604e fix: CP13-2 — use advertisedIP (routable), not localServerID (opaque)
Bug: setupReplicaReceiver derived the advertised host from localServerID,
which can be an opaque string (from -id flag, e.g., "my-custom-server-id").
This would publish unusable endpoints like "my-custom-server-id:14260".

Fix:
- volume_server_block.go: add advertisedIP field (always a real IP from
  -ip flag), use it instead of localServerID for replica canonicalization
- volume.go: wire *v.ip → blockService.SetAdvertisedIP() at startup
- blockvol.go: StartReplicaReceiver variadic advertisedHost unchanged

Proof (sync_all_bug_test.go TestBug3, 4 sub-cases):
- fallback: wildcard bind without advertisedHost → outbound-IP
- advertisedHost: explicit IP appears in exported addresses
- StartReplicaReceiver_API: public API forwards host correctly
- opaque_identity_not_routable: proves opaque string produces
  non-routable address, confirming production must use advertisedIP

Identity vs transport separation preserved:
- localServerID: stable identity for V2 control (may be opaque)
- advertisedIP: routable IP for transport endpoints (always real IP)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 20:51:47 -07:00
pingqiuandClaude Opus 4.6 2d47383df7 feat: CP13-2 — canonical replica addressing on production truth surface
Problem: StartReplicaReceiver didn't forward advertisedHost to
NewReplicaReceiver, so wildcard-bind listeners relied on outbound-IP
fallback for canonicalization. On multi-NIC hosts this could select
the wrong interface, leaking non-routable addresses into replication
truth.

Fix:
- blockvol.go: StartReplicaReceiver now accepts optional advertisedHost
  variadic param and forwards it to NewReplicaReceiver
- volume_server_block.go: setupReplicaReceiver extracts host from
  localServerID (the canonical VS identity) and passes it as
  advertisedHost — wildcard-bind addresses now resolve to the
  authoritative server IP, not outbound-IP fallback

Proof (sync_all_bug_test.go TestBug3, upgraded from PASS* to PASS):
- fallback: wildcard bind without advertisedHost still produces ip:port
- advertisedHost: explicit host appears in exported DataAddr/CtrlAddr
- StartReplicaReceiver_API: public API forwards advertisedHost correctly

What CP13-2 does NOT change:
- No reconnect handshake changes (CP13-5)
- No retention policy changes (CP13-6)
- No rebuild behavior changes (CP13-7)
- No barrier protocol changes (CP13-3)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 17:45:42 -07:00
pingqiuandClaude Opus 4.6 3ec8fab2f1 feat: Phase 10 — control-plane closure (identity, convergence, idempotence)
Stable identity on wire:
- ServerID fields in proto (replica_server_id, server_id on ReplicaAddrMessage)
- volumeServerId wired through volume.go → BlockService.SetServerID
- Identity derived from canonical server ID, not transport addresses

Assignment convergence:
- V2 idempotence via lastAppliedAssignment.equals (full replica set comparison)
- setupPrimaryReplication/Multi idempotence guards
- ProcessAssignments with V2 + V1 dual-path assignment handling

Master-driven control loop:
- RecoveryManager: serialized cancel-and-drain via done channels
- Per-replica heartbeat state reporting (ReplicaShipperStatus)
- masterServerBackend: VolumeBackend calling real MasterServer in-process
- RestoreBlockSnapshot RPC (master + volume server proto)

QA tests (P10 P1-P4):
- Identity: ServerID on wire, fail-closed on missing
- Convergence: assignment delivery, epoch monotonicity, registry coherence
- Idempotence: repeated assignment, multi-replica set comparison
- Control loop: integrationMaster + real allocator + proto round-trip

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 16:25:43 -07:00
pingqiuandClaude Opus 4.6 04bc261f9b fix: deliver assignment intent to real engine orchestrator, not discard
Finding 1: ProcessAssignments now calls v2Orchestrator.ProcessAssignment
- BlockService.v2Orchestrator field (RecoveryOrchestrator)
- ProcessAssignment result logged at glog V(1)
- No more `_ = intent` — engine state actually changes

Finding 2: localServerID documented as interim
- BlockService.localServerID = listenAddr (transport-shaped)
- Field doc explicitly states: INTERIM, should be registry-assigned
- Used only for replica/rebuild local identity

3 integration tests (qa_block_v2bridge_test.go):
- CreatesEngineSender: ProcessAssignment → engine has sender + session
- EpochBump: epoch 1 → invalidate → epoch 2 → new session
- AddressChange: same ServerID, different IP → sender preserved,
  endpoint updated

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 13:38:30 -07:00
pingqiuandClaude Opus 4.6 46ef79ce35 fix: stable ServerID in assignments, fail-closed on missing identity, wire into ProcessAssignments
Finding 1: Identity no longer address-derived
- ReplicaAddr.ServerID field added (stable server identity from registry)
- BlockVolumeAssignment.ReplicaServerID field added (scalar RF=2 path)
- ControlBridge uses ServerID, NOT address, for ReplicaID
- Missing ServerID → replica skipped (fail closed), logged

Finding 2: Wired into real ProcessAssignments
- BlockService.v2Bridge field initialized in StartBlockService
- ProcessAssignments converts each assignment via v2Bridge.ConvertAssignment
  BEFORE existing V1 processing (parallel, not replacing yet)
- Logged at glog V(1)

Finding 3: Fail-closed on missing identity
- Empty ServerID in ReplicaAddrs → replica skipped with log
- Empty ReplicaServerID in scalar path → no replica created
- Test: MissingServerID_FailsClosed verifies both paths

7 tests: StableServerID, AddressChange_IdentityPreserved,
MultiReplica_StableServerIDs, MissingServerID_FailsClosed,
EpochFencing_IntegratedPath, RebuildAssignment, ReplicaAssignment

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 10:46:17 -07:00
pingqiuandClaude Opus 4.6 abbc8bff2b fix: canonicalize host in AllocateBlockVolumeResponse (CP13-2 follow-up)
AllocateBlockVolumeResponse used bs.ListenAddr() to derive replica
addresses. When the VS binds to ":port" (no explicit IP), host
resolved to empty string, producing ":dataPort" as the replica
address. This ":port" propagated through master assignments to both
primary and replica sides.

Now canonicalizes empty/wildcard host using PreferredOutboundIP()
before constructing replication addresses. Also exported
PreferredOutboundIP for use by the server package.

This is the source fix — all downstream paths (heartbeat, API
response, assignment) inherit the canonical address.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 19:16:45 -07:00
pingqiuandClaude Opus 4.6 ae87a31d22 fix: store canonical replica addresses in heartbeat state
setupReplicaReceiver now reads back canonical addresses from
the ReplicaReceiver (which applies CP13-2 canonicalization)
instead of storing raw assignment addresses in replStates.

This fixes the API-level leak where replica_data_addr showed
":port" instead of "ip:port" in /block/volumes responses,
even though the engine-level CP13-2 fix was working.

New BlockVol.ReplicaReceiverAddr() returns canonical addresses
from the running receiver. Falls back to assignment addresses
if receiver didn't report.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 19:08:48 -07:00
Ping QiuandClaude Opus 4.6 1b3edd7856 feat: CP11A-2 coordinated expand protocol for replicated block volumes
Two-phase prepare/commit/cancel protocol ensures all replicas expand
atomically. Standalone volumes use direct-commit (unchanged behavior).

Engine: PrepareExpand/CommitExpand/CancelExpand with on-disk
PreparedSize+ExpandEpoch in superblock, crash recovery clears stale
prepare state on open, v.mu serializes concurrent expand operations.

Proto: 3 new RPCs (PrepareExpand/CommitExpand/CancelExpandBlockVolume).

Coordinator: expandClean flag pattern — ReleaseExpandInflight only on
clean success or full cancel. Partial replica commit failure calls
MarkExpandFailed (keeps ExpandInProgress=true, suppresses heartbeat
size updates). ClearExpandFailed for manual reconciliation.

Registry: AcquireExpandInflight records PendingExpandSize+ExpandEpoch.
ExpandFailed state blocks new expands until cleared.

Tests: 15 engine + 4 VS + 10 coordinator + heartbeat suppression
regression + updated QA CP82/durability tests with prepare/commit mocks.

Also includes CP11A-1 remaining: QA storage profile tests, QA
io_backend config tests, testrunner perf-baseline scenarios and
coordinated-expand actions.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 15:06:48 -07:00
Ping QiuandClaude Opus 4.6 9ef446d0cf feat: master-backed NVMe/TCP publication (nvme_addr + nqn plumbing)
Add nvme_addr and nqn fields to proto messages (AllocateBlockVolume,
CreateBlockVolume, LookupBlockVolume, BlockVolumeInfoMessage), wire
through volume server → master registry → CSI driver. Volume servers
report NVMe address in heartbeats when NVMe target is running. CSI
MasterVolumeClient now populates NvmeAddr/NQN from master responses,
enabling NVMe/TCP via the master-backend path.

Proto files regenerated with protoc 29.5.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 17:35:43 -07:00
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 0e234f5c80 feat: Phase 10 CP10-1 -- NVMe/TCP target MVP, 109 tests
NVMe over Fabrics (TCP) target implementation sharing the same BlockVol
engine, fencing, replication, and failover as the existing iSCSI target.

New package: weed/storage/blockvol/nvme/ (11 files, 2,242 production LOC)
- protocol.go: PDU types, opcodes, status codes, marshal/unmarshal
- wire.go: TCP reader/writer with header bounds validation
- controller.go: IC handshake, per-queue state, command dispatch, KATO
- fabric.go: Connect (admin+IO), PropertyGet/Set, Disconnect
- identify.go: Controller/Namespace/NS list/NS descriptors (Linux 5.15)
- admin.go: SetFeatures, GetFeatures, GetLogPage (SMART/ANA), KeepAlive
- io.go: Read (C2HData), Write (inline), Flush, WriteZeros/Trim
- server.go: TCP listener, admin session registry, graceful shutdown
- adapter.go: BlockVol-to-NVMe bridge, error mapping, ANA state

Integration: NVMeConfig + CLI flags (-block.nvme.*), disabled by default.

Key design: inline-data writes only (no R2T), MaxH2CDataLength=32KB,
single ANA group coherent with BlockVol role, CNTLID session registry
for cross-connection IO queues, HostNQN continuity enforcement.

Tests: 65 dev + 44 QA adversarial = 109 total, all passing.
Bugs fixed during review: IO queue cross-connection (A), header bounds
validation (B), write payload size check (C), disconnect error (D),
stream desync prevention (E), HostNQN enforcement (F), capsule-before-IC
state guard (H), flowCtlOff SQHD timing (I).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 16:52:37 -07:00
Ping QiuandClaude Opus 4.6 9acd187587 feat: Phase 8 complete -- CP8-5 stability gate, lease grant fix, Docker e2e, 13 chaos scenarios
Phase 8 closes with all 6 checkpoints done (CP8-1 through CP8-5 + CP8-3-1):
- CP8-5: 12/12 enterprise QA scenarios PASS on real hardware (m01/M02)
- Master-authoritative lease grants (BUG-CP85-11): master renews primary
  write leases on every heartbeat response, replacing retain-until-confirmed
  assignment queue semantics that caused 30s lease expiry
- Post-rebuild WAL shipping gap fix (BUG-CP85-1): syncLSNAfterRebuild
  advances replica nextLSN so WAL entries are accepted after rebuild
- Block heartbeat startup race fix (BUG-CP85-10): dynamic blockService
  check on each tick instead of one-shot at loop start
- 8 new tests: 4 engine lease grant + 4 registry lease grant
- 13 new YAML scenarios: chaos (kill-loop, partition, disk-full),
  database integrity (sqlite crash, ext4 fsck), perf baseline,
  metrics verify, snapshot stress, expand-failover, session storm,
  role flap, 24h soak
- 12 new testrunner actions (database, fsck, grep_log, write_loop_bg,
  stop_bg, assert_metric_gt/eq/lt) + phase repeat support
- Docker compose setup + getting-started guide for block storage users
- 960+ cumulative unit tests, 24 YAML scenarios

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 21:30:14 -08:00
Ping QiuandClaude Opus 4.6 da1b81d1c9 feat: CP8-3-1 durability modes + testrunner platform + 21 adversarial tests
Durability mode implementation (sync_all, sync_quorum, best_effort):
- DurabilityMode type with superblock persistence, parse/validate/string
- MakeDistributedSync mode-aware barrier enforcement in dist_group_commit
- blockerr sentinel package (ErrDurabilityBarrierFailed, ErrDurabilityQuorumLost)
- gRPC create path: mode validation, idempotent create consistency, partial cleanup
- F1: strict mode rejects partial replica provisioning with cleanup
- F3: empty heartbeat does not overwrite persisted strict mode
- F4: SCSI error mapping uses errors.Is sentinels (not string matching)
- Proto/wire/blockapi/CLI/UI plumbing for durability_mode field
- Observability dashboard: cluster health cards + per-volume columns

Testrunner platform (YAML-driven integration test framework):
- Engine, parser, registry, reporter (JUnit XML + HTML), metrics scraping
- 52 registered actions: block, iSCSI, I/O, fault injection, assertions
- Baseline regression framework with 7 hard-fail conditions
- 15 YAML scenarios (smoke, crash, HA, fault, consistency, snapshot)
- 49 unit tests for testrunner internals

QA adversarial suite (21 tests, all PASS):
- Idempotent create mode/RF mismatch detection
- Heartbeat mode downgrade prevention (F3)
- sync_all/sync_quorum partial replica enforcement (F1)
- Concurrent create race safety
- Failover/expand mode preservation
- Cleanup resilience when delete fails
- Master restart auto-register mode handling
- Superblock roundtrip all 3 modes
- Validate edge cases (mode×RF matrix)
- RequiredReplicas quorum math verification
- Sentinel error categorization

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-06 01:06:51 -08:00
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
Ping QiuandClaude Opus 4.6 a089bf6828 feat: Phase 4A CP4b-2 -- heartbeat collector, 3 bug fixes, 9 QA tests
BlockVolumeHeartbeatCollector periodically collects block volume status
via callback (standalone, no gRPC wiring yet). Store() accessor on
BlockService. Three bugs found by QA and fixed: Stop-before-Run deadlock
(BUG-CP4B2-1), zero interval panic (BUG-CP4B2-2), callback panic crashes
goroutine (BUG-CP4B2-3). 12 new tests (3 dev + 9 QA adversarial).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 10:20:27 -08:00
Ping QiuandClaude Opus 4.6 ffdde15bcd feat: Phase 4A CP4b-1 -- wire types, conversion helpers, heartbeat collection
Add BlockVolumeInfoMessage, BlockVolumeShortInfoMessage, BlockVolumeAssignment
wire-type structs (proto-shaped Go structs). Add conversion helpers with
DiskType plumbing, overflow-safe LeaseTTLToWire, validated RoleFromWire.
Add CollectBlockVolumeHeartbeat on BlockVolumeStore. 9 new tests.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 09:34:00 -08:00
Ping QiuandClaude Opus 4.6 80801b0fac feat: Phase 3 — performance tuning, iSCSI session refactor, store integration
Phase 3 delivers five checkpoints:

CP1 Engine Tuning: BlockVolConfig tunables, 256-shard DirtyMap, adaptive
group commit (low-watermark immediate flush), WAL pressure handling with
backpressure and ErrWALFull timeout.

CP2 iSCSI Session Refactor: RX/TX goroutine split with respCh (cap 64),
txLoop for serialized response writes, StatSN assignment modes. Login
phase stays single-goroutine; full-duplex after login.

CP3 Store Integration: BlockVolAdapter (iscsi.BlockDevice interface),
BlockVolumeStore management, BlockService in volume_server_block.go,
CLI flags (--block.listen/dir/iqn.prefix), sw-block-attach.sh helper.

CP5 Concurrency Hardening: WAL reuse guard (LSN validation in ReadLBA),
opsOutstanding counter with beginOp/endOp + Close drain, appendWithRetry
shared by WriteLBA and TrimLBA, flusher LSN guard in FlushOnce.

Bug fixes (P3-BUG-2–11): unbounded pending queue cap, Data-Out timeout,
flusher error logging, GroupCommitter panic recovery, Close vs concurrent
ops guard, target shutdown race, WAL-full retry vs Close, WRITE SAME(16)
for XFS, MODE SENSE(10) + VPD 0xB0/0xB2 for Linux kernel compatibility.

797 tests passing (517 engine + 280 iSCSI), go vet clean.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 10:43:34 -08:00