Ping Qiu and Claude 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 Qiu and Claude Opus 4.6
09c7e40d29
feat: Phase 4A CP4a -- simulated master, assignment sequence tests, BlockVolumeStatus
...
Add SimulatedMaster test helper + 20 assignment sequence tests (8 sequence,
5 failover, 5 adversarial, 2 status). Add BlockVolumeStatus struct and
Status() method. Includes QA test files for CP1-CP4a. 940 total unit tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-02 09:33:45 -08:00
Ping Qiu and Claude Opus 4.6
a107685f00
feat: Phase 4A CP1 — epoch, lease, role state machine, write gate
...
Local fencing primitives for block volumes. Every write path validates
role + epoch + lease before accepting data. RoleNone (default) skips
all checks for Phase 3 backward compatibility.
New files: epoch.go, lease.go, role.go, write_gate.go
Modified: superblock.go (Epoch field), blockvol.go (fencing fields,
writeGate in WriteLBA/Trim), group_commit.go (PostSyncCheck/Gotcha A),
dirty_map.go (P3-BUG-9 power-of-2 panic)
Bug fixes: BUG-4A-1 (atomic epoch), BUG-4A-2 (CAS SetRole),
BUG-4A-3 (mutex SetEpoch), BUG-4A-4 (single role.Load),
BUG-4A-6 (safeCallback recover)
837 tests (557 engine + 280 iSCSI), all passing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-01 16:00:06 -08:00
Ping Qiu and Claude 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
Ping Qiu and Claude Opus 4.6
6a400f6760
feat: add BlockVol engine and iSCSI target (Phase 1 + Phase 2)
...
Phase 1: Extent-mapped block storage engine with WAL, crash recovery,
dirty map, flusher, and group commit. 174 tests, zero SeaweedFS imports.
Phase 2: Pure Go iSCSI target (RFC 7143) with PDU codec, login
negotiation, SendTargets discovery, 12 SCSI opcodes, Data-In/Out/R2T
sequencing, session management, and standalone iscsi-target binary.
164 tests. IQN->BlockDevice binding via DeviceLookup interface.
Total: 338 tests, 14.6K lines.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-28 09:32:01 -08:00
Ping QiuandClaude Opus 4.6