Ping Qiu and Claude 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 Qiu and Claude Opus 4.6
74e8a4ce68
feat: CP11A-1 storage profile type, superblock persistence, and validation
...
Add StorageProfile enum (single=0, striped=1 reserved) persisted at
superblock offset 105. Existing volumes auto-map to single via zero-pad
backward compatibility. CreateBlockVol rejects striped and invalid
profile values before file creation. ParseStorageProfile is
case-insensitive and whitespace-tolerant.
13 tests: enum string/parse, superblock persistence, backward compat,
create/open/reopen, striped rejection, invalid profile rejection.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-11 21:52:00 -07:00
Ping Qiu and Claude 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 Qiu and Claude Opus 4.6
a107685f00
feat: Phase 4A CP1 — epoch, lease, role state machine, write gate
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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
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
