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3 Commits
Author SHA1 Message Date
Ping QiuandClaude Opus 4.6 683969086c feat: CP11B-1 provisioning presets + review fixes 
Preset system: ResolvePolicy resolves named presets (database, general,
throughput) with per-field overrides into concrete volume parameters.
Create path now uses resolved policy instead of ad-hoc validation.
New /block/volume/resolve diagnostic endpoint for dry-run resolution.

Review fix 1 (MED): HasNVMeCapableServer now derives NVMe capability
from server-level heartbeat attribute (block_nvme_addr proto field)
instead of scanning volume entries. Fixes false "no NVMe" warning on
fresh clusters with NVMe-capable servers but no volumes yet.

Review fix 2 (LOW): /block/volume/resolve no longer proxied to leader —
read-only diagnostic endpoint can be served by any master.

Engine fix: ReadLBA retry loop closes stale dirty-map race when WAL
entry is recycled between lookup and read.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-22 14:44:24 -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 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