Ping QiuandClaude Opus 4.6
531ee764ee
CHAP authentication (RFC 7143 S12.1): - auth.go: CHAPAuthenticator with MD5 challenge-response, ValidateCHAPConfig - login.go: multi-PDU SecurityNeg flow (challenge → verify → transit) - main.go: -chap-user/-chap-secret CLI flags with validation Online volume expand: - blockvol.go: Expand() with flusher pause, snapMu TOCTOU guard, alignment check - Rejects shrink (ErrShrinkNotSupported) and resize with active snapshots Prometheus metrics: - metrics.go: metricsAdapter wrapping BlockDevice, 15 metrics (counters, histograms, gauge funcs for WAL/dirty-map/epoch/role/snapshots) - Dedicated prometheus.NewRegistry() per server instance Admin HTTP endpoints: - POST /snapshot (create/delete/restore/list) - POST /resize (online expand) - GET /metrics (Prometheus text format) - VolumeSize added to /status response Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2.4 KiB
Phase 5 Dev Log
Append-only communication between agents. Newest entries at bottom.
Each entry: [date] [role] message
Roles: DEV, REVIEWER, TESTER, ARCHITECT
[2026-03-03] [DEV] CP5-1 ALUA + multipath complete. Added ALUA provider + REPORT TPG (implicit ALUA), VPD 0x83 NAA+TPG+RTP descriptors, TPGS=01 in INQUIRY, standby write fencing, and -tpg-id flag. Added UUID to VolumeInfo for shared NAA. Added multipath config and setup script. 4 multipath integration tests added. 10 ALUA unit tests added (SCSI tests total 53). Reviewer fixes applied: RoleNone maps to Active/Optimized to avoid single-node regression; REPORT TPG advertises T_SUP when state is Transitioning; TPG ID validation; non-ASCII log fix. Added 2 tests: alua_role_none_allows_writes and alua_report_tpg_transitioning. All unit tests pass, Linux cross-compile verified.
[2026-03-03] [TESTER] CP5-1 adversarial suite: 16 tests added/validated (state boundaries, VPD 0x83, REPORT TPG, concurrency, INQUIRY invariants). All 16 PASS. No regressions in engine + iSCSI tests.
[2026-03-03] [DEV] CP5-2 CoW snapshots completed. Fixes applied from review: DeleteSnapshot pauses flusher before closing delta; RestoreSnapshot checks PauseAndFlush error + defers Resume; CreateSnapshot holds snapMu across check/insert; Delete/Restore use beginOp/endOp; lock order documented (flushMu -> snapMu); non-ASCII punctuation removed; persistSuperblock now returns error and callers propagate. All tests passing (known pre-existing flaky rebuild_full_extent_midcopy_writes under full-suite load).
[2026-03-03] [TESTER] CP5-2 QA adversarial suite: 22 tests in 5 groups (races, role rejection, edge cases, lifecycle, restore correctness) all PASS. Confirms fixes for delete_during_flush_cow, concurrent_create_same_id, and restore path nextLSN reset.
[2026-03-03] [DEV] CP5-3 implementation complete. CHAP: ValidateCHAPConfig with ErrCHAPSecretEmpty and CLI guard requires -chap-secret when -chap-user is set. Login SecurityNeg echoes AuthMethod=CHAP on second PDU after verify; test assertion added. Metrics adapter docs clarify counters count attempts; /metrics inherits admin auth noted in header comment. All CP5-3 tests pass; only pre-existing flaky rebuild_catchup_concurrent_writes observed under full suite.
[2026-03-03] [TESTER] CP5-3 QA adversarial: 28 tests added (16 CHAP + 12 resize) all PASS. No new bugs. Full regression clean except pre-existing flaky rebuild_catchup_concurrent_writes.