#122: the Notification Outbox KPI snapshots ORed every status in one
aggregation, which scanned the clustered index once the table held ~1 M
Parked rows (0.7-2.6 s; Health dashboard up to 5 s). Each snapshot now runs
three status-equality legs that seek their own index (~0.12 s); a cold Health
load on the rig is 0.12-0.52 s.
#123: site_events event_type/severity indexes are now composites with
timestamp, so a filtered page is read in order and stops at the limit
(severity=Error over 1 GB: 2,287 -> 15 ms cold, 115 -> 1.6 ms warm). Costs
454 -> 530 B/row, ~14 % fewer rows under the same cap. The schema apply drops
the old indexes in place; the cap size model samples timestamp three times
and re-scores inside its band with unchanged constants.
#124: the set-based AuditLog insert's NOT EXISTS probe scanned the EventId
index and concurrent writers deadlocked on S/IX page locks. WITH (FORCESEEK):
4 writers 775 rows/s + 76 deadlocks in 30 s -> 5,214 rows/s + 0. New
concurrent-writer regression test fails 4/4 without the hint.
Final consistency sweep per plan §6: verified component docs against shipped
WP1-WP3 + adversarial-review-fix state, corrected drift found in SiteRuntime
(recursion-exempt run cap, stale ScriptExecutionActor/AlarmExecutionActor
references), TemplateEngine (BundleImporter watermark path), DeploymentManager
(phase-2 PendingDeployment staging), CentralUI (shared KPI cache, dedup'd alarm
poll, render coalescing), StoreAndForward (rate-limited drop logging), and
ConfigurationDatabase (documented DbContext-pooling non-adoption). Updated the
docs/components/ developer-reference set (SiteRuntime, SiteEventLogging,
InboundAPI) to drop the deleted per-run actor classes. Amended one known-issue
for the superseding MaxBatchSize:64 read-page pin. Added CLAUDE.md bullets for
stream graceful-completion reconnect, the required site audit DB path, honest
CLI HTTP timeouts, bulk DeploySiteAsync, and LocalDb 0.2.1. New execution log
records the phase→commit map, gate results, adversarial-review tally, the
three test-flake root causes, and the nine-item residuals register.
Joseph Doherty