Oliver Kieselbach e63a0bc2bd perf(metrics): fix Platform Usage client timeout — parallel projected scans, 15min cache, single-flight, progress UX ...

Fresh cross-tenant usage computes took 20-43s server-side but the web app's
default 30s fetch timeout aborted them client-side (HTTP 499), and every
retry stacked another concurrent full compute.

Backend:
- UsageMetricsService: cache 5→15min, single-flight per days-window (retries
  join the in-flight compute), the four source scans run concurrently via
  Task.WhenAll, statics converted to instance fields (singleton, testable)
- New column-projected queries for the usage compute only:
  GetUsageWindowSessionsAsync ($select 13 consumed columns, drops
  FailureSnapshotJson & co.) and GetAppInstallRefsAsync ($select
  SessionId+AppName, lean SessionAppRef DTO); GetSessionsByDateRangeAsync
  is untouched for its other consumers
- Projection equivalence pinned by UsageMetricsProjectionEquivalenceTests
  (incl. the WhiteGlove Part-2 duration branch via IsPreProvisioned/
  ResumedAt); single-flight/cache/failure-eviction pinned by
  UsageMetricsServiceSingleFlightTests

Web (SectionPlatformUsage):
- 180s AbortSignal for this call (backend keeps computing and caches)
- Calculating card with elapsed time and a progress bar sized from the last
  fresh-compute duration (localStorage, cache hits excluded, capped at 95%)
- Friendly timeout error explaining the retry will hit the server cache

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-11 12:10:56 +02:00

..

AutopilotMonitor.DecisionCore

fix(decision-core): rebase esp-exit advisory window on reboot instead of cancelling (session 7443317c)

2026-07-10 18:42:23 +02:00

AutopilotMonitor.Shared

perf(metrics): fix Platform Usage client timeout — parallel projected scans, 15min cache, single-flight, progress UX

2026-07-11 12:10:56 +02:00

LICENSE

update license

2026-03-26 07:02:33 +01:00