TimelineUnified operational feed · all environments
MORNING BRIEF · May 9, 2026 · 15:08 UTC

Production is recovering. The 14:12 deploy of web-api@7d3f2c1 introduced an N+1 query that exhausted the orders-db pool — already rolled back at 14:34.

Customer impact: 1,240 carts over a 24-minute window. AWS Lambda retry storm cost ≈$214 — self-resolved on rollback. A forward fix is queued (PR #2853).

Last hour at a glance
checkout p95
184 ms
back to baseline
5xx rate
0.12 %
from 1.8% peak
orders-db p99
212 ms
12.4s peak
Lambda spend
$612
+18% vs forecast
Services healthy
7 / 8
1 recovering
Open incidents
0
1 resolved 26m ago
Deploys today
4
2 by Maya · 2 by Priya
AWS run rate
$612
+18% vs forecast
Unified timeline

Operational events

all environments · last 6 hours
Recovery14:42 UTC· now − 26m checkout-svc web-api
checkout-svc fully recovered
Error rate back to baseline (0.12%). p95 latency 184ms (normal).
Deploy14:34 UTC· now − 34m web-api
web-api rolled back to a91be4f
Triggered by Maya Chen. Rolled back from 7d3f2c1 → a91be4f via GitHub Actions.
Incident14:31 UTC· now − 37m checkout-svc orders-db web-api
INC-2419 · checkout latency & elevated errors
p95 latency rose from 210ms → 4.8s. 5xx error rate +340% on /v2/checkout/finalize.
AI Insight
Strong correlation (0.94) with web-api@7d3f2c1 deploy at 14:12. Likely root cause: N+1 query against orders.line_items in finalizeOrder().
Source · AI Incident DetectionImpact · ~1,240 carts affected · est. revenue at risk $18.4k
Cost anomaly14:24 UTC· now − 44m billing-worker
AWS Lambda invocations spike (2.3× normal)
billing-worker retry rate climbed to 38%. Projected $214/day overage if sustained.
Database14:21 UTC· now − 47m orders-db
orders-db slow query detected
p99 query latency 1.8s → 12.4s on SELECT * FROM line_items WHERE order_id = $1.
Errors14:18 UTC· now − 50m checkout-svc
Error spike on /v2/checkout/finalize
5xx rate 0.4% → 1.8%. Thrown from POST handler, line 87 — pg connection pool exhaustion.
Deploy14:12 UTC· now − 56m web-api
web-api deployed: 7d3f2c1
Deployed by Maya Chen. PR #2847 · Optimize checkout finalize hot path.
Scaling13:48 UTC· now − 1h 20m auth-svc
auth-svc scaled 3 → 5 replicas
HPA triggered on sustained CPU > 65% over 5m window.
Deploy12:02 UTC· now − 3h search-svc
search-svc deployed: 4f1ad22
PR #2839 · Add result re-ranker. Canary held 12m, promoted clean.
Info09:30 UTC· May 9 · morning orders-db
Nightly backups verified across 4 databases
All restores tested clean. Avg restore window: 41s.