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checkout-edge Worker Critical Critical to your architecture.
Issue hotspot: 4 issues in the last 7 days
Change hotspot: 12 changes in the last 7 days
Cloudflare · coreplane · earth · Compute
hd-prod Hyperdrive Critical Critical to your architecture.
Change hotspot: 7 changes in the last 7 days
Cloudflare · coreplane · earth · Databases
ingest-events Lambda function Standard Important to your architecture.
Issue hotspot: 2 issues in the last 7 days
AWS · coreplane-prod · us-east-1 · Compute
payments-db Database Critical Critical to your architecture.
Issue hotspot: 1 issue in the last 7 days
Change hotspot: 3 changes in the last 7 days
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Issues Critical latency degradation in checkout-edge worker Overview
Critical latency degradation in checkout-edge worker
Incident critical Polylane ·Detected 3 hours ago ·Last seen 4 minutes ago ·2 occurrences
OverviewInvestigationMetricsTimelineProperties
checkout-edge › Cloudflare Worker Critical latency degradation detected in checkout-edge worker: 18x+ P99 latency spikes sustained for 12 minutes
Causal metrics All metrics
Request Duration
414 ms ▲ 43.1σ
Wall Time
416 ms ▲ 43.0σ
CPU Time
14 ms ▲ 2.6σ
Blast radius edge-gateway Cloudflare Worker ··· checkout-edge Cloudflare Worker ··· hd-prod Hyperdrive ··· payments-db PlanetScale ··· cart-svc Cloudflare Worker ···
Search your cloud resources...
5 resources Graph Table
edge-gateway Cloudflare Worker ··· checkout-edge Cloudflare Worker ··· hd-prod Hyperdrive ··· payments-db PlanetScale ··· cart-svc Cloudflare Worker ··· Analysis Copy
Deploy 9f3c2a1 shrank the Hyperdrive pool
hd-prod from 50 connections to 5. Under checkout load,
requests queue on connection checkout and P99 rises 18× against the 30-minute baseline. Restoring the pool size restores latency.
Tags
service · checkout-edgeprovider · cloudflaredeploy · 9f3c2a1signal · wall_time_p99
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Problems detected by Polylane and alerts from your monitoring tools, triaged automatically.
IncidentsNo incidentAll Search issues... Filter
Title Detected by Impact Severity Status Occurrences
Critical latency degradation in checkout-edge worker 
Polylane checkout-edge Cloudflare Worker critical Incident 2
Polylane checkout-edge Cloudflare Worker critical Incident 2 checkout-edge P99 latency above 2s for 5m 
Datadog checkout-edge Cloudflare Worker critical Incident 118
Datadog checkout-edge Cloudflare Worker critical Incident 118 TypeError: cannot read 'region' of undefined in checkout handler 
Sentry 
cart-svc Deployment medium Triaging 41
Sentry cart-svc Deployment medium Triaging 41 edge-gateway 5xx ratio above 1% for 5m 
Grafana Cloud 
edge-gateway Fly Machine medium No incident 6
Grafana Cloud edge-gateway Fly Machine medium No incident 6 orders-db CPUUtilization above 80% 
CloudWatch 
orders-db Aurora cluster low No incident 1
CloudWatch orders-db Aurora cluster low No incident 1 payments-api webhook retry queue depth above 5,000 Datadog payments-api Cloudflare Worker high Resolved 3
Datadog payments-api Cloudflare Worker high Resolved 3 Ele corrige problemas, não sintomas. Ele encontra a causa raiz de cada issue que detecta e envia PRs para corrigir.
github.com/coreplane/payments-api/pull/491
Cap retries on the checkout webhook worker #491
polylane Open polylane wants to merge 1 commit into
main from polylane/autofix/chat/k3x9f2-4e7d21a Conversation 1 Commits 1 Checks 1 Files changed 2
polylane bot commented 6 minutes ago ···
Retries on the checkout webhook worker were unbounded: a failing delivery re-queued itself forever and amplified load on payments-api. This caps delivery at 5 attempts with exponential backoff and dead-letters the payload after the last one.
What changed
worker/deliver.ts gains MAX_DELIVERY_ATTEMPTS = 5 and backoff between attempts; exhausted payloads land in checkout-webhooks-dlq instead of re-queueing.
Validation
npm test — 214 passed. A forced failing delivery stopped after 5 attempts and appeared in the dead-letter queue.
Root cause · Why it's safe · Out of scope
polylane added commit 4e7d21a Verified
Review required At least 1 approving review is required
ci / test Successful in 3m 12s Details
Review required Waiting on your review: Polylane never merges on its own
Merging is blocked
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# incidents
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Polylane Agent 2:14 AM
Critical latency regression on checkout-edge: Wall Time P99 is 18× baseline, sustained since 2:02 AM, and checkout requests are queuing. I'm investigating.
boris 2:15 AM
probably the Hyperdrive change in tonight's deploy?
👀 1 Polylane Agent 2:16 AM
Working on it
- ✓ Pulled the last 30 minutes of checkout-edge metrics
- ✓ Correlated with the change records
- ◐ Testing the Hyperdrive pool hypothesis
- ○ Draft the fix
status as of 2:17 AM UTC
Polylane Agent 2:19 AM
You're right. Deploy 9f3c2a1 shrank the
hd-prod connection pool from 50 to 5,
and checkout requests queue behind connections. Confirmed against the pool metrics and the change record.
Fix is drafted, coreplane/checkout-edge#142 restores the pool.
CI is running; I'll report back here.
Open in Polylane Configure
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claude — ~/checkout-edge
> make region a required field on the checkout request schema
●polylane · searchcallers of POST /checkout
●polylane · runToolqueryLogs · request shapes
⏺ Hold on: cart-svc and edge-gateway still send region-less requests, 41,200 in the last 24h. Requiring it now would 400 them both. Safer: default it, migrate the two callers, then require. Are you okay with this plan?
Waiting for your reply…
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Settings Memories
Memories
Institutional knowledge from investigations and observations.
All Mine Search memories... Filter 7 memories
Name Source Created by Created
hd-prod must keep 50 connections: at 5, checkout-edge requests queue and P99 rises 18x Investigation P System 3 hours ago
Deploys that touch checkout-edge's Hyperdrive binding need the pool size checked in review Change analysis P System 3 hours ago
cart-svc and edge-gateway still send region-less checkout requests; region stays optional until they migrate Investigation P System yesterday
payments-api webhook retries are capped at 5 with backoff since #491; dead-letters land in checkout-webhooks-dlq Change analysis P System 2 days ago
payments-db connection spikes follow cart-svc retries, not checkout traffic Observation P System 6 days ago
checkout-edge P99 sits at 1.4-1.8s on weekday evenings; the Sunday 02:00 UTC bump is the analytics backfill Observation P System 2 weeks ago
edge-gateway returns 502 for 40s after every deploy while its Fly machines drain; not an incident Change analysis P System 3 weeks ago
