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Payment service returning 503 errors
INC-4821·14:23 UTC·47 min
SEV-1Identified
DKIncident Commander
RPBackend Lead
LCSRE On-Call
MHCommunications
Timeline
14:23Investigating

Alerts triggered: payment-service error rate >5% across all regions

System
14:28Investigating

Confirmed 503 errors on /api/payments/charge endpoint. Upstream dependency check in progress.

Lisa Chen
14:35Identified

Root cause identified: connection pool exhaustion on payment-db-primary. Max connections reached at 500/500.

Ravi Patel
14:42Identified

Deploying hotfix to increase pool size to 750 and terminate idle connections. ETA 5 minutes.

Ravi Patel
Runbooks
Incident INC-4821 opened by automated alert14:23
LC
Lisa Chen14:24

I'm seeing the alerts. Pulling up dashboards now. Error rate is climbing fast — 12% and rising.

DK
Dana Kim14:25

Declaring SEV-1. All hands on deck. @Ravi can you check the payment service pods and DB connections?

RP
Ravi Patel14:27

On it. Seeing high connection wait times on the primary DB. Looks like pool exhaustion. Checking max connections config now.

Status updated to Identified14:35
RP
Ravi Patel14:36

Confirmed. Pool is maxed at 500 connections. We had a spike from the batch job that started at 14:20. Preparing a config change to bump the limit and kill idle connections.

MH
Marcus Hall14:38

I'll draft the customer status page update. Ravi, what's the ETA for the fix?

RP
Ravi Patel14:39

5 minutes to deploy the config change. Should see recovery within 2 minutes after that.