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2026-September-02 Service Incident
Incident
Report for Sauce Labs
Postmortem
Dates: Wednesday, September 2nd 2026, 08:30 UTC - 11:15 UTC.
What happened:
Real Device Automated Tests experienced failure to start in the EU Central data center, with elevated error rates reaching nearly 100% for short periods of time.
Why it happened:
A deployment led to increased cache misses and elevated load on the underlying infrastructure.
How we fixed it:
Service was restored by restarting the application.
What we are doing to prevent it from happening again:
Additional resources were allocated to reduce the likelihood of a recurrence in the short term.
In the long term, we will optimize the performance of resource intensive tasks and introduce dynamic scaling.
Resolved
After taking remedial action, Real Device test error rates have returned to normal in the EU-Central-1 data center. All services are fully operational.
Identified
The root cause of the elevated error rates for Real Device tests in the EU-Central-1 data center has been identified. Remediation has been applied, and we are actively monitoring the situation.
Investigating
We are seeing elevated error rates for Real Device tests in EU-Central-1 data center. We are investigating.