Minor incident

Cornerstone: EU FRA SL1 Swimlane – System Latency

Affected: Response Time

Current status of Cornerstone: Operational — live Cornerstone status

Timeline

1. Oct 2, 2026, 14:34 UTC
   investigating
   Clients with portals hosted in this swimlane may experience slower response times when accessing certain areas of the application. We are currently investigating the issue.
2. Oct 2, 2026, 16:14 UTC
   investigating
   We are continuing to actively investigate the latency issue and are treating this as a top priority. Our teams remain engaged and are working to identify the cause and restore normal performance as quickly as possible. We will continue to provide regular updates as our investigation progresses.
3. Oct 2, 2026, 18:27 UTC
   monitoring
   We have implemented a fix, and the latency has been resolved. We are closely monitoring the environment to ensure performance remains stable and the issue does not recur.
4. Oct 2, 2026, 23:07 UTC
   resolved
   The CSOD Technology Team observed a performance degradation affecting this swimlane. After a period of monitoring we are considering the issue Resolved. The problem began at 7:46 AM Pacific Time and was resolved at 10:47 AM Pacific Time. During this time, clients with portals on this swimlane may have experienced slow performance or intermittent errors while accessing the application.
5. Oct 19, 2026, 17:18 UTC
   postmortem
   **Root Cause Analysis** **Incident Summary:** On Oct. 1st and again on Oct. 2nd, 2026, users across the FRA SL1 Production environment experienced issues accessing Learner Home. **Impact:** Affected users experienced difficulties loading Learner Home and increased response times, resulting in a degraded learning experience. **Root Cause:** The incident was caused by elevated resource utilization in the FRA SL1 Production environment. This affected the performance of backend application components, resulting in increased response times and intermittent errors. **Resolution:** The team implemented corrective configuration changes and took steps to improve resource utilization. Following these actions, Learner Home functionality recovered and the immediate incident was resolved. **Preventive Measures:** * The team has added additional capacity to the EU Production environment * Planned workload redistribution to improve resource utilization and balance the load across the environment * Monitoring will continue to identify potential performance degradation and help maintain service stability

Updates as published by Cornerstone (original).