Resolved after 1 hour 45 minutes, affecting Qlik Cloud – AWS – Europe (Ireland), on February 25, 2025.
**Root Cause Analysis** On February 25, 2024, from 09:16 to 09:58 UTC, our platform experienced an incident due to a traffic surge, which led to critical services reaching their scaling limits. This resulted in performance degradation for users in Qlik Cloud - Europe \(Ireland\) attempting to browse the hub to open their apps. Qlik promptly initiated mitigation efforts to scale up impacted areas, restoring system stability. **Root Cause Summary and Remediation** The incident was triggered by a sudden increase in traffic that exceeded expected operational thresholds, requiring additional scaling. While automated scaling mechanisms were in place, certain bottlenecks prevented immediate expansion, necessitating manual intervention. Once scaling was applied, stability was restored, and further optimization was performed to enhance long-term resilience. We appreciate your patience and trust as we continuously enhance the performance and stability of our platform. To prevent similar occurrences, we have strengthened our monitoring and alerting capabilities for earlier detection, rescaled and optimized key bottleneck areas, and refined our scaling strategies to improve system resilience under high load conditions.
Affected components
Update timeline
- investigating Feb 25, 2025, 09:45 AM UTC
We’re currently experiencing a performance degradation issue at Qlik Cloud - Europe (Ireland) region. Customers may experience slowdown and intermittent failures when connecting to Qlik Cloud applications.
- identified Feb 25, 2025, 10:05 AM UTC
The issue has been identified and a fix is being implemented.
- monitoring Feb 25, 2025, 10:05 AM UTC
Qlik Cloud Service have all recovered, we will continue to monitor to confirm it is restored fully and we will update the status accordingly.
- resolved Feb 25, 2025, 11:30 AM UTC
This issue has been resolved. Your patience and support has been greatly appreciated!
- postmortem Mar 03, 2025, 06:01 PM UTC
**Root Cause Analysis** On February 25, 2024, from 09:16 to 09:58 UTC, our platform experienced an incident due to a traffic surge, which led to critical services reaching their scaling limits. This resulted in performance degradation for users in Qlik Cloud - Europe \(Ireland\) attempting to browse the hub to open their apps. Qlik promptly initiated mitigation efforts to scale up impacted areas, restoring system stability. **Root Cause Summary and Remediation** The incident was triggered by a sudden increase in traffic that exceeded expected operational thresholds, requiring additional scaling. While automated scaling mechanisms were in place, certain bottlenecks prevented immediate expansion, necessitating manual intervention. Once scaling was applied, stability was restored, and further optimization was performed to enhance long-term resilience. We appreciate your patience and trust as we continuously enhance the performance and stability of our platform. To prevent similar occurrences, we have strengthened our monitoring and alerting capabilities for earlier detection, rescaled and optimized key bottleneck areas, and refined our scaling strategies to improve system resilience under high load conditions.
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