Degraded Performance – Data Modeling Service Experiencing Increased Error Rates, including 408 Request Timeout errors.

Update timeline

1. investigating Apr 01, 2026, 07:44 AM UTC

   Status: Investigating "We are currently investigating an issue affecting the Data Modeling service. Some users may experience degraded performance and increased error rates, including 408 Request Timeout errors. Our engineering team is actively working to resolve the issue. We will provide further updates as the situation develops. " Affected components Cognite Maintain (Degraded performance) Cognite InField (Degraded performance) Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance)

2. investigating Apr 01, 2026, 07:54 AM UTC

   Status: Investigating Please be informed that DMS services will be temporarily unavailable during the scheduled maintenance window. Maintenance Window: 16:00 – 18:00 CEST / 23:00 – 01:00 JST Cluster: az-tyo-gp-001 Affected components Cognite InField (Degraded performance) Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance) Cognite Maintain (Degraded performance)

3. monitoring Apr 01, 2026, 02:48 PM UTC

   Status: Monitoring The scheduled maintenance has been successfully completed, and DMS service has returned to normal operation. The engineering team is continuing to monitor the service to ensure stability. Affected components Cognite Maintain (Operational) Cognite InField (Operational) Cognite Data Fusion UI (Operational) Cognite Data Fusion API (Operational)

4. investigating Apr 02, 2026, 08:26 AM UTC

   Status: Investigating We have observed that DMS services remain unstable. Consequently, the engineering team has decided to conduct additional emergency maintenance. Please be informed that DMS services will be temporarily unavailable during the maintenance window. Emergency Maintenance Window: 17:00 – 18:00 CEST / 00:00 – 01:00 JST Cluster: az-tyo-gp-001 Affected components Cognite Data Fusion API (Degraded performance) Cognite Maintain (Degraded performance) Cognite InField (Degraded performance) Cognite Data Fusion UI (Degraded performance)

5. identified Apr 02, 2026, 04:01 PM UTC

   Status: Identified Our teams have completed the emergency maintenance successfully, the engineering team is continuing to monitor the service to ensure stability. Affected components Cognite Maintain (Degraded performance) Cognite InField (Degraded performance) Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance)

6. monitoring Apr 02, 2026, 08:25 PM UTC

   Status: Monitoring Service success rates have recovered to 100%, and the affected dashboards are now reporting normal operation. The team is continuing to monitor the situation closely Affected components Cognite Maintain (Operational) Cognite InField (Operational) Cognite Data Fusion UI (Operational) Cognite Data Fusion API (Operational)

7. resolved Apr 23, 2026, 05:53 PM UTC

   Status: Resolved Since the success rates have returned to 100%, and all affected dashboards are reporting normal operation. The issue has been fully resolved. Affected components Cognite Data Fusion UI (Operational) Cognite Data Fusion API (Operational) Cognite Maintain (Operational) Cognite InField (Operational)