Cognite incident
DMS periodic instability on az-eastus-1, 5XX responses
Cognite is currently experiencing a major incident affecting Cognite Data Fusion API, which began 15 min ago. The vendor's full update timeline is below.
Affected components
Update timeline
- investigating May 21, 2026, 07:10 PM UTC
Status: Investigating We are currently investigating periodic instability affecting Data Modeling Storage (DMS) services on the az-eastus-1 cluster. Users may experience intermittent 5XX errors when accessing Data Modeling endpoints. Our engineering team is actively investigating. Affected components Cognite Data Fusion API (Partial outage)
- investigating May 21, 2026, 07:55 PM UTC
Status: Investigating Problem: The datamodelstorage service in az-eastus-1 is experiencing periodic spikes to 100% 5xx error rates, resulting in major outages for users. Impact: Multiple customers are receiving repeated 503 errors. All users on this cluster are likely affected. Sev A declared. Affected components Cognite Data Fusion API (Partial outage)
- identified May 21, 2026, 08:20 PM UTC
Status: Identified The engineers have identified the root cause and are working on a solution. Affected components Cognite Data Fusion API (Full outage)
- identified May 21, 2026, 08:26 PM UTC
Status: Identified Engineers have identified a mitigation action and are working on a temporary solution, as well as monitoring the situation. Affected components Cognite Data Fusion API (Full outage)
- monitoring May 21, 2026, 08:52 PM UTC
Status: Monitoring Cognite has reviewed deployment history, logs, and network dependencies. An internal process was found to be blocking operations. Cognite has stopped that process. The rates on the 500 errors has dropped, and the responsible engineering teams will resume investigation tomorrow. Affected components Cognite Data Fusion API (Full outage)