Extreme slowness on Raw storage in AZ-EASTUS-1

Update timeline

1. investigating Apr 29, 2026, 06:43 PM UTC

   Cognite is investigating a large slowdown on Raw storage in AZ-EASTUS-1. Slowdowns have been experienced by multiple customers. More information will follow as our investigation continues. ***UPDATE*** Cognite has deployed a new Raw DB to AZ-EASTUS-1. We are observing the load to the new database to see how much the new db will alleviate the slowness. This could take a bit of healing time. Cognite is also requesting updates from Microsoft on the Sev A case currently opened.

2. investigating Apr 29, 2026, 06:45 PM UTC

   ***UPDATE*** Cognite has deployed a new Raw DB to AZ-EASTUS-1. We are observing the load to the new database to see how much the new db will alleviate the slowness. This could take a bit of healing time. Cognite is also requesting updates from Microsoft on the Sev A case currently opened.

3. identified Apr 30, 2026, 03:31 AM UTC

   The immediate performance issue for new tables has been mitigated. Teams have confirmed a significant speed improvement when data is reingested into new tables, with successful runs of key workflows. However, existing tables remain on the original, slower cluster. Their performance is still degraded and is dependent on performance enhancements of a 3rd party service.

4. resolved Apr 30, 2026, 11:28 AM UTC

   The issue is resolved now and the service is back to normal.