Companies/Nebius/Incidents

Nebius: Region us-central1 partial degradation

Affected components: Object StorageUS-CENTRAL1 - Object StorageUS-CENTRAL1 - Virtual Private Cloud (Networking)Virtual Private Cloud (Networking)Token FactoryUS-CENTRAL1 - Token FactoryServerless AIUS-CENTRAL1 - Serverless AICompute CloudUS-CENTRAL1 - Compute CloudManaged Service for MLflowUS-CENTRAL1 - Managed Service for MLflowManaged Service for SkyPilotUS-CENTRAL1 - Managed Service for SkyPilotManaged Service for Kubernetes®US-CENTRAL1 - Managed Service for Kubernetes®Managed Service for PostgreSQL®US-CENTRAL1 - Managed Service for PostgreSQL®

Timeline of updates

1. investigating2026-08-19 10:43 UTC

   We are currently investigating this issue.

2. identified2026-08-19 11:18 UTC

   The root cause has been identified as overheating hardware. GPU performance is impacted, and some nodes may be unavailable.

3. identified2026-08-19 12:20 UTC

   We are still experiencing temperature issues in the us-central1. Team is working on it

4. identified2026-08-19 12:52 UTC

   The root cause was fixed, and the situation is stabilizing. The services are recovering.

5. identified2026-08-19 13:49 UTC

   Services are gradually continuing to recover.

6. identified2026-08-19 15:06 UTC

   Services are still gradually continuing to recover. Some virtual machines are already running, but not all of them.

7. identified2026-08-19 16:00 UTC

   Services are still gradually continuing to recover. Many of the virtual machines are already running, but not all of them.

8. identified2026-08-19 17:26 UTC

   Most nodes are operating normally. The Managed Service for Kubernetes® is experiencing a partial outage, and the team is actively working to restore it.

9. identified2026-08-19 19:13 UTC

   Most nodes are operating normally. The Managed Service for Kubernetes® is still degraded, but the situation is improving.

10. identified2026-08-19 20:50 UTC

    The Managed Service for Kubernetes is nearly fully restored, though a subset of nodes remains unavailable.

11. identified2026-08-19 21:59 UTC

    Most critical issues have been resolved and the region is operational, though a subset of nodes remains unavailable.

12. resolved2026-08-20 08:16 UTC

    This incident has been resolved.

13. postmortem2026-09-01 09:15 UTC

    [https://nebius.com/blog/posts/incident-post-mortem-analysis-us-central1-service-disruption-on-august-19](https://nebius.com/blog/posts/incident-post-mortem-analysis-us-central1-service-disruption-on-august-19)

Changes Rewindex caught on this incident

• Aug 19Major incident: Region us-central1 partial degradation

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

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