Outage in MongoDB
GCP Availability Zone europe-west2-b connectivity issues
Resolved MinorIncident Report
Summary AI Generated
MongoDB Atlas experienced connectivity issues in GCP availability zone europe-west2-b from 0600 UTC, lasting approximately 12.6 hours on October 20, 2026. While the affected zone's nodes were degraded, 3-node Atlas clusters remained operational by serving reads and writes through the two unaffected availability zones in the region. The incident, rooted in an underlying Google Cloud infrastructure issue, was resolved by 2009 UTC after connectivity to the affected zone was restored.
Since 0600 UTC we have observed cluster node connectivity issues isolated to a single availability zone, GCP europe-west2-b.
Atlas clusters are distributed across multiple AZs and 3-node clusters can continue to serve reads and writes from nodes in the other 2 Availability Zones in this region.
We are working with our partners to resolve the cause of the issue and restore service to the affected nodes.
Components affected
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Latest Updates ( sorted recent to last )
RESOLVED
6 days ago - at 10/20/2026 08:09PM
This incident has been resolved.
MONITORING
7 days ago - at 10/20/2026 11:43AM
We are seeing signs of Availability Zone connectivity improving and are continuing to monitor.
IDENTIFIED
7 days ago - at 10/20/2026 08:38AM
The Google Cloud status page has been updated to report further information, follow this link for details https://status.cloud.google.com/incidents/Xs2XTHzAVC9YnafnPyzj
IDENTIFIED
7 days ago - at 10/20/2026 07:32AM
Since 0600 UTC we have observed cluster node connectivity issues isolated to a single availability zone, GCP europe-west2-b.
Atlas clusters are distributed across multiple AZs and 3-node clusters can continue to serve reads and writes from nodes in the other 2 Availability Zones in this region.
We are working with our partners to resolve the cause of the issue and restore service to the affected nodes.
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