GCP - Europe West 2 (London): INC0144138
Incident
Report for Snowflake
Postmortem
Snowflake Engineering has completed the postmortem of this service incident. A detailed Root Cause Analysis (RCA) is available on the Snowflake Community site: https://community.snowflake.com/s/article/INC0144138
Resolved
Current status: We've implemented the fix for this issue and monitored the environment to confirm that service was restored. If you experience additional issues or have questions, please open a support case via Snowflake Community.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:41 UTC September 30, 2025
Incident end time: 04:40 UTC September 30, 2025
Preliminary root cause: An uptick in resource utilization on some clusters degraded performance for a subset of customers in the region.
A root cause analysis (RCA) document will be published within five business days.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:41 UTC September 30, 2025
Incident end time: 04:40 UTC September 30, 2025
Preliminary root cause: An uptick in resource utilization on some clusters degraded performance for a subset of customers in the region.
A root cause analysis (RCA) document will be published within five business days.
Monitoring
Current status: We've implemented the fix for this issue, and we'll continue to monitor the environment until we're confident all services are functioning properly.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:41 UTC September 30, 2025
Incident end time: 04:40 UTC September 30, 2025
Preliminary root cause: An uptick in resource utilization on some clusters degraded performance for a subset of customers in the region.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:41 UTC September 30, 2025
Incident end time: 04:40 UTC September 30, 2025
Preliminary root cause: An uptick in resource utilization on some clusters degraded performance for a subset of customers in the region.
Identified
Current status: We've identified the source of the issue, and we're developing and implementing a fix to restore service. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: Our current estimate is that service will be restored within 2 hours. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 03:41 UTC September 30, 2025
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: Our current estimate is that service will be restored within 2 hours. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 03:41 UTC September 30, 2025
Investigating
Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:58 UTC September 30, 2025
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 03:58 UTC September 30, 2025
This incident affected: GCP - Europe West 2 (London) (Databases, Tables, and Views, Virtual Warehouses, Data Loading and Unloading, Applications, Snowpark Container Services, Security and Privacy Features, AI and ML, Organization and Account Management, Listings and Collaboration, Alerts and Notifications, Developer Tools, Business Continuity).