AWS - US West (Oregon): INC0148166
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/INC0148166
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 experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
Incident start time: 23:45 UTC December 09, 2025
Incident end time: 00:23 UTC December 10, 2025
Preliminary root cause: The metadata database infrastructure experienced an increase in workload, resulting in degraded query performance for a subset of customers.
A root cause analysis (RCA) document will be published within five business days.
Customer experience: Customers hosted in the specified regions may experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
Incident start time: 23:45 UTC December 09, 2025
Incident end time: 00:23 UTC December 10, 2025
Preliminary root cause: The metadata database infrastructure experienced an increase in workload, resulting in degraded query performance for a subset of customers.
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 experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
Incident start time: 23:45 UTC December 09, 2025
Incident end time: 00:23 UTC December 10, 2025
Preliminary root cause: The metadata database infrastructure experienced an increase in workload, resulting in degraded query performance for a subset of customers.
Customer experience: Customers hosted in the specified regions may experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
Incident start time: 23:45 UTC December 09, 2025
Incident end time: 00:23 UTC December 10, 2025
Preliminary root cause: The metadata database infrastructure experienced an increase in workload, resulting in degraded query performance for a subset of customers.
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 experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
Customer experience: Customers hosted in the specified regions may experience degraded performance or delayed query results when managing or querying data. Queries may take longer than usual to complete, and affected users may see timeout errors.
This incident affected: AWS - US West (Oregon) (Databases, Tables, and Views).