Changes / Snowflake / INC20000046
Snowflake: Major incident: INC20000046
Summary
Snowflake reported a major outage in AWS - Europe (London), preventing Snowpark Container Services access and intermittently blocking Snowsight sign-ins with HTTP 500 errors. The stated impact began at 22:38 UTC June 22, 2026; recorded duration was 1 h 29 min, with resolution at 2026-06-23 02:35 UTC after reverting a recent configuration change.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: INC20000046
Before: not present
After: major
Before: not present
After: postmortem
Before: not present
After: 2026-06-23 01:05 UTC
Before: not present
After: 2026-06-23 02:35 UTC
Before: not present
After: Applications, AWS - Europe (London) - Applications, AWS - Europe (London) - Snowpark Container Services, Snowpark Container Services
Before: not present
After: Current status: We're investigating an issue with Snowpark Container Services and Snowsight. We'll provide an update within 60 minutes.
Customer experience: Customers hosted in the specified region may be unable to access Snowpark Container Services, and may intermittently be unable to sign in to Snowsight. Affected users may see HTTP 500 errors.
Incident start time: 22:38 UTC June 22, 2026
Before: not present
After: Current status: We identified and reverted a recent configuration change to resolve the impact. We'll continue to monitor the environment until we're confident all services are functioning properly. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified region may have been unable to access Snowpark Container Services, and may have intermittently been unable to sign in to Snowsight. Affected users may have seen HTTP 500 errors.
Workaround: There were no available workarounds for this issue.
Incident start time: 22:38 UTC June 22, 2026
Incident end time: 01:28 UTC June 23, 2026
Preliminary root cause: A recent configuration change affected DNS resolution in the region, which caused connectivity failures for Snowpark Container Services and Snowsight.
Before: not present
After: Current status: We've monitored the environment to confirm that reverting the configuration change restored service. If you experience additional issues or have questions, please open a support case via Snowflake Community or the Support page in Snowsight.
Customer experience: Customers hosted in the specified region may have been unable to access Snowpark Container Services, and may have intermittently been unable to sign in to Snowsight. Affected users may have seen HTTP 500 errors.
Workaround: There were no available workarounds for this issue.
Incident start time: 22:38 UTC June 22, 2026
Incident end time: 01:28 UTC June 23, 2026
Preliminary root cause: A recent configuration change affected DNS resolution in the region, which caused connectivity failures for Snowpark Container Services and Snowsight.
A root cause analysis (RCA) will be conducted and a summary will be shared on the Snowflake status page within 5 business days.
Before: not present
After: 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/INC20000046](https://community.snowflake.com/s/article/INC20000046)
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History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: INC20000046 (this change) Snowflake reported a major outage in AWS - Europe (London), preventing Snowpark Container Services access and intermittently blocking Snowsight sign-ins with HTTP 500 errors. The stated impact began at 22:38 UTC June 22, 2026; recorded duration was 1 h 29 min, with resolution at 2026-06-23 02:35 UTC after reverting a recent configuration change. | Major incident |
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