Sigma Computing incident
Snowflake tables not loading on AWS US West 2
Sigma Computing experienced a major incident on September 4, 2024 affecting Sigma - AWS (US), lasting 52m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 04, 2024, 02:31 PM UTC
At approximately 7 am PST, Sigma users on AWS US West experienced long running workbook queries on Snowflake tables that may result in a timeout. This incident is now actively under investigation. We are treating this as our highest priority. Our apologies for any inconvenience caused. Impacted Cloud Regions & Services: Sigma users hosted on AWS US West Incident Start Time: Approximately 14:00 UTC September 4, 2024
- investigating Sep 04, 2024, 02:32 PM UTC
We are continuing to investigate this issue.
- monitoring Sep 04, 2024, 02:57 PM UTC
Our engineers have implemented temporary mitigation measures to address the issue and we are monitoring their effect closely. Impacted Cloud Regions & Services: Sigma users hosted on AWS US West 2 User Experience: We expect the rate of errors for long running queries on Snowflake tables to decrease while working in Sigma Workbooks. Incident Start Time: Approximately 14:00 UTC September 4, 2024 Incident End Time: Approximately 14:30 UTC September 4, 2024
- resolved Sep 04, 2024, 03:50 PM UTC
The mitigation measures have proven effective, and the issue is resolved. We will perform a root cause analysis (RCA) and publish our findings in a postmortem note to the Sigma Community site in coming days. Impacted Cloud Regions & Services: Sigma users hosted on AWS US West 2 User Experience: We expect the rate of errors to be negligible for all Sigma users hosted on AWS US West 2 Incident Start Time: Approximately 14:00 UTC September 4, 2024 Incident End Time: Approximately 14:30 UTC September 4, 2024