Treasure Data incident
[ US region ] Audience Studio – Intermittent Query Expired Errors When Retrieving Segment Counts
Treasure Data experienced a major incident on October 15, 2025 affecting Web Interface, lasting 1d 7h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 15, 2025, 06:16 PM UTC
We are currently investigating an issue where some customers are experiencing intermittent “query expired” errors when retrieving segment counts in Audience Studio. In many cases, queries may succeed after a retry, but this behavior can impact the ability to view or use segment results reliably. Our engineering teams are actively investigating the root cause and working to mitigate the issue. We will provide updates here as soon as more information becomes available. In the meantime, affected users may be able to work around the issue by retrying the query after a short interval.
- monitoring Oct 16, 2025, 05:05 AM UTC
We've identified that an internal component between our query engine which extracts the number of records that match Segment rules and Audience Studio ran into a capacity issue during a specific time. We have increased the capacity and will continue to monitor the situation. If the issue does not reoccur by approximately 2025/10/17 01:00 (+00:00), we will consider this incident resolved and close this.
- resolved Oct 17, 2025, 01:55 AM UTC
After a successful monitoring period, we can confirm that our fix is working and the issue is now resolved. Thank you for your patience.