Intermittent AWS connection failures affecting query reliability

We have identified and mitigated an issue that was causing intermittent failures when refreshing temporary credentials for AWS workspace connections. Customers running queries against AWS tables on affected connections may have seen ExpiredToken errors over the past several hours.

Engineering has scaled up the backend workers responsible for credential refresh and the failure signal has stopped. All connections that were affected have recovered, and queries shoul...

We have identified the cause as contention in the backend worker pool responsible for refreshing AWS credentials. Engineering is working on a mitigation

We are investigating intermittent failures with the AWS temporary credential refresh process for workspace connections. Affected customers may see ExpiredToken or other authentication errors when running queries or refreshing datatanks against AWS connections. The issue is intermittent and impacts a subset of connections at any given time. GCP, Azure, and other connection types are not affected. Engineering is actively investigating and we will post updates as we have more information.