Dagster: Serverless tasks failing to start
Affected components: API
Timeline of updates
- monitoring
We observed an increase in Dagster+ serverless runs failing to start between 10:50AM and 11:00AM PST. Our cloud provider indicated an incident on their end which we have linked to these issues. Failure rate has since gone back down, we will post more information as we learn more.
- resolved
Our cloud provider has confirmed that there was a service degradation between 10:48 AM and 11:01 AM PDT causing an increase in task launch error rates. We are implementing additional retry behavior and fault tolerance to prevent similar issues in the future from causing runs to fail to launch.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
4472cff4f785fec9…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Dagster, started 2026-04-29 18:16 UTC, resolved after 1.2 h, 2 update(s).
- Title
- Serverless tasks failing to start
- Vendor
- Dagster
- Date
- URL
- https://rewindex.com/company/dagster/incidents/zg4v9yl1ksd0
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