Outage in Braintrust
Upstream package mirror is degraded, Brainstore is not currently affected
Resolved Minor
August 19, 2026 - Started 5 days ago
- Lasted about 5 hours
Incident Report
Summary AI Generated
An upstream APT package mirror on AWS us-east-1 experienced degradation for approximately 4.6 hours, posing a risk that any EC2 instance replacements triggered by healthcheck failures or deployments could fail to initialize. While Braintrust itself remained operational with no direct downtime, both Braintrust-hosted and self-hosted data planes were at risk during the incident. The team investigated alternative package mirrors as a mitigation while awaiting resolution of the upstream issue.
The upstream APT package mirror on AWS us-east-1 is degraded. There is currently no downtime and we are looking into alternative package mirrors in the meantime.
Please note that for both the Braintrust-hosted data plane and self-hosted data planes:
EC2 instance replacement due to healthcheck failures or deploys may result in failed instance initialization and downtime until the upstream issue is resolved.
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MONITORING
5 days ago - at 08/19/2026 06:01PM
The upstream APT package mirror on AWS us-east-1 is degraded. There is currently no downtime and we are looking into alternative package mirrors in the meantime.
Please note that for both the Braintrust-hosted data plane and self-hosted data planes:
EC2 instance replacement due to healthcheck failures or deploys may result in failed instance initialization and downtime until the upstream issue is resolved.
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