Fly.io investigating Upstash outage in FRA region

Upstash services in Frankfurt experiencing connection failures; Fly.io working to restore availability.

By The Downtime · Sep 23, 2026 · 12:45 PM ·Updated 1 week ago

Fly.io is investigating a major incident affecting Upstash services in the fra (Frankfurt) region. Customers may experience connection failures or service unavailability, the company said.

Fly.io is a cloud platform that provides infrastructure and deployment services for developers building and running applications.

The incident was identified and reported as currently under investigation. Fly.io said it is working with Upstash to identify the underlying cause and restore service. The company has committed to providing updates as more information becomes available.

This is a developing story and will be updated as the situation evolves.

🕒 Live updates (4)

postmortem Sep 24, 7:22 AM

## Impact From about 12:00 to 13:05 UTC, some clients got connection timeouts to their Redis databases. Affected were databases hosted in fra or gig, and clients whose connections were routed through fra or gig, even if their database is hosted in another region. ## What happened During a planned rolling upgrade, replicas in fra and gig did not finish draining and were left out of service. They were returned to Fly routing before they were ready to accept connections. Connections routed to them then timed out. ## What we're changing * We will be adding tooling to return a replica to service safely after maintenance. * We will be adding safety checks to our upgrade process. * We will make the upgrade procedure more resilient to errors like this one.

resolved Sep 23, 2:03 PM

This incident has been resolved.

monitoring Sep 23, 1:08 PM

A fix has been implemented and we are monitoring the results.

investigating Sep 23, 12:42 PM

We are investigating an issue affecting Upstash services in the fra region. Customers may experience connection failures or service unavailability. We are working with Upstash to identify the cause and restore service. We’ll provide an update as soon as we have more information.

📎 Sources

Fly.io status ↗

Outage details are aggregated from official provider status pages. The Downtime reports them as a public service and is not affiliated with the providers named.