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Fly.io · Cloud and hostingSep 23, 2026, 12:42 UTC

Upstash unavailability in FRA region

MajorNot disclosedUpdated 6h ago
Sep 23, 12:42 UTCSep 23, 14:03 UTC
Duration
1h 22m
Impact
Major
Root cause
Not disclosed
Fly.io, 90 days
52 incidents
Affected
Upstash for RedisExtensions - Upstash for Redis
Status page

Final update

## 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.

Timeline

  1. Postmortem · Sep 24, 07:22 UTC
    ## 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.
  2. Resolved · Sep 23, 14:03 UTC
    This incident has been resolved.
  3. Monitoring · Sep 23, 13:08 UTC
    A fix has been implemented and we are monitoring the results.
  4. Investigating · Sep 23, 12:42 UTC
    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.

More from Fly.io

Full history
StartedIncidentDuration
Sep 2416:31 UTCState database issues in GRU2h 40m
Sep 2414:51 UTCPrivate Networking issues (6PN)46m
Sep 2318:44 UTCPartial Sprites outage7h 28m
Sep 2314:47 UTCElevated private networking errors36m
Sep 2306:18 UTCIPv6 Networking Issues in DFW5h 57m
Sep 1504:08 UTCDepot builder failures1h 25m

Sources: vendors' own status pages, published postmortems and SEC 8-K Item 1.05 filings, read daily. Times as reported. Logos via logo.dev; trademarks belong to their owners.

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