Upstash outage, 23 January 2026

Upstash Redis: Intermittent latency on us-east-1

Started
Resolved
23 Jan 2026, 15:30 UTC - reported afterwards
Impact
Minor

Last update from Upstash

We identified the cause of elevated latency impacting some databases in us-east-1 region between 15:30-15:35 UTC as a sudden surge of connection attempts that hit OS-level connection limits on our proxy layer. This resulted in slower new connection establishment and increased latency for some requests. Databases were not impacted. We are implementing additional proxy-level metrics and safeguards to detect and manage similar edge cases earlier.

23 Jan 2026, 15:30 UTC

Read the full incident on the official Upstash status page

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Other Upstash incidents

  1. Brief connection proxy degradation in us-east-1

  2. Intermittent DNS Resolution Errors for Upstash Vector in US East (us-east-1)

  3. Upstash Console login issue

  4. Message Persistence Issue - QStash us-east-1

  5. Fly.io infrastructure disruption affecting some Upstash Redis databases on Fly.io DFW Region

  6. QStash us-east-1 - URL Publish Errors

  7. Upstash Redis Partial Service Disruption

  8. QStash EU Region - Degraded Performance

All recorded Upstash incidents