Upstash incident: Upstash Redis: Intermittent latency on us-east-1

1. resolvedJan 23, 2026, 15:30 UTC

   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.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Upstash's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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Upstash reported 3 incidents in the last 90 days, 1 of them major or critical. See Upstash's uptime and incident history