nginx timeout_error ai_generated true

upstream timed out (110: Connection timed out)

ID: nginx/upstream-timed-out

Also available as: JSON · Markdown
78%Fix Rate
83%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Upstream failed to respond within proxy_read_timeout.

generic

Workarounds

  1. 88% success Tune proxy_connect_timeout, proxy_send_timeout, proxy_read_timeout per location
  2. 85% success Add upstream health checks with max_fails and fail_timeout

Dead Ends

Common approaches that don't work:

  1. Set proxy_connect_timeout very high 78% fail

    Slow failure detection

  2. Remove upstream from pool on first timeout 72% fail

    Flapping under intermittent issues