nginx proxy_error ai_generated true

502 Bad Gateway

ID: nginx/502-bad-gateway

Also available as: JSON · Markdown
80%Fix Rate
85%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Upstream server not responding or crashed.

generic

Workarounds

  1. 90% success Check upstream server process is running and healthy
  2. 88% success Verify proxy_pass URL and port match upstream config

Dead Ends

Common approaches that don't work:

  1. Increase proxy_read_timeout to hours 78% fail

    Clients wait indefinitely

  2. Remove upstream health checks 85% fail

    Routes traffic to dead backends