概要
A gateway or proxy did not get a timely response from an upstream server.
いつ発生するか
Returned when the backend is too slow and the proxy gives up waiting.
よくある原因
- Slow upstream / backend response
- Long-running query or request
- Gateway timeout set too low
解決方法
- Increase the gateway timeout
- Optimize the slow endpoint or query
- Check backend performance and load