Kubernetes Ingress (GCE) keeps returning 502 error

Question

I am trying to setup an Ingress in GCE Kubernetes. But when I visit the IP address and path combination defined in the Ingress, I keep getting the following 502 error:

Answer 1

Log can read from Stackdriver Logging, in my case, it is backend_timeout error. After increase the default timeout (30s) via BackendConfig, it stop returning 502 even under load.

More on: https://cloud.google.com/kubernetes-engine/docs/how-to/configure-backend-service#creating_a_backendconfig