GAE Managed Virtual Machine Always Unhealthy Reboot

Question

We are using a managed virtual machine instance in Google App Engine. Until today, everything went well and works, but in the last 12 hours or so, health checks ALWAYS fail, which starts a new VM restart every 10 minutes or so. It should be noted that the image is the same, for example. no changes have been made to portray dockers from three days ago to the present.

Any solution? The health check module is not explicitly processed. The GAE Admin console shows that the last health check returns 502 instead of 200.

This is very bad, because after each restart, the IP address also changes, the logs break with errors with operational errors, and the instance is ultimately unusable (it works with the MQTT broker, so it should be forever).

Any clues?

Answer 1

We had the same problem. Restarts every 10 minutes. It was launched after SSL activation and automatic redirection to https url.

The solution was to disable https for App Engine Reserved URLs: / _ ah / *. It works in the Java 8 runtime.