Every once in a while GAE responds with 502 error

[Elena DevAccount]

I have GAE Flexible release and every once in a while it keeps giving a 502 error with the message

The server encountered a temporary error and could not complete your request.
                Please try again in 30 seconds.

I cannot find any errors related to this in Stackdriver Logs though. 
I don't know if this is related to resource usage or something else. No ideas how to debug further. 

Any ideas appreciated!

[Binh Bui Van]

I have same problem last week.

In my case, some users from Viet Nam cannot access. But other country can access normal.

I have reported this problem to google team, but still not got answer.

But now, the problem has been resolved automatic:(. I don't understand why?

Vào 09:16:33 UTC+7 Thứ Ba, ngày 11 tháng 9 năm 2018, Elena DevAccount đã viết:

[Katayoon (Cloud Platform Support)]

I should note that we have received some reports from asia-south1 and asia-northeast1 regions as reported via Issue#113859892 which seems to be resolved. However, in your case (Elena’s), it seems that your application ran out of memory. You can check it via your App Engine Dashboard by choosing “Memory Usage” through the dropdown menu.

If the issue still persists, I recommend to report it via the Issue Tracker so that we would be able to dig into the issue.

[Elena DevAccount]

Hi and thanks for your reply!
I cannot find the Memory usage in the dropdown menu though. Could you please point me to some link or instructions? 

Thanks!

[Amit (Google Cloud Support)]

Hi

To navigate to the ‘Memory Usage’ graph in the App Engine dashboard, you first need to click on the hamburger icon on the top left corner of the Cloud Console. Then, click ‘App Engine’ under the ‘Compute’ section and select 'Dashboard'. Select version from the dropdown menu and then select ‘Memory Usage’ from another dropdown menu just under the ‘Version’ dropdown menu. I hope this helps you to find the ‘Memory Usage’ graph in the App Engine dashboard.