I am in the process of migrating an Appengine Java application from Backends to modules / services. One thing that we currently use our backend for is uploads of data that take longer than the 60 second request duration limit. So far, I have been unable to find a way to configure services to accept requests longer than 60 seconds without returning a CancellationException. Surely Appengine did not drop support for longer requests with the conversion to services? How can they be configured?
please have a look at the following link
https://cloud.google.com/appengine/docs/standard/java/an-overview-of-app-engine
you need to configure your module as manual or basic scaling