I realize this is an old thread, and that the OP may not be tracking this
anymore, but I wanted to help nonetheless.
I'm not sure how to do this in the Java version, but in the python version,
what I ended up doing was creating a "fake" module and deploying this along
with the normal app.yaml/appengine-web.xml.
What I did was:
1) create a file called fake.yaml (or something similar for the Java
version; basically a copy of your appengine-web.xml but renamed to the name
of your new module)
2) paste in the stuff from the top of your XML file, the stuff about
'runtime' and 'threadsafe'
3) within those entries at the top, write in a line that says 'module:
fake' (or something equivalent in XML). I also included a handler entry for
the favicon, just so that there's something that the fake module can route
to.
4) now, back in your appengine-web.xml file, write in the scaling code,
for manual or basic scaling
5) now open a Terminal/Command Prompt window and traverse to your app's
directory
6) run the 'appcfg' command with the word 'update' followed by
'appengine-web.xml' and then the name of the XML file for your fake module.
In the python version, this looks like 'appcfg.py update app.yaml
fake.yaml'
7) enter your email/password, then your application will deploy both
the default module (configured from appengine-web.xml) and the fake module
(configured from fake.xml or whatever the filename is)
This should enable the default module and enable any scaling you set. The
configuration for the fake module doesn't matter, just so long as it
doesn't error out when it updates. Feel free to delete it later.
Of course, if anyone knows of a better way to do this, please reply. After
the research I did on this topic, this was the only method I could find.
On Thursday, July 17, 2014 at 9:09:53 AM UTC-7, Juan de Dios Becerra wrote:
>
> I have developed my app with all default, this imply Automatic scaling,
> lastly some processes are getting longer and I wanted to use Backends, but
> right now are deprecated, so I need to use Modules, reading the Modules
> documentation I realized that modifying the file appengine-web.xml I can
> modify the scaling and in consequence the way that the requests are
> managed. But when I tried to modify this file and make it manual scaling,
> when I deploy to App Engine I don't get errors but I get this warning:
> "WARNING: Performance settings included in this update are being ignored
> because your application is not using the Modules feature"
> after that my app is working but it generates a Backend, so all time since
> my version is deployed is consuming backend instance hours, somebody knows
> how I can modify my actual Automatic scaling app to one app that can use
> Modules?? thank you in advance.
>
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