Fwd: [play-framework] [1.2.4][siena-2.0.7][gae-1.6.0] play gae:deploy doesn't seem to send info on backends.xml to AppSpot

[Pascal Voitot Dev]

forwarding to siena list...
Anyone tried using backend.xml with Play+GAE?

Thanks
Pascal

---------- Forwarded message ----------
From: jesusvp <jesus.vi...@overlaymedia.com>
Date: Mon, May 21, 2012 at 6:45 PM
Subject: [play-framework] [1.2.4][siena-2.0.7][gae-1.6.0] play gae:deploy doesn't seem to send info on backends.xml to AppSpot
To: play-fr...@googlegroups.com


Hello!

I'm trying to use backends on GAE but I've got the impression that I'm missing something. I created a backends.xml file in war/WEB-INF (at the same level as appengine-web.xml) with the following content:

<?xml version="1.0" encoding="UTF-8"?>

<backends>

  <backend name="backup">

    <class>B1</class>

    <instances>1</instances>

  </backend>

</backends>

When I deploy the app with play gae:deploy I can see on the console that it is parsed:

INFO: Successfully processed /var/folders/6q/7kj374f17vj_f2vhb0dcthq80000gp/T/(nameofapp).war/WEB-INF/backends.xml

Beginning server interaction for (nameofapp)...

However, when I go to my app's backends administration page I only see a message explaining that I have not created backends for my application and that I need to define them using backends.xml for Java.

Has anybody used backends or been able to configure them on GAE?

Thank you for your help.

Jesús

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[Emanuele Ziglioli]

no, I don't really understand what backends is for. It is to implement
websockets?

On May 22, 9:59 am, Pascal Voitot Dev <pascal.voitot....@gmail.com>
wrote:

[Pascal Voitot Dev]

According to the doc: (actually this is something like a more "persistent" instance and I can imagine the price is more persistent also :) )

Backends (Java)

This reference describes how to use App Engine Backends in Java. Backends are special App Engine instances that have no request deadlines, higher memory and CPU limits, and persistent state across requests. They are started automatically by App Engine and can run continously for long periods. Each backend instance has a unique URL to use for requests, and you can load-balance requests across multiple instances.

Backends can handle HTTP requests from users or other parts of your application, start and run continuously in the background, or be driven by Task Queue tasks or Cron jobs. The following sections describe how to configure backends, best practices for using them, and how App Engine bills for them.

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[Developers di Paola]

I made it work by running

appcfg backends "pathtomyplayproject\war" update

i had to add a web.xml and backends.xml (attached to this post)

Regards!