Changing port for Google App Engine while using grails

The context

I am using Google App Engine using the  Grails AppEngine plugin . The default port is 8080, but I needed to run it on a different port.

It was easy to figure out that Google App Engine supports running the development server on any configured port. But it took me some time to realize that [...]

Error: Appengine is already registered

The context:

I am using Google App Engine along with Grails AppEngine plugin. At some point I started getting an exception when I was trying to start my development server. The only thing I had done before I got the error was- I had switched from App Engine SDK  1.2.5 to 1.2.8.

The solution

The problem is that [...]

Grails and OpenId

Do your users a favor . Use OpenId in your website, rather than having them to create yet another user account.

I haven’t ready any statistics around this, but if I am the so called average user - I guess, I am 75% less likely to register for your website , even if that comes at [...]