quota reached - frontend instance 100% - free user

[David]

First off, I'm totally new to GAE. 3 days ago I did a search on Google
for hosting a website on Google App Engine for free. I found this
tutorial on labnol.org:

http://www.labnol.org/internet/host-website-on-google-app-engine/18801/



I was under the impression that GAE's quota for free users was high.
My site has received very little traffic. At best, the site is getting
50 daily page views, of which most, if not all, are mine. I'm testing
my code on and refreshing my browser.

GAE indicates the following: Frontend Instance Hours - 100% - 28.00 of
28.00 Instance Hours

I made no adjustments to my GAE settings UNTIL this morning. 2 things
changed in the last 12 hours:

1. I changed my frontend instance class from the default f1 to f4. My
reason for doing so was to see if it would improve my site's loading
time (it didn't). My site is a fairly small and simple site.

2. I replaced the html files and images from the last 2 days with
fresh ones this morning. Doing this resulted in my making some changes
to files and uploading (deploying via GoogleAppEngineLauncher Mac app)
changes probably about 5 times per hour.


On my settings page everything is at 0, with the exception of this
one:

Frontend Instance Hours 100% 28.00 of 28.00 Instance Hours

How did I reach the hosting quota for GAE? Should I adjust any other
settings? What can I do to prevent this from happening in the future?

Additional facts:

- The size of the folder containing all my files is 38kb in size.
- I have Google Analytics, by way of Javascript, running on
index.html (none of the other pages).
- I'm using raw, basic, html.
- my pages consist of approximately 3kb of image data being served per
page.

Thanks

[Simon Knott]

F4 instances use four times the instance hours of F1 instances - essentially, you get 28hrs free of an F1 instance and only 7hrs free of an F4 instance.

Cheers,

Simon