Google App Engine
Ashish Tonse
ashish.tonse.com

Demo App
• Gi-89 calculator (gi89.appspot.com)
• Built with with Prasad Silva
(prasadsmind.net) in a week including
learning Python/Django)

What is it?
• Sandboxed Python environment
• More languages to follow
• Google’s database BigTable
• Google User Accounts

Modified Python
• Just a few restrictions
• No local filesystem access
• No threads
• Raw sockets (http based one for 80/443)
• No sys calls

BigTable
• Designed to run on multiple nodes
(10,000+)
• Object-based
• GQL - A form of SQL that you can use to
access BigTable data
• Paper available: labs.google.com/papers/bigtable.html