Introduction to Google App Engine
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Google App Engine - Platform for Cloud Computing .Presented on Aug 23,2008 at HYSEA Conference on Cloud Computing held at Google Hyderabad
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Introduction to Google App Engine
- 1. App Engine Google's Cloud Computing Platform Rajdeep Dua Anirudh Dewani Google Developer Relations
- 4. source : Merrill Lynch IDC Saas Report, May 2008
- 7. App Engine Application Lifecycle
- 8. Development Cycle App Engine SDK App Engine Admin Console
- 9. App Engine Physical Deployment Diagram Node 1 Node 2 Node 3 Node N Google Cluster1 Node 1 Node 2 Node 3 Node N Google Cluster N Node 1 Node 2 Node 3 Node N Datastore Cluster1 Node 1 Node 2 Node 3 Node N Datastore Cluster M Python web server Persistent Layer HTTP Request HTTP Response
- 11. Developing Application with AppEngine
- 12. Application Configuration - app.yaml application: helloworld version: 1 runtime: python api_version: 1 handlers: - url: /.* script: helloworld.py yaml (yet another markup language) - Deployment Descriptor for the Application Maps URLs to the handlers
- 13. Runtime Components of an Application deployed on App Engine URL Python Handlers /*.html HtmlHandler /*.form FormHandler app.yaml (deployment descriptor) WebApp Framework (Google’s Web framework) Django Framework (Third Party) WebOb Framework (Third Party) Mail APIs Users APIs MemCache API Data Store APIs Python Runtime
- 14. Request Handler - helloworld.py
- 16. DataStore - Runtime components
- 17. App Engine DataStore Entity from db.Model Persisting An Entity
- 18. GQL GQL
- 19. Realization - App Engine Request
- 21. APIs
- 22. Secure Sandbox
- 23. Quotas & Road map
- 24. Quota Apps per developer 3 Storage per App 500 MB Files per App 1000 Size per file 1MB Emails per Day 2000 Bandwidth In per Day 10,000 MB Bandwidth Out per Day 10,000 MB CPU Megacycles per Day 200 Million HTTP Requests per Day 650,000 Datastore API Calls per Day 2.5 Million URLFetch API Calls per Day 160,000 $0.10 - $0.12 per CPU core-hour $0.15 - $0.18 per GB-month of storage $0.11 - $0.13 per GB outgoingbandwidth $0.09 - $0.11 per GB incoming bandwidth Expected Pricing Daily Free Quota Fixed Quota