The document discusses how cloud computing and virtualization are changing assumptions about application deployment and infrastructure management. It provides examples of how companies like Amazon are offering cloud services like EC2 and S3 for flexible, on-demand computing resources and storage. New distributed computing paradigms like MapReduce are also discussed as better fits for large datasets than traditional databases on single servers. The challenges of managing applications and infrastructure in these dynamic, large-scale environments are also summarized.

1. Steve Loughran Julio Guijarro HP Laboratories, Bristol, UK November 2008 Farms, Fabrics and Clouds [email_address] [email_address]

5. Who had breakfast this morning? Question

6. Who harvested wheat or corn, or killed an animal for that breakfast? Question

7. Farms provide food. It is somebody else's problem

8. Who is wearing clothes they wove or knitted themselves? Question

9. Provisioning of clothing -fabrics- is outsourced It is somebody else's problem

11. Old world installation: single server Single web server, Single DB RAID filestore -SPOF -limitations of scale

12. yesterday: clustering Multiple web servers, Replicated DB RAID Network filestore Load-balancing router -Cost -Complexity -Limitations of scale Maintains the illusion of a single server

13. Now: server farms 500 web servers, Distributed filestore Rented storage & CPU Scales up No capital outlay Agile infrastructure

14. Tomorrow? grid fabric. 50000 servers

15. Application architectures and deployment problems change radically in this world

16. Application architectures September 2008

18. Virtualization

21. Server Farms http://www.linuxjournal.com/

25. Host Amazon EC2 S3 Storage AMI (Xen VM)‏ AMI (Xen VM)‏ /mnt Host AMI (Xen VM)‏ AMI (Xen VM)‏ Public Internet /mnt /mnt /mnt Fast (free) network free access; slow initial read time pay per GET; per megabyte $ $ $ $ $

26. Demo

30. MapReduce Commodity data processing for commodity data

32. Shards

34. XMPP post extends GoogleChatClientWorkflow { to "smartfrog.two@gmail.com"; login "smartfrog.two"; password xmpp.password; message "hello, world"; }