1. True story of re-architecting website
for scale on Windows Azure

2. 1,3 billion+ web transactions / day
3 datacenters / 300+ servers

3. Lithuanian-based startup
20K+ unique visitors per month
can go viral any day soon

4. HOSTING
WINDOWS AZURE
Linux | Apache | MySQL |
PHP
Linux | Nginx | FTP
website, blog
static content
database
photos

5. 20K+
~260K page views / month
~9K page views / day
~1K page views / hour
~0,2 page views / second
but spikes up-to
50 page views /
second

6. Cloud gives more flexibility and scalability options
Windows Azure is Microsoft’s Cloud Platform
BizSpark gives Windows Azure for free for 1 year
Let’s move!

7. VIRTUAL MACHINE

8. HOSTING
WINDOWS AZURE
Linux | Apache | MySQL |
PHP
Linux | Nginx | FTP
website, blog
static content
database
photos

9. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
Linux | Nginx | FTP
website, blog
static content
database
photos

10. SCALING ISSUE #1
Dedicated VM for storing content is suboptimal in the
cloud
Manual management & scaling
No backups

11. BLOB STORAGE

12. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
Linux | Nginx | FTP
website, blog
static content
database
photos

13. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
HTTP
website, blog
static content
database
photos

14. SCALING ISSUE #2
Static content on the same VM as website and blog
Different scalability targets
Photos are part of static content

15. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
HTTP
website, blog
static content
database
photos

16. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
HTTP
website, blog
database
static content

17. SCALING ISSUE #3
Database on the same VM as website and blog
Very different scalability targets and strategies

18. WINDOWS AZURE
Linux | Apache | MySQL |
PHP
HTTP
website, blog
database
static content

19. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP
database
website, blog
HTTP
static content

20. SCALING ISSUE #4
Blog on the same VM as website
Different scalability targets

21. WEBSITES

22. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP
database
website, blog
HTTP
static content

23. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP IIS | PHP
database
website
blog
HTTP
static content

24. FURTHER SCALING

25. SCALING ISSUE #5
Website gets more requests than can handle

26. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP IIS | PHP
database
website
blog
HTTP
static content

27. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP IIS | PHP
database
website
blog
HTTP
static content

28. SCALING ISSUE #6
Database gets more queries than can handle

29. WINDOWS AZURE
Linux | MySQL Linux | Apache | PHP IIS | PHP
database
website
blog
HTTP
static content

30. WINDOWS AZURE
Linux |
MySQL
Linux |
MySQL
write-only
database
read-only
database
Linux | Apache | PHP IIS | PHP
website
blog
HTTP
static content

31. SCALING ISSUE #7
Read-only database gets more queries than can handle

32. WINDOWS AZURE
Linux |
MySQL
Linux |
MySQL
write-only
database
read-only
database
Linux | Apache | PHP IIS | PHP
website
blog
HTTP
static content

33. WINDOWS AZURE
Linux |
MySQL
Linux |
MySQL
write-only
database
read-only
database
Linux | Apache | PHP IIS | PHP
website
blog
HTTP
static content

34. SCALING ISSUE #8
Write-only database gets more queries than can handle

35. This is a nice issue to have
Split write-only database into shards with multiple read-
only slaves for each shard accessed via layer of
distributed cache

36. DEMO

37. WINDOWS AZURE
SQL Database
IIS | PHP
HTTP
database
blog
static content

38. WINDOWS AZURE
SERVICES

39. WINDOWS AZURE
Windows Azure Virtual Machine for VMs
Windows Azure Blob Storage for static content
Windows Azure Website for hosting web site

40. WINDOWS AZURE
Windows Azure Service Bus for messaging
Windows Azure Cache Service for distributed caching
Windows Azure Notification Hubs for push notification
Windows Azure HDInsight for big data

41. WINDOWS AZURE
COMPUTE
DATA SERVICES
APP SERVICES
NETWORK
Virtual Machines
SQL Database
Media Services
SERVICES
Web Sites
Storage
Service Bus
Mobile Services
HDInsight
Notification Hubs
Cloud Services
Cache
BizTalk Services
Backup
Active Directory
Recovery
Multi-Factor Auth
Virtual Network
Traffic Manager
Manager
Pricing calculator: http://www.windowsazure.com/en-us/pricing/calculator/?scenario=full