1.
Scaling Azure apps
JORGE GAONA

2.
What is scalability?
Computer applications have well defined capacity limits. A system might properly handle a few
thousand user requests, but when numbers go way up to tens or hundreds of thousands, it may
not behave correctly – or not work at all.
Scalability = Ability to manage increased workload properly, given certain capacity limits.

3.
Vertical / Scale up
Popeye: http://northlondonchurch.org/userfiles/image/adoptionism-popeye-spinach.png
Increase overall application capacity by adding resources to existing nodes.

4.
Horizontal / Scale out
Gremlins: http://www.wolfgnards.com/media/blogs/photos/miscellaneous/mogwai-water.jpg
Increase overall application capacity by adding nodes.

5.
Minions: http://www.disney.com

6.
Example
Highway: shutterstock.com

7.
Side to side
SCALE UP
• Simple App Design
• No Load Balance required
• Limited
• Single Point of Failure remains
• No latency improvements
• Complex Disaster Recovery strategy
• Manual
SCALE OUT
• Can be closer to the end user
• Easier Disaster Recovery Strategies
• Possibly need of a Load Balance strategy
• Possible unlimited
• App must be multi-instance safe
• Can be automatic

8.
Windows Azure

9.
Scale up
Select the price tier accordingly

10.
Scale out
Manually, scheduled or by metric

11.
Demo

12.
ASP.NET
MVC
Instance 1
Instance 2
…
Queue
WebJob

13.
Thank you 