Scaling AWS With Scalr

Tales of a Bootstrapped Startup Onista, Inc

What is Onista?
Real-time price negotiation
Qualified sales leads and zero upfront cost
Leverage power of social network
Amalgam of eBay, LendingTree, Priceline, Alibaba and LinkedIn

The Beginning
Custom PHP development
Huge Product Requirements Document (PRD)
Wire frames
Outsourced development

Classic Pitfalls
Wire frames used as templates
No Architecture
No Logging
No Monitoring support
No Alerting support
No Reporting support
No Database Abstraction Layer
SQL embedded in the code

There's Gotta be a Better Way!
Discover MVC
Smarty templating engine
Refactor application logic
Refactor business logic
Retrofit with Logging, Reporting and Alerting
Optimize the database
Improve security

The Birth Database Webserver Appserver Data

Problem
Not Scalable
Will roll over and die
Can't cope with spikes

Enter the Cloud

Discover AWS
S3
EC2
SimplePay

AWS Promise
Infinitely Scalable Instances
Infinitely Large Storage
Stop thinking about capacity
Is it really?

AWS Reality
Infinitely Scalable Instances
start unlimited instances
Infinitely Large Storage
code architecture needs to change
Stop worrying about capacity
start worrying about manual labor
Throw your default assumptions away
No persistent file system

What is Scaling?
The ability of a web system to respond to unexpected load without a denial of service
Two Kinds
Manual Scaling
Auto Scaling

Scalr
Auto-Scaling
Self-Curing
Configuring
Monitoring
Open Source !
Free as in beer!

Scalr http://scalr.googlecode.com/files/network_diagram_smaller.gif

How does it work? http://scalr.googlecode.com/files/processes.png

Trails with Scalr
Documentation
Great User Guide
No Admin/Install guide :(
Trial and Error
Needs experience with DNS server setup
Setup MySQL Master/Slave
Test different scenarios

Moment of Truth
Self host Scalr
One instance for itself
DNS Server
Use Scalr.net
Use CloudInCode

Recommended Setup CloudInCode

Onista Setup CloudInCode Onista

Summary
Scaling is hard
Scalr makes it easy
Don't manage Scalr yourself
Use CloudInCode
Software architecture is the important

Scaling AWS With Scalr

by Ram Viswanadha on Nov 08, 2009

Accessibility

Categories

Upload Details

Usage Rights

2 Embeds 16

Statistics

Scaling AWS With Scalr Presentation Transcript

http://www.slideshare.net	12
http://dominiquelacan.blogspot.com	4