Webscale For The Rest of Us

You’ve got ninety-nine problems, but needing a highly available distributed key value store ain’t one

Hi, I’m @johnbarton

I co-founded this thing right herewhich will show up on nearly every slide

I hear that brand awareness is important

Webscale For The Rest of Us

TL; DL: Did you see all that awesome shit that Braintree built? Don’t build that.

Rails is Omakase

Credit: http://www.flickr.com/photos/avlxyz/4759859329/

A Danish word for “My bat, my ball, my rules...”

Credit: http://www.flickr.com/photos/rooreynolds/243810229/

Credit: http://www.themoviedb.org/movie/80767-jiro-dreams-of-sushi/backdrops

Let’s Define Terms

Scaling is doing more of whatever makes you money with some money left over

The Menu

MVC, Migrations, Asset pipeline, TDD, Coffeescript, Bundler, etc

The Wine List

2+ Developers, doing “DevOps”on a vanilla rails stack, to 2+ load balanced web servers, in front of

a master/slave SQL setup

Rails without DevOps makes no sense at all

1970 1980 1990 2000 2010

Developer Salaries RAM Prices

Source: My overactive imagination (2013)

Single Responsibility Principle

A class should have one and only one reason to change

Single Responsibility Principle

A class server should have one and only one reason to change

... or fail, or bottleneck

Y.A.G.N.I.

Credit: http://www.themoviedb.org/movie/8195-ronin/backdrops

“Lady, I never walk into a place I don't know how to

walk out of.”

What about CACHING?

This is the big “it depends”

MongoDB is the Ed Hardy t-shirt

of DatastoresCredit: http://www.flickr.com/photos/leumund/3800973404/

Stick with SQL for your datastore

Please Note: I did not say “Postgres Rulez” or “OMFG MySql”

If you can’t afford two, you can’t afford one

App servers, Database servers, Developers

There are only three numbers to know

Zero, One, and Many

#emumarchJohn Allspaw

Head of Ops for Etsy

1 Blog post per week on something opsy

A Concrete Example

Comparing the two Goodfilms product stacks...assuming I have not rambled too long

Fin

http://goodfil.ms @johnbarton http://whoisjohnbarton.com/