Work Samples
eFollett.com traffic optimization
Welcome to 1999
efollett.com
=
WebShere Application Server 3.0
We built a website! Let's advertise during the Super Bowl!
3 IBM270 WAS servers
Roughly 50,000 unique visitors within 5 minutes of air
.......
WAS baseline of ~20% CPU active, spiked to 80% with just a few user sessions
How do we spread out the load without buying more IBM hardware, WAS licences?
2X Intel load balancers
SSL termination/acceleration
Sticky sessions to app servers
Proprietary Active/Active
2X Dell 1U dual-CPU
Images for every book
Database -> structured URL
(and a few subdirectories so "ls" would go back to working)
"tux" httpd module
images.efollett.com ssl cert
work with the devs!
No more Super Bowl commercials!
But, able to weather start of semesters
Modernize!
Heartland Payment Services
Using Kickstart to provision thin devices into RHEL over the public internet
initrd may be the most arcane thing I've had to deal with
Modernize!
Kohl's
AIX -> Linux migration
Ops staff acquiescent, but not thrilled
AIX package management is stone-age, so let's talk about how Linux does it better
Designed a customized class for the Ops staff, trained them to install, manage, build and customize RPMs
End result, excited Ops staff
All About OpenShift
x.509 certificate management
2... 10... 30... 80!?
Script it!
Monitor it!
Automate it!
Upstream it!
Modernize it!
Paravirt -> HVM migration
Magnetic/standard -> GP2 migration
v2 Compacting
Recurring themes!
- innovate
- automate
- collaborate