Raspberry Pi – WSO2 Style

Raspberry Pie?

Raspberry Pie?

A humble beginning

IMG_20121220_124101.jpg

What the Pi??

WSO2 middleware on Pi??

High level plan

• Run Java on Pi• Run vanilla Carbon kernel on Pi• Run enhanced Carbon kernel on Pi• Use enhanced kernel with WSO2 AppServer• Conduct load tests to get an idea about performance on

Pi• Do something useful using GPIO functionality• Bootup script which will connect any Pi into AS cluster

Supplying Power to a

Raspberry Pi Cluster

Power Supply Schematic

V = IRW = VI

Managing the work area

Rack prototype #1

Rack prototype #2

The final outcome

Setting up the

Network

Network setup

Cluster Management&

Monitoring

Pis everywhere!

Too many instances to manage!

GPIO

The App

• wso2con.com/m• Android• iOS

API Dashboards

wso2con.com/m

Software Optimizations

Carbon kernel & AppServer enhancements

• Run in worker mode without any admin services• Disable unused deployers• Lazy loading deployment artifacts• Cut down bootup time from 5 minutes to 1.5 minutes• Bleeding edge Hazelcast based clustering

implementation

Software• OS

• Raspbian “wheezy”• Linux kernel

• Linux raspberrypi 3.2.27+ #250 PREEMPT Thu Oct 18 19:03:02 BST 2012 armv6l GNU/Linux• JAVA

• Java(TM) SE Embedded Runtime Environment (build 1.7.0_10-b18, headless)• Python

• Python 2.7.3 • python-dev

• GPIO• RPi.GPIO-0.4.1a

• WSO2• AppServer with enhanced Carbon kernel

Other Experiments

LXC on Raspberry Pi

LXC on Raspberry Pi

LXC on Raspberry Pi

No Raspberry Pis were harmed

in this production

But we managed to explode

few capacitors

Questions?

Thank you