2007 JavaOneSM Conference | Session TS-6039 |

TS-6039

Building a Web Platform: Java™ Technology at NingDiego DovalBrian McCallisterMartin Traverso

Ning, Inc.http://www.ning.com/

2007 JavaOneSM Conference | Session TS-6039 | 2

(nĭng) noun

1. a web platform for creating social networks

Ning Definition

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Freedom

Creativity

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• Individual copies of applications• Customization and control

• All the way down to the source code• Everything is an API• Backwards compatibility• Scale

• … and do it on the cheap. We’re a startup!

Our Platform Requirements

Our Platform Requirements

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Conceptual Design

Conceptual Design

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JIT architecture

Just-In-Time Architecture

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Spin Cycle

Codename: Spin Cycle

Goals• Launch service• Prove the concept• Start evolving the

architecture immediately

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Spin Cycle Architecture

Spin Cycle Architecture

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Lessons for Spin Cycle

Spin Cycle Lessons • One Tomcat can handle a lot!• Monolithic architecture a good start• Planned obsolescence works

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Spin Cycle

Codename: Rebar

Goals• Scale, scale,

scale• Lots of

applications• Granular

scalability

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Rebar Architecture

Rebar Architecture

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Rebar Architecture: A Close Up

Rebar Closeup

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Rebar Lessons

Rebar Lessons • Don’t fear radical change• Components can scale independently• Operations factors into design• Planned obsolescence works!

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Rocky

Codename: Rocky

Goals• Huge applications• Solve large scale

concurrent writes• Maximize

availability

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Rocky Diagram

Rocky Architecture

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Rocky Architecture: A Close Up

Rocky Closeup

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Rocky Lessons Learned

Rocky Lessons • HTTP-based APIs = Good• Embrace the tools you use • Planned obsolescence works!

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Today

Today• Over a dozen Core types• Multiple internal clusters• Hundreds of servers and Solaris™ Zones

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Java, Really

Java Technology Is Good

• Small Team / Huge System• Performance• Stability

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HTTP Is Good

GET / HTTP/1.1Host: javaone.ning.comConnection: close

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Atom API

The Atom API

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Embrace Open Source

Embrace Open Source

• It is Different• Use the Source

• Understand it• Find the bugs• Optimize It

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Managing Geometric Growth

Managing Geometric Growth

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JIT Architecture

Just-In-Time Architecture

… + Java Technology

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Freedom

Creativity

Goals, redux

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Results, redux

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Q&A

2007 JavaOneSM Conference | Session TS-6039 |

TS-6039

Building a Web Platform: Java Technology at NingDiego DovalBrian McCallisterMartin Traverso

Ning, Inc.http://www.ning.com/