May 2012 DJUG Meeting

Wed May 9, join us for presentations on Client-side Cassandra and Scala Apps in the Cloud

Please RSVP for the meeting here, so we know how much food to provide!

Location: FullContact Offices
1621 18th Street
Suite 40
Denver, CO 80202

 Food, Soda and Networking.
We are grateful to Tek-Systems for their continued sponsorship of the 
Food and Soda for our pre-presentation networking!


BASIC CONCEPTS: The Genealogy of Troy (Client-side Cassandra) by Joe McTee

Cassandra stands out amongst the big data products in its ability to handle optimized writes of large amounts of data while providing configurable fault tolerance and data integrity. Two popular libraries that allow the JVM developer to leverage these capabilities are Hector and the recently open sourced Astyanax. In this talk, Joe will present examples of storing time series data in a Cassandra data store using both of these libraries. There will be code! As an added bonus, a mechanism to unit test using an embedded Cassandra client will be presented.

About Joe McTee:
Joe is a Principal Engineer at Tendril, developing products that bring consumers, utilities, and consumer product manufacturers together in a partnership to save energy while maintaining quality lifestyle. In his 4 years at Tendril, he has worked on load control algorithms, smart outlets, smart thermostats, and is currently working on consumer focused energy reports that can be delivered both electronically and via paper. He is passionate about energy conservation. Ask him about solar energy if you have an hour! In his spare time, Joe is the current Boulder JUG coordinator.


MAIN PRESENTATION: Running Java, Play! and Scala Apps in the Cloud by James Ward

Heroku is a Polyglot Cloud Application Platform that makes it easy to deploy Java, Play! and Scala apps on the cloud. Deployment is as simple as doing a “git push”. This session will teach you how to deploy and scale Java, Play! and Scala apps on Heroku.

About James Ward:
James Ward ( is a Principal Developer Evangelist at Heroku. Today he focuses on teaching developers how to deploy Java, Play! and Scala apps to the cloud. James frequently presents at conferences around the world such as JavaOne, Devoxx, and many other Java get-togethers. Along with Bruce Eckel, James co-authored First Steps in Flex. He has also published numerous screencasts, blogs, and technical articles. Starting with Pascal and Assembly in the 80′s, James found his passion for writing code. Beginning in the 90′s he began doing web development with HTML, Perl/CGI, then Java. After building a Flex and Java based customer service portal in 2004 for Pillar Data Systems he became a Technical Evangelist for Flex at Adobe. You can find him tweeting as@_JamesWard, answering questions on and posting code

*** AGENDA ***
5:30 – 6:00 p.m. Food, and Networking.
6:00 – 7:00 p.m. Basic Concepts/First Session
7:15 – 7:30 pm Announcements – companies hiring, job seekers
7:30 – 8:45 p.m. Main/Featured Presentation
8:45 p.m. – Door prizes
9:15 pm – after meeting networking at Ice House Tavern(1801 Wynkoop St.). A Very special thanks to ReadyTalk for their sponsorship of food at our after meeting!

**PARKING: ** There is a public parking garage(entrance on 19th St & 18th St) next to the building. There’s also an open (paid) parking lot on the corner of Wazee & 19th Street(entrance on Wazee).

 Here’s some directional help:

Coming from the South:
go North on I25 and take exit 212C for 20th St.
Right onto 20th St.
Right onto Wazee St.
2nd Right onto 18th St. (1 way street)
destination on Right Hand Side

Coming from the North:
go South on I25 and take exit 213 for Park Ave.
Merge onto Fox St./Park Ave W
continue onto 22nd St
Right onto Blake St.
3rd Right onto 18th St. (1 way street)
destination on Right Hand Side

If you find yourself on Speer Blvd…
Coming from Cherry Creek
Take a Right at Market St.
Left onto 18th St.(1 way street)
destination on Right Hand Side

Coming from Highlands:
Take a Left at Wewatta St
Right onto 15th St.
Left onto 18th St.(1 way street)
destination on Right Hand Side

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