HyperDex Warp, Angular JS, Heating Your House via Android

  • February 27, 2013 · 6:30 PM

HyperDex Warp -  Bob Hancock

A light-weight, distributed, sharded data store that supports transactions over multiple keys. It combines the speed and scale advantages of NoSQL systems with the ACID guarantees that you are familiar with from traditional RDBMSs. HyperDex transactions are fully-decentralized and operate on multiple objects.  It uses Google's LevelDB as its backend storage, as well as the Google CityHash and Glog libraries.

The system is distributed, sharded and concurrent, and yet it ensures that the transactions appear to have been applied to the data one after another, atomically, consistently, with isolation, and with a fault-tolerance guarantee.

The YCSB benchmarks show it to be 12x-14x faster than Cassandra for searches and 3x-4x faster for writes.


AngularJS: An Introduction - Nitya Narasimhan
AngularJS is an open-source client-side JavaScript framework developed by Misko Hevery in 2009. It has since been maintained by him at Google and seen internal and external adoption (e.g., Udacity), particularly since the v1.0 stable release in June 2012. AngularJS is the latest technology to target single page applications for mobile web development, enabling dynamic user experiences with minimal round-trip exchanges to the server for improved performance.

In this talk we'll look what the technology does (big features), how it does it (sample directives) and how it compares to similar frameworks. Time permitting, we'll walk through a quick demo of an AngularJS application to put some of these ideas in context.


Heating Your House via Android - Ralph Yozzo
Using Android, Arduino, and Fusion tables you can effectively heat your house.  Android senses when family members are near or in the house, the server processes the data and the Arduino device adjusts the heating appropriately.  All data is loaded into fusion tables to track energy usage.  A crazy intelligent way of combining existing technologies to save money, energy, and help save the environment.

Join or login to comment.

  • Jon E.

    Great meeting. Came for the Angular prezo, but the HyperDex Warp turned out to be quite a bonus. I came up through the relational DBMS world and have been watching the NoSQL key/value stores with interest. Worthy of an update at 6 months as it matures with more API's available.

    February 28, 2013

  • Pedro R.

    Very eye opening. I didn't even know about noSql.

    February 27, 2013

  • Geert D.

    Meet, socialize and network tonight with Robert and many others at the meetup. It is one of the most popular #tech events in NYC today!

    We built an easy-to browse/search page for/with all attendees:

    Happy networking!
    (feedback appreciated!- we're still working on the app;)

    February 27, 2013

  • Aman S.

    Last minute meeting

    February 27, 2013

  • A former member
    A former member


    February 23, 2013

  • paul m.

    paul mooney

    February 22, 2013

  • Aman S.

    Looking Forward to it

    February 21, 2013

  • Andrew L.

    have another meet up the same night... doh!

    February 21, 2013

  • A former member
    A former member

    My first meeting.

    February 20, 2013

  • Roman M.


    February 17, 2013

  • Dulio D.

    Its cold outside and I'm looking forward to heating my house with Android!

    February 17, 2013

  • Robert H.

    Please, read my previous comment.

    February 10, 2013

  • Robert H.

    REMINDER: Check our Google+ Page for ongoing news. Search for "GDG New York" and put it in your circle(s).

    Registration for the meeting will still take place here and will open 10 days prior to the event.

    February 7, 2013

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