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Welcome to Apache Cassandra Summit Europe 2013. Join us and hundreds of your database peers, and take a deep dive into Apache Cassandra, the massively scalable NoSQL database that powers global businesses like Netflix, Adobe, Thomson Reuters and eBay.

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Thursday, October 17 • 11:45am - 12:25pm
Top-K Queries in Realtime with Cassandra and Intravert

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Performing ranking queries to find the most relevant documents, most popular urls, etc on huge datasets is trivial —if you're willing to wait a while for the answers. For those with less time to waste, this session describes techniques for performing such queries efficiently. We'll describe the ranking queries problem, outline the Cassandra CQL3 data structures and code that can be used to solve it and describe the trade-offs available. We describe intravert, an innovative server-side programming solution for Cassandra, and show how it can be used to reduce network usage and improve performance by filtering data closer to source.


Jonathan Halliday

Core Developer, JBoss
Jonathan Halliday is a core developer at JBoss, where he builds open source solutions for big-data analytics.

Rui Vieira

Postgrad Student, Newcastle University
Rui Vieira is a postgraduate student at Newcastle University, researching the adaptation of statistical algorithms to modern nosql execution environments.

Thursday October 17, 2013 11:45am - 12:25pm
Frobisher 2 & 3 Barbican Centre, Silk Street, London EC2Y 8DS, UK