Name: Understanding and Managing Cassandra's Vnodes + Under the Hood: Acunu Analytics
Start: 2013-10-23T18:30:00-07:00
End: 2013-10-23T20:30:00-07:00
Location: Disqus

This month we're happy to invite Tim Moreton (https://twitter.com/timmoreton), Founder and CTO at Acunu Analytics (http://www.acunu.com), and Nicolas Favre-Felix (https://twitter.com/yowgi), Software Engineer at Acunu Analytics, to share with the group.

At This Meetup You Will Learn:

• The concept, implementation and benefits of virtual nodes in Apache Cassandra 1.2 & 2.0

• Why virtual nodes are a replacement to token management

• How to use Acunu Analytics to collect event data, build OLAP-style cubes and ask SQL-like queries via a RESTful API, on top of Cassandra.

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In addition to the talks there will be, as usual, plenty of opportunity to have your Cassandra questions answered, meet other Cassandra users and enjoy discussions around NoSQL.

A special thanks to Disqus (http://www.disqus.com) for hosting our monthly Cassandra meetup events, providing venue, food and beer for our group.

We hope to see you there!

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Understanding and (Not) Managing Virtual Nodes in Cassandra

Virtual nodes were added to Cassandra in version 1.2 and are now the default distribution model for the newly released Cassandra 2.0. This talk will explain the concept and implementation of virtual nodes in Cassandra, and the numerous benefits it brings. We will show you how virtual nodes make token management a thing of the past, improves the failure characteristics, improves bootstrapping and decommission speed, make incremental cluster growing and shrinking possible, and much more.

Under the Hood of Acunu Analytics

Cassandra is a great fit for building real-time analytics applications -- but getting from atomic increments to live dashboards and streaming queries is quite a stretch. In this talk, we'll talk about how and why we built Acunu Analytics, which allows you to collect event data, build OLAP-style cubes, and ask SQL-like queries via a RESTful API on top of Cassandra. We'll dive into how it works and show how it follows Cassandra's spirit of denormalization under the hood.

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