DataStax Developer Blog

Welcome to the DataStax Developer Blog. Here’s where you can find the latest insights and technical articles from top experts and fellow peers on development aspects of DataStax Enterprise and its components, including Apache Cassandra, Apache Hadoop, Apache Solr and DataStax OpsCenter.

For ongoing discussions about our company and general perspectives about DataStax products, please visit our company blog.

Looking for Cassandra Community insights? Visit the Cassandra blog on Planet Cassandra.

Webinar: Streaming Big Data with Spark, Spark Streaming, Kafka, Cassandra and Akka

By Helena Edelson - January 21, 2015 | Comments Off

On Tuesday, January 13 Helena Edelson gave a webinar on Apache Spark, Spark Streaming and Cassandra. This is a follow-up post to that webinar, answering everyone’s questions. In the talk she introduced Spark, Spark Streaming and Cassandra with Kafka and Akka and discussed wh​​​​y these particular technologies are a great fit for lambda architecture due to some key features and strategies they all have in common. We walked through an introduction to implementing each, then showed how to integrate them into one clean streaming data platform for real-time delivery of meaning at high velocity. All this in a highly distributed, asynchronous, parallel, fault-tolerant system.

ALLOW FILTERING explained

By Benjamin Lerer - December 15, 2014 | 0 Comments

While discussing with people at the London C* Summit, I realized that it was not always clear for them why Cassandra requires ALLOW FILTERING for some CQL queries and not for some others.