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analytic functions,

Window Functions (aka Analytic Functions) in Spark.

As of Spark 1.4.0 we now have support for window functions (aka analytic functions) in SparkSQL. At Sonra we are heavy users of SparkSQL to handle data transformations for structured…
Uli Bethke July 3, 2015
Big Data,

Sonra and Hostelworld at Big Data Everywhere

We were over in London last week for Big Data Everywhere. Silviu Preoteasa from Hostelworld presented our successful implementation of MapR on Supermicro at Hostelworld. Apologies for the poor quality of…
Uli Bethke June 8, 2015
Big Data,

In-memory analytics with Tableau, SparkSQL, and MapR

Last week Tableau released version 9.0 of their data visualisation tool. From a Big Data point of view the nicest new feature was support for querying cached (in-memory) SchemaRDDs (Data…
Uli Bethke April 16, 2015
Big Data,

Big Data Made Easy. The Sonra Hadoop Quick Start Appliance

Big Data: Huge cost savings and revenue opportunities, but daunting Hadoop is a core component of the modern data platform. It is not only up to 25 times less expensive…
Uli Bethke March 12, 2015
Big Data,

Meet Sonra at CeBIT 2015

We will be presenting the Sonra Hadoop Quick Start Appliance at CeBIT next week in Hanover. Meet and greet us in Hall 2, Stand D52 (C58). At Sonra we understand…
Uli Bethke March 11, 2015
Big Data,

Thumbs up for Hadoop User Group Ireland Meetup!

We got excellent feedback for our first Hadoop User Group Ireland meetup. We wined, dined, entertained, and shared knowledge with more than 100 Hadoopers."Well impressed guys. Well done for getting…
Uli Bethke February 24, 2015