Sonra and Hostelworld at Big Data Everywhere

Uli Bethke Big Data, Hadoop, MapR, Supermicro

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 the pictures.

About the author

Uli Bethke LinkedIn Profile

Uli has 18 years’ hands on experience as a consultant, architect, and manager in the data industry. He frequently speaks at conferences. Uli has architected and delivered data warehouses in Europe, North America, and South East Asia. He is a traveler between the worlds of traditional data warehousing and big data technologies.

Uli is a regular contributor to blogs and books, holds an Oracle ACE award, and chairs the the Hadoop User Group Ireland. He is also a co-founder and VP of the Irish chapter of DAMA, a non for profit global data management organization. He has co-founded the Irish Oracle Big Data User Group.

Data Warehousing in the age of Big Data. The end of an era?

Uli Bethke Big Data, Data Warehouse, Hadoop

In this series of blog posts we will explore how the age of Big Data is changing the data warehouse landscape for good. There are a multitude of issues that today's data warehouse implementations face. What are the steps that you as a CIO or Data Warehouse executive can take to implement the next generation of data warehouses. Part II: ...

About the author

Uli Bethke LinkedIn Profile

Uli has 18 years’ hands on experience as a consultant, architect, and manager in the data industry. He frequently speaks at conferences. Uli has architected and delivered data warehouses in Europe, North America, and South East Asia. He is a traveler between the worlds of traditional data warehousing and big data technologies.

Uli is a regular contributor to blogs and books, holds an Oracle ACE award, and chairs the the Hadoop User Group Ireland. He is also a co-founder and VP of the Irish chapter of DAMA, a non for profit global data management organization. He has co-founded the Irish Oracle Big Data User Group.

Multiple Spark Worker Instances on a single Node. Why more of less is more than less.

Uli Bethke Big Data, Hadoop, Spark

If you are running Spark in standalone mode on memory rich nodes it can be beneficial to have multiple worker instances on the same node as a very large heap size has two disadvantages: - Garbage collector pauses can hurt throughput of Spark jobs. - Heap size of >32 GB can't use CompressedOoops. So 35 GB is actually less than ...

About the author

Uli Bethke LinkedIn Profile

Uli has 18 years’ hands on experience as a consultant, architect, and manager in the data industry. He frequently speaks at conferences. Uli has architected and delivered data warehouses in Europe, North America, and South East Asia. He is a traveler between the worlds of traditional data warehousing and big data technologies.

Uli is a regular contributor to blogs and books, holds an Oracle ACE award, and chairs the the Hadoop User Group Ireland. He is also a co-founder and VP of the Irish chapter of DAMA, a non for profit global data management organization. He has co-founded the Irish Oracle Big Data User Group.

In-memory analytics with Tableau, SparkSQL, and MapR

Uli Bethke Big Data, Hadoop, Hive, MapR, Spark, SparkSQL, Tableau

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 Frames as of Spark 1.3). In this tutorial I will show you how to connect to Spark 1.2.1 on the MapR 4.1 sandbox with Tableau 9.0. Pre-requisites: - Download the ...

About the author

Uli Bethke LinkedIn Profile

Uli has 18 years’ hands on experience as a consultant, architect, and manager in the data industry. He frequently speaks at conferences. Uli has architected and delivered data warehouses in Europe, North America, and South East Asia. He is a traveler between the worlds of traditional data warehousing and big data technologies.

Uli is a regular contributor to blogs and books, holds an Oracle ACE award, and chairs the the Hadoop User Group Ireland. He is also a co-founder and VP of the Irish chapter of DAMA, a non for profit global data management organization. He has co-founded the Irish Oracle Big Data User Group.

Big Data Made Easy. The Sonra Hadoop Quick Start Appliance

Uli Bethke Big Data, Hadoop, MapR, Supermicro

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 per TB than traditional solutions but also opens up new revenue streams. However, Big Data can be daunting. Businesses need to acquire expertise in a lot of areas to be ...

About the author

Uli Bethke LinkedIn Profile

Uli has 18 years’ hands on experience as a consultant, architect, and manager in the data industry. He frequently speaks at conferences. Uli has architected and delivered data warehouses in Europe, North America, and South East Asia. He is a traveler between the worlds of traditional data warehousing and big data technologies.

Uli is a regular contributor to blogs and books, holds an Oracle ACE award, and chairs the the Hadoop User Group Ireland. He is also a co-founder and VP of the Irish chapter of DAMA, a non for profit global data management organization. He has co-founded the Irish Oracle Big Data User Group.