unable to initialize frontend: Dialog

These errors don’t stop the image from being built but inform you that the installation process tried to open a dialog box, but was unable to. Generally, these errors are safe to ignore. Some people circumvent these errors by changing the DEBIAN_FRONTEND environment variable inside the Dockerfile using: ENV DEBIAN_FRONTEND=noninteractive This prevents the installer from opening dialog… Continue reading unable to initialize frontend: Dialog

How do containers compare to virtual machines?

They are complementary. VMs are best used to allocate chunks of hardware resources. Containers operate at the process level, which makes them very lightweight and perfect as a unit of software delivery.

Apache Tajo™: A big data warehouse system on Hadoop

Dubbed an “SQL-on-Hadoop” solution, Apache Tajo is used for low-latency and scalable ad-hoc queries, online aggregation, and ETL (extract-transform-load process) on large data sets stored on HDFS (Hadoop Distributed File System) and other data sources. By supporting SQL standards and leveraging advanced database techniques, Tajo allows direct control of distributed execution and data flow across… Continue reading Apache Tajo™: A big data warehouse system on Hadoop

D3.js for visualisation with big data

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation.

Kylin Extreme OLAP Engine for Big Data

Kylin is an open source Distributed Analytics Engine from eBay Inc. that provides SQL interface and multi-dimensional analysis (OLAP) on Hadoop supporting extremely large datasets. http://www.kylin.io/

3 data science books you can read for free

Data Visualization with Javascript If you are looking for a tutorial to teach you how to make wonderful visualizations on the web, look no further. Data Visualization with JavaScriptis a free online book for learning data visualization with Javascript. It provides tons of examples and step by step instructions for how to create the graphs,… Continue reading 3 data science books you can read for free