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Updated 22-08-2019: Updated the blog to use the latest version of Apache Druid and Superset In today’s world you want to learn from your customers as quickly as possible. This blog gives an introduction to setting up streaming analytics using open source technologies. We’ll use Divolte and Apache {Kafka, Superset, Druid} to set up a system that allows you to get a deeper understanding of the behav
Apache Hive is a data warehouse system built on top of Hadoop. Using SQL-like language you can query data stored in the Hadoop filesystem (HDFS). Those queries are then translated into Map Reduce jobs and executed on your cluster. As an example we’ll analyze tweets from the Twitter Streaming logs and calculate the top 5 hashtags per day which are associated with positive sentiment signals (smileys
Last time I explained why I think doing TDD for mobile is imperative, and why I do it. But now it’s time to get technical, and explain to you how to set up, GHUnit in XCode 4 and run unit tests, not only in the iPhone and iPad simulator but also on your own physical device!, it’s in text and images but also in video form on YouTube. Note, if you want to know why i chose GHUnit over OCUnit, just sc
Cloud | Data | Data & AI | Data Engineering | FinOps | Technology
In this blog I will show how to create a simple Master-Detail screen in Flex, how to back it up by an application is Grails and how to publish changes via JMS to all Flash clients. Important topics will be binding and remote java-object invocation in Flex and configuring JMS. A Master-Detail view is a view with a master list, showing a collection of items and a detailed view, most often consisting
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