Kostiantyn's blog

Several months ago I developed Chrome browser plugin for my own needs. As a Hadoop engineer I faced with one problem everyday. I run a lot o...

Perhaps, Hive is the most successful component of today's Hadoop infrastructure. It provides simple and efficient way of creating Hadoop...

There is my first experience with Apache Spark, running it on Hadoop . I faced in several issues during running my piece of code. To be ho...

Java is mother language for the most of Hadoop engineers. In recent years, Python became popular, R is used by data scientist on Hadoop. Pig...

Without a doubt, there is avery common situation when UnitTest (or IntegrationTest) is required to test functionality of MapReduce job. This...

Abalone dataset is freely available at UCI Machine Learning Repository since 1995. It contains result of abalone research in Australia. Pred...

Short instruction how to query Hive from R via JDBC. First of all install rJava: sudo apt-get install r-cran-rjava After that install RJD...