March 11, 2019
This is our second installment of our Big Data Interview Questions and Answers webinar. Click for the first one. It’s always fun to host one of these […]
March 8, 2019
Students have been asking us for an end to end real wold project that uses Spark and we delivered a new chapter to Spark Developer In Real […]
February 25, 2019
When we interview Spark developers to fill positions at our client site, we often ask our candidates to explain the difference between SparkSession, SparkContext, SQLContext and […]
May 4, 2018
We are happy and excited to announce, today we are launching a Slack workspace for Hadoop In Real World community. The purpose of the Slack workspace […]
March 12, 2018
We almost get about 2-3 emails every day asking when we are planning to release Spark Developer In Real World course. This morning we went going […]
January 24, 2018
In this post we are going to learn about 2 different types of Hive tables and the significance of each. There are 2 types of tables […]
November 15, 2017
We hosted a webinar on November 11th 2017 answering several Hadoop or Big Data interview questions that were asked in real interviews. Couple weeks before the […]
November 8, 2017
Our goal for this post is to help you understand how Spark’s execution engine converts logical plan in to a physical plan and how stages and […]
November 1, 2017
We hosted this webinar on Saturday, October 28th 2017. In this webinar we discussed the most common memory related issues with MapReduce jobs and how to […]
October 25, 2017
ZooKeeper is a coordination service for distributed applications. Well, what the heck is that right? Glad you asked. If you are looking to understand what is […]
October 18, 2017
We hosted a webinar Saturday, October 14th 2017 and we answered some great questions that was posted by Hadoop In Real World community and also from […]
October 11, 2017
We see time and time again, folks who are trying to understand RDD, ask questions about RDD online in websites like stackoverflow or other tech. forums […]
October 4, 2017
We hosted a webinar Saturday, September 30th 2017 and the topic that was covered was RCFile vs. ORC. We had over 60 participants in the webinar. […]
September 27, 2017
This is one of the most widely requested post from our community. We have seen over and over again in other courses where they would start […]
September 20, 2017
Apache Ambari is an open source project and its main purpose is to install or deploy, manage and monitor Hadoop clusters. In this post we will […]
September 13, 2017
When you first heard about Spark, you probably did a quick google search to find out that Apache Spark runs programs up to 100 times faster […]
March 2, 2017
Dissecting MapReduce Program (Part 2) In the last post we went over the driver program of a MapReduce program in detail. We will also see InputFormat, OutputFormat […]
February 27, 2017
Dissecting MapReduce Program (Part 1) From the previous post, we now we have a very good idea about the phases involved in MapReduce. We have a […]
February 23, 2017
Dissecting MapReduce Components In the last post we looked at different Phases of MapReduce. In this post we will take a real example and walk through […]
February 20, 2017
Introduction to MapReduce By now you are quite familiar with HDFS, if you are not to back to the beginning of this tutorial and follow links […]
