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Top Amazing facts about Big Data Hadoop

On October 3, 2017, Posted by , In Big Data,Hadoop, With No Comments

I am sure most of the students have heard the name Big Data Hadoop but don’t know what exactly it is. No worries. It does sound like some sci-fi term having a heavy weight. Here we are going to know about what is Big Data Hadoop and its amazing features….

Scenario Based Hadoop Interview Questions and answers

On October 1, 2017, Posted by , In Hadoop,Hadoop Interview Questions, With No Comments

Scenario-Based Hadoop Interview Questions and Answers for Experienced 1) If 8TB is the available disk space per node (10 disks with 1 TB, 2 disk for operating system etc. were excluded.). Assuming initial data size is 600 TB. How will you estimate the number of data nodes (n)? Estimating the…

How to change my career as Hadoop Developer?

On January 8, 2017, Posted by , In Big Data,Hadoop, By ,,, , With No Comments

Having worked your way up in the IT totem pole in the same job role, you have decided this is the best to find new horizons, new environment and a new gig in the big data domain. Starting a new career is exciting but it is not easy as lot…

What is Hive ODBC Driver?

On October 8, 2016, Posted by , In Big Data,Hadoop, By , With No Comments

Hortonworks provides a Hive ODBC driver that enables you to access data stored in the Hadoop. The Hive ODBC driver can be used by popular Business Intelligence (BI) tools to query, analyze and visualize data stored within the Hortonworks Data Platform. In the next chapter we will learn how to…

How to Comparison of Pig, Hive and MapReduce?

On October 8, 2016, Posted by , In Hadoop Interview Questions, By ,, , With No Comments

Writing MapReduce programs require Java skills and you need to write so many lines of plain JAVA code. Pig Latin and Hive SQL sits on one layer up of Hadoop ecosystem and provides high level language for using Hadoop’s MapReduce library. With Pig Latin and Hive SQL you can write…

What is Hadoop Distributed File System (HDFS) ?

On October 8, 2016, Posted by , In Big Data,Hadoop, By , With No Comments

Hadoop Distributed File System (HDFS) is a distributed file system designed to hold very large volume of data (terabytes, petabytes). Conceptually, HDFS is a block-structured file system where Individual files are broken into blocks of a fixed size. These blocks are stored across a cluster of one or more machines…

What is Apache HBase?

On October 8, 2016, Posted by , In Big Data,Hadoop, By , With No Comments

Welcome to Apache HBase™ Apache HBase™ is the Hadoop database, a distributed, scalable, big data store. Use Apache HBase™ when you need random, realtime read/write access to your Big Data. This project’s goal is the hosting of very large tables — billions of rows X millions of columns — atop…

Difference between Pig and Hive-The Two Key Components of Hadoop Ecosystem?

Pig and Hive are the two key components of the Hadoop ecosystem. What does pig hadoop or hive hadoop solve? Pig hadoop and Hive hadoop have a similar goal- they are tools that ease the complexity of writing complex java MapReduce programs. However, when to use Pig Latin and when…