Big Data Hadoop Tutorial

Top 100 frequently asked & important Hadoop interview questions and answers prepared by experts and practically proven..! To optimize your chances of getting hired, pursue a certification in Hadoop , and prepare ahead of time for those crucial job interview questions.   Look at : Hadoop Topics Free PDF 1. What is Apache Hadoop? Hadoop is an open source software framework for distributed storage and distributed processing of large data sets. Open source means it is freely available and even we can change its source code as per our requirements. Apache Hadoop makes it possible to run applications on the system with thousands of commodity hardware nodes. It’s distributed file system has the provision of rapid data transfer rates among nodes. It also allows the system to continue operating in case of node failure. 2. Main Components of Hadoop? Storage layer – HDFS Batch processing engine – MapReduce Resource Management Layer – YARN HDFS – HDFS (Hadoop D...

Data Storage is one of the crucial needs of any organization. People are looking for easy way to access the data and store it on the voluminous amount. Hadoop is one of the popular options for that, it’s open source software designed for storing data and to run applications. Hadoop is the easy option for those who are looking for massive storage where they can save data, information, and have the ability to do limitless virtual related work without consuming too much time. Here we will see some Amazing Big Data Facts. No doubt why Hadoop is on demand, it’s not bad to say that this storage option has everything that people was looking for too long. Apart from that, there are lots of the things to know about Hadoop. For knowing here are some listed mind-blowing facts about Hadoop that should you know!  Over 90% of data in the world was created in past two years. Every 2 days we create as much information as we did from the beginning of time  Google now processe...

Data drives the modern organizations of the world so don’t be surprised if I call this world a data-driven world. Today’s business enterprises owe a huge part of their success to an economy that is firmly knowledge-oriented. The volume, variety , and velocity of available data have grown exponentially. How an organization defines its data strategy and its approach towards analyzing and using available data will make a critical difference in its ability to compete in the future data world. As there are a lot of options available in the data analytics market these days so this approach includes a lot of choices that organizations need to make like which framework to use? . One of such approach is the choice between Big Data and Machine Learning . Big Data Big data is a term that describes the data characterized by 3Vs: the extreme volume of data, the wide variety of data types and the velocity at which the data must be processed. Big data can be analyzed for i...

The Big data world is continually changing today with more number of innovations taking place every day. To land these lucrative jobs, certain special big data skills can help you greatly. If you already have some knowledge of Big Data, splendid! If not, now is the time to start. Start learning to enhance your Big Data skills   and have a bright Big Data career ! The Top 5 Big Data Skills that are high in Demand are the following: 1. Apache Hadoop: There has been tremendous growth in the development of Apache Hadoop in the last few years. Hadoop components like Hive, Pig, HDFS, HBase, MapReduce , etc. are in high demand these days. 2. NoSQL: The NoSQL databases including Couchbase, MongoDB, etc. are replacing the traditional SQL databases like DB2, Oracle, etc. These distributed NoSQL databases help in meeting the big data storage and access needs. This complements the expertise of Hadoop with its data crunching ability. The professionals with NoSQL expertise can fin...