Study of HADOOP

2019

Hadoop is framework that is processing data with large volume that cannot be processed by conventional systems. Hadoop has management le system called Hadoop Distributed File System (HDFS) that has NameNode and DataNode where the data is divided into blocks based on the total size of dataset. In addition, Hadoop has MapReduce where the dataset is processed in Mapping phase and then reducing phase. Using Hadoop for big data analysis has been revealed important information that can be used for analytical purpose and enabling new products. Big data could be found in many different resources such as social networks, web server logs, broadcast audio streams and banking transactions. In this paper, we illustrated the main steps to setup Hadoop and MapReduce. The illustrated version in this work is the latest released of Hadoop 3.1.1 for big data analysis. A simpli ed pseudo code is provided to show the functionality of Map class and reduce class. The developed steps are applied with a given example that could be generalized with bigger data.

2020

Big Data make conversant with novel technology, skills and processes to your information architecture and the people that operate, design, and utilization them. The big data delineate a holistic information management contrivance that comprise and integrates numerous new types of data and data management together conventional data. The Hadoop is an unlocked source software framework licensed under the Apache Software Foundation, render for supporting data profound applications running on huge grids and clusters, to proffer scalable, credible, and distributed computing. This is invented to scale up from single servers to thousands of machines, every proposition local computation and storage. In this paper, we have endeavored to converse about on the taxonomy for big data and Hadoop technology. Eventually, the big data technologies are necessary in providing more actual analysis, which may leadership to more concrete decision-making consequence in greater operational capacity, cost de...

Semiconductor science and information devices, 2022

The data and internet are highly growing which causes problems in management of the big-data. For these kinds of problems, there are many software frameworks used to increase the performance of the distributed system. This software is used for the availability of large data storage. One of the most beneficial software frameworks used to utilize data in distributed systems is Hadoop. This paper introduces Apache Hadoop architecture, components of Hadoop, their significance in managing vast volumes of data in a distributed system. Hadoop Distributed File System enables the storage of enormous chunks of data over a distributed network. Hadoop Framework maintains fsImage and edits files, which supports the availability and integrity of data. This paper includes cases of Hadoop implementation, such as monitoring weather, processing bioinformatics.

With an increased usage of the internet, the data usage is also getting increased exponentially year on year. So obviously to handle such an enormous data we needed a better platform to process data. So a programming model was introduced called Map Reduce, which process big amounts of data in-parallel on large clusters (thousands of nodes) of commodity hardware in a reliable, fault-tolerant manner. Since HADOOP has been emerged as a popular tool for BIG DATA implementation, the paper deals with the overall architecture of HADOOP along with the details of its various components. Jagjit Kaur | Heena Girdher"HADOOP: A Solution to Big Data Problems using Partitioning Mechanism Map-Reduce" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14374.pdf

Asian Journal of Research in Computer Science, 2021

In the last few days, data and the internet have become increasingly growing, occurring in big data. For these problems, there are many software frameworks used to increase the performance of the distributed system. This software is used for available ample data storage. One of the most beneficial software frameworks used to utilize data in distributed systems is Hadoop. This software creates machine clustering and formatting the work between them. Hadoop consists of two major components: Hadoop Distributed File System (HDFS) and Map Reduce (MR). By Hadoop, we can process, count, and distribute each word in a large file and know the number of affecting for each of them. The HDFS is designed to effectively store and transmit colossal data sets to high-bandwidth user applications. The differences between this and other file systems provided are relevant. HDFS is intended for low-cost hardware and is exceptionally tolerant to defects. Thousands of computers in a vast cluster both have directly associated storage functions and user programmers. The resource scales with demand while being cost-effective in all sizes by distributing storage and calculation through numerous servers. Depending on the above characteristics of the HDFS, many researchers worked in this field trying to enhance the performance and efficiency of the addressed file system to be one of the most active cloud systems. This paper offers an adequate study to review the essential investigations as a trend beneficial for researchers wishing to operate

The MapReduce model has become an important parallel processing model for largescale data-intensive applications like data mining and web indexing. Hadoop, an opensource implementation of MapReduce, is widely applied to support cluster computing jobs requiring low response time. The different issues of Hadoop are discussed here and then for them what are the solutions which are proposed in the various papers which are studied by the author are discussed here. Finally, Hadoop is not an easy environment to manage. The current Hadoop implementation assumes that computing nodes in a cluster are homogeneous in nature. Network delays due to data movement during running time have been ignored in the recent Hadoop research. Unfortunately, both the homogeneity and data locality assumptions in Hadoop are optimistic at best and unachievable at worst, introduces performance problems in virtualized data centers. The analysis of SPOF existing in critical nodes of Hadoop and proposes a metadata replication based solution to enable Hadoop high availability. The goal of heterogeneity can be achieved by a data placement scheme which distributes and stores data across multiple heterogeneous nodes based on their computing capacities. Analysts said that IT using the technology to aggregate and store data from multiple sources can create a whole slew of problems related to access control and ownership. Applications analyzing merged data in a Hadoop environment can result in the creation of new datasets that may also need to be protected.

Data is getting bigger and bigger in size that is called as Big Data. Big Data may be structured, unstructured and semi structured. Traditional systems are not good to manage this huge amount of data. So, it is required to use best sources to manage this Big Data. Hadoop is Highly Archived Distributed Object Oriented Programming tool which is an open source software platform. Hadoop is written Java. It is used to store and manage large amount of data. In this paper configuration of Hadoop single node cluster is explained. Hardware and software requirements are also described. Some running commands are also explained for Hadoop. Map Reduce job of Hadoop also presented.

Big Data is a term used to describe large collections of data that may be unstructured, and grow so large and quickly that it is difficult to manage with regular database or statistical tools. Therefore, Big Data solutions based on Hadoop and other analytics software are becoming more and more relevant.This massive amount of data can be analyzed by using Hadoop. Hadoop is an open source software project that enables the distributed processing of large data sets across clusters of commodity servers. It is designed to scale up from a single server to thousands of machines, with a very high degree of fault tolerance. The technologies used by big data application to handle the enormous data are Hadoop, Map Reduce, Apache Hive, No SQL and HPCC. In this paper I suggest various methods for furnishing to the problems in hand through Map Reduce framework over Hadoop Distributed File System (HDFS). Map Reduce is a Minimization technique which makes use of file indexing with mapping, sorting, shuffling and finally reducing. Map Reduce techniques have been studied in this paper which is implemented for Big Data analysis using HDFS.

2017

As Big data is demanded, Hadoop has discovered as a popular tool. The big data management in various enterprises, Hadoop is playing an important role. Apache Hadoop is an open source distributed computing framework for storing and processing huge datasets distributed across many clusters. Apache Hadoop is having its specific components to store and analyze the variety of datasets. Principal part of this paper presents the Hadoop Distributed File System (HDFS) architecture in that how DataNodes and NameNode have communication to achieve fault-tolerance and about the MapReduce. MapReduce and Hadoop HDFS are the two components used by Hadoop to enable various types of operation on its platform.

2021

Apache Hadoop is a collection of open-source software utilities that facilitates using a network of many computers to solve problems involving massive amounts of data and computation. It provides a software framework for distributed storage and processing of big data using the MapReduce programming model. Hadoop was originally designed for computer clusters built from commodity hardware, which is still the common use. It has since also found use on clusters of higher-end hardware. All the modules in Hadoop are designed with a fundamental assumption that hardware failures are common occurrences and should be automatically handled by the framework.