{"id":167579,"date":"2023-04-05T14:26:00","date_gmt":"2023-04-05T13:26:00","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=167579"},"modified":"2023-10-30T18:48:47","modified_gmt":"2023-10-30T17:48:47","slug":"hadoop-what-is-it","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/hadoop-what-is-it","title":{"rendered":"Hadoop: what is it and how to learn to use it?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"167579\" class=\"elementor elementor-167579\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-529085f e-flex e-con-boxed e-con\" data-id=\"529085f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75365f3 elementor-widget elementor-widget-text-editor\" data-id=\"75365f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"font-weight: 400;\">Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026<\/span><\/p><p><span style=\"font-weight: 400;\">For several decades, companies mainly stored their data in the <\/span><b>Relational DataBases Management System<\/b><span style=\"font-weight: 400;\"> (RDBMS) in order to store them and perform queries. However, this type of database does not allow the storing of <\/span><b>unstructured data <\/b><span style=\"font-weight: 400;\">and is not adapted to the vast volumes of Big Data.<\/span><\/p><p><span style=\"font-weight: 400;\">Indeed, digitalization and the appearance of many technologies such as <\/span><b>IoT<\/b><span style=\"font-weight: 400;\"> and smartphones have caused an explosion in the volume of raw data. Faced with this revolution, new technologies are needed for data storage and processing. The Hadoop software framework allows us to respond to these new constraints.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e8476a elementor-widget elementor-widget-spacer\" data-id=\"2e8476a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}<\/style>\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-08da961 e-flex e-con-boxed e-con\" data-id=\"08da961\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-825fb14 elementor-widget elementor-widget-heading\" data-id=\"825fb14\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">What is Hadoop?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1306824 elementor-widget elementor-widget-text-editor\" data-id=\"1306824\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Hadoop is a software framework dedicated to the storage and processing of large volumes of data. It is an open source project, sponsored by the <\/span><a href=\"https:\/\/www.apache.org\/\"><b>Apache Software Foundation<\/b><\/a><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">It is not a product but a <\/span><b>framework of instructions<\/b><span style=\"font-weight: 400;\"> for the storage and processing of distributed data. Various software vendors have used Hadoop to create commercial Big Data management products.<\/span><\/p><p><span style=\"font-weight: 400;\">Hadoop&#8217;s data systems are not limited in terms of scale, which means that more hardware and clusters can be added to support a heavier load without reconfiguration or the purchase of expensive software licenses.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-439d6cc elementor-widget elementor-widget-spacer\" data-id=\"439d6cc\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c9a0f5 e-flex e-con-boxed e-con\" data-id=\"7c9a0f5\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6f0a88b elementor-widget elementor-widget-heading\" data-id=\"6f0a88b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The history of Hadoop<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0bd063 elementor-widget elementor-widget-spacer\" data-id=\"a0bd063\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f774feb elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"f774feb\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=eRgFNW4QFDc&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8cab893 elementor-widget elementor-widget-text-editor\" data-id=\"8cab893\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The origin of Hadoop is closely linked to the <\/span><b>exponential growth of the World Wide Web<\/b><span style=\"font-weight: 400;\"> over the last decade. The web has grown to include several billion pages. As a result, it has become difficult to search for information efficiently.<\/span><\/p><p><span style=\"font-weight: 400;\">We have entered the <\/span><b>era of Big Data<\/b><span style=\"font-weight: 400;\">. It has become more complex to store information efficiently for easy retrieval, and to process the data after storing it.<\/span><\/p><p><span style=\"font-weight: 400;\">To address this problem, many open source projects have been developed. The goal was to <\/span><b>provide faster search results<\/b><span style=\"font-weight: 400;\"> on the web. One of the solutions adopted was to distribute the data and the calculations on a cluster of servers to allow simultaneous processing.<\/span><\/p><p><span style=\"font-weight: 400;\">This is how Hadoop was born. In 2002, Doug Cutting and Mike Caferella of Google were working on the<\/span> <a href=\"https:\/\/nutch.apache.org\/\"><b>Apache Nutch<\/b><\/a><span style=\"font-weight: 400;\"> open source web crawler project. They faced difficulties in storing the data, and the costs were <\/span><b>extremely high<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">In 2003, Google introduced its<\/span><b> GFS file system<\/b><span style=\"font-weight: 400;\">: Google File System. It is a distributed file system designed to provide efficient access to data. In 2004, the American firm published a white paper on Map Reduce, the algorithm for simplifying data processing on large clusters. These publications of Google have strongly influenced the genesis of Hadoop.<\/span><\/p><p><span style=\"font-weight: 400;\">Then in 2005, Cutting and Cafarella unveiled their new NDFS (<\/span><b>Nutch Distributed File System<\/b><span style=\"font-weight: 400;\">) file system that also included Map Reduce. When he left Google to join Yahoo in 2006, Doug Cutting based on the Nutch project to launch Hadoop (whose name is inspired by a stuffed elephant of Cutting&#8217;s son) and its HDFS file system. The version 0.1.0 is relaxed.<\/span><\/p><p><span style=\"font-weight: 400;\">Afterwards, Hadoop does not stop growing. It becomes in 2008 the fastest system to sort a terabyte of data on a cluster of 900 nodes in only 209 seconds. Version 2.2 was released in 2013, and version 3.0 in 2017.<\/span><\/p><p><span style=\"font-weight: 400;\">In addition to its performance for<\/span> <a href=\"https:\/\/datascientest.com\/en\/big-data-definition-technologies-uses-and-training\"><b>Big Data<\/b><\/a><span style=\"font-weight: 400;\">, this framework has brought many unexpected benefits. In particular, it has brought down the cost of server deployment.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2bee1e elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"f2bee1e\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/datascientest.com\/en\/data-engineer-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn how to use Hadoop<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-81a52a1 e-flex e-con-boxed e-con\" data-id=\"81a52a1\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e78707c elementor-widget elementor-widget-heading\" data-id=\"e78707c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the four modules in Apache Hadoop?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfc75db elementor-widget elementor-widget-text-editor\" data-id=\"bfc75db\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Apache Hadoop relies on four main modules. First, the <\/span><b>Hadoop Distributed File System<\/b><span style=\"font-weight: 400;\"> (HDFS) is used for data storage. It is comparable to a local file system on a conventional computer.<\/span><\/p><p><span style=\"font-weight: 400;\">However, its performance is much better. HDFS also delivers <\/span><b>excellent elasticity<\/b><span style=\"font-weight: 400;\">. It is possible to scale from a single machine to several thousand of them very easily.<\/span><\/p><p><span style=\"font-weight: 400;\">The second component is the <\/span><b>YARN<\/b><span style=\"font-weight: 400;\"> (Yet Another Resource Negotiator). As its name suggests, it is a resource negotiator. It allows you to schedule tasks, manage resources and monitor cluster nodes and other resources.<\/span><\/p><p><span style=\"font-weight: 400;\">For its part, the Hadoop MapReduce module helps programs perform parallel computations. The <\/span><b>Map task <\/b><span style=\"font-weight: 400;\">converts data into key-value pairs. The <\/span><b>Reduce task<\/b><span style=\"font-weight: 400;\"> consumes the input data, aggregates it and produces the result.<\/span><\/p><p><span style=\"font-weight: 400;\">The last module is Hadoop Common. It uses standard Java libraries between each module.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a83e38 elementor-widget elementor-widget-spacer\" data-id=\"9a83e38\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e309f60 e-flex e-con-boxed e-con\" data-id=\"e309f60\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b27b32f elementor-widget elementor-widget-heading\" data-id=\"b27b32f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How does Hadoop enable Big Data processing?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70a48b3 elementor-widget elementor-widget-spacer\" data-id=\"70a48b3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a08b693 elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"a08b693\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=AZovvBgRLIY&amp;feature=emb_logo&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f0309b elementor-widget elementor-widget-text-editor\" data-id=\"8f0309b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Hadoop&#8217;s processing of Big Data is based on the use of distributed storage and processing capacity of clusters. This is a foundation for building Big Data applications.<\/span><\/p><p><span style=\"font-weight: 400;\">Applications can collect data in different formats and store it in the Hadoop cluster through an API connecting to the <\/span><b>NameNode<\/b><span style=\"font-weight: 400;\">. The NameNode captures the file folder structure, and replicates chunks between different DataNodes for parallel processing.<\/span><\/p><p><span style=\"font-weight: 400;\">Data queries are performed by MapReduce, which also maps all <\/span><b>DataNodes<\/b><span style=\"font-weight: 400;\"> and reduces data-related tasks in HDFS. Map tasks are performed on each node, and reducers are run to link the data and organize the final result.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5b1a9b elementor-widget elementor-widget-spacer\" data-id=\"f5b1a9b\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c4be2f e-flex e-con-boxed e-con\" data-id=\"3c4be2f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30ac56c elementor-widget elementor-widget-heading\" data-id=\"30ac56c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the different tools in the Hadoop ecosystem?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c184c3d elementor-widget elementor-widget-spacer\" data-id=\"c184c3d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-332a1e7 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"332a1e7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"422\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/04\/image1.png\" class=\"attachment-large size-large wp-image-167587\" alt=\"Hadoop different tools\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/04\/image1.png 768w, https:\/\/datascientest.com\/en\/files\/2023\/04\/image1-300x165.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-943e733 elementor-widget elementor-widget-text-editor\" data-id=\"943e733\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The Hadoop ecosystem includes a wide variety of open source<\/span><b> Big Data tools<\/b><span style=\"font-weight: 400;\">. These various tools complement Hadoop and enhance its Big Data processing capability.<\/span><\/p><p><span style=\"font-weight: 400;\">Among the most popular, Apache Hive is a <\/span><a href=\"https:\/\/datascientest.com\/en\/data-warehouse-2\"><b>Data Warehouse<\/b><\/a><span style=\"font-weight: 400;\"> dedicated to processing large datasets stored in HDFS. The Zookeeper tool automates failovers and reduces the impact of a NameNode failure.<\/span><\/p><p><span style=\"font-weight: 400;\">For its part, HBase is a non-relational database for Hadoop. The Apache Flume distributed service enables data streaming of large amounts of log data.<\/span><\/p><p><span style=\"font-weight: 400;\">Also worth mentioning is <\/span><b>Apache Sqoop<\/b><span style=\"font-weight: 400;\">, a command-line tool for migrating data between Hadoop and relational databases. The Apache Pig development platform enables the development of jobs to be run on Hadoop.<\/span><\/p><p><span style=\"font-weight: 400;\">The Apache Oozie scheduling system facilitates the management of <strong>Hadoop jobs<\/strong>. Finally, HCatalog is a table management tool for sorting data from various processing systems.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d1e948 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"7d1e948\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/datascientest.com\/en\/data-engineer-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Discover the Hadoop ecosystem<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-69a190e e-flex e-con-boxed e-con\" data-id=\"69a190e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d559abb elementor-widget elementor-widget-heading\" data-id=\"d559abb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the advantages of Hadoop?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82f8265 elementor-widget elementor-widget-text-editor\" data-id=\"82f8265\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The advantages of Hadoop are numerous. Firstly, this framework allows for faster storage and processing of large volumes of data. This is a valuable asset in the age of social networks and the<\/span><b> Internet of Things<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">Furthermore, Hadoop offers the flexibility to store unstructured data of any kind such as text, symbols, images or videos. Unlike a <\/span><b>traditional relational database<\/b><span style=\"font-weight: 400;\">, data can be stored without being processed first. The operation is therefore comparable to a NoSQL database.<\/span><\/p><p><span style=\"font-weight: 400;\">In addition, Hadoop also provides significant processing power. Its distributed computing model offers performance and efficiency.<\/span><\/p><p><span style=\"font-weight: 400;\">This<\/span> <a href=\"https:\/\/datascientest.com\/en\/framework-what-is-it\"><b>open source framework<\/b><\/a><span style=\"font-weight: 400;\"> also makes it possible to tackle Big Data at a <\/span><b>lower cost<\/b><span style=\"font-weight: 400;\">, since it can be used free of charge and freely. It also relies on very common hardware to store data.<\/span><\/p><p><span style=\"font-weight: 400;\">Another major advantage is its elasticity. You can simply change the number of nodes in a cluster to expand or reduce the system.<\/span><\/p><p><span style=\"font-weight: 400;\">Finally, Hadoop does <\/span><b>not depend on hardware<\/b><span style=\"font-weight: 400;\"> to preserve data availability. Data is automatically copied multiple times to different nodes in the cluster. If one device fails, the system automatically redirects the task to another. The framework is therefore fault-tolerant.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50afe01 elementor-widget elementor-widget-spacer\" data-id=\"50afe01\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-946087f e-flex e-con-boxed e-con\" data-id=\"946087f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-00434d5 elementor-widget elementor-widget-heading\" data-id=\"00434d5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the weaknesses of Hadoop?\n<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bbeca1 elementor-widget elementor-widget-text-editor\" data-id=\"9bbeca1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Despite all its strengths, Hadoop also has weaknesses. Firstly, the MapReduce algorithm is not always adequate. It is suitable for the simplest information queries, but not for iterative tasks. It is also not effective for <\/span><b>advanced analytical computing<\/b><span style=\"font-weight: 400;\">, since iterative algorithms require intensive intercommunication.<\/span><\/p><p><span style=\"font-weight: 400;\">For data management, metadata and data governance, Hadoop does not offer suitable and understandable tools. There is also a <\/span><b>lack of tools<\/b><span style=\"font-weight: 400;\"> for data standardization and quality determination.<\/span><\/p><p><span style=\"font-weight: 400;\">Another problem is that <\/span><b>Hadoop is difficult to master<\/b><span style=\"font-weight: 400;\">. Therefore, there are few programmers who are competent enough to use MapReduce. This is why many vendors add <\/span><strong><a href=\"https:\/\/datascientest.com\/en\/sql-learn-all-about-the-programming-language-for-databases\">SQL database<\/a><\/strong><span style=\"font-weight: 400;\"> technology on top of Hadoop. There are significantly more programmers who are proficient in SQL.<\/span><\/p><p><span style=\"font-weight: 400;\">The final weakness is <\/span><b>data security<\/b><span style=\"font-weight: 400;\">. However, the Kerberos authentication protocol helps secure Hadoop environments.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34aa3d1 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"34aa3d1\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Start a training program in Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9407f69 e-flex e-con-boxed e-con\" data-id=\"9407f69\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b21242 elementor-widget elementor-widget-heading\" data-id=\"7b21242\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the use cases for Hadoop?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee350e0 elementor-widget elementor-widget-text-editor\" data-id=\"ee350e0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Hadoop offers multiple possibilities. One of its main use cases is Big Data processing. This framework is indeed adapted to the processing of vast volumes of data, of the order of several petabytes.<\/span><\/p><p><span style=\"font-weight: 400;\">Such volumes of information require a lot of <\/span><b>processing power<\/b><span style=\"font-weight: 400;\">, and Hadoop is the right solution. An enterprise that needs to process smaller volumes, in the order of a few hundred gigabytes, will have to make do with an <\/span><b>alternative solution<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">Another major use case for Hadoop is the storage of various data. The flexibility of this framework allows it to support many different types of data. It is possible to store text, images, or even videos. The nature of the data processing can be selected according to the needs. This gives us the flexibility of a <\/span><b>data lake<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">In addition, Hadoop is used for parallel data processing. The <\/span><b>MapReduce algorithm<\/b><span style=\"font-weight: 400;\"> is used to orchestrate the parallel processing of stored data. This means that several tasks can be performed <\/span><b>simultaneously<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13e6c50 elementor-widget elementor-widget-spacer\" data-id=\"13e6c50\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-25ff21c e-flex e-con-boxed e-con\" data-id=\"25ff21c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f6f0604 elementor-widget elementor-widget-heading\" data-id=\"f6f0604\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How are companies using Hadoop?\n<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdc63e5 elementor-widget elementor-widget-text-editor\" data-id=\"fdc63e5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Companies from all industries use Hadoop for Big Data processing. For example, the framework helps to <\/span><b>understand customer needs<\/b><span style=\"font-weight: 400;\"> and expectations.<\/span><\/p><p><span style=\"font-weight: 400;\">Large companies in the financial and social networking industries use this technology to understand consumer expectations by <\/span><b>analyzing Big Data<\/b><span style=\"font-weight: 400;\"> on their activity, on their behavior.<\/span><\/p><p><span style=\"font-weight: 400;\">From this data, it is possible to propose personalized offers to customers. This is the principle behind targeted advertising on social networks or recommendation engines on e-commerce platforms.<\/span><\/p><p><span style=\"font-weight: 400;\">This leads to better decisions and higher profits. By analyzing data on employee behavior and interactions, it is also possible to improve the work environment.<\/span><\/p><p><span style=\"font-weight: 400;\">In the healthcare industry, <\/span><b>medical institutions<\/b><span style=\"font-weight: 400;\"> can use Hadoop to monitor the vast amount of data related to health problems and medical treatment outcomes. Researchers can analyze this data to identify health problems and choose appropriate treatments.<\/span><\/p><p><span style=\"font-weight: 400;\">Traders and more generally,<\/span><b> the financial world also use Hadoop<\/b><span style=\"font-weight: 400;\">. Its algorithm scans market data to identify opportunities and seasonal trends. Finance companies can automate operations using the framework.<\/span><\/p><p><span style=\"font-weight: 400;\">In addition, Hadoop is used for the<\/span><b> Internet of Things<\/b><span style=\"font-weight: 400;\">. These devices require data to function properly. Therefore, manufacturers use Hadoop as a data warehouse to store the <\/span><b>billions of transactions<\/b><span style=\"font-weight: 400;\"> recorded by the IoT. This way, the <\/span><b>data streaming <\/b><span style=\"font-weight: 400;\">can be managed properly.<\/span><\/p><p><span style=\"font-weight: 400;\">These are just a few examples. In addition, Hadoop is used in the field of sports and scientific research.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3b1959 elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"c3b1959\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=AdOBnCb8Xbg&amp;t=2s&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87f78c5 elementor-widget elementor-widget-spacer\" data-id=\"87f78c5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d629868 e-flex e-con-boxed e-con\" data-id=\"d629868\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-635eadb elementor-widget elementor-widget-heading\" data-id=\"635eadb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How to learn to use Hadoop?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21970d2 elementor-widget elementor-widget-text-editor\" data-id=\"21970d2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">In summary, Hadoop is very useful for Big Data processing when implemented and used correctly. This versatile and <\/span><b>multipurpose tool <\/b><span style=\"font-weight: 400;\">is ideal for companies dealing with large volumes of data.<\/span><\/p><p><span style=\"font-weight: 400;\">In this context, learning to master Hadoop can be very useful. Your skills will be<\/span><b> highly sought<\/b><span style=\"font-weight: 400;\"> after by many organizations in all industries, so you can easily find a well-paying job.<\/span><\/p><p><span style=\"font-weight: 400;\">If you are a business owner, you can also <\/span><b>fund Hadoop training<\/b><span style=\"font-weight: 400;\"> for your employees. This will enable them to handle Big Data and seize all the opportunities offered.<\/span><\/p><p><span style=\"font-weight: 400;\">DataScientest&#8217;s Data Engineer training offers to learn how to master Hadoop, and all the data engineering tools and techniques. The program is divided into <\/span><b>five modules<\/b><span style=\"font-weight: 400;\">: programming, database, Big Data Volume, Big Data Speed, and automation and deployment.<\/span><\/p><p><span style=\"font-weight: 400;\">Throughout the course, learners will discover Hadoop, but also Hive, Hbase, Pig, Spark, Bash, Cassandra, SQL or even Kafka. At the end of the training, a Data Engineer diploma <\/span><b>certified by the Sorbonne University<\/b><span style=\"font-weight: 400;\"> is awarded.<\/span><\/p><p><span style=\"font-weight: 400;\">This course allows students to train as data engineers. Among the alumni, 93% found a job immediately after graduation. The skills acquired can be used directly in companies.<\/span><\/p><p><span style=\"font-weight: 400;\">The program can be completed in 9 months in<\/span><b> bootcamp<\/b><span style=\"font-weight: 400;\">, or 11 weeks in <\/span><b>continuing education<\/b><span style=\"font-weight: 400;\">. All of our courses adopt an innovative hybrid approach of Blended Learning, combining face-to-face and distance learning.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d26ebb elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"9d26ebb\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/datascientest.com\/en\/data-engineer-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Start a Data Engineer Course<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-915c25c e-flex e-con-boxed e-con\" data-id=\"915c25c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b72dce9 elementor-widget elementor-widget-html\" data-id=\"b72dce9\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"What is Hadoop?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Hadoop is a software framework dedicated to the storage and processing of large volumes of data. It is an open source project, sponsored by the Apache Software Foundation. It is not a product per se, but a framework of instructions for the storage and processing of distributed data. Various software vendors have used Hadoop to create commercial Big Data management products.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"What are the different tools in the Hadoop ecosystem?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Among the most popular, Apache Hive is a Data Warehouse dedicated to processing large datasets stored in HDFS. The Zookeeper tool automates failovers and reduces the impact of a NameNode failure.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"What are the advantages of Hadoop?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"The advantages of Hadoop are numerous. Firstly, this framework allows for faster storage and processing of large volumes of data. This is a valuable asset in the age of social networks and the Internet of Things.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"What are the use cases for Hadoop?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Hadoop offers multiple possibilities. One of its main use cases is Big Data processing. This framework is indeed adapted to the processing of vast volumes of data, of the order of several petabytes.\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026 For several decades, companies mainly stored their data in the Relational DataBases Management System (RDBMS) in order to store them and perform queries. However, this type of database does not allow [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":167581,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2425],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hadoop: what is it and how to learn to use it?<\/title>\n<meta name=\"description\" content=\"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hadoop: what is it and how to learn to use it?\" \/>\n<meta property=\"og:description\" content=\"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\" \/>\n<meta property=\"og:site_name\" content=\"Data Science Courses | DataScientest\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataScientestEN\" \/>\n<meta property=\"article:published_time\" content=\"2023-04-05T13:26:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-30T17:48:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/en\/files\/2023\/04\/illu_hadoop_blog-107.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"562\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataScientest__\" \/>\n<meta name=\"twitter:site\" content=\"@DataScientest__\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/datascientest.com\/en\/hadoop-what-is-it#article\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Hadoop: what is it and how to learn to use it?\",\"datePublished\":\"2023-04-05T13:26:00+00:00\",\"dateModified\":\"2023-10-30T17:48:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\"},\"wordCount\":1972,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/datascientest.com\/en\/#organization\"},\"articleSection\":[\"Data Science\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/datascientest.com\/en\/hadoop-what-is-it#respond\"]}],\"copyrightYear\":\"2023\",\"copyrightHolder\":{\"@id\":\"https:\/\/datascientest.com\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\",\"url\":\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\",\"name\":\"Hadoop: what is it and how to learn to use it?\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/en\/#website\"},\"datePublished\":\"2023-04-05T13:26:00+00:00\",\"dateModified\":\"2023-10-30T17:48:47+00:00\",\"description\":\"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026\",\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/en\/hadoop-what-is-it\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/en\/#website\",\"url\":\"https:\/\/datascientest.com\/en\/\",\"name\":\"Data Science Courses | DataScientest\",\"description\":\"Leader in Data Science Courses\",\"publisher\":{\"@id\":\"https:\/\/datascientest.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/datascientest.com\/en\/#organization\",\"name\":\"DataScientest\",\"url\":\"https:\/\/datascientest.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png\",\"contentUrl\":\"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png\",\"width\":301,\"height\":301,\"caption\":\"DataScientest\"},\"image\":{\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/DataScientestEN\",\"https:\/\/twitter.com\/DataScientest__\",\"https:\/\/www.linkedin.com\/school\/datascientest\/mycompany\/\",\"https:\/\/www.tiktok.com\/@datascientest\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\/\/datascientest.com\/en\/author\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Hadoop: what is it and how to learn to use it?","description":"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/datascientest.com\/en\/hadoop-what-is-it","og_locale":"en_GB","og_type":"article","og_title":"Hadoop: what is it and how to learn to use it?","og_description":"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning,","og_url":"https:\/\/datascientest.com\/en\/hadoop-what-is-it","og_site_name":"Data Science Courses | DataScientest","article_publisher":"https:\/\/www.facebook.com\/DataScientestEN","article_published_time":"2023-04-05T13:26:00+00:00","article_modified_time":"2023-10-30T17:48:47+00:00","og_image":[{"width":1024,"height":562,"url":"https:\/\/datascientest.com\/en\/files\/2023\/04\/illu_hadoop_blog-107.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@DataScientest__","twitter_site":"@DataScientest__","twitter_misc":{"Written by":"","Estimated reading time":"9 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/datascientest.com\/en\/hadoop-what-is-it#article","isPartOf":{"@id":"https:\/\/datascientest.com\/en\/hadoop-what-is-it"},"author":{"name":"","@id":""},"headline":"Hadoop: what is it and how to learn to use it?","datePublished":"2023-04-05T13:26:00+00:00","dateModified":"2023-10-30T17:48:47+00:00","mainEntityOfPage":{"@id":"https:\/\/datascientest.com\/en\/hadoop-what-is-it"},"wordCount":1972,"commentCount":0,"publisher":{"@id":"https:\/\/datascientest.com\/en\/#organization"},"articleSection":["Data Science"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/datascientest.com\/en\/hadoop-what-is-it#respond"]}],"copyrightYear":"2023","copyrightHolder":{"@id":"https:\/\/datascientest.com\/#organization"}},{"@type":"WebPage","@id":"https:\/\/datascientest.com\/en\/hadoop-what-is-it","url":"https:\/\/datascientest.com\/en\/hadoop-what-is-it","name":"Hadoop: what is it and how to learn to use it?","isPartOf":{"@id":"https:\/\/datascientest.com\/en\/#website"},"datePublished":"2023-04-05T13:26:00+00:00","dateModified":"2023-10-30T17:48:47+00:00","description":"Hadoop is an Open Source framework dedicated to Big Data storage and processing. Discover everything you need to know: definition, history, functioning, advantages, training\u2026","inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/datascientest.com\/en\/hadoop-what-is-it"]}]},{"@type":"WebSite","@id":"https:\/\/datascientest.com\/en\/#website","url":"https:\/\/datascientest.com\/en\/","name":"Data Science Courses | DataScientest","description":"Leader in Data Science Courses","publisher":{"@id":"https:\/\/datascientest.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/datascientest.com\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/datascientest.com\/en\/#organization","name":"DataScientest","url":"https:\/\/datascientest.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png","contentUrl":"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png","width":301,"height":301,"caption":"DataScientest"},"image":{"@id":"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/DataScientestEN","https:\/\/twitter.com\/DataScientest__","https:\/\/www.linkedin.com\/school\/datascientest\/mycompany\/","https:\/\/www.tiktok.com\/@datascientest"]},{"@type":"Person","@id":"","url":"https:\/\/datascientest.com\/en\/author"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts\/167579"}],"collection":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/comments?post=167579"}],"version-history":[{"count":0,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts\/167579\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/media\/167581"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/media?parent=167579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/categories?post=167579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/tags?post=167579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}