{"id":70472,"date":"2021-06-15T08:27:33","date_gmt":"2021-06-15T07:27:33","guid":{"rendered":"https:\/\/datascientest.com\/?p=70472"},"modified":"2024-04-23T15:43:42","modified_gmt":"2024-04-23T15:43:42","slug":"hbase-guide-introductif-complet","status":"publish","type":"post","link":"https:\/\/datascientest.com\/hbase-guide-introductif-complet","title":{"rendered":"Apache HBase : Guide introductif complet"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"70472\" class=\"elementor elementor-70472\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7183720 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7183720\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7403e87\" data-id=\"7403e87\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9a8a139 elementor-widget elementor-widget-heading\" data-id=\"9a8a139\" 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><h2 class=\"elementor-heading-title elementor-size-default\">Avec la masse et la vari\u00e9t\u00e9 des donn\u00e9es disponibles, il convient d\u2019adapter leur gestion. Dans un environnement o\u00f9 r\u00e8gne le Big Data, l\u2019approche appropri\u00e9e consiste \u00e0 distribuer le stockage des donn\u00e9es afin de faciliter leur traitement. Pour ce faire, une nouvelle cat\u00e9gorie de syst\u00e8me de gestion de\u00a0base de donn\u00e9es appel\u00e9e \u00ab\u00a0No-SQL\u00a0\u00bb a vu le jour. HBase en fait partie.\u00a0<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2868bd3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2868bd3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-77867a9\" data-id=\"77867a9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c0601a6 elementor-widget elementor-widget-text-editor\" data-id=\"c0601a6\" 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>Plus pr\u00e9cis\u00e9ment, <a href=\"https:\/\/hbase.apache.org\/\">HBase<\/a> fait partie de la cat\u00e9gorie des syst\u00e8mes<strong>\u00a0de gestion de bases de donn\u00e9es orient\u00e9s colonne<\/strong>. Gr\u00e2ce \u00e0 sa structure famili\u00e8re aux <strong>utilisateurs-m\u00e9tiers<\/strong> et sa grande capacit\u00e9 de gestion de donn\u00e9es, HBase est de plus en plus utilis\u00e9 par les entreprises, m\u00eame lorsque la volum\u00e9trie de donn\u00e9es est modeste.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c126a0c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c126a0c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f9a4a91\" data-id=\"f9a4a91\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-de11e26 elementor-widget elementor-widget-heading\" data-id=\"de11e26\" 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\">Le concept g\u00e9n\u00e9ral de HBase<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-875705d elementor-widget elementor-widget-text-editor\" data-id=\"875705d\" 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;\">Pour les <strong>syst\u00e8mes de gestion de base de donn\u00e9es (SGBD)<\/strong> orient\u00e9s colonne, soit en \u201cNo-SQL\u201d, la notion de base de donn\u00e9es et la fa\u00e7on dont les donn\u00e9es sont stock\u00e9es sont tr\u00e8s diff\u00e9rentes des syst\u00e8mes de gestion de bases de donn\u00e9es relationnelles.<br \/><\/span><\/p><p><span style=\"font-weight: 400;\">Apache HBase est un <\/span><b>data store <\/b>ou<b> magasin de donn\u00e9es<\/b> <span style=\"font-weight: 400;\">orient\u00e9 colonne utilisant des paires cl\u00e9\/valeur. La base de donn\u00e9es HBase s\u2019installe g\u00e9n\u00e9ralement sur le syst\u00e8me de fichiers <\/span><b>HDFS <\/b><span style=\"font-weight: 400;\">(pour Hadoop Distributed File System).\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">L\u2019approche de ce d\u00e9p\u00f4t de donn\u00e9es centr\u00e9e sur <\/span><b>l\u2019\u00e9volutivit\u00e9<\/b><span style=\"font-weight: 400;\"> lui permet de prendre en charge des tables de base de donn\u00e9es extr\u00eamement volumineuses, par exemple des tables contenant des milliards de lignes et des millions de colonnes.<\/span><\/p><p><span style=\"font-weight: 400;\">HBase est un\u00a0 des composants additionnels d\u2019<\/span><b>Apache<\/b><span style=\"font-weight: 400;\"> au m\u00eame titre que <a href=\"https:\/\/datascientest.com\/apache-hive\">Hive<\/a><\/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-60d9d302 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"60d9d302\" 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-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-data-scientist\">\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\">Apprendre \u00e0 utiliser HBase<\/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<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-29f79c1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"29f79c1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-52f3a2c\" data-id=\"52f3a2c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-42ece4a elementor-widget elementor-widget-heading\" data-id=\"42ece4a\" 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\">Fonctionnement de HBase<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-705b34e elementor-widget elementor-widget-text-editor\" data-id=\"705b34e\" 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;\">Contrairement aux syst\u00e8mes de bases de donn\u00e9es relationnelles, HBase ne supporte pas un langage d&rsquo;interrogation structur\u00e9 comme <\/span><a href=\"https:\/\/datascientest.com\/sql-tout-savoir\">SQL <\/a><span style=\"font-weight: 400;\">; en fait, HBase n&rsquo;est pas un data store de donn\u00e9es relationnelles.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Un syst\u00e8me HBase est con\u00e7u pour \u00e9voluer <\/span><b>lin\u00e9airement<\/b><span style=\"font-weight: 400;\">. Il comprend un ensemble standard de tables avec des lignes et des colonnes, comme une base de donn\u00e9es traditionnelle. Chaque table doit avoir un \u00e9l\u00e9ment d\u00e9fini comme une cl\u00e9 primaire, et toutes les tentatives d&rsquo;acc\u00e8s aux tables HBase doivent utiliser cette cl\u00e9 primaire.<\/span><\/p><p><span style=\"font-weight: 400;\">HBase peut \u00eatre qualifi\u00e9 comme un<\/span><b> entrep\u00f4t de stockage de donn\u00e9es<\/b><span style=\"font-weight: 400;\">. Alors que les syst\u00e8mes de gestion de base de donn\u00e9es assurent \u00e0 la fois le stockage et le traitement des donn\u00e9es, HBase de son c\u00f4t\u00e9, est plus sp\u00e9cialis\u00e9 sur le stockage de celles-ci.<\/span><\/p><p><span style=\"font-weight: 400;\">HBase est con\u00e7u pour\u00a0:\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Stocker de tr\u00e8s grosses <\/span><b>volum\u00e9tries de donn\u00e9es \u00ab\u00a0\u00e9paves\u00a0\u00bb<\/b><span style=\"font-weight: 400;\">, c\u2019est-\u00e0-dire des donn\u00e9es \u00e0 structure irr\u00e9guli\u00e8re, avec de nombreuses valeurs nulles comme les matrices creuses en alg\u00e8bre.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fournir un acc\u00e8s <\/span><b>en temps r\u00e9el<\/b><span style=\"font-weight: 400;\"> \u00e0 cette grosse volum\u00e9trie de donn\u00e9es aussi bien pour les op\u00e9rations de lecture que d\u2019\u00e9criture sur le HDFS.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u2019appuyer sur les mod\u00e8les de calcul distribu\u00e9s tels que le <\/span><a href=\"https:\/\/www.lebigdata.fr\/mapreduce-tout-savoir\">MapReduce<\/a><span style=\"font-weight: 400;\">, et de tous ses langages d\u2019abstraction tels que Apache Hive, pour l\u2019exploitation de ses donn\u00e9es.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02bc371 elementor-widget elementor-widget-image\" data-id=\"02bc371\" 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=\"800\" height=\"439\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-1024x562.png\" class=\"attachment-large size-large wp-image-76219\" alt=\"sche\u0301ma hadoop\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-1024x562.png 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-300x165.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-768x422.png 768w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-1536x843.png 1536w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/sche\u0301ma_hadoop-116-2048x1124.png 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-e2d6244 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"e2d6244\" 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-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-data-scientist\">\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\">D\u00e9couvrir la formation de Data Scientist<\/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<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4fa9ed2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4fa9ed2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-38b2f25\" data-id=\"38b2f25\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4fd72a elementor-widget elementor-widget-heading\" data-id=\"c4fd72a\" 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\">Pourquoi utilise-t-on HBase ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba0ed0e elementor-widget elementor-widget-text-editor\" data-id=\"ba0ed0e\" 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;\">Les avantages de HBase sont nombreux. Tout d\u2019abord, cette base de donn\u00e9es pr\u00e9sente une importante <\/span><b>tol\u00e9rance aux pannes<\/b><span style=\"font-weight: 400;\">. En effet, les donn\u00e9es sont r\u00e9pliqu\u00e9es sur les diff\u00e9rents serveurs du Data Center et un basculement automatique garantit une haute disponibilit\u00e9, en cas de panne.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">De plus, le \u00ab\u00a0<\/span><a href=\"https:\/\/www.lebigdata.fr\/sharding-definition-avantage\">sharding<\/a> \u00bb<span style=\"font-weight: 400;\">, soit la m\u00e9thode de distribution qui consiste \u00e0 s\u00e9parer un jeu de donn\u00e9es et l\u2019\u00e9quilibrage des charges et des tables, est <\/span><b>automatique<\/b><span style=\"font-weight: 400;\">, ce qui simplifie les op\u00e9rations.<\/span><\/p><p><span style=\"font-weight: 400;\">Cette base de donn\u00e9es non relationnelle est \u00e9galement \u00ab\u00a0<\/span><b>rapide<\/b><span style=\"font-weight: 400;\">\u00a0\u00bb. En effet, elle est capable de proposer des aper\u00e7us des donn\u00e9es <\/span><b>en temps r\u00e9el<\/b><span style=\"font-weight: 400;\">. Un caching in-memory est \u00e9galement propos\u00e9. Aussi, un autre avantage majeur est sa <\/span><b>versatilit\u00e9<\/b><span style=\"font-weight: 400;\">. En effet, les mod\u00e8les de donn\u00e9es peuvent avoir de nombreux cas d\u2019usage. Enfin, il est possible d\u2019exporter les m\u00e9triques via les plug-ins file.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Par ailleurs, le stockage distribu\u00e9 propos\u00e9 par HBase permet d\u2019effectuer des requ\u00eates sur des quantit\u00e9s massives de donn\u00e9es. En outre, il est possible de \u00ab<\/span><b>\u00a0scaler<\/b><span style=\"font-weight: 400;\">\u00a0\u00bb les capacit\u00e9s de lecture et d\u2019\u00e9criture de cette technologie \u00e0 des millions par seconde, ce qui permet de surmonter les limites des syst\u00e8mes de gestion de bases de donn\u00e9es relationnelles.<\/span><\/p><p><span style=\"font-weight: 400;\">HBase permet de regrouper de nombreux attributs <\/span><b>en familles de colonnes<\/b><span style=\"font-weight: 400;\">, de sorte que les \u00e9l\u00e9ments d&rsquo;une famille de colonnes sont tous stock\u00e9s ensemble. Ceci est diff\u00e9rent d&rsquo;une base de donn\u00e9es relationnelle orient\u00e9e ligne, o\u00f9 toutes les colonnes d&rsquo;une ligne donn\u00e9e sont stock\u00e9es ensemble.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8e36db5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8e36db5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c9735c6\" data-id=\"c9735c6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c462e88 elementor-widget elementor-widget-heading\" data-id=\"c462e88\" 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\">Un exemple de HBase<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdbedd6 elementor-widget elementor-widget-text-editor\" data-id=\"fdbedd6\" 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;\">Une colonne HBase repr\u00e9sente un <\/span><b>attribut<\/b><span style=\"font-weight: 400;\"> d&rsquo;un objet. Admettons que la table stocke les journaux de diagnostic des serveurs de votre environnement. Chaque ligne pourrait \u00eatre un enregistrement de journal. Aussi, une colonne typique pourrait \u00eatre l&rsquo;horodatage de l&rsquo;enregistrement du journal, ou le nom du serveur d&rsquo;o\u00f9 provient l&rsquo;enregistrement.<\/span><\/p><p><span style=\"font-weight: 400;\">Avec HBase, vous devez pr\u00e9-d\u00e9finir le sch\u00e9ma de la table et sp\u00e9cifier les familles de colonnes. Cependant, de nouvelles colonnes peuvent \u00eatre ajout\u00e9es aux familles \u00e0 tout moment, ce qui rend le sch\u00e9ma flexible et capable de s&rsquo;adapter aux exigences changeantes des applications.<\/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-83c0dbc elementor-widget elementor-widget-image\" data-id=\"83c0dbc\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"414\" height=\"362\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/Article-10-hbase-image.png\" class=\"attachment-full size-full wp-image-168032\" alt=\"Hbase\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/Article-10-hbase-image.png 414w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/Article-10-hbase-image-300x262.png 300w\" sizes=\"(max-width: 414px) 100vw, 414px\" \/>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7caca491 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7caca491\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2e1156e6\" data-id=\"2e1156e6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52fb43c elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"52fb43c\" 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-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\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\">D\u00e9couvrir les formations de DataScientest<\/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<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a47fd1a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a47fd1a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1d49e59\" data-id=\"1d49e59\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e36fb0f elementor-widget elementor-widget-html\" data-id=\"e36fb0f\" 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\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"Le concept g\u00e9n\u00e9ral de HBase\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Pour les syst\u00e8mes de gestion de base de donn\u00e9es (SGBD) orient\u00e9s colonne, soit en \u201cNo-SQL\u201d, la notion de base de donn\u00e9es et la fa\u00e7on dont les donn\u00e9es sont stock\u00e9es sont tr\u00e8s diff\u00e9rentes des syst\u00e8mes de gestion de bases de donn\u00e9es relationnelles.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Fonctionnement de HBase\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Contrairement aux syst\u00e8mes de bases de donn\u00e9es relationnelles, HBase ne supporte pas un langage d'interrogation structur\u00e9 comme SQL ; en fait, HBase n'est pas un data store de donn\u00e9es relationnelles.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Pourquoi utilise-t-on HBase ?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Les avantages de HBase sont nombreux. Tout d\u2019abord, cette base de donn\u00e9es pr\u00e9sente une importante tol\u00e9rance aux pannes. En effet, les donn\u00e9es sont r\u00e9pliqu\u00e9es sur les diff\u00e9rents serveurs du Data Center, et un basculement automatique garantit une haute disponibilit\u00e9, en cas de panne.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Un exemple de HBase\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Une colonne HBase repr\u00e9sente un attribut d'un objet. Admettons que la table stocke les journaux de diagnostic des serveurs de votre environnement. Chaque ligne pourrait \u00eatre un enregistrement de journal. Aussi, une colonne typique pourrait \u00eatre l'horodatage de l'enregistrement du journal, ou le nom du serveur d'o\u00f9 provient l'enregistrement.\"\n    }\n  }]\n}\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Avec la masse et la vari\u00e9t\u00e9 des donn\u00e9es disponibles, il convient d\u2019adapter leur gestion. Dans un environnement o\u00f9 r\u00e8gne le Big Data, l\u2019approche appropri\u00e9e consiste \u00e0 distribuer le stockage des donn\u00e9es afin de faciliter leur traitement. Pour ce faire, une nouvelle cat\u00e9gorie de syst\u00e8me de gestion de\u00a0base de donn\u00e9es appel\u00e9e \u00ab\u00a0No-SQL\u00a0\u00bb a vu le jour. [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":76214,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"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>Apache HBase : Guide introductif complet<\/title>\n<meta name=\"description\" content=\"Avec la masse et la vari\u00e9t\u00e9 des donn\u00e9es disponibles, il convient d\u2019adapter leur gestion. Dans un environnement o\u00f9 r\u00e8gne le Big Data, l\u2019approche appropri\u00e9e consiste \u00e0 distribuer le stockage des donn\u00e9es afin de faciliter leur traitement. Pour ce faire, une nouvelle cat\u00e9gorie de syst\u00e8me de gestion de\u00a0base de donn\u00e9es appel\u00e9s \u00ab\u00a0No-SQL\u00a0\u00bb a vu le jour. 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