{"id":2084,"date":"2020-11-13T14:58:39","date_gmt":"2020-11-13T06:58:39","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=2084"},"modified":"2023-12-04T15:19:19","modified_gmt":"2023-12-04T07:19:19","slug":"hadoop-ha%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=2084","title":{"rendered":"hadoop HDFS-HA\u6a21\u5f0f\u7406\u8bba"},"content":{"rendered":"<h3>hadoop\u96c6\u7fa4\u95ee\u9898<\/h3>\n<p>hadoop\u96c6\u7fa4\u662f\u4e3b\u4ece\u7684<\/p>\n<ul>\n<li>\u4f18\u70b9\uff1a<br \/>\n\u4e3b\u4ece\u96c6\u7fa4\uff1a\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\uff0c\u4e3b\u8bed\u4ece\u5199\u4f5c<br \/>\n\u4e3b\uff1a\u5355\u70b9\uff0c\u6570\u636e\u4e00\u81f4\u597d\u638c\u63e1<\/p>\n<\/li>\n<li>\n<p>\u95ee\u9898\uff1a\uff08\u4e3b\u4ece\u901a\u75c5\uff09<br \/>\n\u5355\u70b9\u6545\u969c\uff0c\u96c6\u7fa4\u6574\u4f53\u4e0d\u53ef\u7528<br \/>\n\u538b\u529b\u8fc7\u5927\uff0c\u5185\u5b58\u53d7\u9650<\/p>\n<\/li>\n<\/ul>\n<h3>\u89e3\u51b3\u65b9\u6848<\/h3>\n<ul>\n<li>\n<p>\u5355\u70b9\u6545\u969c<br \/>\nHA high available \u9ad8\u53ef\u7528<br \/>\n\u591a\u4e2aNN\uff0c\u4e3b\u5907\u5207\u6362\uff0c\u4e3b<\/p>\n<\/li>\n<li>\n<p>\u538b\u529b\u8fc7\u5927\uff0c\u5185\u5b58\u53d7\u9650\uff1a<br \/>\n\u8054\u90a6\u673a\u5236\uff1aFederation   \uff08\u5143\u6570\u636e\u5206\u7247\uff09<br \/>\n\u591a\u4e2aNN\uff0c\u7ba1\u7406\u4e0d\u540c\u5143\u6570\u636e<\/p>\n<\/li>\n<li>\n<p>hadoop 2.x\u53ea\u652f\u6301HA\u7684\u4e00\u4e3b\u4e00\u5907<\/p>\n<\/li>\n<\/ul>\n<h3>HDFS-HA<\/h3>\n<p>\u89e3\u51b3\u5355\u70b9\u6545\u969c\u95ee\u9898<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_b5739598420a17011f748db455bb28cd.jpg\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_5b73fb1241d7048166655b6dd44dc4bf.jpg\" alt=\"\" \/><\/p>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/wyxxt.org.cn\/archives\/cap\u7406\u8bba.html\" title=\"CAP\u539f\u5219\">CAP\u539f\u5219<\/a><\/p>\n<p>\u901a\u8fc7\u53ef\u9760\u7684\u4e2d\u95f4\u4ef6\uff0c\u6700\u6c42\u6700\u7ec8\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u57fa\u4e8e\u6d88\u606f\u4f20\u9012\u7684\u4e00\u81f4\u6027\u7b97\u6cd5<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/wyxxt.org.cn\/archives\/\u4e00\u81f4\u6027\u7b97\u6cd5paxos.html\" title=\"Paxos\">Paxos<\/a><\/p>\n<p><em>\u7b80\u5316\u601d\u8def\uff1a<\/em><br \/>\n\u5206\u5e03\u5f0f\u8282\u70b9\u662f\u5426\u660e\u786e<br \/>\n\u8282\u70b9\u6743\u91cd\u662f\u5426\u660e\u786e<\/p>\n<p>\u5f3a\u4e00\u81f4\u6027\u7834\u574f\u53ef\u7528\u6027<br \/>\n\u8fc7\u534a\u901a\u8fc7\u53ef\u4ee5\u4e2d\u548c\u4e00\u81f4\u6027\u548c\u53ef\u7528\u6027<br \/>\n\u6700\u7b80\u5355\u7684\u81ea\u6211\u534f\u8c03\u5b9e\u73b0\uff1a\u4e3b\u4ece<\/p>\n<p>\u4e3b\u7684\u9009\u4e3e\uff1a\u660e\u786e\u8282\u70b9\u6570\u91cf\u548c\u6743\u91cd<br \/>\n\u4e3b\u4ece\u7684\u804c\u80fd\uff1a<br \/>\n\u4e3b\uff1a\u589e\u5220\u6539\u67e5<br \/>\n\u4ece\uff1a\u67e5\u8be2\uff0c\u589e\u5220\u6539\u4f20\u9012\u7ed9\u4e3b<br \/>\n\u4e3b\u4e0e\u4ece\uff1a\u8fc7\u534a\u6570\u540c\u6b65\u6570\u636e<\/p>\n<p><em>\u6211\u4eec\u4e00\u822c\u5047\u8bbe\u7f51\u7edc\u7b49\u56e0\u7d20\u662f\u7a33\u5b9a\u7684<\/em><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_4709c9f9aa4be275fbb6fd74595b98ac.jpg\" alt=\"\" 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\/>\n\u4e8b\u4ef6\u56de\u8c03\u673a\u5236<\/p>\n<\/li>\n<li>\n<p>DN\u540c\u65f6\u5411NNs\u6c47\u62a5block\u6e05\u5355<\/p>\n<\/li>\n<\/ul>\n<h3>HDFS-Federation<\/h3>\n<p>\u89e3\u51b3\u538b\u529b\u8fc7\u5927\uff0c\u5185\u5b58\u53d7\u9650\u95ee\u9898<\/p>\n<ul>\n<li>\u5143\u6570\u636e\u5206\u6cbb\uff0c\u590d\u7528DN\u5b58\u50a8<\/p>\n<\/li>\n<li>\n<p>\u5143\u6570\u636e\u8bbf\u95ee\u9694\u79bb\u6027<\/p>\n<\/li>\n<li>\n<p>DN\u76ee\u5f55\u9694\u79bbblock<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_355dd7fac6eea371371329e7a99e630d.jpg\" alt=\"\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>hadoop\u96c6\u7fa4\u95ee\u9898 hadoop\u96c6\u7fa4\u662f\u4e3b\u4ece\u7684 \u4f18\u70b9\uff1a \u4e3b\u4ece\u96c6\u7fa4\uff1a\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\uff0c\u4e3b\u8bed\u4ece\u5199\u4f5c \u4e3b\uff1a\u5355\u70b9\uff0c\u6570\u636e\u4e00\u81f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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