{"id":1926,"date":"2012-06-16T11:19:28","date_gmt":"2012-06-16T02:19:28","guid":{"rendered":"http:\/\/www.creationline.com\/?p=1926"},"modified":"2023-08-29T11:08:54","modified_gmt":"2023-08-29T02:08:54","slug":"hadoop%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86-1","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/author\/higuchi\/1926","title":{"rendered":"Hadoop\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046 [1]"},"content":{"rendered":"<h2>Hadoop\u3068\u306f<\/h2>\n<p>Apache Hadoop\u3068\u306f\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u5206\u6563\u51e6\u7406\u3059\u308b\u305f\u3081\u306eJava\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u7c73Google\u304c\u767a\u8868\u3057\u305fMapReduce\u3084Google File System\u306b\u95a2\u3059\u308b\u8ad6\u6587\u306b\u89e6\u767a\u3055\u308c\u3066\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u7c73Yahoo!\u3084\u7c73Facebook\u3001\u7c73Amazon.com\u3084\u3001\u7c73New York Times\u306a\u3069\u3001\u81a8\u5927\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u4f01\u696d\u306b\u3088\u3063\u3066\u6d3b\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>HDFS\u3068\u306f<\/h2>\n<p>\u5148\u306b\u8ff0\u3079\u305f\u901a\u308a\u3001Hadoop\u306fGoogle\u306eMapReduce\u3084Google File System\u306b\u95a2\u3059\u308b\u8ad6\u6587\u306b\u89e6\u767a\u3055\u308c\u3066\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002Hadoop\u306b\u304a\u3044\u3066Google File System\u306b\u76f8\u5f53\u3059\u308b\u8981\u7d20\u304cHDFS (Hadoop Distributed File System)\u3067\u3059\u3002<br \/>\nHDFS\u306f\u7c21\u5358\u306b\u8a00\u3046\u3068\u3001\u591a\u6570\u306e\u30db\u30b9\u30c8\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u5de8\u5927\u306a\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u6271\u3046\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30c7\u30fc\u30bf\u3092\u8907\u6570\u306e\u30db\u30b9\u30c8\u306b\u5206\u6563\u3057\u3066\u683c\u7d0d\u3059\u308b\u3053\u3068\u3067\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u500b\u3005\u306e\u30db\u30b9\u30c8\u3067RAID\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u3053\u3068\u3082\u7279\u9577\u3067\u3059\u3002<\/p>\n<p>HDFS\u306f\u5168\u4f53\u306e\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u3092\u7ba1\u7406\u3059\u308bName Node\u3068\u547c\u3070\u308c\u308b\u30de\u30b9\u30bf\u30fc\u30b5\u30fc\u30d0\u3068\u3001\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u6271\u3046Data 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Node\u306f\u5358\u4e00\u969c\u5bb3\u70b9\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u9ad8\u53ef\u7528\u6027\u304c\u4eca\u5f8c\u306e\u8ab2\u984c\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>MapReduce\u3068\u306f<\/h2>\n<p>MapReduce\u3068\u306f\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u5206\u6563\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u307e\u305aMap\u51e6\u7406\u306b\u3088\u3063\u3066\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u7d30\u304b\u304f\u5206\u5272\u3057\u3066\u591a\u6570\u306e\u30b5\u30fc\u30d0\u306b\u5272\u308a\u632f\u3063\u3066\u4e26\u5217\u51e6\u7406\u3092\u884c\u308f\u305b\u307e\u3059\u3002\u6b21\u306bReduce\u51e6\u7406\u306b\u3088\u3063\u3066\u591a\u6570\u306e\u30b5\u30fc\u30d0\u304b\u3089\u51e6\u7406\u7d50\u679c\u3092\u96c6\u7d04\u3057\u3001\u76ee\u7684\u306e\u7b54\u3048\u3092\u51fa\u529b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u308b\u307b\u304b\u3001\u51e6\u7406\u9014\u4e2d\u3067\u3042\u308b\u30b5\u30fc\u30d0\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3057\u307e\u3063\u305f\u3068\u3057\u3066\u3082\u305d\u306e\u51e6\u7406\u3092\u4ed6\u306e\u30b5\u30fc\u30d0\u306b\u518d\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3059\u308b\u3068\u3044\u3046\u969c\u5bb3\u306b\u5bfe\u3059\u308b\u8010\u6027\u3082\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Hadoop\u3067\u306f\u6295\u5165\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306eMap\u30bf\u30b9\u30af\u3001Reduce\u30bf\u30b9\u30af\u306e\u5272\u308a\u632f\u308a\u306f\u30de\u30b9\u30bf\u30fc\u30b5\u30fc\u30d0\u306eJobTracker\u30c7\u30fc\u30e2\u30f3\u304c\u884c\u3044\u3001\u5b9f\u969b\u306eMap\u30bf\u30b9\u30af\u3001Reduce\u30bf\u30b9\u30af\u306e\u5b9f\u884c\u306f\u30b9\u30ec\u30fc\u30d6\u30b5\u30fc\u30d0\u7fa4\u306eTaskTracker\u30c7\u30fc\u30e2\u30f3\u304c\u884c\u3044\u307e\u3059\u3002<\/p>\n<h2>Hadoop\u306e\u9577\u6240\u3068\u77ed\u6240\u3001\u4eca\u5f8c\u306e\u8ab2\u984c<\/h2>\n<p>Hadoop\u306f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u6027\u80fd\u3092\u4e0a\u3052\u308b\u3053\u3068\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u53cd\u9762\u3001\u5de8\u5927\u306a\u30c7\u30fc\u30bf\u306e\u4e2d\u304b\u3089\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u3092\u7d20\u65e9\u304f\u62bd\u51fa\u3057\u305f\u308a\u3001\u5909\u66f4\u3057\u305f\u308a\u3068\u3044\u3063\u305f\u51e6\u7406\u306b\u306f\u5411\u3044\u3066\u3044\u307e\u305b\u3093\u3002\u305d\u306e\u3088\u3046\u306a\u51e6\u7406\u306fRDBMS\u3084KVS\u304c\u5f97\u610f\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001Hadoop\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u305fKVS\u3068\u3057\u3066HBase\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30fc\u30d0\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30d5\u30e9\u306e\u69cb\u6210\u304c\u96e3\u3057\u3044\u3053\u3068\u304c\u4eca\u5f8c\u306e\u8ab2\u984c\u3067\u3059\u3002\u7279\u306b\u3001\u5148\u306b\u8ff0\u3079\u305f\u901a\u308a\u30de\u30b9\u30bf\u30fc\u30b5\u30fc\u30d0\u304c\u5358\u4e00\u969c\u5bb3\u70b9\u3068\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001Hadoop\u4ee5\u5916\u306eDRDB\u3084Heartbeat\u3068\u3044\u3063\u305f\u6280\u8853\u3092\u7528\u3044\u3066HA\u69cb\u6210\u3092\u81ea\u524d\u3067\u6e96\u5099\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001MapReduce\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u958b\u767a\u624b\u6cd5\u304c\u4e00\u822c\u5316\u3057\u3066\u3044\u308b\u3068\u306f\u8a00\u3044\u96e3\u304f\u3001\u7fd2\u5f97\u3084\u6d3b\u7528\u304c\u96e3\u3057\u3044\u3053\u3068\u3082\u554f\u984c\u70b9\u3067\u3059\u3002\u3053\u308c\u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u306b\u3001MapReduce\u306e\u30ed\u30b8\u30c3\u30af\u3092\u3088\u308a\u7c21\u5358\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u306e\u3067\u304d\u308bPig\u3084Hive\u3068\u3044\u3063\u305f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u9032\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hadoop\u3068\u306f Apache Hadoop\u3068\u306f\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u5206\u6563\u51e6\u7406\u3059\u308b\u305f\u3081\u306eJava\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u7c73Google\u304c\u767a\u8868\u3057\u305fMapReduce\u3084Google File System\u306b\u95a2\u3059\u308b\u8ad6\u6587\u306b\u89e6\u767a\u3055\u308c\u3066\u958b\u767a [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[31],"tags":[],"class_list":["post-1926","post","type-post","status-publish","format-standard","hentry","category-higuchi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hadoop\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046 [1] - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3<\/title>\n<meta name=\"description\" content=\"d-higuchi |Hadoop\u3068\u306f Apache\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.creationline.com\/tech-blog\/1926\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hadoop\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046 [1] - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\" \/>\n<meta property=\"og:description\" content=\"d-higuchi |Hadoop\u3068\u306f Apache\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.creationline.com\/tech-blog\/1926\" \/>\n<meta property=\"og:site_name\" content=\"Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/creationline\" \/>\n<meta property=\"article:published_time\" content=\"2012-06-16T02:19:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-29T02:08:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2026\/01\/screenshot.png\" \/>\n\t<meta property=\"og:image:width\" content=\"470\" \/>\n\t<meta property=\"og:image:height\" content=\"394\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Daisuke Higuchi\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@creationline\" \/>\n<meta name=\"twitter:site\" content=\"@creationline\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Daisuke Higuchi\" \/>\n<script type=\"application\/ld+json\" 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