{"id":121534,"date":"2024-03-24T02:53:02","date_gmt":"2024-03-23T17:53:02","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/hadoop-%e8%a1%8c%e6%95%b0%e3%82%92%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88\/"},"modified":"2024-03-27T00:13:42","modified_gmt":"2024-03-26T15:13:42","slug":"hadoop-%e8%a1%8c%e6%95%b0%e3%82%92%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/hadoop-%e8%a1%8c%e6%95%b0%e3%82%92%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88\/","title":{"rendered":"hadoop \u884c\u6570\u3092\u30ab\u30a6\u30f3\u30c8"},"content":{"rendered":"<p>Hadoop\u4e0a\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u884c\u6570\u3092\u8abf\u3079\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n<p>hdfs dfs -cat \u30b3\u30de\u30f3\u30c9\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u6a19\u6e96\u51fa\u529b\u306b\u51fa\u529b\u3057\u3001\u30d1\u30a4\u30d7\u8a18\u53f7\uff08|\uff09\u3067\u305d\u306e\u7d50\u679c\u3092 wc -l \u30b3\u30de\u30f3\u30c9\u306b\u6e21\u3057\u3066\u884c\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b<\/p>\n<pre class=\"post-pre\">hdfs\u00a0dfs\u00a0-cat\u00a0&lt;file&gt;\u00a0|\u00a0wc\u00a0-l<\/pre>\n<p>\u3092\u3001\u884c\u6570\u3092\u8868\u793a\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u306b\u7f6e\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001\/user\/myuser\/example.txt\u306e\u884c\u6570\u3092\u8868\u793a\u3057\u305f\u3044\u5834\u5408\u3001hdfs dfs -cat \/user\/myuser\/example.txt | wc -l\u306a\u3069\u3068\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092HDFS\u304b\u3089\u30ed\u30fc\u30ab\u30eb\u306b\u8aad\u307f\u8fbc\u307f\u3001\u30d1\u30a4\u30d7\u3092\u4f7f\u7528\u3057\u3066\u884c\u6570\u3092\u6570\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u975e\u5e38\u306b\u5927\u304d\u3044\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30e1\u30e2\u30ea\u306b\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u65b9\u6cd5\u306f\u9069\u3055\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u51fa\u529b\u305b\u305a\u306b\u5358\u306b\u30d5\u30a1\u30a4\u30eb\u306e\u5408\u8a08\u884c\u6570\u60c5\u5831\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001hdfs dfs -count \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u306e\u884c\u6570\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\uff1a<\/p>\n<pre class=\"post-pre\">hdfs\u00a0dfs\u00a0-count\u00a0-q\u00a0-h\u00a0-v\u00a0&lt;file&gt;\u00a0|\u00a0awk\u00a0'{print\u00a0$2}'<\/pre>\n<p>\u3092\u884c\u6570\u3092\u8abf\u3079\u305f\u3044\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306b\u7f6e\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001\/user\/myuser\/example.txt \u306e\u884c\u6570\u60c5\u5831\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f hdfs dfs -count -q -h -v \/user\/myuser\/example.txt | awk &#8216;{print $2}&#8217; \u3092\u5b9f\u884c\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u5168\u4f53\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u306a\u304f\u3001HDFS\u30e1\u30bf\u30c7\u30fc\u30bf\u304b\u3089\u884c\u6570\u306e\u60c5\u5831\u3092\u76f4\u63a5\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u64cd\u4f5c\u3092\u884c\u3046\u3053\u3068\u3067\u3001Hadoop\u30af\u30e9\u30b9\u30bf\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u884c\u6570\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hadoop\u4e0a\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u884c\u6570\u3092\u8abf\u3079\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\uff1a hdfs dfs -cat \u30b3\u30de\u30f3\u30c9\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u6a19\u6e96\u51fa\u529b\u306b\u51fa\u529b\u3057\u3001\u30d1\u30a4\u30d7\u8a18\u53f7\uff08|\uff09\u3067\u305d\u306e\u7d50\u679c\u3092 wc -l \u30b3\u30de\u30f3\u30c9\u306b\u6e21\u3057\u3066\u884c [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-121534","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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