![\"\"](\"http:\/\/mapleleaf666.vip\/wp-content\/uploads\/2023\/03\/xdjckhD8L76lAHz.png\")
<\/div><\/figure>\n\n\n\n\u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a\u6570\u76ee\u7684Datanode\u7ec4\u6210\u3002Namenode\u662f\u4e00\u4e2a\u4e2d\u5fc3\u670d\u52a1\u5668\uff0c\u8d1f\u8d23\u7ba1\u7406\u6587\u4ef6\u7cfb\u7edf\u7684namespace\u548c\u5ba2\u6237\u7aef\u5bf9\u6587\u4ef6\u7684\u8bbf\u95ee\u3002Datanode\u5728\u96c6\u7fa4\u4e2d\u4e00\u822c\u662f\u4e00\u4e2a\u8282\u70b9\u4e00\u4e2a\uff0c\u8d1f\u8d23\u7ba1\u7406\u8282\u70b9\u4e0a\u5b83\u4eec\u9644\u5e26\u7684\u5b58\u50a8\u3002\u5728\u5185\u90e8\uff0c\u4e00\u4e2a\u6587\u4ef6\u5176\u5b9e\u5206\u6210\u4e00\u4e2a\u6216\u591a\u4e2ablock\uff0c\u8fd9\u4e9bblock\u5b58\u50a8\u5728Datanode\u96c6\u5408\u91cc\u3002Namenode\u6267\u884c\u6587\u4ef6\u7cfb\u7edf\u7684namespace\u64cd\u4f5c\uff0c\u4f8b\u5982\u6253\u5f00\u3001\u5173\u95ed\u3001\u91cd\u547d\u540d\u6587\u4ef6\u548c\u76ee\u5f55\uff0c\u540c\u65f6\u51b3\u5b9ablock\u5230\u5177\u4f53Datanode\u8282\u70b9\u7684\u6620\u5c04\u3002Datanode\u5728Namenode\u7684\u6307\u6325\u4e0b\u8fdb\u884cblock\u7684\u521b\u5efa\u3001\u5220\u9664\u548c\u590d\u5236\u3002<\/p>\n\n\n\n
\u4e2a\u4eba\u4f53\u4f1a\u5230\u7684HDFS\u7684\u7279\u6027\uff1a<\/h2>\n\n\n\n\n- \u9002\u5408\u8d85\u5927\u6587\u4ef6\u5b58\u50a8\uff1a\u5177\u6709\u51e0\u767eMB\u3001\u51e0\u767eGB\u751a\u81f3\u51e0\u767eTB\u5927\u5c0f\u7684\u6587\u4ef6\uff0c\u4f46\u4e0d\u9002\u5408\u5c0f\u6587\u4ef6\u5b58\u50a8\uff08\u5360\u7528namenode\uff09<\/li>\n\n\n\n
- \u8981\u6c42\u4f4e\u65f6\u95f4\u5ef6\u8fdf\u6570\u636e\u8bbf\u95ee\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u51e0\u5341\u6beb\u79d2\u8303\u56f4\uff0c\u4e0d\u9002\u5408\u5728HDFS\u4e0a\u8fd0\u884c\u3002HDFS\u662f\u4e3a\u9ad8\u6570\u636e\u541e\u5410\u91cf\u5e94\u7528\u4f18\u5316\u7684\uff0c\u8fd9\u53ef\u80fd\u4f1a\u4ee5\u63d0\u9ad8\u65f6\u95f4\u5ef6\u8fdf\u4e3a\u4ee3\u4ef7\u3002<\/li>\n\n\n\n
- \u5bb9\u9519\u6027\u8f83\u9ad8\uff0c\u6570\u636e\u6709\u591a\u4e2a\u526f\u672c<\/li>\n\n\n\n
- \u4f4e\u6210\u672c\uff0c\u786c\u4ef6\u8981\u6c42\u4f4e\uff084\u53f0\u865a\u62df\u673a\u90fd\u53ef\u4ee5\u6a21\u62df\u5373\u53ef\u770b\u51fa\uff09<\/li>\n\n\n\n
- \u5728\u8282\u70b9\u95f4\u80fd\u52a8\u6001\u5730\u79fb\u52a8\u6570\u636e\uff0c\u5e76\u4fdd\u8bc1\u5404\u4e2a\u8282\u70b9\u7684\u52a8\u6001\u5e73\u8861<\/li>\n<\/ul>\n\n\n\n
\u542f\u52a8hadoop\u540e\u7684\u51e0\u4e2a\u8282\u70b9\uff1a<\/h2>\n\n\n\n\n- NameNode\uff1a\u7ba1\u7406\u6587\u4ef6\u7cfb\u7edf\u7684\u547d\u540d\u7a7a\u95f4\u3002\u5b83\u7ef4\u62a4\u7740\u6587\u4ef6\u7cfb\u7edf\u6811\u53ca\u6574\u68f5\u6811\u5185\u6240\u6709\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u3002<\/li>\n\n\n\n
- SecondaryNamenode\uff1a\u5b83\u4e0d\u63d0\u4f9bNameNode\u670d\u52a1\uff0c\u800c\u4ec5\u4ec5\u662fNameNode\u7684\u4e00\u4e2a\u5de5\u5177\uff0c\u8fd9\u4e2a\u5de5\u5177\u5e2e\u52a9NameNode\u7ba1\u7406\u5143\u6570\u636e\u4fe1\u606f<\/li>\n\n\n\n
- DataNode\uff1a\u662f\u6587\u4ef6\u7cfb\u7edf\u7684\u5de5\u4f5c\u8282\u70b9\u3002\u5b83\u4eec\u6839\u636e\u9700\u8981\u5b58\u50a8\u5e76\u68c0\u7d22\u6570\u636e\u5757\uff08\u53d7\u5ba2\u6237\u7aef\u6216NameNode\u8c03\u5ea6\uff09\uff0c\u5e76\u4e14\u5b9a\u671f\u5411NameNode\u53d1\u9001\u5b83\u4eec\u6240\u5b58\u50a8\u7684\u5757\u7684\u5217\u8868\u3002<\/li>\n<\/ul>\n\n\n\n
hadoop\u8bfb\u6570\u636e<\/h2>\n\n\n\n![\"\"](\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\")
<\/div><\/figure>\n\n\n\nhadoop\u5199\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\n\u5b9e\u9a8c\u6d41\u7a0b<\/h1>\n\n\n\n
\u542f\u52a8hadoop\uff0c\u53ef\u7528\u7684\u7ba1\u7406\u9875\u9762\u6709\uff1a<\/p>\n\n\n\n
\n- hadoop\u7ba1\u7406\u9875\u9762\uff1ahttp:\/\/master:50070\/<\/a><\/li>\n\n\n\n
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n
1.\u68c0\u9a8c\u6587\u4ef6\u4e0a\u4f20\u4e0b\u8f7d<\/h2>\n\n\n\n\/\/\u5728Master\u8fdb\u884c\n\/\/\u5148\u8fdb\u884c\u6587\u4ef6\u7684\u521b\u5efa\necho test > test.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u6587\u4ef6\u4e0a\u4f20\nhadoop fs -put test.txt \/itcast\n\n\/\/\u5728Slave1\u8fdb\u884c\n\/\/\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/itcast\/test.txt <\/code><\/pre>\n\n\n\n2.\u68c0\u9a8c\u6587\u4ef6\u4e00\u81f4\u6027\u7279\u6027<\/h2>\n\n\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\n\/\/\u521b\u5efa\u6587\u4ef6\necho 1111 > new_1.txt\necho 22222yeah > new_2.txt\necho 3333haha > new_3.txt\nhadoop fs -put new_1.txt \/\n\n\/\/\u5728\u5176\u4ed6\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\u6587\u4ef6\u6570\u636e\u8ffd\u52a0\nhadoop fs -appendToFile new_2.txt new_3.txt \/new_1.txt\n\n\/\/\u5728\u5404\u4e2a\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt<\/code><\/pre>\n\n\n\n3.\u6587\u4ef6\u5206\u5757\u4e0e\u5907\u4efd<\/h2>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b\u7ba1\u7406\u9875\u9762\u4e86\u89e3\u3002<\/p>\n\n\n\n
hadoop\u5907\u4efd\u7684\u662f\u6570\u636e\u5757(\u5c31\u662f\u5c06\u6bcf\u4e2a\u6587\u4ef6\u5206\u5272\u4e3a128M\u5927\u5c0f\u7684\u6570\u636e\u5757,\u4e0d\u591f\u7684\u6309128M\u8fdb\u884c\u5b58\u50a8)\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd\uff0c\u7136\u540e\u5b58\u653e\u5230\u5b50\u8282\u70b9\u4e0a(\u5e76\u4e14\u6bcf\u4e2a\u5b50\u8282\u70b9\u4e0a\u5b58\u653e\u7684\u4e0d\u4f1a\u662f\u540c\u4e00\u4e2a\u6570\u636e\u5757)\u3002<\/p>\n\n\n\n
\u5047\u5982\u5907\u4efd\u6570\u4e3a3\u4efd,\u5c31\u4f1a\u628a\u6587\u4ef6\u5206\u5272\u540e\u7684\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd,\u5b58\u653e\u5230\u4e0d\u540c\u7684\u5b50\u8282\u70b9\u4e0a,\u5f53\u4e00\u4e2a\u5b50\u8282\u70b9\u51fa\u73b0\u5f02\u5e38,\u5c31\u4f1a\u901a\u8fc7\u53cd\u9988\u673a\u5236\u5c06\u4fe1\u606f\u53cd\u9988\u7ed9\u4e3b\u8282\u70b9,\u4e3b\u8282\u70b9\u5c31\u4f1a\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u6570\u636e\u5757\u8fdb\u884c\u91cd\u65b0\u5907\u4efd\u5b58\u653e\u5230\u5176\u4ed6\u5b50\u8282\u70b9\u4e0a,\u4f7f\u5f97\u6570\u636e\u5757\u7684\u5907\u4efd\u6570\u4fdd\u6301\u5728\u81ea\u5b9a\u4e49\u6570\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u4e22\u5931,\u4f53\u73b0\u4e86hadoop\u7684\u5bb9\u9519\u6027\u3002<\/p>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\u603b\u7ed3<\/h1>\n\n\n\n\/\/\u6253\u5370\u6587\u4ef6\u7cfb\u7edf\u6240\u6709\u6587\u4ef6\nhadoop fs -ls \/\n\n\/\/\u521b\u5efa\u6587\u4ef6\nhadoop fs -touch \/file.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0a\u4f20\u6587\u4ef6\u5230\u7cfb\u7edf\nhadoop fs -put test.txt \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/README.txt .\/\n\n\/\/\u6570\u636e\u79fb\u52a8\nhadoop fs -mv <src> ... <dst>\n\n\/\/\u8ffd\u52a0\u6570\u636e\nhadoop fs -appendToFile 2.txt 3.txt \/1.txt\n\n\/\/\u8bfb\u53d6\u6587\u4ef6\nhadoop fs -cat \/itcast\/test\n\n\/\/\u5220\u9664\u6587\u4ef6\nhadoop fs -rm -r \/file.txt<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"hadoop\u67b6\u6784 \u5728\u81ea\u5236\u7684\u7cfb\u7edf\u4e2d\uff0chadoop\u7684\u5f62\u5f0f\u5982\u4e0b\u6240\u793a: \u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a […]<\/p>\n","protected":false},"author":1,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[25,20],"class_list":["post-191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note","tag-hadoop","tag-big-data"],"_links":{"self":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":2,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":198,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u542f\u52a8hadoop\u540e\u7684\u51e0\u4e2a\u8282\u70b9\uff1a<\/h2>\n\n\n\n\n- NameNode\uff1a\u7ba1\u7406\u6587\u4ef6\u7cfb\u7edf\u7684\u547d\u540d\u7a7a\u95f4\u3002\u5b83\u7ef4\u62a4\u7740\u6587\u4ef6\u7cfb\u7edf\u6811\u53ca\u6574\u68f5\u6811\u5185\u6240\u6709\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u3002<\/li>\n\n\n\n
- SecondaryNamenode\uff1a\u5b83\u4e0d\u63d0\u4f9bNameNode\u670d\u52a1\uff0c\u800c\u4ec5\u4ec5\u662fNameNode\u7684\u4e00\u4e2a\u5de5\u5177\uff0c\u8fd9\u4e2a\u5de5\u5177\u5e2e\u52a9NameNode\u7ba1\u7406\u5143\u6570\u636e\u4fe1\u606f<\/li>\n\n\n\n
- DataNode\uff1a\u662f\u6587\u4ef6\u7cfb\u7edf\u7684\u5de5\u4f5c\u8282\u70b9\u3002\u5b83\u4eec\u6839\u636e\u9700\u8981\u5b58\u50a8\u5e76\u68c0\u7d22\u6570\u636e\u5757\uff08\u53d7\u5ba2\u6237\u7aef\u6216NameNode\u8c03\u5ea6\uff09\uff0c\u5e76\u4e14\u5b9a\u671f\u5411NameNode\u53d1\u9001\u5b83\u4eec\u6240\u5b58\u50a8\u7684\u5757\u7684\u5217\u8868\u3002<\/li>\n<\/ul>\n\n\n\n
hadoop\u8bfb\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\nhadoop\u5199\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\n\u5b9e\u9a8c\u6d41\u7a0b<\/h1>\n\n\n\n
\u542f\u52a8hadoop\uff0c\u53ef\u7528\u7684\u7ba1\u7406\u9875\u9762\u6709\uff1a<\/p>\n\n\n\n
\n- hadoop\u7ba1\u7406\u9875\u9762\uff1ahttp:\/\/master:50070\/<\/a><\/li>\n\n\n\n
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n
1.\u68c0\u9a8c\u6587\u4ef6\u4e0a\u4f20\u4e0b\u8f7d<\/h2>\n\n\n\n\/\/\u5728Master\u8fdb\u884c\n\/\/\u5148\u8fdb\u884c\u6587\u4ef6\u7684\u521b\u5efa\necho test > test.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u6587\u4ef6\u4e0a\u4f20\nhadoop fs -put test.txt \/itcast\n\n\/\/\u5728Slave1\u8fdb\u884c\n\/\/\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/itcast\/test.txt <\/code><\/pre>\n\n\n\n2.\u68c0\u9a8c\u6587\u4ef6\u4e00\u81f4\u6027\u7279\u6027<\/h2>\n\n\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\n\/\/\u521b\u5efa\u6587\u4ef6\necho 1111 > new_1.txt\necho 22222yeah > new_2.txt\necho 3333haha > new_3.txt\nhadoop fs -put new_1.txt \/\n\n\/\/\u5728\u5176\u4ed6\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\u6587\u4ef6\u6570\u636e\u8ffd\u52a0\nhadoop fs -appendToFile new_2.txt new_3.txt \/new_1.txt\n\n\/\/\u5728\u5404\u4e2a\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt<\/code><\/pre>\n\n\n\n3.\u6587\u4ef6\u5206\u5757\u4e0e\u5907\u4efd<\/h2>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b\u7ba1\u7406\u9875\u9762\u4e86\u89e3\u3002<\/p>\n\n\n\n
hadoop\u5907\u4efd\u7684\u662f\u6570\u636e\u5757(\u5c31\u662f\u5c06\u6bcf\u4e2a\u6587\u4ef6\u5206\u5272\u4e3a128M\u5927\u5c0f\u7684\u6570\u636e\u5757,\u4e0d\u591f\u7684\u6309128M\u8fdb\u884c\u5b58\u50a8)\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd\uff0c\u7136\u540e\u5b58\u653e\u5230\u5b50\u8282\u70b9\u4e0a(\u5e76\u4e14\u6bcf\u4e2a\u5b50\u8282\u70b9\u4e0a\u5b58\u653e\u7684\u4e0d\u4f1a\u662f\u540c\u4e00\u4e2a\u6570\u636e\u5757)\u3002<\/p>\n\n\n\n
\u5047\u5982\u5907\u4efd\u6570\u4e3a3\u4efd,\u5c31\u4f1a\u628a\u6587\u4ef6\u5206\u5272\u540e\u7684\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd,\u5b58\u653e\u5230\u4e0d\u540c\u7684\u5b50\u8282\u70b9\u4e0a,\u5f53\u4e00\u4e2a\u5b50\u8282\u70b9\u51fa\u73b0\u5f02\u5e38,\u5c31\u4f1a\u901a\u8fc7\u53cd\u9988\u673a\u5236\u5c06\u4fe1\u606f\u53cd\u9988\u7ed9\u4e3b\u8282\u70b9,\u4e3b\u8282\u70b9\u5c31\u4f1a\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u6570\u636e\u5757\u8fdb\u884c\u91cd\u65b0\u5907\u4efd\u5b58\u653e\u5230\u5176\u4ed6\u5b50\u8282\u70b9\u4e0a,\u4f7f\u5f97\u6570\u636e\u5757\u7684\u5907\u4efd\u6570\u4fdd\u6301\u5728\u81ea\u5b9a\u4e49\u6570\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u4e22\u5931,\u4f53\u73b0\u4e86hadoop\u7684\u5bb9\u9519\u6027\u3002<\/p>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\u603b\u7ed3<\/h1>\n\n\n\n\/\/\u6253\u5370\u6587\u4ef6\u7cfb\u7edf\u6240\u6709\u6587\u4ef6\nhadoop fs -ls \/\n\n\/\/\u521b\u5efa\u6587\u4ef6\nhadoop fs -touch \/file.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0a\u4f20\u6587\u4ef6\u5230\u7cfb\u7edf\nhadoop fs -put test.txt \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/README.txt .\/\n\n\/\/\u6570\u636e\u79fb\u52a8\nhadoop fs -mv <src> ... <dst>\n\n\/\/\u8ffd\u52a0\u6570\u636e\nhadoop fs -appendToFile 2.txt 3.txt \/1.txt\n\n\/\/\u8bfb\u53d6\u6587\u4ef6\nhadoop fs -cat \/itcast\/test\n\n\/\/\u5220\u9664\u6587\u4ef6\nhadoop fs -rm -r \/file.txt<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"hadoop\u67b6\u6784 \u5728\u81ea\u5236\u7684\u7cfb\u7edf\u4e2d\uff0chadoop\u7684\u5f62\u5f0f\u5982\u4e0b\u6240\u793a: \u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a […]<\/p>\n","protected":false},"author":1,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[25,20],"class_list":["post-191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note","tag-hadoop","tag-big-data"],"_links":{"self":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":2,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":198,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
hadoop\u8bfb\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\nhadoop\u5199\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\n\u5b9e\u9a8c\u6d41\u7a0b<\/h1>\n\n\n\n
\u542f\u52a8hadoop\uff0c\u53ef\u7528\u7684\u7ba1\u7406\u9875\u9762\u6709\uff1a<\/p>\n\n\n\n
\n- hadoop\u7ba1\u7406\u9875\u9762\uff1ahttp:\/\/master:50070\/<\/a><\/li>\n\n\n\n
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n
1.\u68c0\u9a8c\u6587\u4ef6\u4e0a\u4f20\u4e0b\u8f7d<\/h2>\n\n\n\n\/\/\u5728Master\u8fdb\u884c\n\/\/\u5148\u8fdb\u884c\u6587\u4ef6\u7684\u521b\u5efa\necho test > test.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u6587\u4ef6\u4e0a\u4f20\nhadoop fs -put test.txt \/itcast\n\n\/\/\u5728Slave1\u8fdb\u884c\n\/\/\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/itcast\/test.txt <\/code><\/pre>\n\n\n\n2.\u68c0\u9a8c\u6587\u4ef6\u4e00\u81f4\u6027\u7279\u6027<\/h2>\n\n\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\n\/\/\u521b\u5efa\u6587\u4ef6\necho 1111 > new_1.txt\necho 22222yeah > new_2.txt\necho 3333haha > new_3.txt\nhadoop fs -put new_1.txt \/\n\n\/\/\u5728\u5176\u4ed6\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\u6587\u4ef6\u6570\u636e\u8ffd\u52a0\nhadoop fs -appendToFile new_2.txt new_3.txt \/new_1.txt\n\n\/\/\u5728\u5404\u4e2a\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt<\/code><\/pre>\n\n\n\n3.\u6587\u4ef6\u5206\u5757\u4e0e\u5907\u4efd<\/h2>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b\u7ba1\u7406\u9875\u9762\u4e86\u89e3\u3002<\/p>\n\n\n\n
hadoop\u5907\u4efd\u7684\u662f\u6570\u636e\u5757(\u5c31\u662f\u5c06\u6bcf\u4e2a\u6587\u4ef6\u5206\u5272\u4e3a128M\u5927\u5c0f\u7684\u6570\u636e\u5757,\u4e0d\u591f\u7684\u6309128M\u8fdb\u884c\u5b58\u50a8)\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd\uff0c\u7136\u540e\u5b58\u653e\u5230\u5b50\u8282\u70b9\u4e0a(\u5e76\u4e14\u6bcf\u4e2a\u5b50\u8282\u70b9\u4e0a\u5b58\u653e\u7684\u4e0d\u4f1a\u662f\u540c\u4e00\u4e2a\u6570\u636e\u5757)\u3002<\/p>\n\n\n\n
\u5047\u5982\u5907\u4efd\u6570\u4e3a3\u4efd,\u5c31\u4f1a\u628a\u6587\u4ef6\u5206\u5272\u540e\u7684\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd,\u5b58\u653e\u5230\u4e0d\u540c\u7684\u5b50\u8282\u70b9\u4e0a,\u5f53\u4e00\u4e2a\u5b50\u8282\u70b9\u51fa\u73b0\u5f02\u5e38,\u5c31\u4f1a\u901a\u8fc7\u53cd\u9988\u673a\u5236\u5c06\u4fe1\u606f\u53cd\u9988\u7ed9\u4e3b\u8282\u70b9,\u4e3b\u8282\u70b9\u5c31\u4f1a\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u6570\u636e\u5757\u8fdb\u884c\u91cd\u65b0\u5907\u4efd\u5b58\u653e\u5230\u5176\u4ed6\u5b50\u8282\u70b9\u4e0a,\u4f7f\u5f97\u6570\u636e\u5757\u7684\u5907\u4efd\u6570\u4fdd\u6301\u5728\u81ea\u5b9a\u4e49\u6570\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u4e22\u5931,\u4f53\u73b0\u4e86hadoop\u7684\u5bb9\u9519\u6027\u3002<\/p>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\u603b\u7ed3<\/h1>\n\n\n\n\/\/\u6253\u5370\u6587\u4ef6\u7cfb\u7edf\u6240\u6709\u6587\u4ef6\nhadoop fs -ls \/\n\n\/\/\u521b\u5efa\u6587\u4ef6\nhadoop fs -touch \/file.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0a\u4f20\u6587\u4ef6\u5230\u7cfb\u7edf\nhadoop fs -put test.txt \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/README.txt .\/\n\n\/\/\u6570\u636e\u79fb\u52a8\nhadoop fs -mv <src> ... <dst>\n\n\/\/\u8ffd\u52a0\u6570\u636e\nhadoop fs -appendToFile 2.txt 3.txt \/1.txt\n\n\/\/\u8bfb\u53d6\u6587\u4ef6\nhadoop fs -cat \/itcast\/test\n\n\/\/\u5220\u9664\u6587\u4ef6\nhadoop fs -rm -r \/file.txt<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"hadoop\u67b6\u6784 \u5728\u81ea\u5236\u7684\u7cfb\u7edf\u4e2d\uff0chadoop\u7684\u5f62\u5f0f\u5982\u4e0b\u6240\u793a: \u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a […]<\/p>\n","protected":false},"author":1,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[25,20],"class_list":["post-191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note","tag-hadoop","tag-big-data"],"_links":{"self":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":2,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":198,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"http:\/\/mapleleaf666.vip\/wp-content\/uploads\/2023\/03\/r6XF9YWcZMiEkU1.png\")
<\/div><\/figure>\n\n\n\nhadoop\u5199\u6570\u636e<\/h2>\n\n\n\n<\/div><\/figure>\n\n\n\n\u5b9e\u9a8c\u6d41\u7a0b<\/h1>\n\n\n\n
\u542f\u52a8hadoop\uff0c\u53ef\u7528\u7684\u7ba1\u7406\u9875\u9762\u6709\uff1a<\/p>\n\n\n\n
\n- hadoop\u7ba1\u7406\u9875\u9762\uff1ahttp:\/\/master:50070\/<\/a><\/li>\n\n\n\n
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n
1.\u68c0\u9a8c\u6587\u4ef6\u4e0a\u4f20\u4e0b\u8f7d<\/h2>\n\n\n\n\/\/\u5728Master\u8fdb\u884c\n\/\/\u5148\u8fdb\u884c\u6587\u4ef6\u7684\u521b\u5efa\necho test > test.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u6587\u4ef6\u4e0a\u4f20\nhadoop fs -put test.txt \/itcast\n\n\/\/\u5728Slave1\u8fdb\u884c\n\/\/\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/itcast\/test.txt <\/code><\/pre>\n\n\n\n2.\u68c0\u9a8c\u6587\u4ef6\u4e00\u81f4\u6027\u7279\u6027<\/h2>\n\n\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\n\/\/\u521b\u5efa\u6587\u4ef6\necho 1111 > new_1.txt\necho 22222yeah > new_2.txt\necho 3333haha > new_3.txt\nhadoop fs -put new_1.txt \/\n\n\/\/\u5728\u5176\u4ed6\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\u6587\u4ef6\u6570\u636e\u8ffd\u52a0\nhadoop fs -appendToFile new_2.txt new_3.txt \/new_1.txt\n\n\/\/\u5728\u5404\u4e2a\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt<\/code><\/pre>\n\n\n\n3.\u6587\u4ef6\u5206\u5757\u4e0e\u5907\u4efd<\/h2>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b\u7ba1\u7406\u9875\u9762\u4e86\u89e3\u3002<\/p>\n\n\n\n
hadoop\u5907\u4efd\u7684\u662f\u6570\u636e\u5757(\u5c31\u662f\u5c06\u6bcf\u4e2a\u6587\u4ef6\u5206\u5272\u4e3a128M\u5927\u5c0f\u7684\u6570\u636e\u5757,\u4e0d\u591f\u7684\u6309128M\u8fdb\u884c\u5b58\u50a8)\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd\uff0c\u7136\u540e\u5b58\u653e\u5230\u5b50\u8282\u70b9\u4e0a(\u5e76\u4e14\u6bcf\u4e2a\u5b50\u8282\u70b9\u4e0a\u5b58\u653e\u7684\u4e0d\u4f1a\u662f\u540c\u4e00\u4e2a\u6570\u636e\u5757)\u3002<\/p>\n\n\n\n
\u5047\u5982\u5907\u4efd\u6570\u4e3a3\u4efd,\u5c31\u4f1a\u628a\u6587\u4ef6\u5206\u5272\u540e\u7684\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd,\u5b58\u653e\u5230\u4e0d\u540c\u7684\u5b50\u8282\u70b9\u4e0a,\u5f53\u4e00\u4e2a\u5b50\u8282\u70b9\u51fa\u73b0\u5f02\u5e38,\u5c31\u4f1a\u901a\u8fc7\u53cd\u9988\u673a\u5236\u5c06\u4fe1\u606f\u53cd\u9988\u7ed9\u4e3b\u8282\u70b9,\u4e3b\u8282\u70b9\u5c31\u4f1a\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u6570\u636e\u5757\u8fdb\u884c\u91cd\u65b0\u5907\u4efd\u5b58\u653e\u5230\u5176\u4ed6\u5b50\u8282\u70b9\u4e0a,\u4f7f\u5f97\u6570\u636e\u5757\u7684\u5907\u4efd\u6570\u4fdd\u6301\u5728\u81ea\u5b9a\u4e49\u6570\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u4e22\u5931,\u4f53\u73b0\u4e86hadoop\u7684\u5bb9\u9519\u6027\u3002<\/p>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\u603b\u7ed3<\/h1>\n\n\n\n\/\/\u6253\u5370\u6587\u4ef6\u7cfb\u7edf\u6240\u6709\u6587\u4ef6\nhadoop fs -ls \/\n\n\/\/\u521b\u5efa\u6587\u4ef6\nhadoop fs -touch \/file.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0a\u4f20\u6587\u4ef6\u5230\u7cfb\u7edf\nhadoop fs -put test.txt \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/README.txt .\/\n\n\/\/\u6570\u636e\u79fb\u52a8\nhadoop fs -mv <src> ... <dst>\n\n\/\/\u8ffd\u52a0\u6570\u636e\nhadoop fs -appendToFile 2.txt 3.txt \/1.txt\n\n\/\/\u8bfb\u53d6\u6587\u4ef6\nhadoop fs -cat \/itcast\/test\n\n\/\/\u5220\u9664\u6587\u4ef6\nhadoop fs -rm -r \/file.txt<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"hadoop\u67b6\u6784 \u5728\u81ea\u5236\u7684\u7cfb\u7edf\u4e2d\uff0chadoop\u7684\u5f62\u5f0f\u5982\u4e0b\u6240\u793a: \u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a […]<\/p>\n","protected":false},"author":1,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[25,20],"class_list":["post-191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note","tag-hadoop","tag-big-data"],"_links":{"self":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":2,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":198,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"http:\/\/mapleleaf666.vip\/wp-content\/uploads\/2023\/03\/4vpPRyAqoONetUY.png\")
<\/div><\/figure>\n\n\n\n\u5b9e\u9a8c\u6d41\u7a0b<\/h1>\n\n\n\n
\u542f\u52a8hadoop\uff0c\u53ef\u7528\u7684\u7ba1\u7406\u9875\u9762\u6709\uff1a<\/p>\n\n\n\n
- \n
- hadoop\u7ba1\u7406\u9875\u9762\uff1ahttp:\/\/master:50070\/<\/a><\/li>\n\n\n\n
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n
1.\u68c0\u9a8c\u6587\u4ef6\u4e0a\u4f20\u4e0b\u8f7d<\/h2>\n\n\n\n
\/\/\u5728Master\u8fdb\u884c\n\/\/\u5148\u8fdb\u884c\u6587\u4ef6\u7684\u521b\u5efa\necho test > test.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u6587\u4ef6\u4e0a\u4f20\nhadoop fs -put test.txt \/itcast\n\n\/\/\u5728Slave1\u8fdb\u884c\n\/\/\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/itcast\/test.txt <\/code><\/pre>\n\n\n\n2.\u68c0\u9a8c\u6587\u4ef6\u4e00\u81f4\u6027\u7279\u6027<\/h2>\n\n\n\n
\/\/\u5728Master\u4e0a\u8fdb\u884c\n\/\/\u521b\u5efa\u6587\u4ef6\necho 1111 > new_1.txt\necho 22222yeah > new_2.txt\necho 3333haha > new_3.txt\nhadoop fs -put new_1.txt \/\n\n\/\/\u5728\u5176\u4ed6\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt\n\n\/\/\u5728Master\u4e0a\u8fdb\u884c\u6587\u4ef6\u6570\u636e\u8ffd\u52a0\nhadoop fs -appendToFile new_2.txt new_3.txt \/new_1.txt\n\n\/\/\u5728\u5404\u4e2a\u8282\u70b9\u67e5\u770b\nhadoop fs -cat \/new_1.txt<\/code><\/pre>\n\n\n\n3.\u6587\u4ef6\u5206\u5757\u4e0e\u5907\u4efd<\/h2>\n\n\n\n
\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b\u7ba1\u7406\u9875\u9762\u4e86\u89e3\u3002<\/p>\n\n\n\n
hadoop\u5907\u4efd\u7684\u662f\u6570\u636e\u5757(\u5c31\u662f\u5c06\u6bcf\u4e2a\u6587\u4ef6\u5206\u5272\u4e3a128M\u5927\u5c0f\u7684\u6570\u636e\u5757,\u4e0d\u591f\u7684\u6309128M\u8fdb\u884c\u5b58\u50a8)\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd\uff0c\u7136\u540e\u5b58\u653e\u5230\u5b50\u8282\u70b9\u4e0a(\u5e76\u4e14\u6bcf\u4e2a\u5b50\u8282\u70b9\u4e0a\u5b58\u653e\u7684\u4e0d\u4f1a\u662f\u540c\u4e00\u4e2a\u6570\u636e\u5757)\u3002<\/p>\n\n\n\n
\u5047\u5982\u5907\u4efd\u6570\u4e3a3\u4efd,\u5c31\u4f1a\u628a\u6587\u4ef6\u5206\u5272\u540e\u7684\u6bcf\u4e2a\u6570\u636e\u5757\u8fdb\u884c\u5907\u4efd,\u5b58\u653e\u5230\u4e0d\u540c\u7684\u5b50\u8282\u70b9\u4e0a,\u5f53\u4e00\u4e2a\u5b50\u8282\u70b9\u51fa\u73b0\u5f02\u5e38,\u5c31\u4f1a\u901a\u8fc7\u53cd\u9988\u673a\u5236\u5c06\u4fe1\u606f\u53cd\u9988\u7ed9\u4e3b\u8282\u70b9,\u4e3b\u8282\u70b9\u5c31\u4f1a\u5c06\u8be5\u8282\u70b9\u4e0a\u7684\u6570\u636e\u5757\u8fdb\u884c\u91cd\u65b0\u5907\u4efd\u5b58\u653e\u5230\u5176\u4ed6\u5b50\u8282\u70b9\u4e0a,\u4f7f\u5f97\u6570\u636e\u5757\u7684\u5907\u4efd\u6570\u4fdd\u6301\u5728\u81ea\u5b9a\u4e49\u6570\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e0d\u4f1a\u4e22\u5931,\u4f53\u73b0\u4e86hadoop\u7684\u5bb9\u9519\u6027\u3002<\/p>\n\n\n\n
\u5e38\u7528\u547d\u4ee4\u603b\u7ed3<\/h1>\n\n\n\n
\/\/\u6253\u5370\u6587\u4ef6\u7cfb\u7edf\u6240\u6709\u6587\u4ef6\nhadoop fs -ls \/\n\n\/\/\u521b\u5efa\u6587\u4ef6\nhadoop fs -touch \/file.txt\n\n\/\/\u521b\u5efa\u6587\u4ef6\u5939\nhadoop fs -mkdir \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0a\u4f20\u6587\u4ef6\u5230\u7cfb\u7edf\nhadoop fs -put test.txt \/itcast\n\n\/\/\u4ece\u8282\u70b9\u4e0b\u8f7d\u6587\u4ef6\nhadoop fs -get \/README.txt .\/\n\n\/\/\u6570\u636e\u79fb\u52a8\nhadoop fs -mv <src> ... <dst>\n\n\/\/\u8ffd\u52a0\u6570\u636e\nhadoop fs -appendToFile 2.txt 3.txt \/1.txt\n\n\/\/\u8bfb\u53d6\u6587\u4ef6\nhadoop fs -cat \/itcast\/test\n\n\/\/\u5220\u9664\u6587\u4ef6\nhadoop fs -rm -r \/file.txt<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"hadoop\u67b6\u6784 \u5728\u81ea\u5236\u7684\u7cfb\u7edf\u4e2d\uff0chadoop\u7684\u5f62\u5f0f\u5982\u4e0b\u6240\u793a: \u4e00\u4e2aHDFS\u96c6\u7fa4\u662f\u6709\u4e00\u4e2aNamenode\u548c\u4e00\u5b9a […]<\/p>\n","protected":false},"author":1,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[25,20],"class_list":["post-191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note","tag-hadoop","tag-big-data"],"_links":{"self":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":2,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions"}],"predecessor-version":[{"id":198,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/posts\/191\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=191"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mapleleaf666.vip\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- hadoop\u72b6\u6001\u9875\u9762\uff1ahttp:\/\/master:8088\/<\/a><\/li>\n<\/ul>\n\n\n\n