{"id":13433,"date":"2023-01-15T22:42:03","date_gmt":"2023-01-15T14:42:03","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=13433"},"modified":"2023-01-15T22:42:04","modified_gmt":"2023-01-15T14:42:04","slug":"hadoop%e5%8f%af%e4%bb%a5%e5%a4%84%e7%90%86%e5%93%aa%e4%ba%9b%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/13433.html","title":{"rendered":"Hadoop\u53ef\u4ee5\u5904\u7406\u54ea\u4e9b\u6570\u636e<\/strong>"},"content":{"rendered":"\n
\n

<\/p>\nApache Hadoop\u662f\u4e00\u4e2a\u5f00\u6e90\u6846\u67b6\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u6709\u6548\u5730\u7ba1\u7406\u548c\u5904\u7406\u5728\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u5927\u6570\u636e\u3002\u4e0d\u7ba1\u6570\u636e\u662f\u7531\u6587\u672c\uff0c\u56fe\u50cf\u8fd8\u662f\u89c6\u9891\u6570\u636e\u7ec4\u6210\uff0cHadoop\u90fd\u53ef\u4ee5\u6709\u6548\u5730\u5b58\u50a8\u5b83\u3002\u4f01\u4e1a\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u5982\u4f55\u5904\u7406\u6570\u636e\u3002<\/cite><\/blockquote>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u4e00\u3001\u4ec0\u4e48\u662fHadoop?<\/h2>\n\n\n\n

Apache Hadoop\u662f\u4e00\u4e2a\u5f00\u6e90\u6846\u67b6\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u6709\u6548\u5730\u7ba1\u7406\u548c\u5904\u7406\u5728\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u5927\u6570\u636e\u3002<\/p>\n\n\n\n

\u4e8c\u3001\u4e3a\u4ec0\u4e48\u5f00\u53d1Hadoop?<\/h2>\n\n\n\n

\u8fc7\u5f80\u4e92\u8054\u7f51\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u4ea7\u751f\u4e86\u6570\u91cf\u5e9e\u5927\u7684Web\u9875\u9762\u3002\u7531\u4e8e\u6570\u91cf\u5e9e\u5927\uff0c\u5728\u7ebf\u641c\u7d22\u4fe1\u606f\u53d8\u5f97\u5f88\u56f0\u96be\u3002\u8fd9\u4e9b\u6570\u636e\u6210\u4e3a\u5927\u6570\u636e\uff0c\u5b83\u5305\u542b\u4e24\u4e2a\u4e3b\u8981\u95ee\u9898\uff1a\u96be\u4ee5\u4ee5\u6709\u6548\u4e14\u6613\u4e8e\u68c0\u7d22\u7684\u65b9\u5f0f\u5b58\u50a8\u6240\u6709\u8fd9\u4e9b\u6570\u636e\u3001\u96be\u4ee5\u5904\u7406\u5b58\u50a8\u7684\u6570\u636e\u3002<\/p>\n\n\n\n

\u5f00\u53d1\u8005\u81f4\u529b\u4e8e\u8bb8\u591a\u5f00\u6e90\u9879\u76ee\uff0c\u4ee5\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u4ece\u800c\u66f4\u5feb\uff0c\u66f4\u6709\u6548\u5730\u8fd4\u56deWeb\u641c\u7d22\u7ed3\u679c\u3002\u4ed6\u4eec\u7684\u89e3\u51b3\u65b9\u6848\u662f\u5728\u670d\u52a1\u5668\u96c6\u7fa4\u4e4b\u95f4\u5206\u5e03\u6570\u636e\u548c\u8ba1\u7b97\u4ee5\u5b9e\u73b0\u540c\u6b65\u5904\u7406\u3002\u6700\u7ec8\uff0cHadoop\u6210\u4e3a\u8fd9\u4e9b\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5e76\u5e26\u6765\u4e86\u8bb8\u591a\u5176\u4ed6\u597d\u5904\uff0c\u5305\u62ec\u964d\u4f4e\u4e86\u670d\u52a1\u5668\u90e8\u7f72\u6210\u672c\u3002<\/p>\n\n\n\n

\u4e09\u3001Hadoop\u5927\u6570\u636e\u5904\u7406\u5982\u4f55\u5de5\u4f5c?<\/h2>\n\n\n\n

\u901a\u8fc7\u4f7f\u7528Hadoop\uff0c\u7528\u6237\u53ef\u4ee5\u5229\u7528\u96c6\u7fa4\u7684\u5b58\u50a8\u548c\u5904\u7406\u80fd\u529b\uff0c\u5e76\u5b9e\u73b0\u5927\u6570\u636e\u7684\u5206\u5e03\u5f0f\u5904\u7406\u3002\u672c\u8d28\u4e0a\uff0cHadoop\u63d0\u4f9b\u4e86\u4e00\u4e2a\u57fa\u7840\uff0c\u53ef\u4ee5\u5728\u8be5\u57fa\u7840\u4e0a\u6784\u5efa\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u6765\u5904\u7406\u5927\u6570\u636e\u3002<\/p>\n\n\n\n

\u6536\u96c6\u4e0d\u540c\u683c\u5f0f\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u8fde\u63a5\u5230NameNode\u7684Hadoop API\u5c06\u5b83\u4eec\u5b58\u50a8\u5728Hadoop\u96c6\u7fa4\u4e2d\u3002NameNode\u6355\u83b7\u6587\u4ef6\u76ee\u5f55\u7684\u7ed3\u6784\u4ee5\u53ca\u6bcf\u4e2a\u521b\u5efa\u6587\u4ef6\u7684\u201c\u5757\u201d\u4f4d\u7f6e\u3002Hadoop\u8de8DataNode\u590d\u5236\u8fd9\u4e9b\u5757\u4ee5\u8fdb\u884c\u5e76\u884c\u5904\u7406\u3002<\/p>\n\n\n\n

MapReduce\u6267\u884c\u6570\u636e\u67e5\u8be2\u3002\u5b83\u6620\u5c04\u51fa\u6240\u6709DataNode\uff0c\u5e76\u51cf\u5c11\u4e86\u4e0eHDFS\u4e2d\u6570\u636e\u6709\u5173\u7684\u4efb\u52a1\u3002\u201cMapReduce\u201d\u672c\u8eab\u63cf\u8ff0\u4e86\u5b83\u7684\u4f5c\u7528\u3002Map\u4efb\u52a1\u5728\u63d0\u4f9b\u7684\u8f93\u5165\u6587\u4ef6\u7684\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c\uff0c\u800creducer\u8fd0\u884c\u4ee5\u94fe\u63a5\u6570\u636e\u5e76\u7ec4\u7ec7\u6700\u7ec8\u8f93\u51fa\u3002<\/p>\n\n\n\n

\u56db\u3001\u00a0Hadoop\u7684\u4f18\u52bf<\/h2>\n\n\n\n

(1) \u66f4\u5feb\u5730\u5b58\u50a8\u548c\u5904\u7406\u5927\u91cf\u6570\u636e<\/p>\n\n\n\n

\u968f\u7740\u793e\u4ea4\u5a92\u4f53\u548c\u7269\u8054\u7f51\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u8981\u5b58\u50a8\u7684\u6570\u636e\u91cf\u6025\u5267\u589e\u52a0\u3002\u8fd9\u4e9b\u6570\u636e\u96c6\u7684\u5b58\u50a8\u548c\u5904\u7406\u5bf9\u4e8e\u62e5\u6709\u5b83\u4eec\u7684\u4f01\u4e1a\u81f3\u5173\u91cd\u8981\u3002<\/p>\n\n\n\n

(2) \u7075\u6d3b\u6027<\/p>\n\n\n\n

Hadoop\u7684\u7075\u6d3b\u6027\u4f7f\u7528\u6237\u53ef\u4ee5\u4fdd\u5b58\u975e\u7ed3\u6784\u5316\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982\u6587\u672c\uff0c\u7b26\u53f7\uff0c\u56fe\u50cf\u548c\u89c6\u9891\u3002\u5728\u4f20\u7edf\u7684\u5173\u7cfb\u6570\u636e\u5e93(\u5982RDBMS)\u4e2d\u9700\u8981\u5728\u5b58\u50a8\u6570\u636e\u4e4b\u524d\u5bf9\u5176\u8fdb\u884c\u5904\u7406\u3002\u4f46\u662f\u5bf9\u4e8eHadoop\uff0c\u4e0d\u9700\u8981\u9884\u5904\u7406\u6570\u636e\uff0c\u56e0\u4e3a\u53ef\u4ee5\u6309\u539f\u6837\u5b58\u50a8\u6570\u636e\u5e76\u51b3\u5b9a\u4ee5\u540e\u5982\u4f55\u5904\u7406\u5b83\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5b83\u8868\u73b0\u4e3aNoSQL\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n

(3) \u5f3a\u5927\u7684\u5904\u7406\u80fd\u529b<\/p>\n\n\n\n

Hadoop\u901a\u8fc7\u5206\u5e03\u5f0f\u8ba1\u7b97\u6a21\u578b\u5904\u7406\u5927\u6570\u636e\u3002\u5b83\u9ad8\u6548\u5730\u5229\u7528\u5904\u7406\u80fd\u529b\uff0c\u4f7f\u5176\u65e2\u5feb\u901f\u53c8\u9ad8\u6548\u3002<\/p>\n\n\n\n

(4) \u964d\u4f4e\u6210\u672c<\/p>\n\n\n\n

\u8bb8\u591a\u56e2\u961f\u7531\u4e8e\u5176\u9ad8\u6602\u7684\u6210\u672c\u800c\u653e\u5f03\u4e86\u8bf8\u5982Hadoop\u4e4b\u7c7b\u7684\u6846\u67b6\u4e4b\u524d\u7684\u9879\u76ee\u3002Hadoop\u662f\u4e00\u4e2a\u5f00\u653e\u6e90\u4ee3\u7801\u6846\u67b6\uff0c\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528\uff0c\u5e76\u4e14\u4f7f\u7528\u4f4e\u6210\u672c\u7684\u5546\u54c1\u786c\u4ef6\u6765\u5b58\u50a8\u6570\u636e\u3002<\/p>\n\n\n\n

(5) \u53ef\u4f38\u7f29\u6027<\/p>\n\n\n\n

Hadoop\u5141\u8bb8\u4ec5\u901a\u8fc7\u66f4\u6539\u96c6\u7fa4\u4e2d\u7684\u8282\u70b9\u6570\u5373\u53ef\u5feb\u901f\u6269\u5c55\u7cfb\u7edf\uff0c\u800c\u65e0\u9700\u8fdb\u884c\u5927\u91cf\u7ba1\u7406\u3002<\/p>\n\n\n\n

(6) \u5bb9\u9519<\/p>\n\n\n\n

\u4f7f\u7528\u5206\u5e03\u5f0f\u6570\u636e\u6a21\u578b\u7684\u4f17\u591a\u4f18\u52bf\u4e4b\u4e00\u662f\u5176\u5bb9\u5fcd\u6545\u969c\u7684\u80fd\u529b\u3002Hadoop\u4e0d\u4f9d\u8d56\u786c\u4ef6\u6765\u7ef4\u6301\u53ef\u7528\u6027\u3002\u5982\u679c\u8bbe\u5907\u53d1\u751f\u6545\u969c\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5c06\u4efb\u52a1\u91cd\u5b9a\u5411\u5230\u53e6\u4e00\u53f0\u8bbe\u5907\u3002\u5bb9\u9519\u662f\u53ef\u80fd\u7684\uff0c\u56e0\u4e3a\u53ef\u4ee5\u901a\u8fc7\u5728\u6574\u4e2a\u96c6\u7fa4\u4e2d\u4fdd\u5b58\u591a\u4e2a\u6570\u636e\u526f\u672c\u6765\u7ef4\u62a4\u5197\u4f59\u6570\u636e\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u8f6f\u4ef6\u5c42\u4fdd\u6301\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n

\u4e94\u3001\u4e3b\u8981\u7528\u9014<\/h2>\n\n\n\n

(1) \u5904\u7406\u5927\u6570\u636e<\/p>\n\n\n\n

\u5efa\u8bae\u5c06Hadoop\u7528\u4e8e\u6d77\u91cf\u6570\u636e\uff0c\u901a\u5e38\u8303\u56f4\u4e3aPB\u6216\u66f4\u5927\u3002\u5b83\u66f4\u9002\u5408\u9700\u8981\u5927\u91cf\u5904\u7406\u80fd\u529b\u7684\u6d77\u91cf\u6570\u636e\u3002\u5bf9\u4e8e\u5904\u7406\u51e0\u767eGB\u8303\u56f4\u5185\u7684\u5c11\u91cf\u6570\u636e\u7684\u4f01\u4e1a\u800c\u8a00\uff0cHadoop\u53ef\u80fd\u4e0d\u662f\u4f18\u5f02\u9009\u62e9\u3002<\/p>\n\n\n\n

(2) \u5b58\u50a8\u5404\u79cd\u6570\u636e<\/p>\n\n\n\n

\u4f7f\u7528Hadoop\u7684\u4f17\u591a\u4f18\u52bf\u4e4b\u4e00\u662f\u5b83\u5177\u6709\u7075\u6d3b\u6027\u5e76\u652f\u6301\u5404\u79cd\u6570\u636e\u7c7b\u578b\u3002\u4e0d\u7ba1\u6570\u636e\u662f\u7531\u6587\u672c\uff0c\u56fe\u50cf\u8fd8\u662f\u89c6\u9891\u6570\u636e\u7ec4\u6210\uff0cHadoop\u90fd\u53ef\u4ee5\u6709\u6548\u5730\u5b58\u50a8\u5b83\u3002\u4f01\u4e1a\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u5982\u4f55\u5904\u7406\u6570\u636e\u3002Hadoop\u5177\u6709\u6570\u636e\u6e56\u7684\u7279\u6027\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u5bf9\u5b58\u50a8\u6570\u636e\u7684\u7075\u6d3b\u6027\u3002<\/p>\n\n\n\n

(3) \u5e76\u884c\u6570\u636e\u5904\u7406<\/p>\n\n\n\n

Hadoop\u4e2d\u4f7f\u7528\u7684MapReduce\u7b97\u6cd5\u534f\u8c03\u5b58\u50a8\u6570\u636e\u7684\u5e76\u884c\u5904\u7406\uff0c\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u540c\u65f6\u6267\u884c\u591a\u4e2a\u4efb\u52a1\u3002\u4f46\u662f\u4e0d\u5141\u8bb8\u8fdb\u884c\u8054\u5408\u64cd\u4f5c\uff0c\u56e0\u4e3a\u8fd9\u4f1a\u6df7\u6dc6Hadoop\u4e2d\u7684\u6807\u51c6\u65b9\u6cd5\u3002\u53ea\u8981\u6570\u636e\u5f7c\u6b64\u72ec\u7acb\uff0c\u5b83\u5c31\u4f1a\u5305\u542b\u5e76\u884c\u6027\u3002<\/p>\n\n\n\n

\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8eHadoop\u5904\u7406\u6570\u636e\u7684\u77e5\u8bc6\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Apache Hadoop\u662f\u4e00\u4e2a\u5f00\u6e90\u6846\u67b6\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u6709\u6548\u5730\u7ba1\u7406\u548c\u5904\u7406\u5728\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u5927\u6570\u636e\u3002\u4e0d\u7ba1\u6570\u636e\u662f\u7531\u6587 […]","protected":false},"author":1,"featured_media":13435,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/13433"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=13433"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/13433\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/13435"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=13433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=13433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=13433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}