{"id":241,"date":"2017-02-18T11:59:28","date_gmt":"2017-02-18T11:59:28","guid":{"rendered":""},"modified":"2017-02-18T11:59:28","modified_gmt":"2017-02-18T11:59:28","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=241","title":{"rendered":"[\u8f6c] MapReduce\u548cTez\u5bf9\u6bd4"},"content":{"rendered":"

\n\tSource: https:\/\/www.cnblogs.com\/linn\/p\/5325147.html<\/a><\/span>\n<\/p>\n

\n\tMapReduce\u662f\u4e00\u79cd\u7f16\u7a0b\u6a21\u578b\uff0c\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u96c6\uff08\u5927\u4e8e1TB\uff09\u7684\u5e76\u884c\u8fd0\u7b97\u3002\u6982\u5ff5”Map\uff08\u6620\u5c04\uff09”\u548c”Reduce\uff08\u5f52\u7ea6\uff09”\u3002<\/span>\n<\/p>\n

\n\t\"\"\n<\/p>\n

\n\tTez\u662fApache\u5f00\u6e90\u7684\u652f\u6301DAG\u4f5c\u4e1a\u7684\u8ba1\u7b97\u6846\u67b6\uff0c\u5b83\u76f4\u63a5\u6e90\u4e8eMapReduce\u6846\u67b6\uff0c\u6838\u5fc3\u601d\u60f3\u662f\u5c06Map\u548cReduce\u4e24\u4e2a\u64cd\u4f5c\u8fdb\u4e00\u6b65\u62c6\u5206\uff0c\u5373Map\u88ab\u62c6\u5206\u6210Input\u3001Processor\u3001Sort\u3001Merge\u548cOutput\uff0c Reduce\u88ab\u62c6\u5206\u6210Input\u3001Shuffle\u3001Sort\u3001Merge\u3001Processor\u548cOutput\u7b49\uff0c\u8fd9\u6837\uff0c\u8fd9\u4e9b\u5206\u89e3\u540e\u7684\u5143\u64cd\u4f5c\u53ef\u4ee5\u4efb\u610f\u7075\u6d3b\u7ec4\u5408\uff0c\u4ea7\u751f\u65b0\u7684\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u7ecf\u8fc7\u4e00\u4e9b\u63a7\u5236\u7a0b\u5e8f\u7ec4\u88c5\u540e\uff0c\u53ef\u5f62\u6210\u4e00\u4e2a\u5927\u7684DAG\u4f5c\u4e1a\u3002\u603b\u7ed3\u8d77\u6765\uff0cTez\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/span>
\n \uff081\uff09Apache\u4e8c\u7ea7\u5f00\u6e90\u9879\u76ee\uff08\u6e90\u4ee3\u7801\u4eca\u5929\u53d1\u5e03\u7684\uff09<\/span>
\n \uff082\uff09\u8fd0\u884c\u5728YARN\u4e4b\u4e0a<\/span>
\n \uff083\uff09 \u9002\u7528\u4e8eDAG\uff08\u6709\u5411\u56fe\uff09\u5e94\u7528\uff08\u540cImpala\u3001Dremel\u548cDrill\u4e00\u6837\uff0c\u53ef\u7528\u4e8e\u66ff\u6362Hive\/Pig\u7b49\uff09<\/span>\n<\/p>\n

\n\t\n<\/p>\n

\n\t\u5bf9\u6bd4\u4e3e\u4f8b\uff1a<\/span>\n<\/p>\n

\n\t\"\"\n<\/p>\n

\n\t\u4f20\u7edf\u7684MR\uff08\u5305\u62ecHive\uff0cPig\u548c\u76f4\u63a5\u7f16\u5199MR\u7a0b\u5e8f\uff09\u3002\u5047\u8bbe\u6709\u56db\u4e2a\u6709\u4f9d\u8d56\u5173\u7cfb\u7684MR\u4f5c\u4e1a\uff081\u4e2a\u8f83\u4e3a\u590d\u6742\u7684Hive SQL\u8bed\u53e5\u6216\u8005Pig\u811a\u672c\u53ef\u80fd\u88ab\u7ffb\u8bd1\u62104\u4e2a\u6709\u4f9d\u8d56\u5173\u7cfb\u7684MR\u4f5c\u4e1a\uff09\u6216\u8005\u7528Oozie\u63cf\u8ff0\u76844\u4e2a\u6709\u4f9d\u8d56\u5173\u7cfb\u7684\u4f5c\u4e1a\uff0c\u8fd0\u884c\u8fc7\u7a0b\u5982\u4e0b\uff08\u5176\u4e2d\uff0c\u7eff\u8272\u662fReduce Task\uff0c\u9700\u8981\u5199HDFS\uff09\uff1a<\/span>\n<\/p>\n

\n\t \u4e91\u72b6\u8868\u793a\u5199\u5c4f\u853d\uff08write barrier\uff0c\u4e00\u79cd\u5185\u6838\u673a\u5236\uff0c\u6301\u4e45\u5199\uff09<\/span>\n<\/p>\n

\n\tTez\u53ef\u4ee5\u5c06\u591a\u4e2a\u6709\u4f9d\u8d56\u7684\u4f5c\u4e1a\u8f6c\u6362\u4e3a\u4e00\u4e2a\u4f5c\u4e1a\uff08\u8fd9\u6837\u53ea\u9700\u5199\u4e00\u6b21HDFS\uff0c\u4e14\u4e2d\u95f4\u8282\u70b9\u8f83\u5c11\uff09\uff0c\u4ece\u800c\u5927\u5927\u63d0\u5347DAG\u4f5c\u4e1a\u7684\u6027\u80fd<\/span>\n<\/p>\n

\n\t——————————<\/span>\n<\/p>\n

Hadoop\u662f\u57fa\u7840\uff0c\u5176\u4e2d\u7684HDFS\u63d0\u4f9b\u6587\u4ef6\u5b58\u50a8\uff0cYarn\u8fdb\u884c\u8d44\u6e90\u7ba1\u7406\u3002\u5728\u8fd9\u4e0a\u9762\u53ef\u4ee5\u8fd0\u884cMapReduce\u3001Spark\u3001Tez\u7b49\u8ba1\u7b97\u6846\u67b6\u3002\r\n<\/pre>\n
\n\tMapReduce:\u662f\u4e00\u79cd\u79bb\u7ebf\u8ba1\u7b97\u6846\u67b6\uff0c\u5c06\u4e00\u4e2a\u7b97\u6cd5\u62bd\u8c61\u6210Map\u548cReduce\u4e24\u4e2a\u9636\u6bb5\u8fdb\u884c\u5904\u7406\uff0c\u975e\u5e38\u9002\u5408\u6570\u636e\u5bc6\u96c6\u578b\u8ba1\u7b97\u3002<\/span>\n<\/p>\n
\n\tSpark:Spark\u662fUC Berkeley AMP lab\u6240\u5f00\u6e90\u7684\u7c7bHadoop MapReduce\u7684\u901a\u7528\u7684\u5e76\u884c\u8ba1\u7b97\u6846\u67b6\uff0cSpark\u57fa\u4e8emap reduce\u7b97\u6cd5\u5b9e\u73b0\u7684\u5206\u5e03\u5f0f\u8ba1\u7b97\uff0c\u62e5\u6709Hadoop MapReduce\u6240\u5177\u6709\u7684\u4f18\u70b9\uff1b\u4f46\u4e0d\u540c\u4e8eMapReduce\u7684\u662fJob\u4e2d\u95f4\u8f93\u51fa\u548c\u7ed3\u679c\u53ef\u4ee5\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u4ece\u800c\u4e0d\u518d\u9700\u8981\u8bfb\u5199HDFS\uff0c\u56e0\u6b64Spark\u80fd\u66f4\u597d\u5730\u9002\u7528\u4e8e\u6570\u636e\u6316\u6398\u4e0e\u673a\u5668\u5b66\u4e60\u7b49\u9700\u8981\u8fed\u4ee3\u7684map reduce\u7684\u7b97\u6cd5\u3002<\/span>\n<\/p>\n
\n\tStorm:MapReduce\u4e5f\u4e0d\u9002\u5408\u8fdb\u884c\u6d41\u5f0f\u8ba1\u7b97\u3001\u5b9e\u65f6\u5206\u6790\uff0c\u6bd4\u5982\u5e7f\u544a\u70b9\u51fb\u8ba1\u7b97\u7b49\u3002Storm\u662f\u4e00\u4e2a\u514d\u8d39\u5f00\u6e90\u3001\u5206\u5e03\u5f0f\u3001\u9ad8\u5bb9\u9519\u7684\u5b9e\u65f6\u8ba1\u7b97\u7cfb\u7edf\u3002Storm\u4ee4\u6301\u7eed\u4e0d\u65ad\u7684\u6d41\u8ba1\u7b97\u53d8\u5f97\u5bb9\u6613\uff0c\u5f25\u8865\u4e86Hadoop\u6279\u5904\u7406\u6240\u4e0d\u80fd\u6ee1\u8db3\u7684\u5b9e\u65f6\u8981\u6c42\u3002Storm\u7ecf\u5e38\u7528\u4e8e\u5728\u5b9e\u65f6\u5206\u6790\u3001\u5728\u7ebf\u673a\u5668\u5b66\u4e60\u3001\u6301\u7eed\u8ba1\u7b97\u3001\u5206\u5e03\u5f0f\u8fdc\u7a0b\u8c03\u7528\u548cETL\u7b49\u9886\u57df<\/span>\n<\/p>\n
\n\tTez: \u662f\u57fa\u4e8eHadoop Yarn\u4e4b\u4e0a\u7684DAG\uff08\u6709\u5411\u65e0\u73af\u56fe\uff0cDirected Acyclic Graph\uff09\u8ba1\u7b97\u6846\u67b6\u3002\u5b83\u628a\uff2dap\/Reduce\u8fc7\u7a0b\u62c6\u5206\u6210\u82e5\u5e72\u4e2a\u5b50\u8fc7\u7a0b\uff0c\u540c\u65f6\u53ef\u4ee5\u628a\u591a\u4e2a\uff2dap\/Reduce\u4efb\u52a1\u7ec4\u5408\u6210\u4e00\u4e2a\u8f83\u5927\u7684DAG\u4efb\u52a1\uff0c\u51cf\u5c11\u4e86\uff2dap\/Reduce\u4e4b\u95f4\u7684\u6587\u4ef6\u5b58\u50a8\u3002\u540c\u65f6\u5408\u7406\u7ec4\u5408\u5176\u5b50\u8fc7\u7a0b\uff0c\u4e5f\u53ef\u4ee5\u51cf\u5c11\u4efb\u52a1\u7684\u8fd0\u884c\u65f6\u95f4<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
\n\tMapReduce\u662f\u4e00\u79cd\u7f16\u7a0b\u6a21\u578b\uff0c\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u96c6\uff08\u5927\u4e8e1TB\uff09\u7684\u5e76\u884c\u8fd0\u7b97\u3002\u6982\u5ff5”Map\uff08\u6620\u5c04\uff09”\u548c”Reduce\uff08\u5f52\u7ea6\uff09”\u3002\n<\/p>\n
\n\t\"\"\n<\/p>\n
\n\tTez\u662fApache\u5f00\u6e90\u7684\u652f\u6301DAG\u4f5c\u4e1a\u7684\u8ba1\u7b97\u6846\u67b6\uff0c\u5b83\u76f4\u63a5\u6e90\u4e8eMapReduce\u6846\u67b6\uff0c\u6838\u5fc3\u601d\u60f3\u662f\u5c06Map\u548cReduce\u4e24\u4e2a\u64cd\u4f5c\u8fdb\u4e00\u6b65\u62c6\u5206\uff0c\u5373Map\u88ab\u62c6\u5206\u6210Input\u3001Processor\u3001Sort\u3001Merge\u548cOutput\uff0c Reduce\u88ab\u62c6\u5206\u6210Input\u3001…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[337],"tags":[],"class_list":["post-241","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"\n[\u8f6c] MapReduce\u548cTez\u5bf9\u6bd4 - Wayne's Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/weizn.net\/?p=241\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[\u8f6c] MapReduce\u548cTez\u5bf9\u6bd4 - 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