{"id":6557,"date":"2022-04-09T20:57:10","date_gmt":"2022-04-09T12:57:10","guid":{"rendered":"https:\/\/egonlin.com\/?p=6557"},"modified":"2022-04-09T20:57:10","modified_gmt":"2022-04-09T12:57:10","slug":"hadoop%e5%92%8cspark%e8%81%94%e7%b3%bb%e4%b8%8e%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=6557","title":{"rendered":"Hadoop\u548cSpark\u8054\u7cfb\u4e0e\u533a\u522b"},"content":{"rendered":"

\u8c08\u5230\u5927\u6570\u636e\uff0c\u76f8\u4fe1\u5927\u5bb6\u5bf9Hadoop\u548cApache Spark\u8fd9\u4e24\u4e2a\u540d\u5b57\u5e76\u4e0d\u964c\u751f\u3002\u4f46\u6211\u4eec\u5f80\u5f80\u5bf9\u5b83\u4eec\u7684\u7406\u89e3\u53ea\u662f\u63d0\u7559\u5728\u5b57\u9762\u4e0a\uff0c\u5e76\u6ca1\u6709\u5bf9\u5b83\u4eec\u8fdb\u884c\u6df1\u5165\u7684\u601d\u8003\uff0c\u4e0b\u9762\u4e0d\u59a8\u8ddf\u6211\u4e00\u5757\u770b\u4e0b\u5b83\u4eec\u7a76\u7adf\u6709\u4ec0\u4e48\u5f02\u540c\u3002<\/p>\n

\u89e3\u51b3\u95ee\u9898\u7684\u5c42\u9762\u4e0d\u4e00\u6837<\/p>\n

\u9996\u5148\uff0cHadoop\u548cApache Spark\u4e24\u8005\u90fd\u662f\u5927\u6570\u636e\u6846\u67b6\uff0c\u4f46\u662f\u5404\u81ea\u5b58\u5728\u7684\u76ee\u7684\u4e0d\u5c3d\u76f8\u540c\u3002Hadoop\u5b9e\u8d28\u4e0a\u66f4\u591a\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u6570\u636e\u57fa\u7840\u8bbe\u65bd: \u5b83\u5c06\u5de8\u5927\u7684\u6570\u636e\u96c6\u5206\u6d3e\u5230\u4e00\u4e2a\u7531\u666e\u901a\u8ba1\u7b97\u673a\u7ec4\u6210\u7684\u96c6\u7fa4\u4e2d\u7684\u591a\u4e2a\u8282\u70b9\u8fdb\u884c\u5b58\u50a8\uff0c\u610f\u5473\u7740\u60a8\u4e0d\u9700\u8981\u8d2d\u4e70\u548c\u7ef4\u62a4\u6602\u8d35\u7684\u670d\u52a1\u5668\u786c\u4ef6\u3002<\/strong><\/p>\n

\u540c\u65f6\uff0cHadoop\u8fd8\u4f1a\u7d22\u5f15\u548c\u8ddf\u8e2a\u8fd9\u4e9b\u6570\u636e\uff0c\u8ba9\u5927\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u6548\u7387\u8fbe\u5230\u524d\u6240\u672a\u6709\u7684\u9ad8\u5ea6\u3002Spark\uff0c\u5219\u662f\u90a3\u4e48\u4e00\u4e2a\u4e13\u95e8\u7528\u6765\u5bf9\u90a3\u4e9b\u5206\u5e03\u5f0f\u5b58\u50a8\u7684\u5927\u6570\u636e\u8fdb\u884c\u5904\u7406\u7684\u5de5\u5177\uff0c\u5b83\u5e76\u4e0d\u4f1a\u8fdb\u884c\u5206\u5e03\u5f0f\u6570\u636e\u7684\u5b58\u50a8\u3002<\/strong><\/p>\n

\u4e24\u8005\u53ef\u5408\u53ef\u5206<\/p>\n

Hadoop\u9664\u4e86\u63d0\u4f9b\u4e3a\u5927\u5bb6\u6240\u5171\u8bc6\u7684HDFS\u5206\u5e03\u5f0f\u6570\u636e\u5b58\u50a8\u529f\u80fd\u4e4b\u5916\uff0c\u8fd8\u63d0\u4f9b\u4e86\u53eb\u505aMapReduce\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\u3002\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u629b\u5f00Spark\uff0c\u4f7f\u7528Hadoop\u81ea\u8eab\u7684MapReduce\u6765\u5b8c\u6210\u6570\u636e\u7684\u5904\u7406\u3002<\/strong><\/p>\n

\u76f8\u53cd\uff0cSpark\u4e5f\u4e0d\u662f\u975e\u8981\u4f9d\u9644\u5728Hadoop\u8eab\u4e0a\u624d\u80fd\u751f\u5b58\u3002\u4f46\u5982\u4e0a\u6240\u8ff0\uff0c\u6bd5\u7adf\u5b83\u6ca1\u6709\u63d0\u4f9b\u6587\u4ef6\u7ba1\u7406\u7cfb\u7edf\uff0c\u6240\u4ee5\uff0c\u5b83\u5fc5\u987b\u548c\u5176\u4ed6\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u8fdb\u884c\u96c6\u6210\u624d\u80fd\u8fd0\u4f5c\u3002\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u9009\u62e9Hadoop\u7684HDFS,\u4e5f\u53ef\u4ee5\u9009\u62e9\u5176\u4ed6\u7684\u57fa\u4e8e\u4e91\u7684\u6570\u636e\u7cfb\u7edf\u5e73\u53f0\u3002\u4f46Spark\u9ed8\u8ba4\u6765\u8bf4\u8fd8\u662f\u88ab\u7528\u5728Hadoop\u4e0a\u9762\u7684\uff0c\u6bd5\u7adf\uff0c\u5927\u5bb6\u90fd\u8ba4\u4e3a\u5b83\u4eec\u7684\u7ed3\u5408\u662f\u6700\u597d\u7684\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4ece\u7f51\u4e0a\u6458\u5f55\u7684\u5bf9MapReduce\u7684\u6700\u7b80\u6d01\u660e\u4e86\u7684\u89e3\u6790:<\/p>\n

\u6211\u4eec\u8981\u6570\u56fe\u4e66\u9986\u4e2d\u7684\u6240\u6709\u4e66\u3002\u4f60\u65701\u53f7\u4e66\u67b6\uff0c\u6211\u65702\u53f7\u4e66\u67b6\u3002\u8fd9\u5c31\u662f\u201cMap\u201d\u3002\u6211\u4eec\u4eba\u8d8a\u591a\uff0c\u6570\u4e66\u5c31\u66f4\u5feb\u3002
\n\u73b0\u5728\u6211\u4eec\u5230\u4e00\u8d77\uff0c\u628a\u6240\u6709\u4eba\u7684\u7edf\u8ba1\u6570\u52a0\u5728\u4e00\u8d77\u3002\u8fd9\u5c31\u662f\u201cReduce\u201d\u3002<\/p>\n

Spark\u6570\u636e\u5904\u7406\u901f\u5ea6\u79d2\u6740MapReduce<\/p>\n

Spark\u56e0\u4e3a\u5176\u5904\u7406\u6570\u636e\u7684\u65b9\u5f0f\u4e0d\u4e00\u6837\uff0c\u4f1a\u6bd4MapReduce\u5feb\u4e0a\u5f88\u591a\u3002MapReduce\u662f\u5206\u6b65\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u7684: \u201d\u4ece\u96c6\u7fa4\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u8fdb\u884c\u4e00\u6b21\u5904\u7406\uff0c\u5c06\u7ed3\u679c\u5199\u5230\u96c6\u7fa4\uff0c\u4ece\u96c6\u7fa4\u4e2d\u8bfb\u53d6\u66f4\u65b0\u540e\u7684\u6570\u636e\uff0c\u8fdb\u884c\u4e0b\u4e00\u6b21\u7684\u5904\u7406\uff0c\u5c06\u7ed3\u679c\u5199\u5230\u96c6\u7fa4\uff0c\u7b49\u7b49\u2026\u201c Booz Allen Hamilton\u7684\u6570\u636e\u79d1\u5b66\u5bb6Kirk Borne\u5982\u6b64\u89e3\u6790\u3002<\/p>\n

\u53cd\u89c2Spark\uff0c\u5b83\u4f1a\u5728\u5185\u5b58\u4e2d\u4ee5\u63a5\u8fd1\u201c\u5b9e\u65f6\u201d\u7684\u65f6\u95f4\u5b8c\u6210\u6240\u6709\u7684\u6570\u636e\u5206\u6790\uff1a\u201c\u4ece\u96c6\u7fa4\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5b8c\u6210\u6240\u6709\u5fc5\u987b\u7684\u5206\u6790\u5904\u7406\uff0c\u5c06\u7ed3\u679c\u5199\u56de\u96c6\u7fa4\uff0c\u5b8c\u6210\uff0c\u201d Born\u8bf4\u9053\u3002Spark\u7684\u6279\u5904\u7406\u901f\u5ea6\u6bd4MapReduce\u5feb\u8fd110\u500d\uff0c\u5185\u5b58\u4e2d\u7684\u6570\u636e\u5206\u6790\u901f\u5ea6\u5219\u5feb\u8fd1100\u500d\u3002<\/p>\n

\u5982\u679c\u9700\u8981\u5904\u7406\u7684\u6570\u636e\u548c\u7ed3\u679c\u9700\u6c42\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u662f\u9759\u6001\u7684\uff0c\u4e14\u4f60\u4e5f\u6709\u8010\u5fc3\u7b49\u5f85\u6279\u5904\u7406\u7684\u5b8c\u6210\u7684\u8bdd\uff0cMapReduce\u7684\u5904\u7406\u65b9\u5f0f\u4e5f\u662f\u5b8c\u5168\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n

\u4f46\u5982\u679c\u4f60\u9700\u8981\u5bf9\u6d41\u6570\u636e\u8fdb\u884c\u5206\u6790\uff0c\u6bd4\u5982\u90a3\u4e9b\u6765\u81ea\u4e8e\u5de5\u5382\u7684\u4f20\u611f\u5668\u6536\u96c6\u56de\u6765\u7684\u6570\u636e\uff0c\u53c8\u6216\u8005\u8bf4\u4f60\u7684\u5e94\u7528\u662f\u9700\u8981\u591a\u91cd\u6570\u636e\u5904\u7406\u7684\uff0c\u90a3\u4e48\u4f60\u4e5f\u8bb8\u66f4\u5e94\u8be5\u4f7f\u7528Spark\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

\u5927\u90e8\u5206\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u90fd\u662f\u9700\u8981\u591a\u91cd\u6570\u636e\u5904\u7406\u7684\u3002\u6b64\u5916\uff0c\u901a\u5e38\u4f1a\u7528\u5230Spark\u7684\u5e94\u7528\u573a\u666f\u6709\u4ee5\u4e0b\u65b9\u9762\uff1a\u5b9e\u65f6\u7684\u5e02\u573a\u6d3b\u52a8\uff0c\u5728\u7ebf\u4ea7\u54c1\u63a8\u8350\uff0c\u7f51\u7edc\u5b89\u5168\u5206\u6790\uff0c\u673a\u5668\u65e5\u8bb0\u76d1\u63a7\u7b49\u3002<\/p>\n

\u707e\u96be\u6062\u590d<\/p>\n

\u4e24\u8005\u7684\u707e\u96be\u6062\u590d\u65b9\u5f0f\u8fe5\u5f02\uff0c\u4f46\u662f\u90fd\u5f88\u4e0d\u9519\u3002\u56e0\u4e3aHadoop\u5c06\u6bcf\u6b21\u5904\u7406\u540e\u7684\u6570\u636e\u90fd\u5199\u5165\u5230\u78c1\u76d8\u4e0a\uff0c\u6240\u4ee5\u5176\u5929\u751f\u5c31\u80fd\u5f88\u6709\u5f39\u6027\u7684\u5bf9\u7cfb\u7edf\u9519\u8bef\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

Spark\u7684\u6570\u636e\u5bf9\u8c61\u5b58\u50a8\u5728\u5206\u5e03\u4e8e\u6570\u636e\u96c6\u7fa4\u4e2d\u7684\u53eb\u505a\u5f39\u6027\u5206\u5e03\u5f0f\u6570\u636e\u96c6(RDD: Resilient Distributed Dataset)\u4e2d\u3002\u201c\u8fd9\u4e9b\u6570\u636e\u5bf9\u8c61\u65e2\u53ef\u4ee5\u653e\u5728\u5185\u5b58\uff0c\u4e5f\u53ef\u4ee5\u653e\u5728\u78c1\u76d8\uff0c\u6240\u4ee5RDD\u540c\u6837\u4e5f\u53ef\u4ee5\u63d0\u4f9b\u5b8c\u6210\u7684\u707e\u96be\u6062\u590d\u529f\u80fd\uff0c\u201dBorne\u6307\u51fa\u3002<\/p>\n

\u63a8\u8350\u9605\u8bfb<\/p>\n

hdfs\uff1a\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff0c\u4e00\u4e2a\u5927\u6587\u4ef6\u62c6\u5f00\u5206\u522b\u5b58\u653e\u4e0e\u4e0d\u540c\u7684\u4e3b\u673a\nmap-reduce\uff1a\u542f\u52a8mapreduce\u7a0b\u5e8f\u7528\u6765\u5206\u5e03\u5f0f\u5904\u7406\u5927\u6587\u4ef6\uff0cmap\u662f\u4e3b\u673a\u5206\u5e03\u5f0f\u5e76\u884c\u5904\u7406\uff0creduce\u662f\u6c47\u603b\u7ed3\u679c\nhive\uff1amap-reduce\u5199\u8d77\u6765\u592a\u96be\u4e86\uff0chive\u63d0\u4f9b\u4e86\u7528sql\u63cf\u8ff0mapreduce\u7684\u529f\u80fd\uff0c\n     \u53ca\uff1asql\u8bed\u53e5---\u300bhive---\u3009mapreduce---\u300bhdfs\n\n    hive\u5c31\u50cf\u662f\u4e00\u4e2asql\u5f15\u64ce\uff0c\u53ef\u4ee5\u628asql\u8f6c\u6362\u4e3amapreduce\u7a0b\u5e8f\n\n\u4f46\u662fhive\u5728mapreduce\u4e0a\u8dd1\u592a\u6162\u4e86\uff0c\u4e8e\u662f\u6709\u4e86spark\uff0cspark\u6bd4mapreduce\u66f4\u8f7b\u91cf\u7ea7\n\u6570\u636e\u4ed3\u5e93\u7684\u73b0\u5728\u7684\u67b6\u6784\u53ef\u4ee5\u662f\nhive---\u300bspark----\u3009hdfs\n\n\u4e5f\u53ef\u4ee5\u662f\nhive\/pig---\u300bMapReduce\/Tez\/Spark====\u3009HDFS\n\n------------\nSpark\u662f\u4e00\u4e2a\u8ba1\u7b97\u6846\u67b6\n\nHadoop\u662f\u5305\u542b\u8ba1\u7b97\u6846\u67b6MapReducehe\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edfHDFS\u3002\n\nSpark\u662fMapReduce\u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u800c\u4e14\u517c\u5bb9HDFS\u3001Hive\u7b49\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf\uff0c\u53ef\u878d\u5165Hadoop\u751f\u6001\u3002\n\nhttps:\/\/cloud.tencent.com\/developer\/article\/1042387<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u8c08\u5230\u5927\u6570\u636e\uff0c\u76f8\u4fe1\u5927\u5bb6\u5bf9Hadoop\u548cApache Spark\u8fd9\u4e24\u4e2a\u540d\u5b57\u5e76\u4e0d\u964c\u751f\u3002\u4f46\u6211\u4eec\u5f80\u5f80\u5bf9\u5b83\u4eec\u7684\u7406\u89e3\u53ea\u662f\u63d0\u7559 […]<\/p>\n","protected":false},"author":3,"featured_media":6484,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[411],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6557"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6557"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6557\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6484"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}