{"id":36845,"date":"2023-06-07T20:33:37","date_gmt":"2023-01-06T23:09:06","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/apache-flink%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e5%bf%ab%e7%85%a7%e6%96%b9%e6%b3%95%ef%bc%9a\/"},"modified":"2024-04-30T07:46:43","modified_gmt":"2024-04-29T23:46:43","slug":"apache-flink%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e5%bf%ab%e7%85%a7%e6%96%b9%e6%b3%95%ef%bc%9a","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/apache-flink%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e5%bf%ab%e7%85%a7%e6%96%b9%e6%b3%95%ef%bc%9a\/","title":{"rendered":"Apache Flink\u7684\u5206\u5e03\u5f0f\u5feb\u7167\u65b9\u6cd5\uff1a"},"content":{"rendered":"<h2>\u8fd9\u7bc7\u6587\u7ae0\u662f\u5173\u4e8e\u4ec0\u4e48\uff1f<\/h2>\n<p>\u8fd9\u662f2016\u5e74\u5206\u5e03\u5f0f\u8ba1\u7b97\uff08Apache Hadoop\uff0cSpark\uff0c&#8230;\uff09\u7684\u5723\u8bde\u65e5\u7a0b\u6d3b\u52a8\u4e2d\u7b2c18\u5929\u7684\u6587\u7ae0\u3002<\/p>\n<h2>\u8fd9\u7bc7\u6587\u7ae0\u8bb2\u4e86\u4ec0\u4e48\u5185\u5bb9\uff1f<\/h2>\n<p>\u5173\u4e8eApache Flink\u7684\u5206\u5e03\u5f0f\u5feb\u7167\u65b9\u5f0f\u3002<br \/>\n\u57fa\u7840\u4fe1\u606f\u662f\u6765\u81ea\u4e8e\u300a\u5206\u5e03\u5f0f\u6570\u636e\u6d41\u7684\u8f7b\u91cf\u7ea7\u5f02\u6b65\u5feb\u7167\u300b\u3002<\/p>\n<p>\u7136\u800c\uff0c\u7531\u4e8e\u8fd9\u7bc7\u8bba\u6587\u672c\u8eab\u4e5f\u53ea\u662f\u67d0\u4e00\u65f6\u70b9\u7684\u5feb\u7167\uff0c\u6240\u4ee5\u5728\u6700\u65b0\u7248\u672c\u4e2d\u60c5\u51b5\u53ef\u80fd\u5df2\u7ecf\u53d1\u751f\u4e86\u5f88\u5927\u53d8\u5316\uff0c\u4f46\u7531\u4e8e\u6211\u8fd8\u6ca1\u6709\u786e\u8ba4\u5230\u90a3\u4e2a\u7a0b\u5ea6\uff0c\u8bf7\u8c05\u89e3\u3002<\/p>\n<h2>\u56e0\u4e3a\u4e0d\u60f3\u9605\u8bfb\u9ebb\u70e6\uff0c\u603b\u7ed3\u4e00\u4e0b\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5165\u529b\u306b\u5b9a\u671f\u7684\u306b\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u6295\u5165\u3057\u3066\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u30c7\u30fc\u30bf\u51e6\u7406\u3092\u30b9\u30c6\u30fc\u30b8\u306b\u533a\u5207\u308b\u3088\u3046\u306b\u3057\u305f\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5404\u30aa\u30da\u30ec\u30fc\u30bf\u306f\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u53d7\u4fe1\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u8a72\u5f53\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u304b\u3089\u306e\u53d7\u4fe1\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u5168\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u304b\u3089\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u53d7\u4fe1\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u72b6\u614b\u3092\u4fdd\u5b58\u3059\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e0a\u8a18\u306e\u65b9\u5f0f\u306b\u3088\u308a\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u306e\u72b6\u614b\u306e\u307f\u306e\u4fdd\u5b58\u3067\u30b9\u30c8\u30ea\u30fc\u30e0\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u30c8\u30dd\u30ed\u30b8\u5168\u4f53\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u53d6\u5f97\u3067\u304d\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5faa\u74b0\u30b5\u30a4\u30af\u30eb\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u5faa\u74b0\u3067\u306a\u3044\u5168\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u304b\u3089\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u53d7\u4fe1\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u5faa\u74b0\u30b5\u30a4\u30af\u30eb\u306e\u51fa\u529b\u30c1\u30e3\u30cd\u30eb\u306b\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u9001\u4fe1\u3057\u3001\u5faa\u74b0\u30b5\u30a4\u30af\u30eb\u306e\u5165\u529b\u306b\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u304c\u5165\u3063\u3066\u304f\u308b\u307e\u3067\u306b\u53d7\u4fe1\u3057\u305f\u30ec\u30b3\u30fc\u30c9\u3082\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306b\u542b\u3081\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3002<\/ul>\n<h1>\u8f7b\u91cf\u7ea7\u5f02\u6b65\u5feb\u7167\u7528\u4e8e\u5206\u5e03\u5f0f\u6570\u636e\u6d41<\/h1>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u901a\u8fc7\u5206\u6563\u7684\u6709\u72b6\u6001\u6d41\u5904\u7406\uff0c\u53ef\u4ee5\u6267\u884c\u5927\u89c4\u6a21\u8fde\u7eed\u8ba1\u7b97\uff0c\u4ee5\u5b9e\u73b0\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u541e\u5410\u91cf\u7684\u76ee\u6807\u3002<\/p>\n<p>\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u5176\u4e2d\u4e00\u4e2a\u57fa\u672c\u95ee\u9898\u662f\u5728\u6f5c\u5728\u969c\u788d\u4e0b\u63d0\u4f9b\u5904\u7406\u4fdd\u969c\u3002<\/p>\n<p>\u73b0\u6709\u7684\u65b9\u6cd5\u4f9d\u8d56\u4e8e\u53ef\u4ee5\u7528\u4e8e\u6545\u969c\u6062\u590d\u7684\u5b9a\u671f\u5168\u5c40\u72b6\u6001\u5feb\u7167\u3002<\/p>\n<p>\u8fd9\u4e9b\u65b9\u6cd5\u5b58\u5728\u4e24\u4e2a\u4e3b\u8981\u7f3a\u70b9\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5168\u4f53\u306e\u8a08\u7b97\u3092\u505c\u6b62\u3055\u305b\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5fc5\u8981\u4ee5\u4e0a\u306b\u5927\u304d\u306a\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u5fc5\u8981\u3068\u306a\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>\u52d5\u4f5c\u72b6\u614b\u3068\u3068\u3082\u306b\u3001\u901a\u4fe1\u4e2d\u306e\u3059\u3079\u3066\u306e\u72b6\u614b\u3092\u4fdd\u6301\u3057\u3066\u3057\u307e\u3046\u3002<\/p>\n<p>\u5728\u672c\u8ad6\u6587\u4e2d\uff0c\u6211\u5011\u63d0\u51fa\u4e86\u4e00\u7a2e\u9069\u7528\u65bc\u6700\u65b0\u7684\u6578\u64da\u6d41\u57f7\u884c\u5f15\u64ce\u7684\u8f15\u91cf\u7d1a\u7b97\u6cd5\uff0c\u540d\u70ba\u975e\u540c\u6b65\u5c4f\u969c\u5feb\u7167\uff08ABS\uff09\uff0c\u4ee5\u61c9\u5c0d\u9019\u4e9b\u60c5\u6cc1\u3002<br \/>\n\u5728\u975e\u5faa\u74b0\u5716\u7684\u6578\u64da\u6d41\u4e2d\uff0cABS\u50c5\u4fdd\u7559\u904b\u7b97\u7b26\u72c0\u614b\uff0c\u800c\u5728\u5faa\u74b0\u5716\u7684\u6578\u64da\u6d41\u4e2d\uff0c\u50c5\u7dad\u6301\u6700\u5c11\u7684\u8a18\u9304\u65e5\u8a8c\u3002<br \/>\n\u6211\u5011\u5728\u652f\u6301\u5206\u6563\u72c0\u614b\u6d41\u8655\u7406\u7684\u5206\u6563\u5206\u6790\u5f15\u64ceApache Flink\u4e2d\u5be6\u73fe\u4e86ABS\u3002<br \/>\n\u8a55\u4f30\u7d50\u679c\u8868\u660e\uff0cABS\u5c0d\u57f7\u884c\u6c92\u6709\u5f88\u5927\u5f71\u97ff\uff0c\u4e26\u4fdd\u6301\u7dda\u6027\u53ef\u64f4\u5c55\u6027\uff0c\u80fd\u5920\u6210\u529f\u8655\u7406\u983b\u7e41\u7684\u5feb\u7167\u60c5\u6cc1\u3002<\/p>\n<h3>1. \u5f15\u5165<\/h3>\n<p>\u5206\u6563\u5f0f\u7684\u6709\u72b6\u6001\u6d41\u5904\u7406\u662f\u8ba1\u7b97\u7684\u4e00\u79cd\u65b0\u8303\u5f0f\uff0c\u53ef\u4ee5\u6267\u884c\u5927\u89c4\u6a21\u8fde\u7eed\u8ba1\u7b97\uff0c\u540c\u65f6\u9488\u5bf9\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u541e\u5410\u91cf\u4e24\u4e2a\u76ee\u6807\u3002\u5728\u8fd9\u79cd\u7cfb\u7edf\u4e2d\uff0c\u5bb9\u9519\u6027\u975e\u5e38\u91cd\u8981\u3002<br \/>\n\u76ee\u524d\u5df2\u77e5\u7684\u786e\u4fdd\u6709\u72b6\u6001\u5904\u7406\u7cfb\u7edf\u4e0a\u51c6\u786e\u4e00\u6b21\u8bed\u4e49\u7684\u65b9\u6cd5\u662f\u4f9d\u8d56\u4e8e\u6267\u884c\u72b6\u6001\u7684\u6574\u4f53\u4e00\u81f4\u5feb\u7167\u3002<br \/>\n\u7136\u800c\uff0c\u5728\u5b9e\u65f6\u6d41\u5904\u7406\u4e2d\u4f7f\u7528\u8be5\u5e94\u7528\u7a0b\u5e8f\u65f6\u5b58\u5728\u4e24\u4e2a\u4e3b\u8981\u7f3a\u70b9\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u540c\u671f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u6280\u6cd5\u306f\u3001\u5168\u4f53\u7684\u306a\u72b6\u614b\u306e\u4e00\u8cab\u3057\u305f\u30d3\u30e5\u30fc\u3092\u5f97\u308b\u305f\u3081\u306b\u5206\u6563\u8a08\u7b97\u306e\u5168\u4f53\u7684\u306a\u5b9f\u884c\u3092\u505c\u6b62\u3059\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5206\u6563\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306e\u65e2\u5b58\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u72b6\u614b\u306e\u4e00\u90e8\u3068\u3057\u3066\u3001\u5b9f\u884c\u30b0\u30e9\u30d5\u5168\u4f53\u3067\u30c1\u30e3\u30cd\u30eb\u307e\u305f\u306f\u672a\u51e6\u7406\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u8ee2\u9001\u4e2d\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u542b\u3080\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u3053\u308c\u306b\u306f\u5fc5\u8981\u4ee5\u4e0a\u306e\u72b6\u614b\u304c\u542b\u307e\u308c\u308b\u3002<\/p>\n<p>\u5728\u672c\u8bba\u6587\u63d0\u51fa\u7684\u7b97\u6cd5\u4e2d\uff0c\u6211\u4eec\u91cd\u70b9\u5173\u6ce8\u4e3a\u5206\u5e03\u5f0f\u7684\u6709\u72b6\u6001\u6570\u636e\u6d41\u7cfb\u7edf\u63d0\u4f9b\u8f7b\u91cf\u7ea7\u7684\u5feb\u7167\uff0c\u5e76\u4e14\u4e0e\u73b0\u6709\u65b9\u5f0f\u76f8\u6bd4\uff0c\u6027\u80fd\u5f71\u54cd\u975e\u5e38\u5c0f\u3002<br \/>\n\u5728\u63d0\u51fa\u7684\u7b97\u6cd5\u4e2d\uff0c\u6211\u4eec\u63d0\u4f9b\u4f4e\u6210\u672c\u7684\u5f02\u6b65\u72b6\u6001\u5feb\u7167\uff0c\u4ec5\u5305\u542b\u975e\u5faa\u73af\u56fe\u8fd0\u7b97\u7b26\u72b6\u6001\u3002<br \/>\n\u6b64\u5916\uff0c\u901a\u8fc7\u5c06\u4e0b\u6e38\u5907\u4efd\u5e94\u7528\u4e8e\u6240\u9009\u62d3\u6251\u7684\u90e8\u5206\uff0c\u6211\u4eec\u80fd\u591f\u5728\u6700\u5c0f\u5316\u5feb\u7167\u72b6\u6001\u7684\u540c\u65f6\u8986\u76d6\u5faa\u73af\u56fe\u7684\u60c5\u51b5\u3002<br \/>\n\u6211\u4eec\u7684\u6280\u672f\u80fd\u591f\u5728\u4e0d\u505c\u6b62\u6d41\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b\uff0c\u4ec5\u4ea7\u751f\u6781\u5c11\u7684\u8fd0\u884c\u65f6\u5f00\u9500\u3002<br \/>\n\u672c\u8bba\u6587\u7684\u8d21\u732e\u53ef\u603b\u7ed3\u5982\u4e0b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u975e\u5faa\u74b0\u30b0\u30e9\u30d5\u4e0a\u3067\u6700\u5c0f\u9650\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u5b9f\u73fe\u3059\u308b\u975e\u540c\u671f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63d0\u6848\u3057\u3066\u5b9f\u88c5\u3059\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6211\u3005\u306f\u3001\u5faa\u74b0\u30b0\u30e9\u30d5\u4e0a\u3067\u52d5\u4f5c\u3059\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4e00\u822c\u5316\u3092\u8a18\u8ff0\u3057\u5b9f\u88c5\u3059\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Apache Flink Streaming\u3092\u6bd4\u8f03\u306e\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3057\u3066\u3044\u308b\u6700\u5148\u7aef\u6280\u8853\u3068\u6bd4\u8f03\u3057\u3066\u3001\u6211\u3005\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u5229\u70b9\u3092\u793a\u3059\u3002<\/ul>\n<h3>2. \u76f8\u5173\u7814\u7a76<\/h3>\n<p>\u5728\u8fc7\u53bb\u768410\u5e74\u91cc\uff0c\u5bf9\u4e8e\u8fde\u7eed\u5904\u7406\u7cfb\u7edf\uff0c\u5df2\u7ecf\u63d0\u51fa\u4e86\u51e0\u79cd\u6062\u590d\u673a\u5236\u7684\u5efa\u8bae\u3002\u50cfDiscretized Streams\u548cComet\u8fd9\u6837\u7684\u65e0\u72b6\u6001\u5206\u5e03\u5f0f\u6279\u5904\u7406\u8ba1\u7b97\u7cfb\u7edf\uff0c\u9700\u8981\u4f9d\u8d56\u72b6\u6001\u91cd\u65b0\u8ba1\u7b97\u6765\u6a21\u62df\u8fde\u7eed\u5904\u7406\u3002\u800c\u50cfNaiad\u3001SDGs\u3001Piccolo\u3001SEEP\u8fd9\u6837\u7684\u6709\u72b6\u6001\u6570\u636e\u6d41\u7cfb\u7edf\uff0c\u5219\u4f7f\u7528\u68c0\u67e5\u70b9\u6765\u83b7\u53d6\u5168\u5c40\u6267\u884c\u540c\u6b65\u5feb\u7167\uff0c\u4ee5\u7528\u4e8e\u6545\u969c\u6062\u590d\u3002<\/p>\n<p>\u6570\u5341\u5e74\u6765\uff0cChandy\u548cLamport\u63d0\u51fa\u4e86\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u5b9e\u73b0\u4e00\u81f4\u6027\u5168\u5c40\u5feb\u7167\u7684\u95ee\u9898\uff0c\u5e76\u4e14\u8fd9\u4e2a\u95ee\u9898\u5df2\u7ecf\u88ab\u5e7f\u6cdb\u7814\u7a76\u3002<br \/>\n\u7406\u8bba\u4e0a\uff0c\u5168\u5c40\u5feb\u7167\u53cd\u6620\u4e86\u6267\u884c\u7684\u6574\u4f53\u72b6\u6001\u6216\u8005\u7279\u5b9a\u64cd\u4f5c\u7684\u53ef\u80fd\u72b6\u6001\u3002<br \/>\nNaiad\u91c7\u7528\u7684\u7b80\u5355\u800c\u8d39\u65f6\u7684\u65b9\u6cd5\u662f\u901a\u8fc73\u4e2a\u6b65\u9aa4\u6765\u6267\u884c\u540c\u6b65\u5feb\u7167\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b9f\u884c\u30b0\u30e9\u30d5\u306e\u5168\u4f53\u7684\u306a\u8a08\u7b97\u3092\u505c\u6b62<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u5b9f\u884c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u6700\u5f8c\u306b\u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u5b8c\u4e86\u3057\u305f\u3089\u5404\u30bf\u30b9\u30af\u306b\u64cd\u4f5c\u3092\u7d9a\u884c\u3059\u308b\u3088\u3046\u6307\u793a<\/ul>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u9700\u8981\u963b\u585e\u6574\u4e2a\u8ba1\u7b97\uff0c\u5e76\u4e14\u5bf9\u541e\u5410\u91cf\u548c\u7a7a\u95f4\u90fd\u6709\u5f88\u5927\u5f71\u54cd\u3002<br \/>\n\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u7531Chandy\u548cLamport\u6700\u521d\u63d0\u51fa\u7684\uff0c\u5df2\u7ecf\u5e94\u7528\u5728\u4eca\u5929\u8bb8\u591a\u7cfb\u7edf\u4e2d\uff0c\u5b83\u662f\u5728\u79ef\u6781\u6267\u884c\u4e0a\u6e38\u5907\u4efd\u7684\u540c\u65f6\u5f02\u6b65\u6267\u884c\u5feb\u7167\u3002<br \/>\n\u901a\u8fc7\u5c06\u89e6\u53d1\u8fd0\u7b97\u7b26\u548c\u901a\u9053\u72b6\u6001\u7684\u6301\u4e45\u6027\u5206\u6563\u5230\u6574\u4e2a\u6267\u884c\u56fe\u4e2d\u7684\u6807\u8bb0\u6765\u5b9e\u73b0\u3002<br \/>\n\u7136\u800c\uff0c\u8fd9\u79cd\u65b9\u6cd5\u4ecd\u7136\u5b58\u5728\u5bf9\u7a7a\u95f4\u7684\u6311\u6218\uff0c\u56e0\u4e3a\u5b83\u9700\u8981\u4e0a\u6e38\u5907\u4efd\uff0c\u5bfc\u81f4\u6062\u590d\u65f6\u95f4\u5ef6\u957f\uff0c\u9700\u8981\u91cd\u65b0\u5904\u7406\u5907\u4efd\u8bb0\u5f55\u3002<br \/>\n\u6211\u4eec\u7684\u65b9\u6cd5\u662f\u6269\u5c55\u4e86Chandy\u548cLamport\u539f\u59cb\u5f02\u6b65\u5feb\u7167\u7684\u601d\u60f3\uff0c\u4f46\u4e0d\u8003\u8651\u975e\u5faa\u73af\u56fe\u8bb0\u5f55\u7684\u5907\u4efd\u65e5\u5fd7\uff0c\u5373\u4f7f\u662f\u5faa\u73af\u56fe\uff0c\u4e5f\u53ea\u83b7\u53d6\u6700\u4f4e\u9650\u5ea6\u7684\u5907\u4efd\u65e5\u5fd7\u3002<\/p>\n<h3>3. \u80cc\u666f\uff1aApache Flink\u7684\u80cc\u666f<\/h3>\n<p>\u6211\u4eec\u73b0\u5728\u4e3a\u4e86\u786e\u4fddApache Flink Streaming\u5728Apache Flink Stack\uff08\u65e7\u79f0Stratosphere\uff09\u4e2d\u4f5c\u4e3a\u5206\u5e03\u5f0f\u6d41\u5206\u6790\u7cfb\u7edf\u5177\u5907\u6545\u969c\u5bb9\u5fcd\u6027\uff0c\u63d0\u51fa\u4e86\u8be5\u7b97\u6cd5\u3002<br \/>\nApache Flink\u7531\u4e00\u4e2a\u901a\u7528\u7684\u8fd0\u884c\u65f6\u5f15\u64ce\u7ec4\u6210\uff0c\u7528\u4e8e\u7edf\u4e00\u5904\u7406\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u6d41\u5f0f\u4f5c\u4e1a\uff0c\u8fd9\u4e9b\u4f5c\u4e1a\u7531\u6709\u72b6\u6001\u7684\u4e92\u8fde\u4efb\u52a1\u7ec4\u6210\u3002<br \/>\nFlink\u7684\u5206\u6790\u4f5c\u4e1a\u88ab\u7ec4\u7ec7\u6210\u4e00\u4e2a\u4efb\u52a1\u7684\u6709\u5411\u56fe\u3002<br \/>\n\u6570\u636e\u5143\u7d20\u662f\u4ece\u5916\u90e8\u6765\u6e90\u83b7\u53d6\u7684\uff0c\u5e76\u901a\u8fc7\u7ba1\u9053\u65b9\u5f0f\u8def\u7531\u5230\u4efb\u52a1\u56fe\u4e2d\u3002<br \/>\n\u4efb\u52a1\u57fa\u4e8e\u63a5\u6536\u5230\u7684\u8f93\u5165\u8fde\u7eed\u5730\u64cd\u4f5c\u5185\u90e8\u72b6\u6001\u5e76\u751f\u6210\u65b0\u7684\u8f93\u51fa\u3002<\/p>\n<h4>3.1 \u6d41\u64cd\u4f5c\u7f16\u7a0b\u6a21\u578b<\/h4>\n<p>Apache Flink API\u7528\u4e8e\u6d41\u5904\u7406\uff0c\u901a\u8fc7\u5c06\u65e0\u9650\u5206\u5272\u7684\u6570\u636e\u6d41\uff08\u90e8\u5206\u6709\u5e8f\u7684\u8bb0\u5f55\u5e8f\u5217\uff09\u4f5c\u4e3a\u79f0\u4e3a\u6570\u636e\u6d41\u7684\u6838\u5fc3\u6570\u636e\u62bd\u8c61\u6765\u516c\u5f00\uff0c\u4ece\u800c\u5b9e\u73b0\u590d\u6742\u7684\u6d41\u5f0f\u5206\u6790\u4f5c\u4e1a\u7684\u6784\u5efa\u3002<\/p>\n<p>DataStreams\u53ef\u4ee5\u901a\u8fc7\u4ece\u5916\u90e8\u6e90\uff08\u4f8b\u5982\u6d88\u606f\u961f\u5217\u3001\u5957\u63a5\u5b57\u6d41\u3001\u81ea\u5b9a\u4e49\u751f\u6210\u5668\uff09\u83b7\u53d6\u6570\u636e\uff0c\u6216\u8005\u5728\u5176\u4ed6\u6570\u636e\u6d41\u4e0a\u8c03\u7528\u64cd\u4f5c\u6765\u521b\u5efa\u3002<\/p>\n<p>DataStreams\u4ee5\u8bb0\u5f55\u4e3a\u5355\u4f4d\u8fdb\u884c\u589e\u91cf\u5e94\u7528\uff0c\u5e76\u652f\u6301\u591a\u4e2a\u64cd\u4f5c\u7b26\uff0c\u4f8b\u5982map\u3001filter\u548creduce\uff0c\u4ee5\u751f\u6210\u65b0\u7684DataStream\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u7b26\u91c7\u7528\u4e0a\u5c42\u51fd\u6570\u7684\u5f62\u5f0f\u3002<\/p>\n<p>\u6240\u6709\u64cd\u4f5c\u7b26\u90fd\u53ef\u4ee5\u901a\u8fc7\u5728\u6bcf\u4e2a\u6d41\u7684\u4e0d\u540c\u5206\u533a\u4e2d\u4ee5\u5e76\u884c\u5b9e\u4f8b\u7684\u65b9\u5f0f\u6267\u884c\u6765\u5e76\u884c\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u6d41\u8f6c\u6362\u7684\u5206\u5e03\u5f0f\u6267\u884c\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">val<\/span> <span class=\"nv\">env<\/span> <span class=\"k\">:<\/span> <span class=\"kt\">StreamExecutionEnvironment<\/span> <span class=\"o\">=<\/span> <span class=\"o\">...<\/span>\r\n<span class=\"nv\">env<\/span><span class=\"o\">.<\/span><span class=\"py\">setParallelism<\/span><span class=\"o\">(<\/span><span class=\"mi\">2<\/span><span class=\"o\">)<\/span>\r\n\r\n<span class=\"k\">val<\/span> <span class=\"nv\">wordStream<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">env<\/span><span class=\"o\">.<\/span><span class=\"py\">readTextFile<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">)<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">countStream<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">wordStream<\/span><span class=\"o\">.<\/span><span class=\"py\">groupBy<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span><span class=\"o\">).<\/span><span class=\"py\">count<\/span>\r\n<span class=\"nv\">countStream<\/span><span class=\"o\">.<\/span><span class=\"py\">print<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5728Apache Flink\u4e2d\u5b9e\u73b0\u7b80\u5355\u7684\u589e\u91cf\u5b57\u6570\u7edf\u8ba1\u3002<br \/>\n\u8fd9\u4e2a\u7a0b\u5e8f\u4e2d\uff0c\u5355\u8bcd\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u8bfb\u53d6\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5355\u8bcd\u7684\u5f53\u524d\u8ba1\u6570\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\u3002<br \/>\n\u8fd9\u662f\u4e00\u4e2a\u6709\u72b6\u6001\u7684\u6d41\u5f0f\u7a0b\u5e8f\uff0c\u6e90\u9700\u8981\u8bc6\u522b\u5f53\u524d\u6587\u4ef6\u504f\u79fb\u91cf\uff0c\u8ba1\u6570\u5668\u9700\u8981\u5c06\u6bcf\u4e2a\u5355\u8bcd\u7684\u5f53\u524d\u8ba1\u6570\u4f5c\u4e3a\u5185\u90e8\u72b6\u6001\u7ef4\u62a4\u3002<\/p>\n<h4>3.2 \u5206\u6563\u6570\u636e\u6d41\u6267\u884c<\/h4>\n<p>\u5047\u8bbe\u9876\u70b9$T$\u4ee3\u8868\u4efb\u52a1\uff0c\u8fb9$E$\u4ee3\u8868\u4efb\u52a1\u4e4b\u95f4\u7684\u6570\u636e\u901a\u9053\u3002<br \/>\n\u5f53\u7528\u6237\u6267\u884c\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u6240\u6709\u7684\u64cd\u4f5c\u7b26\u90fd\u4f1a\u88ab\u7f16\u8bd1\u6210\u539f\u5219\u4e0a\u662f\u6709\u5411\u56fe$G=(T, E)$\u7684\u6267\u884c\u56fe\u3002<br \/>\n\u4ee5\u589e\u91cf\u5355\u8bcd\u8ba1\u6570\u4e3a\u4f8b\uff0c\u6267\u884c\u56fe\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/30-0.jpeg\" alt=\"Figure01.JPG\" \/><\/div>\n<p>\u5c31\u50cf\u4e0a\u6587\u6240\u8ff0\uff0c\u6bcf\u4e2a\u64cd\u4f5c\u5458\u5b9e\u4f8b\u90fd\u88ab\u5c01\u88c5\u5728\u5404\u81ea\u7684\u4efb\u52a1\u4e2d\u3002<br \/>\n\u4efb\u52a1\u53ef\u4ee5\u88ab\u5206\u7c7b\u4e3a\u4ece\u7cfb\u7edf\u5916\u90e8\u83b7\u53d6\u6570\u636e\u7684\u6e90\u3002<br \/>\n\u6b64\u5916\uff0cM\u8868\u793a\u7531\u4efb\u52a1\u5728\u5e76\u884c\u6267\u884c\u671f\u95f4\u4f20\u9012\u7684\u6240\u6709\u8bb0\u5f55\u96c6\u3002<br \/>\n\u6bcf\u4e2a\u4efb\u52a1t\u2208T\u90fd\u5c01\u88c5\u4e86\u64cd\u4f5c\u5458\u5b9e\u4f8b\u7684\u72ec\u7acb\u6267\u884c\uff0c\u5e76\u7531\u4ee5\u4e0b\u5185\u5bb9\u6784\u6210\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u3068\u51fa\u529b\u30c1\u30e3\u30cd\u30eb\u306e\u30bb\u30c3\u30c8\uff1a$It\u3001Ot\u2286E$<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30aa\u30da\u30ec\u30fc\u30bf\u72b6\u614b\uff1a$st$<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30e6\u30fc\u30b6\u30fc\u5b9a\u7fa9\u95a2\u6570\uff1a$ft$<\/ul>\n<p>\u6570\u636e\u91c7\u96c6\u662f\u6309\u7167\u62c9\u53d6\u65b9\u5f0f\u8fdb\u884c\u7684\u3002<br \/>\n\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u6bcf\u4e2a\u4efb\u52a1\u90fd\u4f1a\u6d88\u8017\u8f93\u5165\u8bb0\u5f55\uff0c\u66f4\u65b0\u64cd\u4f5c\u5458\u72b6\u6001\uff0c\u5e76\u6839\u636e\u7528\u6237\u5b9a\u4e49\u7684\u51fd\u6570\u751f\u6210\u65b0\u8bb0\u5f55\u3002<br \/>\n\u66f4\u5177\u4f53\u5730\u8bf4\uff0c\u5bf9\u4e8e\u4efb\u52a1$t\u2208T$\u63a5\u6536\u5230\u7684\u6bcf\u4e2a\u8bb0\u5f55$r\u2208M$\uff0c\u4f1a\u751f\u6210\u65b0\u7684\u72b6\u6001$st&#8217;$\u548c\u8f93\u51fa\u8bb0\u5f55\u96c6\u5408$D\u2286M$\uff0c\u751f\u6210\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code>ft\uff1ast\u3001r |\u2192 &lt;st'\u3001D&gt;\r\n<\/code><\/pre>\n<h3>4. \u5f02\u6b65\u6805\u680f\u5feb\u7167<\/h3>\n<p>\u5206\u6563\u5904\u7406\u7cfb\u7edf\u9700\u8981\u5177\u5907\u5bf9\u6545\u969c\u8fdb\u884c\u6062\u590d\u7684\u673a\u5236\u3002<br \/>\n\u63d0\u4f9b\u8fd9\u79cd\u6062\u590d\u673a\u5236\u7684\u65b9\u6cd5\u662f\u5b9a\u671f\u83b7\u53d6\u6267\u884c\u56fe\u7684\u5feb\u7167\uff0c\u5e76\u5728\u4e4b\u540e\u7528\u4e8e\u4ece\u6545\u969c\u4e2d\u6062\u590d\u3002<br \/>\n\u5feb\u7167\u662f\u6267\u884c\u56fe\u7684\u5168\u5c40\u72b6\u6001\uff0c\u4fdd\u5b58\u4e86\u4ece\u7279\u5b9a\u6267\u884c\u72b6\u6001\u6062\u590d\u8ba1\u7b97\u6240\u9700\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n<h4>4.1 \u95ee\u9898\u7684\u5b9a\u4e49<\/h4>\n<p>\u5c06\u6267\u884c\u56feG=(T, E)\u7684\u5168\u5c40\u5feb\u7167G*=(T*, E*)\u5b9a\u4e49\u4e3a\u6240\u6709\u4efb\u52a1\u72b6\u6001T*\u548c\u8fb9\u72b6\u6001E*\u7684\u96c6\u5408\u3002\u66f4\u8be6\u7ec6\u5730\u8bf4\uff0cT*\u7531\u6240\u6709\u64cd\u4f5c\u7b26\u7684\u72b6\u6001st*\u2208T*\uff1a\u2200t\u2208T\u6784\u6210\u3002\u540c\u6837\uff0cE*\u662f\u6240\u6709\u901a\u9053\u72b6\u6001e*\u2208E\u7684\u96c6\u5408\u3002\u8fd9\u91cc\uff0ce*\u7531\u5728e\u4e0a\u4f20\u8f93\u7684\u8bb0\u5f55\u6784\u6210\u3002<\/p>\n<p>\u5982Tel\u6240\u8ff0\uff0c\u4e3a\u4e86\u786e\u4fdd\u7ed3\u675f\u6027\u3001\u53ef\u6267\u884c\u6027\u548c\u6062\u590d\u540e\u7684\u6b63\u786e\u7ed3\u679c\uff0c\u6bcf\u4e2a\u5feb\u7167$G*$\u90fd\u9700\u8981\u4fdd\u7559\u6240\u9700\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u5f53\u6240\u6709\u8fdb\u7a0b\u90fd\u5b58\u6d3b\u65f6\uff0c\u5feb\u7167\u7b97\u6cd5\u5728\u5f00\u59cb\u540e\u4e00\u5b9a\u65f6\u95f4\u5185\u4fdd\u8bc1\u6700\u7ec8\u7ed3\u675f\u3002<\/p>\n<p>\u53ef\u884c\u6027\u8868\u793a\u5bf9\u5feb\u7167\u7684\u6709\u6548\u6027\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u5feb\u7167\u5904\u7406\u671f\u95f4\uff0c\u4fe1\u606f\u4e0e\u8ba1\u7b97\u6ca1\u6709\u4e22\u5931\u3002<\/p>\n<p>\u4e8b\u5b9e\u4e0a\uff0c\u4ece\u5feb\u7167\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u4efb\u52a1\u4ea4\u4ed8\u7684\u8bb0\u5f55\u4e5f\u5e94\u8be5\u88ab\u83b7\u53d6\uff0c\u8fd9\u610f\u5473\u7740\u56e0\u679c\u5173\u7cfb\u5728\u5feb\u7167\u4e2d\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n<h4>\u5728\u975e\u5faa\u73af\u56fe\u6570\u636e\u6d41\u4e2d\u7684\u5904\u7406<\/h4>\n<p>\u5728\u975e\u5faa\u73af\u56fe\u6570\u636e\u6d41\u4e2d\uff0c\u901a\u8fc7\u5c06\u6267\u884c\u5206\u4e3a\u591a\u4e2a\u9636\u6bb5\uff0c\u53ef\u4ee5\u5728\u4e0d\u83b7\u53d6\u901a\u9053\u72b6\u6001\u7684\u60c5\u51b5\u4e0b\u83b7\u53d6\u5feb\u7167\u3002<br 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\/>\n\u6211\u4eec\u7b97\u6cd5\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5728\u4fdd\u6301\u8fde\u7eed\u6570\u636e\u6355\u83b7\u7684\u540c\u65f6\uff0c\u4f7f\u7528\u5206\u9636\u6bb5\u7684\u5feb\u7167\u6765\u521b\u5efa\u76f8\u540c\u7684\u5feb\u7167\u3002<\/p>\n<p>\u672c\u8bba\u6587\u63d0\u51fa\u7684\u7b97\u6cd5\u901a\u8fc7\u5468\u671f\u6027\u6ce8\u5165\u7279\u6b8a\u7684\u6805\u680f\u6807\u8bb0\u5230\u8f93\u5165\u6570\u636e\u6d41\u4e2d\uff0c\u6765\u6a21\u62df\u8fde\u7eed\u6570\u636e\u6d41\u6267\u884c\u4e2d\u7684\u9636\u6bb5\u5212\u5206\uff0c\u5e76\u5c06\u6574\u4e2a\u6267\u884c\u56fe\u53d1\u9001\u5230\u7ec8\u70b9\u3002<br \/>\n\u5feb\u7167\u662f\u9010\u6b65\u6784\u5efa\u7684\uff0c\u6bcf\u5f53\u6bcf\u4e2a\u4efb\u52a1\u63a5\u6536\u5230\u8868\u793a\u6267\u884c\u9636\u6bb5\u7684\u6805\u680f\u6807\u8bb0\u65f6\u3002<br \/>\n\u6b64\u5916\uff0c\u7b97\u6cd5\u8fd8\u505a\u51fa\u4ee5\u4e0b\u5047\u8bbe\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3042\u308b\u7279\u5b9a\u306e\u30bf\u30b9\u30af\u9593\u3092\u63a5\u7d9a\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c1\u30e3\u30cd\u30eb\u306f\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001FIFO\u914d\u4fe1\u9806\u5e8f\u3092\u5c0a\u91cd\u3057\u3001\u30d6\u30ed\u30c3\u30af\u304a\u3088\u3073\u30d6\u30ed\u30c3\u30af\u89e3\u9664\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>\u30c1\u30e3\u30cd\u30eb\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3068\u3001\u3059\u3079\u3066\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30d0\u30c3\u30d5\u30a1\u3055\u308c\u308b\u304c\u3001\u30d6\u30ed\u30c3\u30af\u304c\u89e3\u9664\u3055\u308c\u308b\u307e\u3067\u914d\u4fe1\u3055\u308c\u306a\u3044\u3002<\/p>\n<p>\u30bf\u30b9\u30af\u306f\u3001\u30d6\u30ed\u30c3\u30af\u3001\u30d6\u30ed\u30c3\u30af\u89e3\u9664\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u9001\u4fe1\u306a\u3069\u306e\u30c1\u30e3\u30cd\u30eb\u306e\u64cd\u4f5c\u3092\u5b9f\u884c\u53ef\u80fd\u3002<\/p>\n<p>\u4e0b\u6d41\u5168\u3066\u306b\u5bfe\u3057\u3066\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u3092\u9001\u4fe1\u3059\u308b\u3088\u3046\u306a\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u7684\u306a\u4f7f\u7528\u3082\u53ef\u80fd\u3002<\/p>\n<p>ABS\u7b97\u6cd5\u7684\u6267\u884c\u8fc7\u7a0b\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/46-0.jpeg\" alt=\"Figure02.JPG\" \/><\/div>\n<p>\u4e2d\u592e\u534f\u8c03\u5668\u5b9a\u671f\u5411\u6240\u6709\u6e90\u4efb\u52a1\u53d1\u9001\u5c4f\u969c\u6807\u8bb0\u3002<br \/>\n\u5f53\u6e90\u4efb\u52a1\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u65f6\uff0c\u83b7\u53d6\u5f53\u524d\u72b6\u6001\u7684\u5feb\u7167\uff0c\u5e76\u5c06\u5c4f\u969c\u6807\u8bb0\u5e7f\u64ad\u5230\u6240\u6709\u8f93\u51fa\u3002\uff1a$a)$<br \/>\n\u975e\u6e90\u4efb\u52a1\u5982\u679c\u4ece\u5176\u8f93\u5165\u4e4b\u4e00\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\uff0c\u5219\u963b\u585e\u8be5\u8f93\u5165\uff0c\u76f4\u5230\u4ece\u6240\u6709\u8f93\u5165\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u3002\uff1a$b)$<br \/>\n\u5f53\u6240\u6709\u8f93\u5165\u90fd\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u65f6\uff0c\u4efb\u52a1\u83b7\u53d6\u5f53\u524d\u72b6\u6001\u7684\u5feb\u7167\uff0c\u5e76\u5c06\u5c4f\u969c\u6807\u8bb0\u5e7f\u64ad\u5230\u6240\u6709\u8f93\u51fa\u3002\uff1a$c)$<br \/>\n\u7136\u540e\uff0c\u4efb\u52a1\u89e3\u9664\u8f93\u5165\u7684\u963b\u585e\u5e76\u7ee7\u7eed\u8ba1\u7b97\u3002\uff1a$d)$<\/p>\n<p>\u5177\u6709\u5b8c\u6574\u7684\u5168\u5c40\u5feb\u7167$G*=(T*, E*)$\uff0c\u5176\u7531\u4ec5\u4ec5\u5177\u6709$E*=0$\u7684\u6240\u6709\u64cd\u4f5c\u72b6\u6001$T*$\u6784\u6210\u3002<\/p>\n<p>\u8bc1\u660e\uff1a\u5982\u524d\u6240\u8ff0\uff0c\u5feb\u7167\u7b97\u6cd5\u9700\u8981\u4fdd\u8bc1\u7ec8\u6b62\u6027\u548c\u53ef\u884c\u6027\u3002\u7ec8\u6b62\u6027\u7531\u901a\u9053\u548c\u975e\u5faa\u73af\u56fe\u7684\u5c5e\u6027\u4fdd\u8bc1\u3002\u901a\u9053\u7684\u53ef\u9760\u6027\u4fdd\u8bc1\u4e86\u53ea\u8981\u4efb\u52a1\u5b58\u5728\uff0c\u6240\u6709\u53d1\u9001\u7684\u5c4f\u969c\u6807\u8bb0\u6700\u7ec8\u4f1a\u88ab\u63a5\u6536\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u59cb\u7ec8\u5b58\u5728\u6e90\u8def\u5f84\uff0c\u975e\u5faa\u73af\u56fe\u4e2d\u7684\u6240\u6709\u4efb\u52a1\u6700\u7ec8\u90fd\u4f1a\u4ece\u6240\u6709\u8f93\u5165\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u5e76\u83b7\u53d6\u5feb\u7167\u3002<\/p>\n<p>\u53ea\u8981\u80fd\u591f\u663e\u793a\u5168\u5c40\u5feb\u7167\u7684\u64cd\u4f5c\u5458\u72b6\u6001\u5df2\u7ecf\u5904\u7406\u5230\u6700\u540e\u9636\u6bb5\u7684\u8bb0\u5f55\u5386\u53f2\uff0c\u5c31\u8db3\u591f\u8bf4\u660e\u5176\u53ef\u5b9e\u73b0\u6027\u3002\u8fd9\u662f\u7531\u4e8e\u901a\u9053\u7684FIFO\u6392\u5e8f\u7279\u6027\u4ee5\u53ca\u5728\u9636\u6bb5\u540e\u8fdb\u884c\u5feb\u7167\u4e4b\u524d\u5904\u7406\u7684\u65e0\u5feb\u7167\u8bb0\u5f55\uff08\u63a5\u7eed\u4e8e\u969c\u788d\u7684\u8bb0\u5f55\uff09\u6240\u4fdd\u8bc1\u7684\u3002<\/p>\n<h4>4.3 \u5728\u5faa\u73af\u56fe\u6570\u636e\u6d41\u4e2d\u7684\u5e94\u5bf9\u65b9\u6cd5<\/h4>\n<p>\u5982\u679c\u6267\u884c\u56fe\u4e2d\u5b58\u5728\u5faa\u73af\u5468\u671f\uff0c\u524d\u9762\u63d0\u5230\u7684ABS\u7b97\u6cd5\u4e0d\u4f1a\u8fdb\u5165\u6b7b\u9501\uff0c\u56e0\u4e3a\u5faa\u73af\u5468\u671f\u5185\u7684\u4efb\u52a1\u4f1a\u65e0\u9650\u671f\u5730\u7b49\u5f85\u6240\u6709\u8f93\u5165\u7684\u5c4f\u969c\u3002\u6b64\u5916\uff0c\u5faa\u73af\u5468\u671f\u5185\u6b63\u5728\u4f20\u8f93\u7684\u8bb0\u5f55\u4e0d\u4f1a\u5305\u542b\u5728\u5feb\u7167\u4e2d\uff0c\u56e0\u6b64\u4e0d\u4f1a\u5f71\u54cd\u53ef\u884c\u6027\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u786e\u4fdd\u53ef\u884c\u6027\uff0c\u5e76\u5728\u6062\u590d\u65f6\u5c06\u8fd9\u4e9b\u8bb0\u5f55\u4ee5\u5faa\u73af\u5468\u671f\u5185\u7684\u4f20\u8f93\u4e2d\u72b6\u6001\u8fdb\u884c\u6062\u590d\uff0c\u9700\u8981\u5c06\u5728\u4e00\u4e2a\u5faa\u73af\u5468\u671f\u5185\u751f\u6210\u7684\u8bb0\u5f55\u5305\u542b\u5728\u5feb\u7167\u4e2d\u3002\u5f53\u5904\u7406\u5faa\u73af\u56fe\u65f6\uff0c\u53ef\u4ee5\u6269\u5c55\u57fa\u672c\u7b97\u6cd5\uff0c\u5982\u4e0b\u6240\u793a\uff0c\u800c\u4e0d\u4f1a\u5f15\u8d77\u989d\u5916\u7684\u963b\u585e\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5728\u9759\u6001\u5206\u6790\u4e2d\u786e\u5b9a\u6267\u884c\u56fe\u4e2d\u5faa\u73af\u4e2d\u7684\u53cd\u5411\u8fb9 L\u3002<br \/>\n\u6839\u636e\u63a7\u5236\u6d41\u56fe\u7406\u8bba\uff0c\u6709\u5411\u56fe\u7684\u53cd\u5411\u8fb9\u662f\u5728\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\u671f\u95f4\u5230\u8fbe\u5df2\u8bbf\u95ee\u8fc7\u7684\u4efb\u52a1\u7684\u8fb9\u3002<br \/>\n\u6267\u884c\u56fe G(T, E\/L) \u662f\u5305\u542b\u5faa\u73af\u56fe\u4e2d\u6240\u6709\u4efb\u52a1\u7684\u6709\u5411\u65e0\u73af\u56fe\u3002<br \/>\n\u4ece\u8fd9\u4e2a\u6709\u5411\u65e0\u73af\u56fe\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u7b97\u6cd5\u7684\u884c\u4e3a\u4e0e\u4e4b\u524d\u76f8\u540c\uff0c\u4f46\u5728\u5feb\u7167\u671f\u95f4\u8fd8\u4f1a\u83b7\u53d6\u4ece\u53cd\u5411\u8fb9\u63a5\u6536\u5230\u7684\u8bb0\u5f55\u7684\u4e0b\u6e38\u5907\u4efd\u3002<br \/>\n\u8fd9\u5728\u6bcf\u4e2a\u4efb\u52a1 t \u4e2d\u4f5c\u4e3a\u6d41\u7684\u6d88\u8d39\u8005\u6267\u884c\u3002\u8981\u6ee1\u8db3 Lt \u2286 It\u3002<br 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\/><\/div>\n<p>\u5177\u6709\u540e\u9000\u8fb9\u8f93\u5165\u7684\u4efb\u52a1\uff0c\u5728\u4ece\u975e\u81ea\u8eab\u540e\u9000\u8fb9\u7684\u901a\u9053\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u65f6\uff0c\u4f1a\u521b\u5efa\u72b6\u6001\u7684\u672c\u5730\u526f\u672c\uff1a$b)$ \u540c\u65f6\uff0c\u4ece\u8fd9\u4e00\u70b9\u5f00\u59cb\uff0c\u5b83\u4eec\u8bb0\u5f55\u63a5\u6536\u5230\u7684\u6240\u6709\u8bb0\u5f55\uff0c\u6765\u81ea\u5b83\u4eec\u7684\u540e\u9000\u8fb9\u3002\u7136\u540e\uff0c\u5728\u4ece\u540e\u9000\u8fb9\u63a5\u6536\u5230\u5c4f\u969c\u6807\u8bb0\u65f6\uff0c\u5b83\u4eec\u4ee5\u81f3\u6b64\u63a5\u6536\u5230\u7684\u8bb0\u5f55\u4f5c\u4e3a\u5feb\u7167\u8fdb\u884c\u4fdd\u5b58\uff1a$c)$ \u6700\u7ec8\u7684\u5168\u5c40\u5feb\u7167$G*=(T*, E\u00a0\/ L*)$\u5c06\u53ea\u5305\u542b\u6240\u6709\u4efb\u52a1\u72b6\u6001$T*$\u548c\u6b63\u5728\u4f20\u8f93\u4e2d\u7684\u540e\u9000\u8fb9\u7684\u8bb0\u5f55$L*\u2282E*$\u3002<\/p>\n<p>\u8bc1\u660e\uff1a<br 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class=\"post-ul\">\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u5404\u30bf\u30b9\u30af\u72b6\u614b\u306f\u3001\u901a\u5e38\u306e\u5165\u529b\u3067\u53d7\u3051\u53d6\u3063\u305f\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u304b\u3089\u306e\u4e8b\u5f8c\u30a4\u30d9\u30f3\u30c8\u3092\u51e6\u7406\u3059\u308b\u524d\u306b\u53d6\u3089\u308c\u305f\u305d\u308c\u305e\u308c\u306e\u30bf\u30b9\u30af\u306e\u72b6\u614b\u30b3\u30d4\u30fc\u3068\u306a\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u30c0\u30a6\u30f3\u30b9\u30c8\u30ea\u30fc\u30e0\u30ed\u30b0\u306f\u5b8c\u5168\u3067\u3042\u308a\u3001FIFO\u4fdd\u8a3c\u306e\u305f\u3081\u306b\u5f8c\u9000\u30a8\u30c3\u30b8\u3067\u53d7\u4fe1\u3055\u308c\u305f\u30d0\u30ea\u30a2\u30de\u30fc\u30ab\u30fc\u53d7\u4fe1\u524d\u306b\u53d7\u4fe1\u3057\u305f\u3001\u3059\u3079\u3066\u306e\u8ee2\u9001\u4e2d\u306e\u30dd\u30b9\u30c8\u30b7\u30e7\u30c3\u30c8\u30ec\u30b3\u30fc\u30c9\u3092\u542b\u3080\u3002<\/ul>\n<h3>5. \u707e\u5bb3\u6062\u590d<\/h3>\n<p>\u5173\u4e8e\u969c\u788d\u6062\u590d\u7684\u64cd\u4f5c\uff0c\u6211\u4eec\u5c06\u8fdb\u884c\u89e3\u91ca\u3002<br \/>\n\u5728\u5177\u6709\u4e00\u81f4\u6027\u7684\u5feb\u7167\u4e2d\uff0c\u6709\u51e0\u79cd\u80fd\u591f\u5de5\u4f5c\u7684\u969c\u788d\u6062\u590d\u65b9\u5f0f\u3002<br 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class=\"post-ul\">\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u304b\u3089\u306e\u30ec\u30b3\u30fc\u30c9\u53d6\u308a\u8fbc\u307f\u3092\u958b\u59cb<\/ul>\n<p>\u901a\u8fc7\u91cd\u65b0\u8c03\u5ea6\u4e0a\u6e38\u7684\u4efb\u52a1\uff08\u5c06\u4f9d\u8d56\u4e8e\u5931\u8d25\u7684\u8f93\u51fa\u901a\u9053\u7684\u4efb\u52a1\u6301\u6709\u7684\u4efb\u52a1\uff09\u5e76\u5c06\u6bcf\u4e2a\u4e0a\u6e38\u4efb\u52a1\u91cd\u65b0\u8c03\u5ea6\u5230\u6e90\u5934\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e0eTimeStream\u7c7b\u4f3c\u7684\u56fe\u5f62\u90e8\u5206\u6062\u590d\u3002\u4ee5\u4e0b\u56fe\u8868\u663e\u793a\u4e86\u6062\u590d\u8ba1\u5212\u7684\u793a\u4f8b\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/64-0.jpeg\" alt=\"Figure04.JPG\" \/><\/div>\n<p>\u4e3a\u4e86\u63d0\u4f9b\u4ec5\u4e00\u6b21\u7684\u6d88\u606f\u5904\u7406\u8bed\u4e49\uff0c\u4e3a\u907f\u514d\u91cd\u65b0\u8ba1\u7b97\uff0c\u6240\u6709\u4e0b\u6e38\u4efb\u52a1\u90fd\u9700\u8981\u5ffd\u7565\u91cd\u590d\u8bb0\u5f55\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u7c7b\u4f3c\u4e8eSDG\u7684\u65b9\u5f0f\uff0c\u6807\u8bb0\u5177\u6709\u7279\u5b9a\u5e8f\u5217\u53f7\u7684\u6765\u81ea\u6e90\u5934\u7684\u8bb0\u5f55\u3002\u56e0\u6b64\uff0c\u6bcf\u4e2a\u4e0b\u6e38\u4efb\u52a1\u90fd\u53ef\u4ee5\u4e22\u5f03\u5df2\u7ecf\u5904\u7406\u8fc7\u7684\u8bb0\u5f55\u4e2d\u5e8f\u5217\u53f7\u8f83\u5c0f\u7684\u8bb0\u5f55\u3002<\/p>\n<h3>6. \u5b9e\u65bd<\/h3>\n<p>\u4e3a\u4e86\u5728\u6d41\u5904\u7406\u65f6\u63d0\u4f9bExactly once\u7684\u5904\u7406\u8bed\u4e49\uff0c\u6211\u4eec\u5bf9Apache Flink\u8fdb\u884c\u4e86ABS\u7b97\u6cd5\u7684\u5b9e\u73b0\u3002<br \/>\n\u5f53\u524d\u7684\u5b9e\u73b0\u4e0d\u4f1a\u5c06\u963b\u585e\u7684\u901a\u9053\u4e2d\u7684\u6240\u6709\u63a5\u6536\u8bb0\u5f55\u90fd\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u800c\u662f\u5c06\u5176\u5b58\u50a8\u5728\u786c\u76d8\u4e0a\uff0c\u4ee5\u63d0\u9ad8\u53ef\u6269\u5c55\u6027\u3002<br \/>\n\u8fd9\u79cd\u65b9\u6cd5\u4fdd\u8bc1\u4e86\u9c81\u68d2\u6027\uff0c\u4f46\u4f1a\u589e\u52a0ABS\u7b97\u6cd5\u5728\u6267\u884c\u65f6\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u4e3a\u4e86\u533a\u522b\u64cd\u4f5c\u5458\u7684\u72b6\u6001\u548c\u6570\u636e\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u660e\u786e\u7684OperatorState\u63a5\u53e3\uff0c\u8be5\u63a5\u53e3\u5305\u542b\u4e86\u7528\u4e8e\u66f4\u65b0\u548c\u83b7\u53d6\u64cd\u4f5c\u5458\u72b6\u6001\u7684\u65b9\u6cd5\u3002<br \/>\n\u6b64\u5916\uff0c\u4e3a\u4e86\u652f\u6301\u57fa\u4e8e\u504f\u79fb\u91cf\u7684\u6e90\u548c\u805a\u5408\uff0c\u5728Apache Flink\u4e2d\u63d0\u4f9b\u4e86\u7528\u4e8e\u72b6\u6001\u64cd\u4f5c\u5458\u7684OperatorState\u5b9e\u73b0\u3002<\/p>\n<p>\u5feb\u7167\u534f\u8c03\u5668\u662f\u4ee5\u4f5c\u4e1a\u7ba1\u7406\u5668\u7684\u89d2\u8272\u8fdb\u7a0b\u5b9e\u73b0\u7684\uff0c\u5b83\u8d1f\u8d23\u7ef4\u62a4\u5355\u4e2a\u4f5c\u4e1a\u7684\u6267\u884c\u56fe\u7684\u5168\u5c40\u72b6\u6001\u3002<br \/>\n\u534f\u8c03\u5668\u4f1a\u5b9a\u671f\u5411\u6267\u884c\u56fe\u7684\u6240\u6709\u6e90\u5934\u63d2\u5165\u5c4f\u969c\u6807\u8bb0\u3002<br \/>\n\u5728\u91cd\u65b0\u542f\u52a8\u6216\u91cd\u65b0\u914d\u7f6e\u65f6\uff0c\u6700\u540e\u4e00\u4e2a\u5feb\u7167\u88ab\u6062\u590d\u5230\u8fd0\u7b97\u7b26\u4e0a\uff0c\u8be5\u5feb\u7167\u662f\u4ece\u5206\u5e03\u5f0f\u5185\u5b58\u6301\u4e45\u5b58\u50a8\u4e2d\u6062\u590d\u7684\u3002<\/p>\n<h3>7. \u8bc4\u4ef7<\/h3>\n<p>\u8bc4\u4f30\u7684\u76ee\u7684\u662f\u6bd4\u8f83\u5728ABS\u548cNaiad\u4e2d\u91c7\u7528\u7684\u5168\u5c40\u540c\u6b65\u5feb\u7167\u7b97\u6cd5\u7684\u8fd0\u884c\u65f6\u5f00\u9500\uff0c\u5e76\u8fdb\u4e00\u6b65\u8bc4\u4f30\u7b97\u6cd5\u5728\u591a\u4e2a\u8282\u70b9\u4e0a\u7684\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<h4>7.1 \u8bc4\u4f30\u73af\u5883<\/h4>\n<p>\u7528\u4e8e\u8bc4\u4f30\u7684\u6267\u884c\u62d3\u6251\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/74-0.jpeg\" alt=\"Figure05.JPG\" \/><\/div>\n<p>\u8fd9\u4e2a\u6267\u884c\u75316\u4e2a\u4e0d\u540c\u7684\u64cd\u4f5c\u7b26\u7ec4\u6210\uff0c\u6bcf\u4e2a\u64cd\u4f5c\u7b26\u5177\u6709\u4e0e\u96c6\u7fa4\u8282\u70b9\u6570\u76f8\u7b49\u7684\u5e76\u884c\u6027\u3002<br \/>\n\u4e5f\u5c31\u662f\u8bf4\uff0c$6 * \u96c6\u7fa4\u8282\u70b9\u6570 = \u4efb\u52a1\u6570$\u3002<br \/>\n\u8fd9\u4e2a\u6267\u884c\u5305\u542b\u4e863\u4e2a\u5b8c\u6574\u7684\u7f51\u7edc\u6d17\u724c\uff0c\u5e76\u4e14\u9a8c\u8bc1\u4e86\u901a\u9053\u5757\u5728ABS\u4e2d\u7684\u5f71\u54cd\u3002<br \/>\n\u6e90\u4ee3\u7801\u751f\u6210\u4e86\u603b\u517110\u4ebf\u6761\u8bb0\u5f55\uff0c\u5e76\u5728\u6e90\u5b9e\u4f8b\u4e4b\u95f4\u5747\u5300\u5206\u5e03\u3002<br \/>\n\u64cd\u4f5c\u7b26\u7684\u72b6\u6001\u5728\u62d3\u6251\u4e2d\u662f\u6309\u952e\u805a\u5408\u548c\u6e90\u504f\u79fb\u8fdb\u884c\u7684\u3002<br \/>\n\u8bc4\u4f30\u5728Amazon EC2\u96c6\u7fa4\u4e0a\u4f7f\u7528\u6700\u591a40\u4e2am3.medium\u5b9e\u4f8b\u8fdb\u884c\u3002<\/p>\n<p>\u6211\u4eec\u4f7f\u7528\u4e0d\u540c\u7684\u5feb\u7167\u65b9\u5f0f\uff0c\u5373ABS\u548c\u540c\u6b65\u5feb\u7167\uff0c\u4ee5\u4e0d\u540c\u7684\u5feb\u7167\u95f4\u9694\u6d4b\u91cf\u8fd0\u884c\u4e2d\u8bc4\u4f30\u4f5c\u4e1a\u7684\u8fd0\u884c\u65f6\u5f00\u9500\u3002<br \/>\n\u4e3a\u4e86\u8fdb\u884c\u6bd4\u8f83\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u5728Apache Flink\u4e0a\u4f7f\u7528\u7684\u4e0eNaiad\u4e2d\u4f7f\u7528\u7684\u540c\u6b65\u5feb\u7167\u521b\u5efa\u7b97\u6cd5\u76f8\u540c\u7684\u7b97\u6cd5\u3002<br \/>\n\u8fd9\u4e2a\u5b9e\u9a8c\u662f\u5728\u4f7f\u752810\u4e2a\u8282\u70b9\u7684\u96c6\u7fa4\u4e0a\u8fd0\u884c\u7684\u3002<br \/>\n\u4e3a\u4e86\u8bc4\u4f30\u7b97\u6cd5\u7684\u53ef\u4f38\u7f29\u6027\uff0c\u6211\u4eec\u5728\u5904\u7406\u4e00\u5b9a\u6570\u91cf\u7684\u8f93\u5165\u8bb0\u5f55\uff0810\u4ebf\u6761\uff09\u7684\u540c\u65f6\uff0c\u5c06\u62d3\u6251\u7684\u5e76\u884c\u6027\u4ece5\u4e2a\u8282\u70b9\u53d8\u5316\u523040\u4e2a\u8282\u70b9\u3002<\/p>\n<h4>7.2 \u8bc4\u4ef7\u7ed3\u679c<\/h4>\n<p>\u4ee5\u4e0b\u56fe\u8868\u5c55\u793a\u4e86\u4e24\u79cd\u7b97\u6cd5\u7684\u57fa\u51c6\uff08\u65e0\u5bb9\u9519\u6027\uff09\u5bf9\u8fd0\u884c\u65f6\u7684\u5f71\u54cd\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/79-0.jpeg\" alt=\"Figure06.JPG\" \/><\/div>\n<p>\u5f53\u4f7f\u7528\u7684\u5feb\u7167\u95f4\u9694\u8f83\u5c0f\u65f6\uff0c\u5bf9\u6574\u4f53\u6027\u80fd\u7684\u5f71\u54cd\u5c24\u4e3a\u663e\u8457\uff0c\u8fd9\u662f\u56e0\u4e3a\u4e3a\u4e86\u83b7\u53d6\u5168\u5c40\u5feb\u7167\uff0c\u7cfb\u7edf\u9700\u8981\u5904\u7406\u5927\u91cf\u7684\u6570\u636e\u800c\u5bfc\u81f4\u4ea7\u751f\u66f4\u591a\u7684\u7a7a\u95f2\u65f6\u95f4\u3002ABS\u4ee5\u8fde\u7eed\u6267\u884c\u7684\u65b9\u5f0f\u6765\u6301\u7eed\u5de5\u4f5c\uff0c\u5728\u4e0d\u963b\u585e\u6574\u4f53\u6267\u884c\u7684\u540c\u65f6\u4fdd\u6301\u7a33\u5b9a\u7684\u541e\u5410\u91cf\uff0c\u6240\u4ee5\u5bf9\u8fd0\u884c\u65f6\u7684\u5f71\u54cd\u8f83\u5c0f\u3002\u5f53\u4f7f\u7528\u66f4\u5927\u7684\u5feb\u7167\u95f4\u9694\u65f6\uff0c\u540c\u6b65\u7b97\u6cd5\u7684\u5f71\u54cd\u5c31\u4e0d\u90a3\u4e48\u91cd\u8981\u4e86\u3002\u7136\u800c\uff0c\u5728\u7a81\u53d1\u60c5\u51b5\u4e0b\uff0c\u4f8b\u5982\u5728\u4f7f\u7528\u540c\u6b65\u5feb\u7167\u65b9\u5f0f\u65f6\uff0c\u5e38\u5e38\u8fdd\u53cdSLA\uff0c\u56e0\u4e3a\u5f88\u591a\u5bf9\u4e8e\u5b9e\u65f6\u4fdd\u8bc1\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u5165\u4fb5\u68c0\u6d4b\u6d41\u6c34\u7ebf\uff0c\u5ef6\u8fdf\u975e\u5e38\u91cd\u8981\u3002\u5728\u4e0b\u56fe\u4e2d\uff0c\u6211\u4eec\u6bd4\u8f83\u4e86\u6267\u884cABS\u7684\u62d3\u6251\u7ed3\u6784\u548c\u57fa\u51c6\u7ebf\uff0c\u5bf9\u4e8e3\u79d2\u7684\u5feb\u7167\u95f4\u9694\uff08\u4e0d\u8003\u8651\u5bb9\u9519\uff09\uff0c\u53ef\u4ee5\u660e\u663e\u770b\u51fa\u57fa\u51c6\u7ebf\u548cABS\u90fd\u5b9e\u73b0\u4e86\u7ebf\u6027\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b6537434c4406c4a2a6\/81-0.jpeg\" alt=\"Figure07.JPG\" \/><\/div>\n<h3>8. \u672a\u6765\u5c55\u671b<\/h3>\n<p>\u5728\u672a\u6765\u7684\u7814\u7a76\u4e2d\uff0c\u6211\u4eec\u5c06\u8003\u8651\u901a\u8fc7\u5c06\u5feb\u7167\u72b6\u6001\u548c\u8fd0\u884c\u72b6\u6001\u5206\u79bb\uff0c\u8fdb\u4e00\u6b65\u51cf\u5c11ABS\u7684\u5f71\u54cd\u3002<br \/>\n\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u4efb\u52a1\u53ef\u4ee5\u5728\u4fdd\u6301\u5feb\u7167\u7684\u540c\u65f6\u8fde\u7eed\u5904\u7406\u8bb0\u5f55\uff0c\u4ece\u800c\u5b9e\u73b0\u7eaf\u7cb9\u7684\u5f02\u6b65\u72b6\u6001\u7ba1\u7406\u3002<br \/>\n\u5728\u8fd9\u79cd\u65b9\u5f0f\u4e2d\uff0c\u9700\u8981\u4f7f\u9884\u51c6\u5907\u548c\u540e\u7eed\u8bb0\u5f55\u4e0e\u5404\u81ea\u72b6\u6001\u540c\u6b65\u3002\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8bb0\u5f55\u6807\u8bb0\u4e0e\u8bb0\u5f55\u6240\u5c5e\u7684\u5feb\u7167\u76f8\u5bf9\u5e94\u6765\u89e3\u51b3\u8fd9\u4e9b\u8bb0\u5f55\u7684\u95ee\u9898\u3002<br \/>\n\u6211\u4eec\u8ba1\u5212\u4f7f\u7528\u8be5\u65b9\u6cd5\u6765\u6bd4\u8f83\u7b97\u6cd5\u8ba1\u7b97\u3001\u7a7a\u95f4\u548c\u7f51\u7edc\u7684I\/O\u9700\u6c42\uff0c\u4e0e\u5f53\u524d\u7684ABS\u5b9e\u73b0\u53ca\u5176\u6027\u80fd\u8fdb\u884c\u6bd4\u8f83\u3002<br \/>\n\u6700\u540e\uff0c\u6211\u4eec\u8ba1\u5212\u8c03\u67e5\u5404\u79cd\u6062\u590d\u65b9\u6cd5\uff0c\u4ee5\u5728\u4fdd\u6301\u201cExactly 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