{"id":47225,"date":"2023-04-10T00:24:02","date_gmt":"2023-01-18T00:05:54","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8apache-spark-2-3%e4%b8%ad%ef%bc%8c%e6%88%91%e4%bb%ac%e5%b0%86%e4%bb%8b%e7%bb%8d%e7%bb%93%e6%9e%84%e5%8c%96%e6%b5%81%e5%a4%84%e7%90%86%e7%9a%84%e4%bd%8e%e5%bb%b6%e8%bf%9f%e8%bf%9e%e7%bb%ad\/"},"modified":"2024-04-29T22:44:21","modified_gmt":"2024-04-29T14:44:21","slug":"%e5%9c%a8apache-spark-2-3%e4%b8%ad%ef%bc%8c%e6%88%91%e4%bb%ac%e5%b0%86%e4%bb%8b%e7%bb%8d%e7%bb%93%e6%9e%84%e5%8c%96%e6%b5%81%e5%a4%84%e7%90%86%e7%9a%84%e4%bd%8e%e5%bb%b6%e8%bf%9f%e8%bf%9e%e7%bb%ad","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8apache-spark-2-3%e4%b8%ad%ef%bc%8c%e6%88%91%e4%bb%ac%e5%b0%86%e4%bb%8b%e7%bb%8d%e7%bb%93%e6%9e%84%e5%8c%96%e6%b5%81%e5%a4%84%e7%90%86%e7%9a%84%e4%bd%8e%e5%bb%b6%e8%bf%9f%e8%bf%9e%e7%bb%ad\/","title":{"rendered":"\u5728Apache Spark 2.3\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u7ed3\u6784\u5316\u6d41\u5904\u7406\u7684\u4f4e\u5ef6\u8fdf\u8fde\u7eed\u5904\u7406\u6a21\u5f0f"},"content":{"rendered":"<p>\u4ecb\u7ecdApache Spark 2.3\u4e2d\u7ed3\u6784\u5316\u6d41\u5f0f\u5904\u7406\u7684\u4f4e\u5ef6\u8fdf\u8fde\u7eed\u5904\u7406\u6a21\u5f0f &#8211; Databricks\u535a\u5ba2\u7684\u7ffb\u8bd1\u3002<\/p>\n<div>\u8fd9\u672c\u4e66\u662f\u6284\u8bd1\u7684\uff0c\u4e0d\u80fd\u4fdd\u8bc1\u5185\u5bb9\u7684\u51c6\u786e\u6027\u3002\u6709\u5173\u51c6\u786e\u7684\u5185\u5bb9\uff0c\u8bf7\u53c2\u9605\u539f\u6587\u3002<\/div>\n<div>\u8bf7\u6ce8\u610f\uff0c\u8fd9\u7bc7\u6587\u7ae0\u662f2018\u5e74\u7684\u3002<\/div>\n<h1>\u53ef\u4ee5\u5728Databricks Runtime 4.0\u4e2d\u4f7f\u7528\u3002<\/h1>\n<p>\u5728Databricks\u4e2d\u5bfc\u5165\u7b14\u8bb0\u672c\u3002<\/p>\n<p>\u7531\u4e8e\u51e0\u4e2a\u539f\u56e0\uff0cApache Spark 2.0\u5c06\u7ed3\u6784\u5316\u6d41\u4ece\u5176\u9ad8\u7ea7API\u4e2d\u5206\u79bb\u51fa\u6765\u5e76\u5c06\u5176\u4f5c\u4e3a\u6279\u5904\u7406\u5904\u7406\u3002\u9996\u5148\uff0c\u8fd9\u6837\u505a\u7b80\u5316\u4e86API\u7684\u4f7f\u7528\u4f53\u9a8c\u3002API\u4e0d\u518d\u9700\u8981\u8003\u8651\u6279\u5904\u7406\u3002\u5176\u6b21\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5c06\u6d41\u5904\u7406\u4f5c\u4e3a\u65e0\u9650\u8868\u6765\u5904\u7406\uff0c\u5e76\u4e14\u53ef\u4ee5\u50cf\u64cd\u4f5c\u9759\u6001\u8868\u4e00\u6837\u67e5\u8be2\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7d4e913a08637a69f6e0\/6-0.png\" alt=\"\" \/><\/div>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fde\u7eed\u5904\u7406\u6a21\u5f0f\u4ee5\u53ca\u5f00\u53d1\u4eba\u5458\u5982\u4f55\u5229\u7528\u5b83\u6765\u63cf\u8ff0\u5177\u6709\u6beb\u79d2\u7ea7\u4f4e\u5ef6\u8fdf\u8981\u6c42\u7684\u8fde\u7eed\u6d41\u5e94\u7528\u7a0b\u5e8f\u7684\u4f18\u70b9\u548c\u7528\u6cd5\u3002\u8ba9\u6211\u4eec\u4ece\u6fc0\u52b1\u6027\u7684\u573a\u666f\u5f00\u59cb\u3002<\/p>\n<h1>\u4f4e\u5ef6\u8fdf\u7684\u573a\u666f<\/h1>\n<p>\u5e0c\u671b\u5efa\u7acb\u4e00\u4e2a\u5b9e\u65f6\u7684\u6d41\u7a0b\u6765\u8bc6\u522b\u5177\u6709\u4e0d\u5f53\u884c\u4e3a\u7684\u4fe1\u7528\u5361\u4ea4\u6613\u3002\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u4e00\u65e6\u5acc\u7591\u4eba\u5237\u5361\uff0c\u6211\u4eec\u5c31\u5e0c\u671b\u7acb\u5373\u8bc6\u522b\u5e76\u62d2\u7edd\u4e0d\u6b63\u4ea4\u6613\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u4e0d\u60f9\u6012\u5ba2\u6237\uff0c\u6211\u4eec\u4e0d\u60f3\u5ef6\u8fdf\u6b63\u786e\u7684\u4ea4\u6613\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u5fc5\u987b\u5bf9\u6211\u4eec\u7684\u6d41\u7a0b\u7684\u7aef\u5230\u7aef\u5ef6\u8fdf\u8bbe\u7f6e\u4e25\u683c\u7684\u4e0a\u9650\u3002\u7531\u4e8e\u4ea4\u6613\u4e2d\u8fd8\u5305\u542b\u5176\u4ed6\u5ef6\u8fdf\u56e0\u7d20\uff0c\u6240\u4ee5\u6d41\u7a0b\u5fc5\u987b\u80fd\u591f\u572810-20\u6beb\u79d2\u5185\u5904\u7406\u6bcf\u7b14\u4ea4\u6613\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5728\u7ed3\u6784\u5316\u6d41\u4e2d\u6784\u5efa\u8fd9\u4e2a\u6d41\u6c34\u7ebf\u3002\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3aisPaymentFlagged\u7684\u7528\u6237\u5b9a\u4e49\u51fd\u6570\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u4e0d\u5408\u6cd5\u7684\u4ea4\u6613\u3002\u4e3a\u4e86\u6700\u5c0f\u5316\u5ef6\u8fdf\uff0c\u6211\u4eec\u4f7f\u75280\u79d2\u5904\u7406\u65f6\u95f4\u89e6\u53d1\u5668\u6765\u6307\u793aSpark\u5c3d\u53ef\u80fd\u5feb\u5730\u542f\u52a8\u6bcf\u4e2a\u5fae\u6279\u5904\u7406\uff0c\u4ee5\u786e\u4fdd\u6ca1\u6709\u5ef6\u8fdf\u3002\u4ece\u9ad8\u5c42\u4e0a\u770b\uff0c\u67e5\u8be2\u5c06\u53d8\u6210\u4ee5\u4e0b\u5f62\u5f0f\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">payments<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">isPaymentFlagged(paymentId)<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"n\">writeStream<\/span> \\\r\n   <span class=\"p\">{...}<\/span>\r\n  <span class=\"p\">.<\/span><span class=\"nf\">trigger<\/span><span class=\"p\">(<\/span><span class=\"n\">processingTime<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">\"<\/span><span class=\"s\">0 seconds<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"nf\">start<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7d4e913a08637a69f6e0\/12-0.png\" alt=\"\" \/><\/div>\n<p>\u5531\u7247\u6d41\u901a\u8fc7Spark\u82b1\u8d39\u4e86\u8d85\u8fc7100\u6beb\u79d2\uff01\u5728\u8bb8\u591a\u6d41\u6c34\u7ebf\u4e2d\uff0c\u8fd9\u53ef\u80fd\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u5728\u8fd9\u4e2a\u7528\u4f8b\u4e2d\u4e0d\u591f\u3002\u8fde\u7eed\u5904\u7406\u6a21\u5f0f\uff08Continuous Processing mode\uff09\u662f\u5426\u80fd\u89e3\u51b3\u95ee\u9898\u5462\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">payments<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">isPaymentFlagged(paymentId)<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"n\">writeStream<\/span> \\\r\n   <span class=\"p\">{...}<\/span>\r\n  <span class=\"p\">.<\/span><span class=\"nf\">trigger<\/span><span class=\"p\">(<\/span><span class=\"n\">continuous<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">\"<\/span><span class=\"s\">5 seconds<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span> \\\r\n  <span class=\"p\">.<\/span><span class=\"n\">start<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u4e00\u5207\uff0c\u8fbe\u5230\u4e86\u4f4e\u4e8e1\u6beb\u79d2\u7684\u5ef6\u8fdf\uff0c\u5e76\u4e14\u5b9e\u73b0\u4e86\u4e24\u4f4d\u6570\u7684\u6539\u5584\uff0c\u4f4e\u4e8e\u76ee\u6807\u5ef6\u8fdf\uff01\u4e3a\u4e86\u7406\u89e3\u4e3a\u4ec0\u4e48\u5fae\u6279\u5904\u7406\u7684\u5ef6\u8fdf\u5982\u6b64\u9ad8\uff0c\u8fde\u7eed\u5904\u7406\u662f\u5982\u4f55\u53d1\u6325\u4f5c\u7528\u7684\uff0c\u6211\u4eec\u9700\u8981\u6df1\u5165\u4e86\u89e3\u7ed3\u6784\u5316\u6d41\u5f15\u64ce\u7684\u7ec6\u8282\u3002<\/p>\n<h1>\u5c0f\u6279\u91cf\u5904\u7406<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7d4e913a08637a69f6e0\/17-0.png\" alt=\"\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7d4e913a08637a69f6e0\/18-0.png\" alt=\"\" \/><\/div>\n<p>\u6700\u7ec8\uff0c\u4ece\u6e90\u5934\u53ef\u4ee5\u5229\u7528\u4e8b\u4ef6\u5230\u8f93\u51fa\u88ab\u5199\u5165\u5230\u76ee\u7684\u5730\u8fd9\u6bb5\u65f6\u95f4\uff0c\u6700\u4f73\u60c5\u51b5\u4e0b\u4f1a\u4ea7\u751f100\u6beb\u79d2\u7684\u5ef6\u8fdf\u3002<\/p>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u5229\u7528\u5df2\u7ecf\u7ecf\u8fc7\u4f18\u5316\u7684Spark SQL\u73b0\u6709\u7684\u6279\u5904\u7406\u5f15\u64ce\uff0c\u5728\u8fd9\u4e2a\u5fae\u6279\u5904\u7406\u5f15\u64ce\u4e2d\u5f00\u53d1\u4e86\u7ed3\u6784\u5316\u6d41\u3002\u901a\u8fc7\u8fd9\u4e2a\u5f15\u64ce\uff0c\u6211\u4eec\u53ef\u4ee5\u4ee5100\u6beb\u79d2\u7684\u5ef6\u8fdf\u5b9e\u73b0\u9ad8\u541e\u5410\u91cf\u3002\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\uff0c\u901a\u8fc7\u4e0e\u6570\u5343\u540d\u5f00\u53d1\u4eba\u5458\u5408\u4f5c\u5904\u7406\u6570\u767e\u4e2a\u4e0d\u540c\u7684\u4f7f\u7528\u6848\u4f8b\uff0c\u6211\u4eec\u4e86\u89e3\u5230\u5bf9\u4e8eETL\u548c\u5b9e\u65f6\u76d1\u63a7\u7b49\u5b9e\u8df5\u5de5\u4f5c\u8d1f\u8f7d\u6765\u8bf4\uff0c\u6beb\u79d2\u7ea7\u7684\u5ef6\u8fdf\u5df2\u7ecf\u8db3\u591f\u4e86\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u5de5\u4f5c\u8d1f\u8f7d\u4e2d\uff0c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u53ef\u4ee5\u5e26\u6765\u66f4\u591a\u7684\u597d\u5904\uff0c\u8fd9\u4e5f\u6210\u4e3a\u8fde\u7eed\u5904\u7406\u6a21\u5f0f\u5f00\u53d1\u7684\u52a8\u529b\u3002\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5176\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h1>\u8fde\u7eed\u5904\u7406<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7d4e913a08637a69f6e0\/22-1.png\" alt=\"\" \/><\/div>\n<p>\u5f53\u6e90\u5934\u4e2d\u7684\u4e8b\u4ef6\u53ef\u7528\u65f6\uff0c\u5b83\u4f1a\u7acb\u5373\u88ab\u5904\u7406\u5e76\u5199\u5165\u5230\u7f13\u51b2\u533a\uff0c\u56e0\u6b64\u7aef\u5230\u7aef\u5ef6\u8fdf\u53ea\u6709\u51e0\u6beb\u79d2\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u67e5\u8be2\u7684\u8fdb\u5ea6\u5c06\u4f7f\u7528\u8457\u540d\u7684Chandy-Lamport\u7b97\u6cd5\u521b\u5efa\u68c0\u67e5\u70b9\u3002\u7279\u6b8a\u7684\u6807\u8bb0\u8bb0\u5f55\u5c06\u88ab\u63d2\u5165\u5230\u6240\u6709\u4efb\u52a1\u7684\u8f93\u5165\u6570\u636e\u6d41\u4e2d\u3002\u6211\u4eec\u5c06\u5b83\u4eec\u79f0\u4e3a\u201c\u65f6\u671f\u6807\u8bb0\uff08epoch marker\uff09\u201d\uff0c\u5e76\u5c06\u5b83\u4eec\u4e4b\u95f4\u7684\u95f4\u9694\u79f0\u4e3a\u201c\u65f6\u671f\uff08epoch\uff09\u201d\u3002\u5f53\u6807\u8bb0\u9047\u5230\u4efb\u52a1\u65f6\uff0c\u4efb\u52a1\u4f1a\u5f02\u6b65\u5730\u5411\u9a71\u52a8\u7a0b\u5e8f\u62a5\u544a\u6700\u540e\u5904\u7406\u7684\u504f\u79fb\u91cf\u3002\u5f53\u9a71\u52a8\u7a0b\u5e8f\u6536\u5230\u6765\u81ea\u6240\u6709\u4efb\u52a1\u5199\u5165\u7684\u504f\u79fb\u91cf\u540e\uff0c\u5b83\u4f1a\u5c06\u5176\u5199\u5165\u4e0a\u8ff0\u7684\u5148\u524d\u5199\u5165\u65e5\u5fd7\u4e2d\u3002\u7531\u4e8e\u68c0\u67e5\u70b9\u521b\u5efa\u5b8c\u5168\u662f\u5f02\u6b65\u5904\u7406\u7684\uff0c\u4efb\u52a1\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u800c\u4e0d\u88ab\u6253\u6270\uff0c\u5e76\u63d0\u4f9b\u4e00\u81f4\u7684\u6beb\u79d2\u7ea7\u5ef6\u8fdf\u3002<\/p>\n<h1>Apache Spark 2.3.0 \u5728\u5b9e\u9a8c\u4e2d\u8fdb\u884c\u4e86\u53d1\u5e03\u8bd5\u9a8c\u3002<\/h1>\n<p>Apache Spark 2.3.0\u4e2d\uff0c\u8be5\u8fde\u7eed\u5904\u7406\u6a21\u5f0f\u662f\u4e00\u9879\u8bd5\u9a8c\u6027\u529f\u80fd\uff0c\u652f\u6301\u7ed3\u6784\u5316\u6d41\u6570\u636e\u6e90\u7684\u4e00\u4e2a\u5b50\u96c6\u4ee5\u53ca\u6570\u636e\u6846\/\u6570\u636e\u96c6\/SQL\u64cd\u4f5c\u3002\u7279\u522b\u5730\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6761\u4ef6\u8bbe\u7f6e\u8fde\u7eed\u89e6\u53d1\u5668\u4f5c\u4e3a\u9009\u9879\u6765\u67e5\u8be2\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Kafka\u306e\u3088\u3046\u306b\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u30bd\u30fc\u30b9\u304b\u3089\u306e\u8aad\u307f\u8fbc\u307f\u3001Kafka\u3001\u30e1\u30e2\u30ea\u30fc\u3001\u30b3\u30f3\u30bd\u30fc\u30eb\u306e\u3088\u3046\u306a\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u30b7\u30f3\u30af\u3078\u306e\u66f8\u304d\u8fbc\u307f(\u30e1\u30e2\u30ea\u30fc\u3084\u30b3\u30f3\u30bd\u30fc\u30eb\u306f\u30c7\u30d0\u30c3\u30b0\u306b\u9069\u3057\u3066\u3044\u307e\u3059)\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\">map\u306e\u3088\u3046\u306a\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3(\u4f8b: select\u3001where\u3001map\u3001flatMap\u3001filter\u306e\u3088\u3046\u306a\u9078\u629e\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30b7\u30e7\u30f3)\u306e\u307f\u3092\u542b\u3080\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u96c6\u8a08\u95a2\u6570\u3001current_timestamp()\u3084current_date()\u306e\u3088\u3046\u306a\u73fe\u5728\u6642\u523b\u30d9\u30fc\u30b9\u306e\u95a2\u6570\u4ee5\u5916\u306eSQL\u95a2\u6570\u3092\u542b\u3080\u3002<\/ul>\n<p>\u8bf7\u53c2\u9605\u4ee5\u4e0b\u5185\u5bb9\u4ee5\u83b7\u53d6\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u73fe\u5728\u306e\u5b9f\u88c5\u3068\u5236\u9650\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001Structured Streaming programming guide<\/ul>\n<\/li>\n<\/ul>\n<p>\u30df\u30ea\u79d2\u30ec\u30fc\u30c6\u30f3\u30b7\u30fc\u3067\u306e\u30e2\u30c7\u30eb\u4e88\u6e2c\u3092\u30c7\u30e2\u3059\u308bSpark Summit Keynote Demo<\/p>\n<h1>\u603b\u7ed3<\/h1>\n<p>Apache Spark 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