{"id":10008088,"date":"2023-07-13T13:58:39","date_gmt":"2023-07-13T05:58:39","guid":{"rendered":"https:\/\/ityet.com\/?p=10008088"},"modified":"2023-07-13T13:58:39","modified_gmt":"2023-07-13T05:58:39","slug":"hivesql-%e8%bf%81%e7%a7%bb-flinksql-%e5%9c%a8%e5%bf%ab%e6%89%8b%e7%9a%84%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008088","title":{"rendered":"HiveSQL \u8fc1\u79fb FlinkSQL \u5728\u5feb\u624b\u7684\u5b9e\u8df5"},"content":{"rendered":"<blockquote>\n<p>\u6458\u8981\uff1a\u672c\u6587\u6574\u7406\u81ea\u5feb\u624b\u6570\u636e\u67b6\u6784\u5de5\u7a0b\u5e08\u5f20\u8292\uff0c\u963f\u91cc\u4e91\u5de5\u7a0b\u5e08\u5218\u5927\u9f99\uff0c\u5728 Flink Forward Asia 2022 \u751f\u4ea7\u5b9e\u8df5\u4e13\u573a\u7684\u5206\u4eab\u3002\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5206\u4e3a\u56db\u4e2a\u90e8\u5206\uff1a<\/p>\n<ol>\n<li>Flink \u6d41\u6279\u4e00\u4f53\u5f15\u64ce<\/li>\n<li>Flink Batch \u751f\u4ea7\u5b9e\u8df5<\/li>\n<li>\u6838\u5fc3\u4f18\u5316\u89e3\u8bfb<\/li>\n<li>\u672a\u6765\u89c4\u5212<\/li>\n<\/ol>\n<\/blockquote>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=OxRdR02ZxALMoQVhZ1aY6Q%3D%3D.ZxXz9tskXE8OhIbdCNngwH50uM8UaF8mEGoCDOBl1wVmSmbGIVr4MVHFJmocaWAzoFfl2OAZyXbjlO%2BQPSHPC8FnljyThDQgQRrx6Gkd%2BixQQP%2B1lOvqq7O1dpgD3MEYC%2B5gg3iYwy4DADrAVRkNGg%3D%3D\" rel=\"noopener noreferrer\">\u70b9\u51fb\u67e5\u770b\u539f\u6587\u89c6\u9891 &#038; \u6f14\u8bb2PPT<\/a><\/p>\n<h2>\u4e00\u3001Flink \u6d41\u6279\u4e00\u4f53\u5f15\u64ce<\/h2>\n<h3>1.1 Lambda \u67b6\u6784<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005863\" alt=\"1\" title=\"1\"><\/p>\n<p>\u9996\u5148\uff0c\u4ecb\u7ecd\u4e00\u4e0b\u6211\u4eec\u9009\u62e9 Flink \u4f5c\u4e3a\u6d41\u6279\u4e00\u4f53\u5f15\u64ce\u7684\u601d\u8003\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u662f\u73b0\u5728\u751f\u4ea7\u5e94\u7528\u6700\u5e7f\u7684 Lambda \u67b6\u6784\uff0c\u76f8\u4fe1\u5927\u5bb6\u5df2\u7ecf\u5f88\u719f\u6089\u4e86\uff0c\u5927\u6982\u7387\u4e5f\u90fd\u5728\u4f7f\u7528\u3002Lambda \u67b6\u6784\u7684\u4f18\u52bf\u975e\u5e38\u660e\u663e\uff1a<\/p>\n<ul>\n<li>\u7075\u6d3b\u3002\u5b9e\u65f6\u94fe\u8def\u548c\u79bb\u7ebf\u94fe\u8def\u5b8c\u5168\u72ec\u7acb\uff0c\u6309\u5b9e\u9645\u9700\u6c42\u5f00\u53d1\uff0c\u4e92\u4e0d\u5f71\u54cd\uff1b<\/li>\n<li>\u5bb9\u6613\u843d\u5730\u3002\u5b9e\u65f6\u548c\u79bb\u7ebf\u94fe\u8def\u90fd\u6709\u6210\u719f\u7684\u89e3\u51b3\u65b9\u6848\uff1b<\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005864\" alt=\"2\" title=\"2\" loading=\"lazy\"><\/p>\n<p>\u5f53\u7136\u7f3a\u70b9\u4e5f\u5f88\u660e\u663e\uff0c\u5b9e\u65f6\u8ba1\u7b97\u548c\u79bb\u7ebf\u8ba1\u7b97\u4e24\u6761\u94fe\u8def\uff0c\u5b58\u50a8\u4e0d\u80fd\u590d\u7528\uff0c\u6240\u4ee5\u8d44\u6e90\u5197\u4f59\u4e25\u91cd\u3002<\/p>\n<p>\u7136\u540e\uff0c\u4e24\u79cd\u8ba1\u7b97\u5f15\u64ce\uff0c\u79bb\u7ebf\u8ba1\u7b97\u4e00\u822c\u4f7f\u7528 Spark\uff0c\u5b9e\u65f6\u8ba1\u7b97\u4f7f\u7528 Flink\uff0c\u90a3\u4e48\u5c31\u8981\u5b66\u4e60\u548c\u7ef4\u62a4\u4e24\u5957\u4ee3\u7801\uff0c\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n<p>\u4e00\u822c\u5b9e\u65f6\u548c\u79bb\u7ebf\u53c8\u662f\u4e24\u4e2a\u56e2\u961f\u5f00\u53d1\u548c\u7ef4\u62a4\u7684\uff0c\u90a3\u4e48\u5b9e\u73b0\u7ec6\u8282\u548c\u53e3\u5f84\u96be\u4ee5\u7edf\u4e00\uff0c\u6240\u4ee5\u7ecf\u5e38\u4f1a\u6709\u7ed3\u679c\u5bf9\u4e0d\u4e0a\u7684\u60c5\u51b5\u3002\u56e0\u6b64\uff0c\u4e1a\u52a1\u540c\u5b66\u4e5f\u975e\u5e38\u5e0c\u671b\u5b9e\u73b0\u6d41\u6279\u7684\u7edf\u4e00\u3002<\/p>\n<h3>1.2 \u5f15\u64ce\u7edf\u4e00<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005865\" alt=\"3\" title=\"3\" loading=\"lazy\"><\/p>\n<p>\u6211\u4eec\u628a\u6d41\u6279\u4e00\u4f53\u5206\u4e3a\u4e24\u4e2a\u65b9\u9762\uff0c\u4e00\u4e2a\u662f\u5f15\u64ce\u7684\u7edf\u4e00\uff0c\u53e6\u4e00\u4e2a\u662f\u5b58\u50a8\u7684\u7edf\u4e00\u3002\u8fd9\u91cc\u4e3b\u8981\u4ecb\u7ecd\uff0c\u5f15\u64ce\u7684\u7edf\u4e00\u3002<\/p>\n<p>\u5982\u679c\u6d41\u6279\u5f15\u64ce\u7edf\u4e00\u4e86\uff0c\u90a3\u4e48\u7528\u6237\u53ea\u9700\u8981\u5b66\u4e60\u4e00\u79cd\u5f15\u64ce\uff0c\u5e76\u4e14\u5f00\u53d1\u7684\u4ee3\u7801\u4e5f\u53ef\u4ee5\u5927\u91cf\u590d\u7528\u3002\u8fd9\u6837\u6781\u5927\u7684\u964d\u4f4e\u4e86\u5f00\u53d1\u8fd0\u7ef4\u7684\u6210\u672c\uff0c\u7531\u4e8e\u8ba1\u7b97\u903b\u8f91\u76f8\u540c\uff0c\u6570\u636e\u8d28\u91cf\u4e5f\u5c31\u5f97\u5230\u4e86\u4fdd\u8bc1\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5feb\u624b\u79bb\u7ebf\u4f5c\u4e1a\u5207\u6362\u5f15\u64ce\u662f\u975e\u5e38\u4fbf\u6377\u7684\u3002\u56e0\u6b64\u6211\u4eec\u5f15\u64ce\u7edf\u4e00\u7684\u4e0a\u7ebf\u8282\u594f\u548c\u4e0a\u7ebf\u8d28\u91cf\u5f88\u5bb9\u6613\u628a\u63a7\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005866\" alt=\"4\" title=\"4\" loading=\"lazy\"><\/p>\n<p>\u90a3\u4e48\u4f7f\u7528\u54ea\u4e2a\u5f15\u64ce\u6765\u4f5c\u4e3a\u6d41\u6279\u7edf\u4e00\u7684\u5f15\u64ce\u5462\uff1f\u6211\u4eec\u5bf9\u6bd4\u4e86\u4e3b\u6d41\u7684\u5927\u6570\u636e\u5f15\u64ce\u4e4b\u540e\uff0c\u9009\u62e9\u4e86 Flink \u4f5c\u4e3a\u6d41\u6279\u7edf\u4e00\u7684\u5f15\u64ce\u3002<\/p>\n<p>\u56e0\u4e3a Flink \u4f5c\u4e3a\u6d41\u8ba1\u7b97\u9886\u57df\u7684\u6807\u6746\uff0c\u5728\u67b6\u6784\u8bbe\u8ba1\u4e0a\u5df2\u7ecf\u8003\u8651\u5230\u4e86\u6d41\u6279\u878d\u5408\uff0c\u540c\u65f6\u62e5\u6709\u6d3b\u8dc3\u7684\u793e\u533a\u3002\u5e76\u4e14\u7ecf\u8fc7\u591a\u4e2a\u7248\u672c\u8fed\u4ee3\u4e4b\u540e\uff0cBatch \u5df2\u7ecf\u5177\u5907\u4e00\u5b9a\u53ef\u7528\u6027\u4e86\uff0c\u6211\u4eec\u4e4b\u524d\u5728\u751f\u4ea7\u4e0a\u4e5f\u6709\u8fc7\u4e00\u4e9b\u4e1a\u52a1\u843d\u5730\u3002<\/p>\n<h3>\u4e8c\u3001Flink Batch \u751f\u4ea7\u5b9e\u8df5<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005867\" alt=\"5\" title=\"5\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u91cd\u70b9\u4ecb\u7ecd\u4e00\u4e0b Flink Batch \u751f\u4ea7\u5e94\u7528\u7684\u60c5\u51b5\u3002\u76ee\u524d\uff0c\u6211\u4eec\u7ebf\u4e0a\u7a33\u5b9a\u8fd0\u884c\u4e86 3000+\u7684 Flink Batch \u4f5c\u4e1a\uff0c\u4e3b\u8981\u662f\u5e73\u6ed1\u8fc1\u79fb\u7684 Batch SQL\u3002<\/p>\n<p>\u4e0e\u6b64\u540c\u65f6\uff0c\u6211\u4eec\u4e3a\u7528\u6237\u63d0\u4f9b\u591a\u79cd\u5165\u53e3\u9009\u62e9\u3002\u5176\u4e2d\uff0cBatch SQL \u5165\u53e3\uff0c\u9762\u5411\u4f20\u7edf\u7684\u79bb\u7ebf\u751f\u4ea7\u5f00\u53d1\u4f7f\u7528 Hive \u65b9\u8a00\uff0c\u4e5f\u662f\u6211\u672c\u6b21\u5206\u4eab\u7684\u91cd\u70b9\u3002<\/p>\n<p>\u8c03\u5ea6\u5e73\u53f0\u7684 Flink Batch \u5165\u53e3\uff0c\u4e3b\u8981\u65b9\u4fbf\u719f\u6089 Flink \u7684\u7528\u6237\u76f4\u63a5\u4f7f\u7528 Flink \u65b9\u8a00\u6216 API \u5f00\u53d1 Batch \u4f5c\u4e1a\uff0c\u5e76\u63d0\u4f9b\u5b8c\u6574\u7684\u79bb\u7ebf\u8c03\u5ea6\u652f\u6301\u3002\u5176\u4ed6\u5165\u53e3\u662f\u4e1a\u52a1\u65b9\u6839\u636e\u81ea\u5df1\u9700\u8981\uff0c\u57fa\u4e8e\u6211\u4eec\u5e73\u53f0\u642d\u5efa\u7684\u4e1a\u52a1\u7cfb\u7edf\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005868\" alt=\"6\" title=\"6\" loading=\"lazy\"><\/p>\n<p>\u5982\u4f55\u5728\u751f\u4ea7\u73af\u5883\u4f7f\u7528\u597d\u57fa\u4e8e Hive \u65b9\u8a00\u7684 Flink Batch \u5462\uff1f\u9700\u8981\u89e3\u51b3\u8fd9\u51e0\u4e2a\u65b9\u9762\u7684\u95ee\u9898\u3002<\/p>\n<ul>\n<li>\u660e\u786e\u4e0a\u7ebf\u6d41\u7a0b\u548c\u6807\u51c6\u3002\u9996\u5148\u8981\u7b5b\u9009\u51fa\u5408\u9002\u7684\u4f5c\u4e1a\uff0c\u7136\u540e\u9a8c\u8bc1\u6570\u636e\u8d28\u91cf\u3001\u65f6\u6548\u6027\u3001\u8d44\u6e90\u7b49\u5404\u9879\u6307\u6807\uff0c\u4e4b\u540e\u624d\u80fd\u4e0a\u7ebf\u3002<\/li>\n<li>\u89e3\u51b3\u548c Hive SQL \u7684\u8bed\u6cd5\u517c\u5bb9\u95ee\u9898\uff0c\u63a5\u5165\u79bb\u7ebf\u751f\u4ea7\u7684\u5404\u4e2a\u7cfb\u7edf\uff0c\u6bd4\u5982\u6743\u9650\u4e2d\u5fc3\uff0c\u5143\u6570\u636e\u4e2d\u5fc3\u7b49\u3002<\/li>\n<li>\u4fdd\u8bc1\u751f\u4ea7\u73af\u5883\u7684\u7a33\u5b9a\u8fd0\u884c\uff0c\u79bb\u7ebf\u73af\u5883\u6bd4\u5b9e\u65f6\u73af\u5883\u590d\u6742\u5f88\u591a\uff0c\u4f1a\u9047\u5230\u4e00\u4e9b\u5b9e\u65f6\u573a\u666f\u4e0d\u5b58\u5728\u7684\u95ee\u9898\u3002<\/li>\n<li>\u89e3\u51b3\u548c\u539f\u79bb\u7ebf\u5f15\u64ce\u7684\u6027\u80fd\u5dee\u8ddd\uff1b\u6bd4\u5982\u540e\u9762\u5927\u9f99\u8001\u5e08\u4f1a\u4ecb\u7ecd\u7684\u52a8\u6001\u5206\u533a\u6d88\u9664 Sort \u7b97\u5b50\u4f18\u5316\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u51e0\u4e2a\u65b9\u9762\u90fd\u89e3\u51b3\u4e4b\u540e\uff0c\u57fa\u672c\u5c31\u53ef\u4ee5\u63a8\u5e7f\u5e94\u7528\u4e86\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005869\" alt=\"7\" title=\"7\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u5feb\u624b\u7684\u79bb\u7ebf\u751f\u4ea7\u4f53\u7cfb\u3002\u5728\u5e94\u7528\u5c42\uff0c\u4e00\u822c\u90fd\u662f\u5404\u79cd\u5f00\u53d1\u5e73\u53f0\uff0c\u6216\u8005\u662f\u4e00\u4e9b\u4e1a\u52a1\u7cfb\u7edf\u3002\u5728\u670d\u52a1\u5c42\uff0c\u5feb\u624b\u662f\u4f7f\u7528 HiveServer \u4f5c\u4e3a Batch SQL \u7684\u7edf\u4e00\u5165\u53e3\uff0c\u7edf\u4e00\u4f7f\u7528 Hive \u65b9\u8a00\u3002<\/p>\n<p>BeaconServer \u53ef\u4ee5\u505a SQL \u7684\u6539\u5199\uff0c\u5f15\u64ce\u7684\u8def\u7531\u7b56\u7565\uff0c\u8fd8\u6709 HBO \u4f18\u5316\u7b49\u3002\u4e0b\u9762\u5f15\u64ce\u5c42\u53ef\u4ee5\u81ea\u7531\u7684\u5207\u6362\uff0c\u6240\u4ee5\u6211\u4eec\u5c06 Flink \u63a5\u5165\u79bb\u7ebf\u751f\u4ea7\uff0c\u53ea\u9700\u8981\u9002\u914d HiveServer\uff0c\u7136\u540e\u5728 BeaconServer \u4e2d\uff0c\u52a0\u5165 Flink \u5f15\u64ce\u8def\u7531\u89c4\u5219\u5373\u53ef\u3002<\/p>\n<p>\u6211\u4eec\u76ee\u524d\u4f7f\u7528 SQL-Client \u7684\u65b9\u5f0f\u63a5\u5165 HiveServer\uff0c\u672a\u6765\u53ef\u80fd\u4f1a\u6269\u5c55 SQL Gateway \u7684\u652f\u6301\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005870\" alt=\"8\" title=\"8\" loading=\"lazy\"><\/p>\n<p>\u89e3\u51b3\u5b8c\u5982\u4f55\u63a5\u5165\u79bb\u7ebf\u4f53\u7cfb\u7684\u95ee\u9898\u4e4b\u540e\uff0c\u6211\u4eec\u9700\u8981\u660e\u786e\u4f5c\u4e1a\u4e0a\u7ebf\u7684\u6d41\u7a0b\u3002<\/p>\n<ul>\n<li>\u7b2c\u4e00\u6b65\uff0c\u7b5b\u9009\u51fa\u7b26\u5408\u8981\u6c42\u7684 Batch SQL\uff0c\u6bd4\u5982\uff0c\u521a\u5f00\u59cb\u6211\u4eec\u9009\u62e9\u4f4e\u4f18\u5148\u7ea7\u7684\u7b80\u5355\u6570\u636e\u5904\u7406\u4f5c\u4e1a\u3002<\/li>\n<li>\u7b2c\u4e8c\u6b65\uff0c\u4f7f\u7528 Flink \u5bf9 SQL \u8fdb\u884c\u89e3\u6790\u548c\u6821\u9a8c\uff0c\u786e\u5b9a Flink \u662f\u5426\u652f\u6301\u3002<\/li>\n<li>\u7b2c\u4e09\u6b65\uff0c\u5bf9 Flink \u53ef\u4ee5\u8fd0\u884c\u7684 SQL\uff0c\u8fdb\u884c\u6539\u5199\uff0c\u628a\u63d2\u5165\u8868\u6539\u6210\u6d4b\u8bd5\u5e93\u4e2d\u7684\u8868\uff0c\u7136\u540e\u63d0\u4ea4\u8fd0\u884c\u3002<\/li>\n<li>\u7b2c\u56db\u6b65\uff0c\u5bf9\u6bd4\u5f71\u5b50\u4f5c\u4e1a\u548c\u7ebf\u4e0a\u4f5c\u4e1a\u7684\u7ed3\u679c\u662f\u5426\u4e00\u81f4\uff0c\u4ee5\u53ca\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n<li>\u7b2c\u4e94\u6b65\uff0c\u628a\u524d\u56db\u6b65\u90fd\u6210\u529f\u7684\u4f5c\u4e1a\u5207\u6362\u5230 Flink \u5f15\u64ce\u4e0a\u6765\uff0c\u5e76\u4e14\u8fd8\u8981\u7ee7\u7eed\u89c2\u5bdf\u6570\u636e\u8d28\u91cf\u3002<\/li>\n<\/ul>\n<p>\u5229\u7528\u7b2c\u4e09\u6b65\u63d0\u5230\u7684\u53cc\u8dd1\u80fd\u529b\uff0c\u53ea\u662f\u5f71\u5b50\u4f5c\u4e1a\u4f7f\u7528\u539f\u6765\u7684\u79bb\u7ebf\u5f15\u64ce\uff0c\u7ebf\u4e0a\u4f5c\u4e1a\u4f7f\u7528 Flink\uff0c\u7136\u540e\u5bf9\u6bd4\u7ed3\u679c\uff0c\u786e\u4fdd\u6ca1\u6709\u9884\u6599\u4e4b\u5916\u7684\u95ee\u9898\u53d1\u751f\u3002\u8fd9\u4e00\u6b65\u975e\u5e38\u91cd\u8981\uff0c\u80fd\u591f\u5e2e\u6211\u4eec\u53ca\u65f6\u53d1\u73b0\u6ca1\u8003\u8651\u5230\u7684 case\u3002\u56e0\u4e3a\u7ebf\u4e0a\u73af\u5883\u975e\u5e38\u590d\u6742\uff0c\u524d\u671f\u4e0a\u7ebf\u9700\u8981\u591a\u89c2\u5bdf\u3002<\/p>\n<p>\u76ee\u524d\uff0c\u8fd9\u4e2a\u6d41\u7a0b\u5df2\u7ecf\u505a\u5230\u4e86\u81ea\u52a8\u5316\u3002\u6211\u4eec\u7684\u4eba\u529b\u4e3b\u8981\u96c6\u4e2d\u5728\u89e3\u51b3\u53d1\u73b0\u7684\u5f02\u5e38 case\uff1b<\/p>\n<p>\u4e0b\u9762\u4f1a\u4ecb\u7ecd\uff0c\u8fd9\u4e2a\u6d41\u7a0b\u7684\u51e0\u4e2a\u5173\u952e\u70b9\uff0c\u7ed9\u5927\u5bb6\u4e00\u4e2a\u53c2\u8003\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005871\" alt=\"9\" title=\"9\" loading=\"lazy\"><\/p>\n<p>\u521a\u5f00\u59cb\u4f7f\u7528 Flink \u6821\u9a8c SQL \u7684\u8fc7\u7a0b\u4e2d\uff0c\u53d1\u73b0\u5f88\u591a\u5e38\u7528\u7684\u8bed\u6cd5\u90fd\u4e0d\u652f\u6301\uff0c\u611f\u89c9\u4e0d\u592a\u6b63\u5e38\u3002\u5206\u6790\u540e\u53d1\u73b0\uff0c\u662f\u56e0\u4e3a\u6253\u5f00\u65b9\u5f0f\u4e0d\u5bf9\uff0c\u5bfc\u81f4\u6ca1\u6709\u771f\u6b63\u7684\u7528\u4e0a Flink HiveParser\uff0c\u901a\u8fc7\u67e5\u770b\u8fd9\u5757\u7684\u4ee3\u7801\u903b\u8f91\uff0c\u53d1\u73b0\u95ee\u9898\u6240\u5728\u3002\u5728 Flink \u91cc\uff0c\u8981\u771f\u6b63\u4f7f\u7528 HiveParser\uff0c\u9700\u8981\u6ee1\u8db3\u4e24\u4e2a\u6761\u4ef6\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528 Hive \u65b9\u8a00\u3002<\/li>\n<li>\u5f53\u524d Catalog \u5fc5\u987b\u662f HiveCatalog\uff0c\u5426\u5219\u4f1a\u56de\u6eda\u5230 FlinkParser\u3002<\/li>\n<\/ul>\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u9700\u8981\u786e\u4fdd HiveModule \u662f\u6700\u9ad8\u4f18\u5148\u7ea7\u3002\u8fd9\u6837 Flink \u548c Hive \u540c\u540d\u7684 Function \u624d\u4f1a\u7528 Hive \u7684\u5b9e\u73b0\u3002<\/p>\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6309\u7167\u53f3\u8fb9\u8fd9\u79cd\u65b9\u5f0f\u5b9e\u73b0\u4e4b\u540e\uff0cSQL \u6821\u9a8c\u901a\u8fc7\u7387\u63d0\u9ad8\u4e86\u5f88\u591a\u3002\u4f46\u4ecd\u6709\u5f88\u591a Batch \u8bed\u6cd5\u4e0d\u652f\u6301\uff0c\u6bd4\u5982 Add Remote JAR \u548c insert \u76ee\u5f55\u7b49\u7b49\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005872\" alt=\"10\" title=\"10\" loading=\"lazy\"><\/p>\n<p>\u5728 SQL \u6539\u5199\u65b9\u9762\uff0c\u4e00\u822c\u6709\u4e24\u79cd\u60c5\u51b5\u3002<\/p>\n<ul>\n<li>\u7528\u6237\u4f5c\u4e1a\u91cc\u6ca1\u6709\u76ee\u6807\u8868\u7684\u5efa\u8868\u8bed\u53e5\u3002\u6211\u4eec\u4f1a\u4f7f\u7528 CREATE TABLE LIKE \u8bed\u53e5\uff0c\u5148\u521b\u5efa\u51fa\u6d4b\u8bd5\u5e93\u7684\u76ee\u6807\u8868\u3002\u7136\u540e\uff0c\u628a\u539f\u59cb SQL \u4fee\u6539\u4e3a\u5199\u5165\u6d4b\u8bd5\u5e93\u3002<\/li>\n<li>\u7528\u6237\u4f5c\u4e1a\u91cc\u5e26\u6709\u76ee\u6807\u8868\u7684\u5efa\u8868\u8bed\u53e5\u3002\u6211\u4eec\u4f1a\u76f4\u63a5\u4e2a\u5efa\u8868\u8bed\u53e5\uff0c\u6539\u6210\u521b\u5efa\u5230\u6d4b\u8bd5\u5e93\u3002\u7136\u540e\uff0c\u628a\u539f\u59cb SQL \u4fee\u6539\u4e3a\u5199\u5165\u6d4b\u8bd5\u8868\u3002<\/li>\n<\/ul>\n<p>\u5728\u6267\u884c\u5f71\u5b50\u4f5c\u4e1a\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u5c0f\u6743\u9650\u7684\u8d26\u53f7\u3002\u8fd9\u4e2a\u8d26\u53f7\u53ea\u6709\u5199\u6d4b\u8bd5\u5e93\u7684\u6743\u9650\uff0c\u907f\u514d SQL \u6539\u5199\u5931\u8d25\u628a\u6570\u636e\u5199\u5165\u5230\u7ebf\u4e0a\u5e93\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005873\" alt=\"11\" title=\"11\" loading=\"lazy\"><\/p>\n<p>\u5728\u8d28\u91cf\u6821\u9a8c\u65b9\u9762\uff0c\u6211\u4eec\u7684\u7b56\u7565\u5982\u4e0b\u3002\u9996\u5148\uff0c\u6839\u636e HiveServer \u8bb0\u5f55\u7684\u4f5c\u4e1a\u8f93\u5165\u4fe1\u606f\uff0c\u6bd4\u5bf9\u8f93\u5165\u7684\u6570\u636e\u91cf\u548c\u5206\u533a\u6570\u636e\u662f\u5426\u4e00\u81f4\u3002\u7136\u540e\uff0c\u6839\u636e\u4f5c\u4e1a\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u6bd4\u5bf9\u5199\u51fa\u7684\u6570\u636e\u91cf\u662f\u5426\u4e00\u81f4\u3002\u6700\u540e\uff0c\u6bd4\u5bf9\u5199\u51fa\u7684\u6570\u636e\u7ed3\u679c\u662f\u5426\u4e00\u81f4\u3002<\/p>\n<p>\u6211\u4eec\u6bd4\u5bf9\u7684\u65b9\u5f0f\u662f\uff0c\u628a\u7ed3\u679c\u6570\u636e\u6309\u5217\u6c42\u548c\uff0c\u5982\u4f55\u6240\u6709\u5217\u7684\u7ed3\u679c\u90fd\u4e00\u81f4\uff0c\u5219\u8bc1\u660e\u6570\u636e\u8d28\u91cf\u6ca1\u95ee\u9898\u3002\u5728\u6309\u5217\u6c42\u548c\u65f6\uff0c\u5982\u679c\u662f Number \u7c7b\u578b\u7684\u5217\uff0c\u76f4\u63a5\u6c42\u548c\uff1b\u5982\u679c\u662f\u975e Number \u7c7b\u578b\u5217\uff0c\u5148\u53d6 Hashcode\uff0c\u7136\u540e\u518d\u6c42\u548c\u3002<\/p>\n<p>\u5f53\u7ed3\u679c\u5bf9\u6bd4\u4e00\u81f4\u540e\uff0c\u6211\u4eec\u4f1a\u5bf9\u6bd4\u8d44\u6e90\u5f00\u9500\u3002\u8fd9\u91cc\u7edf\u4e00\u4f7f\u7528 YARN \u7684\u7edf\u8ba1\u53e3\u5f84\uff0c\u6309\u7167\u6bcf\u4e2a Container \u4f7f\u7528\u7684\u8d44\u6e90*Container \u8fd0\u884c\u7684\u65f6\u95f4\uff0c\u6700\u540e\u52a0\u548c\u7b97\u51fa\u8d44\u6e90\u603b\u91cf\u3002<\/p>\n<p>\u4e0a\u7ebf\u4f5c\u4e1a\u7684\u6807\u51c6\u662f\uff0c\u6570\u636e\u8d28\u91cf\u6ca1\u6709\u95ee\u9898\uff0c\u5e76\u4e14\u8d44\u6e90\u4f7f\u7528\u589e\u957f\u91cf\uff0c\u4e0d\u8d85\u8fc7\u539f\u5f15\u64ce\u7684 10%\uff0c\u6267\u884c\u65f6\u957f\u4e0d\u8d85\u8fc7\u539f\u5f15\u64ce 20 \u5206\u949f\u3002\u4ecb\u7ecd\u5b8c Flink Batch \u4f5c\u4e1a\u4e0a\u7ebf\u6d41\u7a0b\u4e4b\u540e\uff0c\u6211\u4eec\u770b\u4e00\u4e0b\u63a5\u5165\u79bb\u7ebf\u751f\u4ea7\u8fd8\u9700\u8981\u505a\u54ea\u4e9b\u5de5\u4f5c\uff1f<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005874\" alt=\"12\" title=\"12\" loading=\"lazy\"><\/p>\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5217\u51fa\u4e86\u6211\u4eec\u505a\u7684\u4e00\u4e9b\u4fee\u6539\u3002\u539f\u6765 Flink \u7684\u914d\u7f6e\u7531 Flink\u3001Hadoop\u3001Hive \u4e09\u90e8\u5206\u7ec4\u6210\uff0c\u914d\u7f6e\u7ba1\u7406\u8d77\u6765\u6bd4\u8f83\u590d\u6742\u4e5f\u4e0d\u591f\u6e05\u6670\u3002<\/p>\n<p>\u56e0\u4e3a\u6211\u4eec\u901a\u8fc7 HiveServer \u63a5\u5165\uff0cHiveServer \u5728\u542f\u52a8 Flink \u65f6\uff0c\u4f1a\u628a Hive Session \u91cc\u7684\u914d\u7f6e\uff0c\u90fd\u4f20\u7ed9 Flink\u3002\u8fd9\u91cc\u5305\u62ec\u7528\u6237\u624b\u52a8 set \u7684\u914d\u7f6e\u548c Hadoop \u76f8\u5173\u914d\u7f6e\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u628a Flink \u7684\u914d\u7f6e\u6539\u4e3a\u4e24\u90e8\u5206\uff0c\u4e00\u90e8\u5206\u662f Flink \u81ea\u5df1\u7684\u914d\u7f6e\uff0c\u4e00\u90e8\u5206\u662f Hadoop \u548c Hive \u7684\u914d\u7f6e\u3002<\/p>\n<p>SQL-Client \u4f1a\u9ed8\u8ba4\u4f1a\u5f00\u542f\u5355\u8bcd\u8865\u5168\u529f\u80fd\uff0c\u5373\u8f93\u5165\u5355\u8bcd\u7684\u4e00\u90e8\u5206\uff0c\u7136\u540e\u4f7f\u7528 Tab \u952e\u6765\u8865\u5168\u5355\u8bcd\uff0c\u8fd9\u4e2a\u529f\u80fd\u5728\u4ea4\u4e92\u6a21\u5f0f\u4e0b\u662f\u6ca1\u95ee\u9898\u7684\u3002\u4f46\u5728\u4f7f\u7528\u6587\u4ef6\u4f20\u5165 SQL \u65f6\uff0c\u5982\u679c SQL \u5185\u5bb9\u4e2d\uff0c\u521a\u597d\u6709\u8fd9\u79cd\u60c5\u51b5\uff0c\u5c31\u4f1a\u5bfc\u81f4 SQL \u53d1\u751f\u53d8\u5316\uff0c\u51fa\u73b0\u5b57\u6bb5\u627e\u4e0d\u5230\u7684\u5f02\u5e38\u3002\u6240\u4ee5\u4ece\u6587\u4ef6\u8f93\u5165 SQL \u65f6\uff0c\u9700\u8981\u5173\u95ed\u8865\u5168\u529f\u80fd\u3002<\/p>\n<p>\u4f5c\u4e1a\u8fdb\u5ea6\u6c47\u62a5\uff0c\u662f\u5bf9\u7528\u6237\u4f53\u9a8c\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\u3002\u4e0d\u7136\u4f5c\u4e1a\u63d0\u4ea4\u540e\uff0c\u7528\u6237\u65e0\u6cd5\u50cf Hive\/Spark \u90a3\u6837\u770b\u5230\u8fdb\u5ea6\u4fe1\u606f\uff0cHiveServer \u4e5f\u4e0d\u77e5\u9053\u4f5c\u4e1a\u8fd0\u884c\u662f\u5426\u6b63\u5e38\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u4f5c\u4e1a\u4e00\u76f4\u5361\u4e3b\u7684\u60c5\u51b5\u3002\u6240\u4ee5\u6211\u4eec\u505a\u4e86\u8fdb\u5ea6\u6c47\u62a5\u529f\u80fd\uff0c\u5982\u679c\u957f\u65f6\u95f4\u6ca1\u6709\u6c47\u62a5\u8fdb\u5ea6\uff0cHiveServer \u5c31\u4f1a\u4e3b\u52a8\u6740\u6389\u4f5c\u4e1a\u3002<\/p>\n<p>\u6700\u540e\uff0c\u76d1\u63a7\u770b\u677f\u771f\u5f88\u6709\u5fc5\u8981\u3002\u5728\u5206\u6790\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u8f85\u52a9\u5b9a\u4f4d\uff0c\u4e0d\u7136\u53ea\u80fd\u76f2\u731c\u3002\u53e6\u5916\uff0c\u5728\u63a5\u5165\u79bb\u7ebf\u751f\u4ea7\u65b9\u9762\uff0c\u8fd8\u6709\u4e00\u4e9b\u548c\u5e73\u53f0\u4ea7\u54c1\u9002\u914d\u7684\u5de5\u4f5c\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005875\" alt=\"13\" title=\"13\" loading=\"lazy\"><\/p>\n<p>\u6bd4\u5982\uff0c\u7a7a\u5206\u533a\u53d1\u5e03\u548c SUCCESS FILE \u529f\u80fd\uff0c\u5feb\u624b\u7684\u79bb\u7ebf\u8c03\u5ea6\u5e73\u53f0\u76ee\u524d\u652f\u6301 3 \u79cd\u4f9d\u8d56\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li>\u4efb\u52a1\u4f9d\u8d56\u3002\u5f53\u4e0a\u6e38\u4efb\u52a1\u6210\u529f\u4e4b\u540e\uff0c\u624d\u4f1a\u62c9\u8d77\u4e0b\u6e38\u4efb\u52a1\u3002<\/li>\n<li>\u5206\u533a\u4f9d\u8d56\u3002\u63a2\u6d4b\u5206\u533a\u5143\u6570\u636e\u662f\u5426\u751f\u6210\uff0c\u751f\u6210\u4e4b\u540e\u5c31\u62c9\u8d77\u4e0b\u6e38\u4efb\u52a1\u3002<\/li>\n<li>SUCCESS FILE \u4f9d\u8d56\u3002\u6839\u636e\u6587\u4ef6\u662f\u5426\u5b58\u5728\uff0c\u51b3\u5b9a\u662f\u5426\u62c9\u8d77\u4e0b\u6e38\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<p>Flink \u6839\u636e Sink \u5199\u51fa\u6587\u4ef6\u76ee\u5f55\uff0c\u6765\u5224\u65ad\u9700\u8981\u53d1\u5e03\u54ea\u4e9b\u5206\u533a\uff0c\u52a8\u6001\u5206\u533a\u60c5\u51b5\u4e0b\u6ca1\u6709\u95ee\u9898\u3002\u5982\u679c\u662f\u9759\u6001\u5206\u533a\u5199\u5165\u7684\u4efb\u52a1\uff0c\u540c\u65f6\u6ca1\u6709\u6570\u636e\u751f\u6210\uff0cFlink \u5c31\u4e0d\u4f1a\u53d1\u5e03\u5206\u533a\uff0c\u8fd9\u6837\u5c31\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e0b\u6e38\u4e0d\u88ab\u62c9\u8d77\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5982\u679c\u6ca1\u6709\u5199\u51fa SUCCESS FILE \u7684\u8bdd\uff0c\u4e5f\u4f1a\u6709\u7c7b\u4f3c\u7684\u95ee\u9898\u3002<\/p>\n<p>\u5728\u6536\u96c6\u7edf\u8ba1\u4fe1\u606f\u65b9\u9762\uff0cFlink Batch \u539f\u6765\u6ca1\u6709\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\uff0c\u5f53\u751f\u6210\u5206\u533a\u540e\uff0c\u5143\u6570\u636e\u4e2d\u5fc3\u663e\u793a\u6570\u636e\u4e3a 0\u3002\u7528\u6237\u770b\u5230\u4e4b\u540e\uff0c\u4ee5\u4e3a\u4f5c\u4e1a\u6ca1\u6709\u6267\u884c\u6210\u529f\uff0c\u5c31\u4f1a\u91cd\u8dd1\u4f5c\u4e1a\u3002\u5982\u679c\u7528\u6237\u914d\u7f6e\u4e86\u6570\u636e\u8d28\u91cf\u6821\u9a8c\uff0c\u6ca1\u6709\u7edf\u8ba1\u4fe1\u606f\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u6821\u9a8c\u4e0d\u901a\u8fc7\u3002<\/p>\n<p>\u4ecb\u7ecd\u5b8c\u63a5\u5165\u76f8\u5173\u5185\u5bb9\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5728\u7ebf\u4e0a\u8fd0\u884c\u4e4b\u540e\u9047\u5230\u7684\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005876\" alt=\"14\" title=\"14\" loading=\"lazy\"><\/p>\n<p>\u6211\u4eec\u77e5\u9053\uff0c\u79bb\u7ebf\u751f\u4ea7\u4e00\u822c\u662f T+1\u3002\u7531\u4e8e 0 \u70b9\u4e4b\u540e\u5f00\u59cb\u5904\u7406\u524d\u4e00\u5929\u7684\u6570\u636e\uff0c\u6240\u4ee5 0 \u70b9\u4e4b\u540e\uff0c\u4f1a\u8c03\u5ea6\u8d77\u5927\u6279\u7684\u4f5c\u4e1a\uff0c\u79bb\u7ebf\u8d44\u6e90\u5c31\u4f1a\u5f88\u7d27\u5f20\u3002\u8fd9\u4e2a\u65f6\u5019\u542f\u52a8\u7684\u57fa\u7ebf\u4f5c\u4e1a\uff0c\u53ef\u80fd\u5c31\u62ff\u4e0d\u5230\u8d44\u6e90\u3002\u4e3a\u4e86\u4fdd\u8bc1\u57fa\u7ebf\u4f5c\u4e1a\u6309\u65f6\u5b8c\u6210\uff0cYARN \u4f1a Kill \u6389\u4e00\u4e9b\u4f4e\u4f18\u4f5c\u4e1a\u7684 Container\uff0c\u628a\u8d44\u6e90\u5206\u7ed9\u57fa\u7ebf\u4efb\u52a1\u3002<\/p>\n<p>Flink \u4e00\u822c\u4f1a\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u5f53 Task \u5931\u8d25\u603b\u6b21\u6570\u8fbe\u5230\u9608\u503c\uff0c\u4f5c\u4e1a\u5931\u8d25\u3002\u79bb\u7ebf\u5f15\u64ce\u4e00\u822c\u662f\u540c\u4e00\u4e2a Task \u5931\u8d25\u51e0\u6b21\uff0c\u4f5c\u4e1a\u624d\u4f1a\u5931\u8d25\uff0c\u5e76\u4e14\u79bb\u7ebf\u5f15\u64ce\u4e0d\u4f1a\u5c06\u5e73\u53f0\u539f\u56e0\u5bfc\u81f4\u7684\u5931\u8d25\u8ba1\u7b97\u5728\u5185\u3002<\/p>\n<p>Flink Batch \u4e0a\u7ebf\u4e4b\u521d\uff0c\u5c31\u9047\u5230\u4e86\u8d44\u6e90\u62a2\u5360\u95ee\u9898\u3002\u4f5c\u4e1a\u4f1a\u51fa\u73b0\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u5c31\u5931\u8d25\uff0c\u89e6\u53d1\u8c03\u5ea6\u5e73\u53f0\u7684\u5931\u8d25\u91cd\u8bd5\uff0c\u91cd\u8bd5\u51e0\u6b21\u624d\u4f1a\u6210\u529f\u3002\u6709\u7684\u4f5c\u4e1a\u53ef\u80fd\u4e0d\u4f1a\u5931\u8d25\uff0c\u4f46\u56e0\u4e3a Task \u88ab\u5220\u9664\uff0c\u9700\u8981\u91cd\u7b97\u6570\u636e\uff0c\u6240\u4ee5\u6267\u884c\u65f6\u95f4\u88ab\u62c9\u957f\u3002<\/p>\n<p>\u8981\u60f3\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53c8\u4e0d\u80fd\u7b80\u5355\u7684\u628a Task \u5931\u8d25\u9608\u503c\u4e0a\u8c03\u3002\u5982\u679c\u9047\u5230\u4e1a\u52a1\u903b\u8f91\u5bfc\u81f4\u7684 Task \u5931\u8d25\uff0c\u8c03\u5927\u5931\u8d25\u9608\u503c\uff0c\u4f1a\u5bfc\u81f4\u5f02\u5e38\u6ca1\u6709\u88ab\u53ca\u65f6\u53d1\u73b0\uff0c\u4e25\u91cd\u7684\u4f1a\u9020\u6210\u4e8b\u6545\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u53c2\u8003\u79bb\u7ebf\u5f15\u64ce\u7684\u505a\u6cd5\uff0c\u5728 Task Fail \u65f6\u62ff\u5230\u5177\u4f53\u7684\u5931\u8d25\u539f\u56e0\u3002\u5982\u679c\u662f\u8d44\u6e90\u62a2\u5360\u6216\u8005\u673a\u5668\u4e0b\u7ebf\u4e4b\u7c7b\u7684\u5e73\u53f0\u539f\u56e0\uff0c\u4e0d\u8ba1\u5165\u5931\u8d25\u6b21\u6570\u3002\u8fd9\u6837\u5c31\u89e3\u51b3\u4e86 Flink \u4f5c\u4e1a\u9891\u7e41\u5931\u8d25\u91cd\u8bd5\u7684\u95ee\u9898\u3002\u5982\u679c\u7528\u6237\u89c9\u5f97\u8fd0\u884c\u65f6\u95f4\u8fc7\u957f\uff0c\u5c31\u9700\u8981\u8003\u8651\u8c03\u6574\u4f5c\u4e1a\u4f18\u5148\u7ea7\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005877\" alt=\"15\" title=\"15\" loading=\"lazy\"><\/p>\n<p>\u89e3\u51b3\u4e86\u8d44\u6e90\u62a2\u5360\u95ee\u9898\u540e\uff0c\u79bb\u7ebf\u96c6\u7fa4\u6162\u8282\u70b9\u95ee\u9898\u662f\u53e6\u4e00\u4e2a\u7a33\u5b9a\u6027\u9690\u60a3\u3002CPU \u5229\u7528\u7387\u8fc7\u9ad8\u548c IO \u7e41\u5fd9\u5728\u79bb\u7ebf\u96c6\u7fa4\u975e\u5e38\u5e38\u89c1\uff0c\u4e2a\u522b Task \u957f\u5c3e\u4f1a\u5bfc\u81f4\u6574\u4e2a\u4f5c\u4e1a\u6267\u884c\u65f6\u95f4\u8d85\u957f\u3002<\/p>\n<p>\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u53c2\u8003\u79bb\u7ebf\u8ba1\u7b97\u7684\u63a8\u6d4b\u6267\u884c\u5373\u53ef\u3002\u5728\u53d1\u73b0 Task \u6267\u884c\u65f6\u95f4\uff0c\u8d85\u8fc7\u540c Task \u7684\u5e73\u5747\u6267\u884c\u65f6\u95f4\u4e00\u6bb5\u65f6\u95f4\u540e\u3002\u8c03\u5ea6\u5668\u5728\u5176\u4ed6\u8282\u70b9\u62c9\u8d77\u4e00\u4e2a\u955c\u50cf Task\uff0c\u7136\u540e\u54ea\u4e2a Task \u5148\u6267\u884c\u5b8c\uff0c\u5c31\u7528\u54ea\u4e2a Task \u7684\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u4e2a\u7279\u6027\u662f\u5feb\u624b\u548c\u793e\u533a\u5171\u5efa\u5b8c\u6210\u7684\uff0c\u8fd9\u91cc\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0cFlink \u91cc\u6570\u636e\u5206\u7247\u662f\u52a8\u6001\u5206\u914d\u7684\uff0c\u548c Hive\u3001Spark \u7684\u9759\u6001\u673a\u5236\u4e0d\u540c\u3002\u6240\u4ee5 Source \u7684\u63a8\u6d4b\u6267\u884c\u5b9e\u73b0\u590d\u6742\u5ea6\u4f1a\u9ad8\u5f88\u591a\uff0c\u5e76\u4e14\u8fd8\u8981\u8003\u8651\u5230\u8d44\u6e90\u62a2\u5360\u7b49\u5f02\u5e38 case\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005878\" alt=\"16\" title=\"16\" loading=\"lazy\"><\/p>\n<p>\u968f\u7740\u805a\u5408\u7c7b\u4f5c\u4e1a\u7684\u4e0a\u7ebf\uff0c\u6211\u4eec\u53d1\u73b0\u4e00\u4e9b\u7b80\u5355\u7684\u805a\u5408\u8ba1\u7b97\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u975e\u5e38\u4e0d\u7a33\u5b9a\uff0c\u6709\u65f6\u5f88\u5feb\uff0c\u6709\u65f6\u5f02\u5e38\u7684\u6162\u3002\u4ed4\u7ec6\u5206\u6790\u4e4b\u540e\u53d1\u73b0\uff0cFlink \u9ed8\u8ba4\u4f7f\u7528 TaskManager \u6765\u505a Shuffle\uff0c\u5982\u679c Shuffle \u6570\u636e\u6ca1\u6709\u88ab\u4e0b\u6e38\u5b8c\u5168\u6d88\u8d39\uff0c\u90a3\u4e48 TaskManager \u5c31\u4e0d\u80fd\u91ca\u653e\u3002\u8fd9\u6837\u5c31\u4f1a\u5e26\u6765\u4e24\u4e2a\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u8d44\u6e90\u6d6a\u8d39\u3002\u7a7a\u95f2\u7684 TaskManager \u4e0d\u80fd\u91ca\u653e\u3002<\/li>\n<li>\u5982\u679c\u8fd9\u65f6\u5019\u9047\u5230\u8d44\u6e90\u62a2\u5360\uff0c\u6216\u8005\u673a\u5668\u4e0b\u7ebf\uff0cTaskManager \u88ab Kill \u4e86\uff0c\u90a3\u4e48 Shuffle \u6570\u636e\u5c31\u6ca1\u4e86\uff0c\u9700\u8981\u91cd\u7b97\u8fd9\u90e8\u5206\u6570\u636e\uff0c\u8fd9\u6837\u5c31\u5bfc\u81f4\u4f5c\u4e1a\u6267\u884c\u65f6\u95f4\u88ab\u62c9\u957f\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u628a Shuffle  Service \u72ec\u7acb\u51fa TaskManager\u3002\u6709\u4e24\u79cd\u5b9e\u73b0\u601d\u8def\u3002<\/p>\n<ul>\n<li>\u7c7b\u4f3c Hive \u6216 Spark\uff0c\u4f7f\u7528\u57fa\u4e8e Yarn NodeManager \u7684 Shuffle  Service\u3002\u4f46 Flink \u8fd8\u6ca1\u6709\u76f8\u5173\u5b9e\u73b0\uff0c\u9700\u8981\u6211\u4eec\u81ea\u884c\u5f00\u53d1\u3002<\/li>\n<li>\u4f7f\u7528 Remote Shuffle  Service\u3002Flink \u6709\u5f00\u6e90\u5b9e\u73b0\uff0c\u5feb\u624b\u4e5f\u6709\u81ea\u7814\u7684 Remote Shuffle  Service\u3002<\/li>\n<\/ul>\n<p>\u7ecf\u8fc7\u8c03\u7814\u4e4b\u540e\uff0c\u6211\u4eec\u9009\u62e9\u4e86\u5feb\u624b\u81ea\u7814\u7684 Remote Shuffle  Service\u3002\u56e0\u4e3a\u5feb\u624b\u7684 Remote Shuffle  Service \u652f\u6301 Push-Based Shuffle\u3002Shuffle  Service \u4f1a\u5c06\u76f8\u540c Shuffle Partition \u7684\u6570\u636e\u5408\u5e76\uff0cTask \u53ea\u9700\u4ece\u4e00\u4e2a\u5730\u65b9\u5c31\u53ef\u4ee5\u8bfb\u53d6\u5230\u5168\u90e8\u7684 Shuffle \u6570\u636e\uff0c\u793e\u533a\u7684 Remote Shuffle  Service \u672a\u6765\u4e5f\u4f1a\u652f\u6301\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u5feb\u624b\u7684 Remote Shuffle  Service \u5177\u6709\u7aef\u5230\u7aef\u6570\u636e\u4e00\u81f4\u6027\u7684\u6821\u9a8c\uff0c\u5bf9\u6570\u636e\u8d28\u91cf\u6709\u5f88\u597d\u7684\u4fdd\u969c\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005879\" alt=\"17\" title=\"17\" loading=\"lazy\"><\/p>\n<p>\u968f\u7740\u8fc1\u79fb\u4f5c\u4e1a\u91cf\u7684\u589e\u957f\uff0c\u9762\u4e34\u4e00\u4e2a\u5f88\u68d8\u624b\u7684\u95ee\u9898\uff0c\u8bbe\u7f6e\u7684\u9ed8\u8ba4\u5e76\u53d1\u5ea6\u5bf9\u5927\u90e8\u5206\u4f5c\u4e1a\u6765\u8bf4\u90fd\u4e0d\u662f\u6700\u4f18\u7684\u3002<\/p>\n<p>\u5728\u5b9e\u65f6\u8ba1\u7b97\u573a\u666f\uff0c\u4f5c\u4e1a\u5e76\u53d1\u5ea6\u90fd\u662f\u7528\u6237\u81ea\u5df1\u8bbe\u7f6e\u7684\u3002\u4f46\u5bf9\u79bb\u7ebf\u8ba1\u7b97\u6765\u8bf4\uff0c\u7528\u6237\u4e0d\u9700\u8981\u8bbe\u7f6e\u5e76\u53d1\u5ea6\uff0c\u5f15\u64ce\u4f1a\u6839\u636e\u6570\u636e\u91cf\u81ea\u52a8\u8ba1\u7b97\u51fa\u5bf9\u5e94\u7684\u5e76\u53d1\u5ea6\u3002\u5bf9\u6211\u4eec\u6765\u8bf4\uff0c\u624b\u52a8\u8bbe\u7f6e\u5e76\u53d1\u5ea6\u662f\u4e0d\u73b0\u5b9e\u7684\u3002\u7531\u4e8e\u6570\u636e\u91cf\u6bcf\u5929\u90fd\u5728\u53d8\u5316\uff0c\u4e0d\u80fd\u6bcf\u5929\u90fd\u7528\u540c\u6837\u7684\u5e76\u53d1\u3002<\/p>\n<p>\u5982\u679c\u9700\u8981\u624b\u52a8\u8bbe\u7f6e\u5e76\u53d1\u5ea6\uff0c\u5c31\u65e0\u6cd5\u5b9e\u73b0\u5e73\u6ed1\u8fc1\u79fb Hive\/Spark \u4f5c\u4e1a\u7684\u76ee\u6807\u3002\u8fd9\u4e2a\u95ee\u9898\u662f\u6211\u4eec\u548c\u793e\u533a\u5171\u5efa\u89e3\u51b3\u7684\uff0cAdaptive Scheduler \u6839\u636e\u6570\u636e\u91cf\u81ea\u52a8\u9884\u4f30\u5408\u9002\u7684\u5e76\u53d1\u5ea6\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u65e0\u9700\u4fee\u6539\u7528\u6237\u4f5c\u4e1a\uff0c\u5b9e\u73b0\u5e73\u6ed1\u8fc1\u79fb\u3002<\/p>\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u5408\u5e76\u5c0f\u6587\u4ef6\u7684\u5e76\u53d1\u5ea6 Adaptive Scheduler \u6682\u65f6\u4e0d\u80fd\u51c6\u786e\u9884\u4f30\uff0c\u6211\u4eec\u901a\u8fc7 Hack \u7684\u65b9\u5f0f\u4e34\u65f6\u89e3\u51b3\uff0c\u540e\u7eed\u793e\u533a\u4e5f\u4f1a\u9488\u5bf9\u8fd9\u79cd\u7279\u6b8a case \u6269\u5c55 API \u652f\u6301\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005880\" alt=\"18\" title=\"18\" loading=\"lazy\"><\/p>\n<p>\u76ee\u524d\uff0c\u6211\u4eec\u6b63\u5728\u9010\u6b65\u4e0a\u91cf\u805a\u5408\u7c7b\u7684 Batch \u4f5c\u4e1a\uff0c\u9047\u5230\u4e86\u4e24\u4e2a\u6bd4\u8f83\u590d\u6742\u7684\u95ee\u9898\uff0c\u6b63\u5728\u548c\u793e\u533a\u4e00\u8d77\u89e3\u51b3\u3002<\/p>\n<ul>\n<li>Hive UDAF \u7684\u652f\u6301\u3002\u76ee\u524d\uff0cFlink \u53ea\u652f\u6301 Partial1 \u548c Final \u6a21\u5f0f\u7684 Hive UDAF\uff0c\u50cf Rank \u7c7b\u51fd\u6570\u6682\u65f6\u4e0d\u80fd\u652f\u6301\u3002<\/li>\n<li>Hash Agg \u7684\u652f\u6301\u3002\u76ee\u524d\uff0c\u4f7f\u7528 Hive UDAF \u7684\u4f5c\u4e1a\u90fd\u4f1a\u4f7f\u7528 Sort Agg\uff0c\u76f8\u8f83 Hash Agg \u6027\u80fd\u5dee\u5f02\u8fd8\u662f\u5f88\u660e\u663e\u7684\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u5e73\u6ed1\u8fc1\u79fb\u805a\u5408\u7c7b\u4f5c\u4e1a\uff0cHash Agg \u548c\u5b8c\u6574 Hive UDAF \u7684\u652f\u6301\u90fd\u975e\u5e38\u5fc5\u8981\u3002<\/p>\n<h3>\u4e09\u3001\u6838\u5fc3\u4f18\u5316\u89e3\u8bfb<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005881\" alt=\"19\" title=\"19\" loading=\"lazy\"><\/p>\n<p>Flink Batch \u5728\u5feb\u624b\u843d\u5730\u4e0a\u7ebf\u7684\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86\u8bf8\u591a\u95ee\u9898\uff0c\u5305\u62ec\u8bed\u6cd5\u517c\u5bb9\u3001Hive Connector\u3001\u7a33\u5b9a\u6027\u7b49\u591a\u4e2a\u65b9\u9762\u3002\u9488\u5bf9\u8fd9\u4e9b\u95ee\u9898\uff0c\u5feb\u624b\u548c\u793e\u533a\u4e00\u8d77\u5408\u4f5c\uff0c\u5171\u540c\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u6210\u529f\u63a8\u8fdb\u4e86 Flink Batch \u7684\u4e0a\u7ebf\u3002\u63a5\u4e0b\u6765\uff0c\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u793e\u533a\u4ece\u80fd\u7528\u3001\u597d\u7528\u3001\u7a33\u5b9a\u53ef\u7528\u7b49\u591a\u4e2a\u65b9\u9762\u505a\u7684\u4f18\u5316\u6539\u8fdb\u5de5\u4f5c\u3002<\/p>\n<p>\u7531\u4e8e Flink \u662f\u6807\u51c6\u7684 ANSI SQL\uff0cHive SQL \u4e0e ANSI SQL \u8bed\u6cd5\u5dee\u5f02\u8f83\u591a\u3002\u4e3a\u4e86\u8ba9 Hive SQL \u5e73\u8fc1\u5230 Flink SQL \u5f15\u64ce\u4e0a\uff0c\u5feb\u624b\u9009\u62e9\u4e86\u4f7f\u7528 Hive Dialect\u3002\u8fd9\u6837\u7684\u8bdd\uff0c\u7edd\u5927\u90e8\u5206\u7684\u4f5c\u4e1a\u90fd\u53ef\u4ee5\u8fc1\u79fb\uff0c\u4e0d\u9700\u8981\u7528\u6237\u4fee\u6539 SQL\u3002\u867d\u7136\u5728 Flink 1.16 \u7248\u672c\u4e4b\u524d\uff0c\u793e\u533a\u5728 Hive Dialect \u517c\u5bb9\u4e0a\uff0c\u5df2\u7ecf\u505a\u4e86\u5f88\u591a\u5de5\u4f5c\u3002\u4f46\u79bb\u5b8c\u5168\u517c\u5bb9 Hive SQL\uff0c\u4ecd\u6709\u5dee\u8ddd\u3002\u5feb\u624b\u9009\u5b9a\u4e86\u4e00\u6279\u51c6\u5907\u8fc1\u79fb\u7684\u4f5c\u4e1a\u540e\uff0c\u901a\u8fc7\u89e3\u6790\u9a8c\u8bc1\uff0c\u53d1\u73b0\u8bf8\u591a\u4e0d\u652f\u6301\u7684\u8bed\u6cd5\u3002<\/p>\n<p>\u5728\u5feb\u624b\u7ed9\u51fa input \u540e\uff0c\u793e\u533a\u7b2c\u4e00\u4f18\u5148\u7ea7\u505a\u51fa\u4e86\u652f\u6301\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6211\u4eec\u5217\u51fa\u4e86\u6bd4\u8f83\u91cd\u8981\u4e14\u5f88\u5e38\u7528\u7684\u4e00\u4e9b\u8bed\u6cd5\uff0c\u6bd4\u5982 CTAS\u3001ADD JAR\u3001USING JAR\u3001\u5b8f\u547d\u4ee4\u3001Transform \u7b49\u3002<\/p>\n<p>UDF \u5728 Hive SQL \u4f1a\u7ecf\u5e38\u4f7f\u7528\u7684\uff0c\u7528\u6237\u4e00\u822c\u4f1a\u5148\u5728\u4f5c\u4e1a\u4e2d Add \u4e00\u4e2a\u8fdc\u7a0b\u7684 UDF JAR\uff0c\u7136\u540e\u6ce8\u518c\u5e76\u4f7f\u7528\u3002\u5728 Flink \u4e2d\uff0c\u5f53\u524d\u4e0d\u652f\u6301 Add JAR\uff0c\u5bfc\u81f4\u5f88\u591a\u4f5c\u4e1a\u90fd\u65e0\u6cd5\u8fc1\u79fb\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u7b97\u6cd5\u540c\u5b66\u4e0d\u559c\u6b22\u5199 Java UDF\uff0c\u4ed6\u4eec\u4e00\u822c\u7528 python \u5199\u811a\u672c\uff0c\u7136\u540e\u901a\u8fc7 transform \u6765\u5904\u7406\u6570\u636e\u3002\u901a\u8fc7\u8865\u5168 Hive Dialect \u8bed\u6cd5\uff0c\u89e3\u51b3\u4e86\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u7684\u7b2c\u4e00\u4e2a block\u3002\u6210\u529f\u4fdd\u8bc1\u4e86\u73b0\u6709\u7684 Hive SQL\uff0c\u80fd\u8dd1\u5728 Flink \u5f15\u64ce\u4e0a\u3002<\/p>\n<p>\u793e\u533a\u5728 Flink 1.16 \u7248\u672c\u505a\u4e86\u5927\u91cf\u5de5\u4f5c,\u8865\u5168 Hive \u8bed\u6cd5\u3002\u76ee\u524d\uff0c\u901a\u8fc7 qtest \u6d4b\u8bd5\u4e0b\u6765\uff0c\u6574\u4f53\u517c\u5bb9\u5ea6\u80fd\u8fbe\u5230 95%\uff0c\u57fa\u672c\u80fd\u4fdd\u8bc1\u7528\u6237\u73b0\u6709\u7684 Query \u90fd\u80fd\u8fc1\u5230 Flink \u4e0a\u6765\u3002Flink-25592&#038;Flink-26360\uff0c\u8fd9\u4e24\u4e2a umbrella issue \u5728\u8ffd\u8e2a Flink Batch \u76f8\u5173\u7684\u5de5\u4f5c\u3002\u7531\u4e8e CTAS&#038;USING JAR \u8fd9\u4e24\u4e2a\u529f\u80fd\uff0c\u6d89\u53ca\u5230 PUBLIC API \u7684\u6539\u52a8\uff0c\u5728\u793e\u533a\u6709\u5bf9\u5e94\u7684 FLIP \u8bbe\u8ba1\u6587\u6863\uff0c\u56e0\u6b64\u63a5\u4e0b\u6765\u6211\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u4e00\u4e0b\u8fd9\u5757\u7684\u8bbe\u8ba1\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005882\" alt=\"20\" title=\"20\" loading=\"lazy\"><\/p>\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5148\u4ecb\u7ecd\u4e00\u4e0b FLIP-214 Create Function using JAR \u529f\u80fd\u3002\u7531\u4e8e\u8fd9\u4e2a\u529f\u80fd\u6d89\u53ca\u5230 SQL \u6a21\u5757\u7684 ClassLoader \u7684\u6539\u52a8\u3002\u56e0\u6b64\uff0c\u6709\u5fc5\u8981\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u8bbe\u8ba1\u601d\u8def\uff0c\u907f\u514d\u5927\u5bb6\u8e29\u4e00\u4e9b ClassLoader \u7684\u5751\u3002<\/p>\n<p>\u5199 SQL \u7684\u4eba\u90fd\u77e5\u9053\uff0c\u7531\u4e8e\u4e1a\u52a1\u903b\u8f91\u4e94\u82b1\u516b\u95e8\uff0c\u8ba1\u7b97\u5f15\u64ce\u5185\u7f6e\u7684\u51fd\u6570\u5f80\u5f80\u4e0d\u80fd\u6ee1\u8db3\u9700\u6c42\u3002\u5728\u6b64\u79cd\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u7528\u6237\u624b\u5199 UDF \u6ee1\u8db3\u9700\u6c42\uff0c\u5c24\u5176\u662f Java \u6280\u672f\u6808\u7684\u5927\u6570\u636e\u5f15\u64ce\u3002\u6211\u4eec\u4f1a\u628a UDF \u6253\u5230 JAR \u5305\u91cc\uff0c\u7136\u540e\u4e0a\u4f20\u5230\u67d0\u4e2a\u8fdc\u7a0b\u7684 HDFS \u5730\u5740\u4e0a\uff0c\u5728\u4f7f\u7528\u7684\u65f6\u5019\u5148 Add JAR \u6216\u8005\u76f4\u63a5\u57fa\u4e8e JAR \u5305\u521b\u5efa UDF\u3002<\/p>\n<p>\u8003\u8651\u5230\u8be5\u573a\u666f\u4ee5\u53ca\u5feb\u624b\u7684\u4e1a\u52a1\u9700\u6c42\uff0c\u793e\u533a\u5728 1.16 \u652f\u6301\u4e86 USING JAR \u529f\u80fd\u3002\u6574\u4f53\u7684\u8bed\u6cd5\u90e8\u5206\u5982 PPT \u4e2d\u7ea2\u8272\u90e8\u5206\u6807\u51fa\u7684\u5b57\u4f53\uff0c\u76f8\u6bd4\u4e8e\u4e4b\u524d\uff0c\u591a\u4e86 USING JAR \u7684\u5173\u952e\u5b57\uff0c\u5e76\u4e14\u5141\u8bb8\u6307\u5b9a JAR \u5305\u7684\u5730\u5740\uff0c\u8be5\u5730\u5740\u53ef\u4ee5\u662f\u8fdc\u7a0b\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f Local \u7684\u3002\u76ee\u524d\u6211\u4eec\u4ec5 Java&#038;Scala \u8bed\u8a00\u652f\u6301\u8be5\u8bed\u6cd5\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005883\" alt=\"21\" title=\"21\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u6765\u8be6\u7ec6\u4ecb\u7ecd\u4e00\u4e0b\u5982\u4f55\u4f7f\u7528 USING JAR \u8fd9\u4e2a\u529f\u80fd\uff0c\u4ee5\u53ca\u5176\u6267\u884c\u673a\u5236\u3002\u9996\u5148\uff0c\u6ce8\u518c UDF\uff0c\u5728\u6ce8\u518c UDF \u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f1a\u89e3\u6790 UDF \u7684 DDL\uff0c\u5148\u5224\u65ad\u51fd\u6570\u662f\u5426\u662f temporary\u3002\u5982\u679c\u4e0d\u662f\uff0c\u5219\u76f4\u63a5\u6ce8\u518c\u5230 Catalog \u4e2d\uff0c\u4e0d\u505a\u4efb\u4f55\u5176\u4ed6\u989d\u5916\u7684\u5de5\u4f5c\u3002\u5982\u679c\u662f temporary\uff0c\u6211\u4eec\u4f1a\u63a5\u7740\u5224\u65ad JAR \u5305\u7684\u5730\u5740\uff0c\u662f\u672c\u5730\u6587\u4ef6\uff0c\u8fd8\u662f\u8fdc\u7a0b\u7684 HDFS\u3001OSS \u5730\u5740\u3002<\/p>\n<p>\u5982\u679c\u662f Local JAR\uff0c\u5219\u4f1a\u6821\u9a8c JAR \u5305\u662f\u5426\u5408\u6cd5\uff0c\u5982\u679c JAR \u5305\u5408\u6cd5\uff0c\u4f1a\u628a JAR \u5305\u5730\u5740\u6dfb\u52a0\u5230 ResourceManager \u4e2d\uff0c\u540c\u65f6\u4e5f\u6dfb\u52a0\u5230 MutableURLClassLoader \u4e2d\u3002<\/p>\n<p>\u8fd9\u91cc\u9700\u8981\u989d\u5916\u7684\u8bf4\u660e\u4e00\u4e0b\uff0c\u4e3a\u4e86\u89e3\u51b3 Flink Table \u6a21\u5757\u4e2d\u7ecf\u5e38\u51fa\u73b0\u7684 Connector&#038;Catalog \u76f8\u5173\u7684 ClassLoader \u95ee\u9898\u30021.16 \u7248\u672c\u793e\u533a\u5728 Table \u6a21\u5757\u5f15\u5165\u4e86\u4e00\u4e2a MutableURLClassLoader\uff0c\u6bcf\u4e2a TableEnvironment \u6301\u6709\u4e00\u4e2a\u8be5 ClassLoader\uff0c\u5141\u8bb8\u52a8\u6001\u7684\u6dfb\u52a0 JAR \u5305\u5230 ClassLoader \u4e2d\uff0c\u8fd9\u5c31\u89e3\u51b3\u4e86\u52a8\u6001\u52a0\u8f7d JAR \u5305\u7684\u95ee\u9898\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u4f1a\u628a\u8be5 JAR \u5305\u6ce8\u518c\u5230 FunctionCatalog \u4e2d\u7ba1\u7406\u3002\u5982\u679c JAR \u5305\u662f\u8fdc\u7a0b\u7684\u5730\u5740\uff0c\u4f1a\u591a\u4e00\u6b65\u4e0b\u8f7d\u7684\u52a8\u4f5c\uff0c\u8fd9\u4e2a\u52a8\u4f5c\u7531 ResourceManager \u6765\u5b8c\u6210\uff0c\u628a JAR \u5305\u4e0b\u8f7d\u5230\u672c\u5730\u7684\u4e34\u65f6\u76ee\u5f55\uff0c\u540c\u65f6\u52a0\u8f7d\u5230 MutableURLClassLoader \u4e2d\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b65\u662f\u4f7f\u7528 UDF\uff0c\u5982\u679c\u5728\u4f5c\u4e1a\u7684 Query \u4e2d\u4f7f\u7528\u4e86 UDF\uff0c\u5728 Query \u89e3\u6790\u4f18\u5316\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u5148\u5224\u65ad\u8be5 Function \u662f temporary \u7684\u8fd8\u662f\u6301\u4e45\u5316\u7684\u3002\u5982\u679c\u662f\u540e\u8005\uff0c\u4f1a\u4ece Catalog \u4e2d\u62ff\u51fa\u5176 JAR \u5730\u5740\u4fe1\u606f\uff0c\u5148\u628a JAR \u5305\u4e0b\u8f7d\u5230\u672c\u5730\uff0c\u5e76\u52a0\u8f7d\u5230 ClassLoader \u4e2d\uff0c\u63a5\u7740\u8fdb\u884c Query \u7684\u4f18\u5316\uff0c\u5e76\u751f\u6210 JobGraph\u3002<\/p>\n<p>\u751f\u6210 JobGraph \u4e4b\u540e\uff0c\u7b2c\u4e09\u6b65\u5219\u662f\u8981\u628a\u4f5c\u4e1a\u90e8\u7f72\u5230\u96c6\u7fa4\u4e0a\u8fd0\u884c\u3002\u6211\u4eec\u5728 Query \u4f18\u5316\u7684\u65f6\u5019\u9700\u8981 JAR \u5305\uff0c\u540c\u65f6\u5728\u96c6\u7fa4\u4e0a\u8fd0\u884c\u7684\u65f6\u5019\u4e5f\u9700\u8981\u8fd9\u4e9b JAR \u5305\uff0c\u5426\u5219\u4f5c\u4e1a\u8fd0\u884c\u65f6\u5c31\u4f1a\u51fa\u73b0 ClassNotFoundException\u3002\u90a3\u6211\u4eec\u662f\u600e\u4e48\u505a\u7684\u5462\uff1f<\/p>\n<p>\u8fd9\u91cc\u6211\u4eec\u5229\u7528\u4e86 Flink \u7684 BlobServer\uff0c\u5728\u5f80\u96c6\u7fa4\u4e0a\u63d0\u4ea4\u4f5c\u4e1a\u65f6\uff0c\u6211\u4eec\u4f1a\u5148\u628a ResourceManager \u4e2d\u7ef4\u62a4\u7684\u6240\u6709\u7684\u672c\u5730 JAR \u5305\uff0c\u4e0a\u4f20\u5230 Flink JobManager \u7684 BlobServer \u4e2d\uff0c\u4e5f\u5c31\u662f\u56fe\u4e2d\u9ec4\u8272\u865a\u7ebf\u6807\u51fa\u7684\u90e8\u5206\uff1b\u5728\u4f5c\u4e1a\u6267\u884c\u65f6\uff0c\u7531 TM \u8d1f\u8d23\u4ece BlobServer \u4e2d\u62c9\u53d6\u8fd9\u4e9b JAR \u5305\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005884\" alt=\"22\" title=\"22\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4ecb\u7ecd\u53e6\u4e00\u4e2a\u6bd4\u8f83\u5e38\u7528\u7684\u529f\u80fd CTAS\u3002\u8fd9\u4e2a\u8bed\u6cd5\u5728\u6240\u6709\u5927\u6570\u636e\u8ba1\u7b97\u5f15\u64ce\u4e2d\u90fd\u652f\u6301\uff0c\u76f8\u6bd4 CREATE TABLE \u8bed\u6cd5\uff0c\u5176\u4e0d\u540c\u7684\u5730\u65b9\u5728\u4e8e\u6587\u672c\u4e2d\u7ea2\u8272\u6807\u51fa\u7684\u5b57\u4f53\u3002<\/p>\n<p>\u8be5\u8bed\u6cd5\u7684\u4f5c\u7528\u662f\uff0c\u7531\u5f15\u64ce\u57fa\u4e8e SELECT Query \u81ea\u52a8\u63a8\u65ad\u51fa\u76ee\u6807\u8868\u7684 Schema\uff0c\u5e76\u7531 Catalog \u8d1f\u8d23\u521b\u5efa\uff1b\u5176\u7b49\u6548\u4e8e\u5148\u521b\u5efa\u76ee\u6807\u8868\uff0c\u518d\u5199\u4e00\u4e2a insert into&#8230;select query\uff0c\u5176\u6700\u5927\u7684\u597d\u5904\u662f\u5728 Query \u6bd4\u8f83\u590d\u6742\u7684\u65f6\u5019\uff0c\u907f\u514d\u4e86\u7528\u6237\u624b\u5199\u76ee\u6807\u8868\u7684 DDL\uff0c\u7b80\u5316\u4e86\u7528\u6237\u7684\u5de5\u4f5c\u91cf\uff0c\u8fd9\u4e2a\u529f\u80fd\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005885\" alt=\"23\" title=\"23\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4ecb\u7ecd\u4e00\u4e0b CTAS \u6574\u4f53\u7684\u6267\u884c\u6d41\u7a0b\u3002\u9996\u5148\uff0c\u7528\u6237\u5199\u4e86\u4e00\u4e2a CTAS Query\uff0c\u5728\u5ba2\u6237\u7aef\u7f16\u8bd1\u4f18\u5316\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f1a\u5148\u57fa\u4e8e Query \u63a8\u5bfc\u51fa\u76ee\u6807\u8868\u7684 Schema\u3002\u7136\u540e\uff0c\u628a\u5bf9\u5e94\u7684 Catalog \u5e8f\u5217\u5316\u3002\u5e8f\u5217\u5316\u7684\u76ee\u7684\u662f\uff0c\u4e3a\u4e86\u5728 JobManager \u4e0a\u80fd\u53cd\u5e8f\u5217\u5316\uff0c\u6267\u884c\u5efa\u8868\u7684\u52a8\u4f5c\u3002\u540c\u65f6\uff0c\u6211\u4eec\u751f\u6210\u4e00\u4e2a\u94a9\u5b50\u5bf9\u8c61\uff0c\u7531\u8fd9\u4e2a\u94a9\u5b50\u5728 JobManager \u8d1f\u8d23\u8c03\u7528 Catalog \u521b\u5efa\u76ee\u6807\u8868\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b65\u5c31\u662f\u4f5c\u4e1a\u7684\u6267\u884c\u3002\u5728\u4f5c\u4e1a\u5f00\u59cb\u8c03\u5ea6\u524d\uff0c\u6211\u4eec\u9996\u5148\u5728 JobManager \u4e0a\u628a\u94a9\u5b50\u5bf9\u8c61\u53ca Catalog \u5bf9\u8c61\u53cd\u5e8f\u5217\u5316\u56de\u6765\u3002\u63a5\u7740\uff0c\u7531\u94a9\u5b50\u8c03\u7528 Catalog \u5148\u521b\u5efa\u76ee\u6807\u8868\u3002\u7136\u540e\uff0c\u8c03\u5ea6\u4f5c\u4e1a\u3002<\/p>\n<p>\u5047\u8bbe\u4f5c\u4e1a\u6700\u7ec8\u6210\u529f\u6267\u884c\uff0c\u5219\u6ca1\u6709\u989d\u5916\u7684\u52a8\u4f5c\u3002\u5982\u679c\u4f5c\u4e1a\u6267\u884c\u5931\u8d25\uff0c\u6216\u8005\u88ab\u624b\u52a8\u53d6\u6d88\uff0c\u51fa\u4e8e\u539f\u5219\u6027\u7684\u8003\u8651\uff0c\u6211\u4eec\u4f1a\u901a\u8fc7\u94a9\u5b50\u8c03\u7528 Catalog \u628a\u521b\u5efa\u7684\u76ee\u6807\u8868\u7ed9 Drop \u6389\uff0c\u4fdd\u8bc1\u6700\u7ec8\u6ca1\u6709\u5bf9\u5916\u90e8\u7cfb\u7edf\u4ea7\u751f\u526f\u4f5c\u7528\u3002<\/p>\n<p>\u8003\u8651\u5230 Flink \u662f\u4e00\u4e2a\u6d41\u6279\u4e00\u4f53\u7684\u8ba1\u7b97\u5f15\u64ce\uff0cCTAS \u8bed\u6cd5\u5728\u6d41\u6279\u4e24\u79cd\u573a\u666f\u90fd\u80fd\u4f7f\u7528\u3002\u4f46\u4e00\u822c\u5728\u6d41\u573a\u666f\u4e0b\uff0c\u4f5c\u4e1a\u5931\u8d25\u65f6\uff0c\u6211\u4eec\u4e0d\u4f1a\u624b\u52a8\u5220\u9664\u8868\uff0c\u800c\u662f\u9760\u5916\u90e8\u7cfb\u7edf\u7684\u66f4\u65b0\u80fd\u529b\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u6700\u7ec8\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u4e00\u4e2a\u539f\u5b50\u6027\u76f8\u5173\u7684 option \u7531\u7528\u6237\u6765\u51b3\u5b9a\u662f\u5426\u9700\u8981\u4fdd\u8bc1\u6570\u636e\u7684\u539f\u5b50\u6027\u3002\u793e\u533a\u5728 Flink 1.16 \u7248\u672c\u53ea\u5b8c\u6210\u4e86 CTAS \u7684\u4e00\u4e2a\u57fa\u672c\u529f\u80fd\uff0c\u8fd8\u6ca1\u6709\u652f\u6301\u539f\u5b50\u6027\uff0c\u8fd9\u4e2a\u4f1a\u5728 1.17 \u5b8c\u6210\uff0c\u66f4\u591a\u7ec6\u8282\u5927\u5bb6\u53ef\u4ee5\u53bb\u770b FLIP-218 \u7684\u8bbe\u8ba1\u6587\u6863\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005886\" alt=\"24\" title=\"24\" loading=\"lazy\"><\/p>\n<p>\u5728\u5feb\u624b Flink Batch \u5b9e\u8df5\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53d1\u73b0 Hive Connector \u8bf8\u591a\u65b9\u9762\u7684\u95ee\u9898\u3002\u6bd4\u5982 Split \u8ba1\u7b97\u52a0\u901f\uff0c\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u3001\u5c0f\u6587\u4ef6\u5408\u5e76\u7b49\u7b49\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5217\u51fa\u4e86\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u76f8\u5bf9\u6bd4\u8f83\u91cd\u8981\u7684\u4e00\u4e9b\u529f\u80fd\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u4e9b\u4f18\u5316\uff0c\u6211\u4eec\u4e30\u5bcc\u4e86 Hive Connector \u7684\u80fd\u529b\uff0c\u4f7f\u5176\u5728 Batch \u573a\u666f\u4e0b\u66f4\u52a0\u597d\u7528\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u52a8\u6001\u5206\u533a\u5199\u5165\u4f18\u5316\u548c\u5c0f\u6587\u4ef6\u5408\u5e76\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005887\" alt=\"25\" title=\"25\" loading=\"lazy\"><\/p>\n<p>\u4e0d\u540c\u4e8e\u9759\u6001\u5206\u533a\u7684\u5199\u5165\uff0c\u603b\u662f\u9700\u8981\u7528\u6237\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\u3002\u52a8\u6001\u5206\u533a\u5141\u8bb8\u7528\u6237\u5728\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u4e0d\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\u3002<\/p>\n<p>\u6bd4\u5982\uff0c\u6709\u8fd9\u6837\u4e00\u4e2a\u5206\u533a\u8868\uff1a\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u7684 SQL \u8bed\u53e5\u5411\u8be5\u5206\u533a\u8868\u5199\u5165\u6570\u636e\u3002<\/p>\n<p>\u5728\u8be5 SQL \u8bed\u53e5\u4e2d\uff0c\u7528\u6237\u6ca1\u6709\u6307\u5b9a\u5206\u533a\u5217\u7684\u503c\uff0c\u8fd9\u5c31\u662f\u4e00\u4e2a\u5178\u578b\u7684\u52a8\u6001\u5206\u533a\u5199\u5165\u7684\u4f8b\u5b50\u3002<\/p>\n<p>\u5728 Flink \u4e2d\uff0c\u5bf9\u5e94\u751f\u6210\u7684 plan \u662f\u4ec0\u4e48\u5462\uff1f\u5982\u53f3\u8fb9\u6267\u884c\u8ba1\u5212\u56fe\u6240\u793a\uff0c\u8fd9\u91cc\u4f1a\u6709\u56db\u4e2a\u8282\u70b9\u3002\u5176\u4e2d\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u7070\u8272\u7684 Sort \u8282\u70b9\u3002Flink \u5728\u52a8\u6001\u5206\u533a\u5199\u5165\u65f6\uff0c\u4f1a\u628a\u6570\u636e\u6309\u7167\u52a8\u6001\u5206\u533a\u5217\u5148\u505a\u4e00\u4e2a\u6392\u5e8f\uff0c\u7136\u540e\u518d\u4e00\u4e2a\u4e00\u4e2a\u5206\u533a\u7684\u5199\u5165\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u6837\u5e26\u6765\u4e86\u4e00\u4e9b\u597d\u5904\uff0c\u4f46\u4e5f\u5bfc\u81f4\u4f5c\u4e1a\u7684\u6267\u884c\u65f6\u95f4\u53d8\u7684\u66f4\u957f\u3002\u56e0\u6b64\uff0c\u9488\u5bf9\u8be5\u73b0\u72b6\u548c\u5feb\u624b\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u4e00\u4e2a\u9009\u9879\uff0c\u5728\u5199\u5165\u52a8\u6001\u5206\u533a\u65f6\uff0c\u5141\u8bb8\u7528\u6237\u624b\u52a8\u5173\u95ed Sort \u8282\u70b9\uff0c\u907f\u514d\u989d\u5916\u7684\u6392\u5e8f\uff0c\u52a0\u5feb\u4e0b\u6e38\u6570\u636e\u7684\u4ea7\u51fa\u901f\u5ea6\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005888\" alt=\"26\" title=\"26\" loading=\"lazy\"><\/p>\n<p>\u5c0f\u6587\u4ef6\u95ee\u9898\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4e5f\u662f\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u95ee\u9898\u3002\u5728\u5199\u5165 Hive \u8868\u7684\u65f6\u5019\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5199\u5165\u7684\u901f\u5ea6\uff0c\u4f5c\u4e1a\u7684\u5e76\u53d1\u8bbe\u7f6e\u8f83\u5927\u3002\u867d\u7136\u52a0\u5feb\u4e86\u5199\u5165\u901f\u5ea6\uff0c\u4f46\u4e5f\u5f15\u5165\u4e86\u5c0f\u6587\u4ef6\u95ee\u9898\u3002<\/p>\n<p>\u5c0f\u6587\u4ef6\u4f1a\u589e\u52a0 HDFS NameNode \u538b\u529b\u548c RPC \u538b\u529b\uff0c\u5bf9\u4e0b\u6e38\u7684\u8bfb\u53d6\u4efb\u52a1\u4e0d\u53cb\u597d\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5728\u52a8\u6001\u5206\u533a\u5199\u5165\u65f6\uff0c\u67d0\u4e2a\u5e76\u53d1\u53ef\u80fd\u4f1a\u540c\u65f6\u5199\u5f88\u591a\u52a8\u6001\u5206\u533a\uff0c\u5bfc\u81f4\u5927\u91cf\u7684\u5c0f\u6587\u4ef6\u3002\u57fa\u4e8e\u4e0a\u8ff0\u95ee\u9898\uff0c\u6211\u4eec\u5728 Hive Batch \u5199\u5165\uff0c\u652f\u6301\u4e86\u81ea\u9002\u5e94\u5408\u5e76\u5c0f\u6587\u4ef6\u3002<\/p>\n<p>\u4e0a\u56fe\u662f Batch \u6a21\u5f0f\u4e0b\uff0cHive Sink \u652f\u6301\u5c0f\u6587\u4ef6\u5408\u5e76\u7684\u62d3\u6251\u3002\u6211\u4eec\u770b\u5230\u56fe\u4e2d\u6709\u56db\u4e2a\u8282\u70b9\uff0c\u5206\u522b\u662f Writer\u3001CompactorCoordinator\u3001Rewriter \u548c PartitionCommitter\u3002\u8fd9\u91cc\u7684\u6838\u5fc3\u662f CompactorCoordinator \u548c Rewriter\u3002<\/p>\n<p>CompactorCoordinator \u662f\u5355\u5e76\u53d1\u8282\u70b9\uff0c\u4e0a\u6e38\u7684 Writer \u5199\u5b8c\u6587\u4ef6\u540e\uff0c\u628a\u6587\u4ef6\u8def\u5f84\u4fe1\u606f\u544a\u8bc9 CompactorCoordinator\u3002CompactorCoordinator \u62ff\u5230\u4e0a\u6e38\u7684\u6240\u6709\u6587\u4ef6\u540e\uff0c\u5224\u65ad\u54ea\u4e9b\u6587\u4ef6\u662f\u5c0f\u6587\u4ef6\uff0c\u9700\u8981\u5408\u5e76\u6210\u7684\u76ee\u6807\u6587\u4ef6\u5927\u5c0f\uff0c\u4ece\u800c\u51b3\u5b9a\u628a\u54ea\u4e9b\u5c0f\u6587\u4ef6\u5408\u5e76\u6210\u4e00\u4e2a\u76ee\u6807\u5927\u6587\u4ef6\u3002<\/p>\n<p>\u7136\u540e\u628a\u8fd9\u4e9b\u4fe1\u606f\u544a\u8bc9\u7ed9 Rewriter\uff0c\u7531 Rewriter \u6765\u5b8c\u6210\u5408\u5e76\u7684\u5de5\u4f5c\uff0c\u6700\u540e\u7531 PartitionCommitter \u63d0\u4ea4\u5206\u533a\u4fe1\u606f\u3002\u81ea\u9002\u5e94\u5408\u5e76\u5c0f\u6587\u4ef6\u5e26\u6765\u7684\u6536\u76ca\u662f\u51cf\u5c11\u6587\u4ef6\u6570\u91cf\uff0c\u964d\u4f4e HDFS \u7684\u538b\u529b\uff1b\u63d0\u9ad8\u7528\u6237\u4f5c\u4e1a\u7684\u6570\u636e\u8bfb\u53d6\u6548\u7387\uff1b\u52a0\u5feb\u6267\u884c\u901f\u5ea6\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005889\" alt=\"27\" title=\"27\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8bb2\u4e00\u8bb2\u5728\u4f7f\u7528 UDAF \u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u6027\u80fd\u65b9\u9762\u7684\u95ee\u9898\u3002\u9996\u5148\uff0c\u6211\u5148\u6765\u4ecb\u7ecd\u4e00\u4e0b Sort-Agg \u548c Hash-Agg \u8fd9\u4e24\u4e2a\u6982\u5ff5\u3002\u4e00\u822c\u5728\u805a\u5408\u8ba1\u7b97\u573a\u666f\uff0c\u6709\u4e24\u79cd\u7b56\u7565\uff0c\u5206\u522b\u662f Sort-Agg \u548c Hash-Agg\u3002<\/p>\n<p>Sort-Agg \u662f\u5728\u805a\u5408\u8ba1\u7b97\u4e4b\u524d\uff0c\u6839\u636e group by key\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u5168\u5c40\u6392\u5e8f\u3002\u6392\u5e8f\u4e4b\u540e\uff0c\u904d\u5386\u6240\u6709\u6570\u636e\uff0c\u9047\u5230\u76f8\u540c key \u7684\u6570\u636e\uff0c\u5c31\u505a\u7d2f\u52a0\u64cd\u4f5c\u3002\u5982\u679c\u9047\u5230\u4e0d\u540c key \u7684\u6570\u636e\uff0c\u610f\u5473\u7740\u4e0a\u4e00\u4e2a group \u7684\u6240\u6709\u6570\u636e\u5df2\u7ecf\u8ba1\u7b97\u5b8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5f80\u4e0b\u6e38\u53d1\u9001\u7ed3\u679c\u3002\u7136\u540e\uff0c\u63a5\u7740\u8ba1\u7b97\u65b0 key \u5bf9\u5e94\u7684 group \u7684\u805a\u5408\u503c\u3002<\/p>\n<p>Hash-Agg \u5219\u662f\u6307\uff0c\u5728\u5185\u5b58\u4e2d\u6784\u5efa\u4e00\u4e2a Hash \u8868\uff0ckey \u662f group by \u7684 key\uff0cvalue \u662f\u6bcf\u4e2a group \u7684\u805a\u5408\u503c\uff0c\u4e00\u76f4\u5f80\u4e0a\u7d2f\u52a0\u3002\u5f53\u6240\u6709\u6570\u636e\u904d\u5386\u5b8c\uff0c\u5219\u6700\u7ec8\u7ed3\u679c\u624d\u53ef\u8f93\u51fa\u3002\u4e00\u822c\u6765\u8bf4 Hash-Agg \u5728\u5185\u5b58\u4e2d\u5b8c\u6210\uff0c\u6bd4\u8f83\u9ad8\u6548\uff0c\u800c Sort-Agg \u9700\u8981\u4e00\u6b65\u5916\u90e8\u6392\u5e8f\uff0c\u56e0\u6b64\u6027\u80fd\u76f8\u5bf9\u800c\u8a00\u4f1a\u5dee\u3002<\/p>\n<p>\u5f53\u524d\u5728 Flink \u4e2d\u5b58\u5728\u4e24\u79cd\u805a\u5408\u8ba1\u7b97\u51fd\u6570\u63a5\u53e3\uff0c\u5206\u522b\u662f ImperativeAggregateFunction \u548c DeclarativeAggregateFunction\u3002\u4e0a\u56fe\u5de6\u8fb9\u5217\u4e3e\u4e86\u8fd9\u4e24\u79cd\u63a5\u53e3\u7684\u5bf9\u5e94\u7684 UDAF \u5b9e\u73b0\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n<p>Hive UDAF \u5f53\u524d\u53ea\u80fd\u8d70 Sort-Agg \u7b56\u7565\uff0c\u6574\u4f53\u6027\u80fd\u6bd4\u8f83\u5dee\u3002\u9488\u5bf9\u8fd9\u4e2a\u95ee\u9898\uff0c\u7ecf\u8fc7\u8c03\u7814\u4e4b\u540e\uff0c\u6211\u4eec\u51b3\u5b9a\u57fa\u4e8e DeclarativeAggregateFunction \u63a5\u53e3\uff0c\u5728 Flink \u91cc\u91cd\u65b0\u5b9e\u73b0 Hive \u7684\u4e00\u4e9b\u5e38\u7528\u7684 UDAF\u3002\u8fd9\u91cc\u7684\u96be\u70b9\u662f\u8981\u505a\u5230\u4e0e Hive \u7684\u884c\u4e3a\u4fdd\u6301\u4e00\u81f4\u3002\u91cd\u65b0\u5b9e\u73b0\u4e4b\u540e\uff0c\u7edd\u5927\u90e8\u5206\u7684 Query \u90fd\u53ef\u4ee5\u4f7f\u7528 Hash-Agg\uff0c\u6574\u4f53\u4e0a\u8fbe\u5230\u4e86\u4e0e\u5185\u7f6e\u51fd\u6570\u4e00\u6837\u7684\u6027\u80fd\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005890\" alt=\"28\" title=\"28\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8bb2\u4e00\u4e0b\u53e6\u4e00\u4e2a\u6bd4\u8f83\u91cd\u8981\u7684\u529f\u80fd\u81ea\u9002\u5e94\u8c03\u5ea6\u5668\u3002\u5199\u8fc7 Flink \u6d41\u4f5c\u4e1a\u7684\u7528\u6237\u90fd\u77e5\u9053\uff0cFlink \u4f5c\u4e1a\u5728\u4e0a\u7ebf\u524d\u90fd\u9700\u8981\u8bbe\u7f6e\u5e76\u53d1\u5ea6\u3002\u5bf9\u6d41\u4f5c\u4e1a\u800c\u8a00\uff0c\u8fd9\u662f\u4e00\u4e2a\u5927\u5bb6\u9ed8\u8ba4\u63a5\u53d7\u7684\u4e8b\u60c5\u3002\u4f46\u5bf9\u4e8e\u6279\u4f5c\u4e1a\u800c\u8a00\uff0c\u60c5\u51b5\u5c31\u590d\u6742\u5f88\u591a\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6279\u4f5c\u4e1a\u6570\u91cf\u5f88\u591a\uff0c\u52a8\u8f84\u6210\u767e\u4e0a\u5343\uff0c\u4e43\u81f3\u6570\u4e07\uff0c\u7528\u6237\u4e0d\u53ef\u80fd case by case \u7684\u8c03\u5e76\u53d1\uff0c\u8d39\u65f6\u8d39\u529b\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u6570\u636e\u91cf\u6bcf\u65e5\u90fd\u6709\u53ef\u80fd\u53d8\u5316\uff0c\u96be\u4ee5\u9884\u4f30\u3002\u56e0\u6b64\uff0c\u540c\u4e00\u4e2a\u5e76\u53d1\u5ea6\u8bbe\u7f6e\u5bf9\u540c\u4e00\u4e2a\u4f5c\u4e1a\uff0c\u4e0d\u4e00\u5b9a\u4e00\u76f4\u9002\u7528\u3002\u65e0\u6cd5\u4fdd\u8bc1\u4f5c\u4e1a\u7684\u8fd0\u884c\u65f6\u95f4\u4e00\u76f4\u5728\u4e00\u4e2a\u7a33\u5b9a\u7684\u65f6\u95f4\u57fa\u7ebf\u8303\u56f4\u5185\uff0c\u5bf9\u751f\u4ea7\u7684\u5f71\u54cd\u4f1a\u6bd4\u8f83\u5927\u3002<\/p>\n<p>\u6700\u540e\uff0cSQL \u4f5c\u4e1a\uff0c\u9664\u4e86 Source \u548c Sink \u5916\uff0c\u53ea\u80fd\u914d\u7f6e\u5168\u5c40\u7edf\u4e00\u7684\u5e76\u884c\u5ea6\uff0c\u6ca1\u6cd5\u8fdb\u884c\u7ec6\u7c92\u5ea6\u5e76\u884c\u5ea6\u8bbe\u7f6e\uff0c\u4e5f\u4f1a\u9047\u5230\u8d44\u6e90\u6d6a\u8d39\u548c\u989d\u5916\u5f00\u9500\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u793e\u533a\u4e3a Flink \u5f15\u5165\u4e86\u81ea\u9002\u5e94\u6279\u5904\u7406\u8c03\u5ea6\u5668\u3002\u901a\u8fc7\u5b83\u6846\u67b6\u4f1a\u6839\u636e\u8ba1\u7b97\u8282\u70b9\u9700\u8981\u5904\u7406\u7684\u6570\u636e\u91cf\uff0c\u81ea\u52a8\u63a8\u5bfc\u8282\u70b9\u7684\u5e76\u884c\u5ea6\u3002<\/p>\n<p>\u8fd9\u6837\u7684\u5e76\u884c\u5ea6\u914d\u7f6e\u6bd4\u8f83\u901a\u7528\uff0c\u53ef\u4ee5\u9002\u7528\u4e8e\u5927\u90e8\u5206\u4f5c\u4e1a\uff0c\u65e0\u9700\u4e3a\u6bcf\u4e2a\u4f5c\u4e1a\u5355\u72ec\u914d\u7f6e\u3002\u81ea\u52a8\u8bbe\u7f6e\u7684\u5e76\u884c\u5ea6\uff0c\u80fd\u591f\u9002\u914d\u6bcf\u5929\u4e0d\u540c\u7684\u6570\u636e\u91cf\u3002\u540c\u65f6\uff0c\u7531\u4e8e\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u91c7\u96c6\uff0c\u5404\u4e2a\u8282\u70b9\u5b9e\u9645\u9700\u8981\u5904\u7406\u7684\u6570\u636e\u91cf\uff0c\u6240\u4ee5\u80fd\u591f\u8fdb\u884c\u7ec6\u7c92\u5ea6\u7684\u5e76\u884c\u5ea6\u8bbe\u7f6e\u3002\u5b83\u7684\u6d41\u7a0b\u5927\u81f4\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5f53\u4e0a\u6e38\u903b\u8f91\u8282\u70b9\u7684\u6240\u6709\u6267\u884c\u8282\u70b9\u90fd\u7ed3\u675f\u65f6\uff0c\u6211\u4eec\u4f1a\u91c7\u96c6\u5176\u4ea7\u51fa\u7684\u6570\u636e\u91cf\u5927\u5c0f\u3002<\/li>\n<li>\u5f53\u4e0b\u6e38\u903b\u8f91\u8282\u70b9\u6d88\u8d39\u7684\u6570\u636e\u91cf\u786e\u5b9a\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5e76\u884c\u5ea6\u63a8\u5bfc\u7b56\u7565\u7ec4\u4ef6\uff0c\u4e3a\u8282\u70b9\u8ba1\u7b97\u51fa\u5408\u9002\u7684\u5e76\u884c\u5ea6\u3002<\/li>\n<li>\u5728\u903b\u8f91\u8282\u70b9\u5e76\u884c\u5ea6\u786e\u5b9a\u540e\uff0c\u6211\u4eec\u4f1a\u628a\u5b83\u7684\u6267\u884c\u8282\u70b9\uff0c\u52a0\u5165\u6267\u884c\u62d3\u6251\u4e2d\uff0c\u5e76\u5c1d\u8bd5\u8fdb\u884c\u8c03\u5ea6\u548c\u90e8\u7f72\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005891\" alt=\"29\" title=\"29\" loading=\"lazy\"><\/p>\n<p>\u548c\u4f20\u7edf Flink \u4f5c\u4e1a\u6267\u884c\u4e0d\u4e00\u6837\u7684\u5730\u65b9\u5728\u4e8e\uff0c\u4ee5\u5f80\u7684\u4f5c\u4e1a\u6267\u884c\u62d3\u6251\u662f\uff0c\u5728\u4f5c\u4e1a\u63d0\u4ea4\u65f6\u5c31\u5df2\u7ecf\u6784\u5efa\uff0c\u662f\u9759\u6001\u7684\u3002\u800c\u81ea\u9002\u5e94\u6279\u5904\u7406\u8c03\u5ea6\u7684\u4f5c\u4e1a\uff0c\u6267\u884c\u62d3\u6251\u662f\u52a8\u6001\u751f\u6210\u7684\u3002\u5728\u52a8\u6001\u6267\u884c\u62d3\u6251\u4e0b\uff0c\u4e00\u4e2a\u4e0b\u6e38\u8282\u70b9\u53ef\u4ee5\u6d88\u8d39\u591a\u4e2a sub-partition\uff0c\u4f7f\u5f97\u4e0a\u6e38\u8282\u70b9\u7684\u6267\u884c\u8fc7\u7a0b\uff0c\u548c\u4e0b\u6e38\u8282\u70b9\u7684\u5e76\u884c\u5ea6\u89e3\u8026\u3002<\/p>\n<p>\u81ea\u9002\u5e94\u6279\u5904\u7406\u8c03\u5ea6\u52a0\u4e0a Hive Source \u7684\u5e76\u53d1\u63a8\u5bfc\u80fd\u529b\uff0c\u89e3\u51b3\u4e86\u5e76\u53d1\u5ea6\u8bbe\u7f6e\u7684\u95ee\u9898\u3002\u5728\u5feb\u624b\u4fa7\u62ff\u5230\u7684\u6548\u679c\u4e3b\u8981\u4f53\u73b0\u5728\u4e24\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u6709\u4e86\u8fd9\u4e2a\u529f\u80fd\uff0c\u65e0\u9700\u7528\u6237\u4e3a\u6bcf\u4e2a\u4f5c\u4e1a\u5355\u72ec\u914d\u7f6e\u5e76\u884c\u5ea6\uff0c\u4f7f\u5f97 Flink Batch \u66f4\u6613\u7528\uff0c\u652f\u6301\u7ec6\u7c92\u5ea6\u7684\u5e76\u884c\u5ea6\u8bbe\u7f6e\uff0c\u907f\u514d\u4e86\u8d44\u6e90\u6d6a\u8d39\u3002<\/li>\n<li>\u6839\u636e\u6570\u636e\u91cf\uff0c\u81ea\u52a8\u8c03\u6574\u7b97\u5b50\u7684\u5e76\u53d1\uff0c\u4fdd\u8bc1\u4f5c\u4e1a\u4e86\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u7a33\u5b9a\u8fd0\u884c\uff0c\u4fdd\u969c\u4e86\u4ea7\u51fa\u57fa\u7ebf\uff0c\u4f5c\u4e1a\u53ef\u4ee5\u5e73\u6ed1\u7684\u8fc1\u79fb\u8fc7\u6765\u5e76\u4e0a\u7ebf\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005892\" alt=\"30\" title=\"30\" loading=\"lazy\"><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4ecb\u7ecd\u4e00\u4e0b\u793e\u533a\u548c\u5feb\u624b\u5408\u4f5c\u5728\u751f\u4ea7\u7a33\u5b9a\u6027\u65b9\u9762\uff0c\u505a\u7684\u4e00\u4e2a\u6bd4\u8f83\u91cd\u8981\u7684\u529f\u80fd\u63a8\u6d4b\u6267\u884c\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u70ed\u70b9\u673a\u5668\u4e00\u822c\u90fd\u662f\u65e0\u6cd5\u907f\u514d\u7684\uff0c\u96c6\u7fa4\u6df7\u90e8\u3001\u5bc6\u96c6\u56de\u5237\u6570\u636e\uff0c\u90fd\u53ef\u80fd\u5bfc\u81f4\u4e00\u53f0\u673a\u5668\u7684\u8d1f\u8f7d\u53d8\u9ad8\u3001IO \u7e41\u5fd9\uff0c\u4f7f\u5f97\u4e0a\u9762\u8fd0\u884c\u7684 Flink \u4f5c\u4e1a\u5f02\u5e38\u7f13\u6162\u3002\u4e00\u4e9b\u5076\u53d1\u7684\u673a\u5668\u5f02\u5e38\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u540c\u6837\u7684\u95ee\u9898\u3002<\/p>\n<p>\u8fd9\u4e9b\u7f13\u6162\u7684\u4efb\u52a1\u4f1a\u5f71\u54cd\u6574\u4e2a\u4f5c\u4e1a\u7684\u6267\u884c\u65f6\u95f4\uff0c\u4f7f\u5f97\u4f5c\u4e1a\u7684\u4ea7\u51fa\u57fa\u7ebf\u65e0\u6cd5\u5f97\u5230\u4fdd\u969c\u3002\u800c\u63a8\u6d4b\u6267\u884c\uff0c\u662f\u4e00\u79cd\u5df2\u7ecf\u5f97\u5230\u666e\u904d\u7684\u8ba4\u53ef\u3001\u7528\u6765\u89e3\u51b3\u8fd9\u7c7b\u95ee\u9898\u7684\u65b9\u6cd5\u3002\u56e0\u6b64\u793e\u533a\u5728 Flink 1.16 \u7248\u672c\u4e2d\u5f15\u5165\u4e86\u8fd9\u5957\u673a\u5236\u3002<\/p>\n<p>\u5f00\u542f\u63a8\u6d4b\u6267\u884c\u540e\uff0c\u5f53\u6846\u67b6\u53d1\u73b0\u6279\u4f5c\u4e1a\u4e2d\u51fa\u73b0\u67d0\u4e2a SubTask\uff0c\u660e\u663e\u6bd4\u5176\u4ed6 SubTask \u6267\u884c\u7f13\u6162\u65f6\uff0c\u4f1a\u4e3a\u5176\u62c9\u8d77\u65b0\u7684\u6267\u884c\u5b9e\u4f8b\u3002\u6211\u4eec\u628a\u5b83\u53eb\u505a\u5f71\u5b50 Task\uff0c\u90e8\u7f72\u5728\u6b63\u5e38\u7684\u673a\u5668\u8282\u70b9\u4e0a\uff0c\u800c\u539f\u672c\u7684\u6162\u4efb\u52a1\u5b9e\u4f8b\u4f1a\u88ab\u4fdd\u7559\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>\u8fd9\u4e9b\u5f71\u5b50\u4efb\u52a1\u548c\u5bf9\u5e94\u7684\u539f\u59cb\u4efb\u52a1\uff0c\u5177\u6709\u76f8\u540c\u7684\u8f93\u5165\u548c\u4ea7\u51fa\u3002\u5176\u4e2d\uff0c\u6700\u5148\u5b8c\u6210\u7684\u4efb\u52a1\u4f1a\u88ab\u8ba4\u53ef\uff0c\u4ea7\u51fa\u7684\u6570\u636e\u53ef\u4ee5\u7528\u6765\u88ab\u4e0b\u6e38\u8282\u70b9\u6d88\u8d39\uff1b\u5176\u4ed6\u5bf9\u5e94\u7684\u5b9e\u4f8b\u4f1a\u88ab\u53d6\u6d88\uff0c\u4ea7\u51fa\u7684\u6570\u636e\u4f1a\u88ab\u6e05\u9664\u3002<\/p>\n<p>\u63a8\u6d4b\u6267\u884c\u7684\u5177\u4f53\u6d41\u7a0b\u5982\u56fe\u6240\u793a\uff0c\u5f53 SlowTaskDetector \u53d1\u73b0\u5b58\u5728\u6162\u4efb\u52a1\u65f6\uff0c\u4f1a\u901a\u77e5\u7ed9\u63a8\u6d4b\u6267\u884c\u8c03\u5ea6\u5668\u3002\u8c03\u5ea6\u5668\u4f1a\u628a\u6162\u4efb\u52a1\u6240\u5728\u673a\u5668\u8bc6\u522b\u4e3a\u70ed\u70b9\u673a\u5668\uff0c\u5c06\u5176\u52a0\u5165\u9ed1\u540d\u5355\u4e2d\u3002\u7136\u540e\uff0c\u5982\u679c\u6162\u4efb\u52a1\u7684\u8fd0\u884c\u4e2d\u7684\u6267\u884c\u5b9e\u4f8b\u6570\u5c1a\u672a\u8fbe\u5230\u4e0a\u9650\uff0c\u8c03\u5ea6\u5668\u5c31\u4f1a\u4e3a\u5176\u521b\u5efa\u65b0\u7684\u6267\u884c\u5b9e\u4f8b\uff0c\u5e76\u8fdb\u884c\u90e8\u7f72\u3002\u5f53\u4efb\u610f\u6267\u884c\u5b9e\u4f8b\u6210\u529f\u7ed3\u675f\u540e\uff0c\u8c03\u5ea6\u5668\u4f1a\u53d6\u6d88\u8be5\u5b9e\u4f8b\u5bf9\u5e94\u6267\u884c\u8282\u70b9\u7684\u5176\u4ed6\u6240\u6709\u6267\u884c\u5b9e\u4f8b\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005893\" alt=\"31\" title=\"31\" loading=\"lazy\"><\/p>\n<p>\u524d\u9762\u6211\u4eec\u4ecb\u7ecd\u4e86\u6846\u67b6\u5c42\u9762\u5b9e\u73b0\u7684\u901a\u7528\u7684\u63a8\u6d4b\u6267\u884c\u6d41\u7a0b\uff0c\u4f46\u662f\u5bf9\u4e8e Source \u548c Sink\uff0c\u63a8\u6d4b\u6267\u884c\u4f1a\u6709\u4e00\u4e9b\u7279\u6b8a\u4e4b\u5904\u3002\u5bf9\u4e8e Source \u8282\u70b9\u6765\u8bf4\uff0c\u6211\u4eec\u8981\u4fdd\u8bc1\u540c\u4e00\u4e2a Source \u5e76\u53d1\u7684\u4e0d\u540c\u6267\u884c\u5b9e\u4f8b\uff0c\u603b\u662f\u8981\u8bfb\u53d6\u76f8\u540c\u7684\u6570\u636e\u3002\u8fd9\u6837\u624d\u80fd\u4fdd\u8bc1\u7ed3\u679c\u7684\u6b63\u786e\u6027\u3002\u8fd9\u91cc\u6709\u51e0\u4e2a\u7279\u6b8a\u60c5\u51b5\u9700\u8981\u8003\u8651\u3002<\/p>\n<ul>\n<li>\u5bf9\u4e8e FLIP-27 \u65b0 Source\uff0cSource \u7aef Split \u662f\u52a8\u6001\u5206\u914d\u7684\uff0c\u6211\u4eec\u9700\u8981\u4fdd\u8bc1\u5f71\u5b50 Task \u548c\u539f\u6765\u7684\u6162 Task \u5904\u7406\u7684\u662f\u76f8\u540c\u7684 Split\u3002<\/li>\n<li>\u539f\u6765\u7684\u6162 Task \u5df2\u7ecf\u5904\u7406\u7684\u4e00\u90e8\u5206 Split\uff0c\u5f71\u5b50\u4efb\u52a1\u5904\u7406\u7684\u901f\u5ea6\u6bd4\u8f83\u5feb\uff0c\u80fd\u628a\u524d\u9762\u7684 Split \u8ffd\u4e0a\u6765\u3002\u8fd9\u65f6\u5f71\u5b50\u4efb\u52a1\u4f1a\u8bf7\u6c42\u5206\u914d\u66f4\u591a\u7684 Split\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4e5f\u9700\u8981\u539f\u6765\u6162\u4efb\u52a1\u5904\u7406\u7684\u4e5f\u662f\u76f8\u540c\u7684 Split\uff0c\u8fd9\u91cc\u53ef\u80fd\u662f\u4e2a\u76f8\u4e92\u8d5b\u9a6c\u7684\u8fc7\u7a0b\uff1b\u6700\u7ec8\u8c01\u5148\u6267\u884c\u5b8c\u6210\uff0c\u7528\u8c01\u7684\u6570\u636e\u3002<\/li>\n<li>\u7531\u4e8e\u8d44\u6e90\u62a2\u5360\u3001\u673a\u5668\u5f02\u5e38\u7b49\u539f\u56e0\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5f71\u5b50\u4efb\u52a1\u6216\u8005\u6162\u4efb\u52a1\u6302\u6389\u7684\u60c5\u51b5\u3002\u5982\u679c\u53ea\u6302\u4e86\u4e00\u4e2a Task \u53ef\u4ee5\u5148\u4e0d\u7528\u7ba1\uff1b\u5982\u679c\u4e24\u4e2a Task \u90fd\u6302\u4e86\uff0c\u63a8\u6d4b\u6267\u884c\u8c03\u5ea6\u5668\u5224\u65ad\u8bc6\u522b\u51fa\u6765\u540e\uff0c\u9700\u8981\u628a\u5df2\u7ecf\u5904\u7406\u7684 Split \u4fe1\u606f\u8fd8\u56de\u6765\uff0c\u63a5\u7740\u8c03\u5ea6\u65b0\u7684\u4efb\u52a1\uff0c\u6765\u5904\u7406\u8fd9\u4e9b Split\u3002<\/li>\n<\/ul>\n<p>\u5927\u4f53\u4e0a\u6765\u8bf4\uff0c\u5c31\u662f\u5728\u6846\u67b6\u5c42\u52a0\u5165\u4e86\u4e00\u4e2a\u7f13\u5b58\uff0c\u6765\u8bb0\u5f55\u5404\u4e2a Source \u5e76\u53d1\u5df2\u7ecf\u83b7\u53d6\u5230\u7684\u6570\u636e\u5206\u7247\uff0c\u4ee5\u53ca\u5176\u4e0b\u7684\u6240\u6709\u6267\u884c\u5b9e\u4f8b\u5df2\u7ecf\u5904\u7406\u5230\u7684\u5206\u7247\u4fe1\u606f\u3002<\/p>\n<p>\u5bf9\u4e8e Sink \u7aef\uff0c\u7531\u4e8e\u53ea\u662f\u8d1f\u8d23\u5199\u6570\u636e\uff0c\u60c5\u51b5\u5219\u7b80\u5355\u5f88\u591a\uff0c\u53ea\u9700\u8981\u4fdd\u8bc1\u5f71\u5b50\u4efb\u52a1\u548c\u6162\u4efb\u52a1\uff0c\u6700\u7ec8\u90a3\u4e2a\u5148\u6267\u884c\u5b8c\uff0c\u5c31\u63d0\u4ea4\u90a3\u4e2a\u7684\u6570\u636e\uff0c\u540c\u65f6\u6e05\u7406\u6389\u53e6\u5916\u4e00\u4e2a\u65e0\u6548 Sink \u7684\u6570\u636e\uff0c\u907f\u514d\u6570\u636e\u91cd\u590d\u3002<\/p>\n<p>\u901a\u8fc7\u63a8\u6d4b\u6267\u884c\u529f\u80fd\uff0c\u4fdd\u8bc1\u4e86 Batch \u4efb\u52a1\u6267\u884c\u7684\u7a33\u5b9a\uff0c\u4ea7\u51fa\u65f6\u95f4\u76f8\u5bf9\u7a33\u5b9a\u53ef\u63a7\uff0c\u4fdd\u969c\u4e86 Flink Batch \u5728\u5feb\u624b\u751f\u4ea7\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u6574\u4f53\u7a33\u5b9a\u6027\uff0c\u4e3a\u8fdb\u4e00\u6b65\u7684 Batch \u843d\u5730\u6253\u4e0b\u4e86\u826f\u597d\u57fa\u7840\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4ece\u80fd\u7528\u3001\u597d\u7528\u3001\u751f\u4ea7\u7a33\u5b9a\u53ef\u7528\u7b49\u4e09\u4e2a\u65b9\u9762\uff0c\u4ecb\u7ecd\u4e86\u793e\u533a\u548c\u5feb\u624b\u5408\u4f5c\u5728 Batch \u65b9\u9762\u505a\u7684\u4e00\u4e9b\u6838\u5fc3\u4f18\u5316\u6539\u8fdb\u5de5\u4f5c\u3002\u8fd9\u4e9b\u5de5\u4f5c\u4fdd\u8bc1\u4e86 Flink Batch \u5728\u5feb\u624b\u7684\u4e0a\u7ebf\uff0c\u5e76\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u7a33\u5b9a\u8fd0\u884c\u3002\u968f\u7740\u5feb\u624b\u5728 Batch \u7684\u8fdb\u4e00\u6b65\u63a8\u8fdb\uff0c\u672a\u6765\u8fd8\u4f1a\u6709\u8bf8\u591a\u65b9\u9762\u7684\u5de5\u4f5c\u8981\u505a\u3002<\/p>\n<h3>\u56db\u3001\u672a\u6765\u89c4\u5212<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005894\" alt=\"32\" title=\"32\" loading=\"lazy\"><\/p>\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6211\u4eec\u4f1a\u5728 Flink Batch \u65b9\u5411\u6301\u7eed\u6295\u5165\u3002\u76d1\u63a7\u6307\u6807\u5c55\u793a\u4ee5\u53ca History Server \u7684\u53ef\u7528\u6027\u9700\u8981\u5c3d\u5feb\u8865\u5168\uff0c\u65b9\u4fbf\u95ee\u9898\u7684\u5b9a\u4f4d\u548c\u5206\u6790\uff0c\u7528\u6237\u5c31\u53ef\u4ee5\u81ea\u52a9\u89e3\u51b3\u4e00\u4e9b\u7b80\u5355\u95ee\u9898\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5f53\u805a\u5408\u573a\u666f\u4e0b\u7684\u76f8\u5173\u95ee\u9898\u89e3\u51b3\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5927\u91cf\u8fc1\u79fb\u805a\u5408\u7c7b\u7684\u4f5c\u4e1a\u3002\u89e3\u51b3 Join \u573a\u666f\u7684\u95ee\u9898\u540e\uff0c\u5c06\u5f00\u59cb\u8fc1\u79fb\u590d\u6742 Join \u573a\u666f\u4f5c\u4e1a\uff1b<\/p>\n<p>\u5728\u6d41\u6279\u4e00\u4f53\u5b58\u50a8\u7684\u63a2\u7d22\u65b9\u9762\uff0c\u5f85\u5f15\u64ce\u80fd\u529b\u5efa\u8bbe\u540e\uff0c\u5f00\u59cb\u5efa\u8bbe\u7edf\u4e00\u7684\u5b58\u50a8\u670d\u52a1\uff0c\u7ed9\u6d41\u4f5c\u4e1a\u548c\u6279\u4f5c\u4e1a\u63d0\u4f9b\u7edf\u4e00\u7684\u8bfb\u5199 API\uff0c\u89e3\u51b3\u5197\u4f59\u5b58\u50a8\u5e26\u6765\u7684\u6210\u672c\u95ee\u9898\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=APYwDoOfdYxEnbsi4bQW6g%3D%3D.nXJYTcfeWRgyuZVQegyT9XOY1wVA3iAa9L30hUEqTFLryR%2BN%2BI5jRUMyIKQey4rWF6hYp2R1ZYbsEaau2ViYqazM%2BQy2TkLSs1xs9Vn%2FnvEdh6gagIu%2BdBxt%2BCavHs0iKj7dtMPg7e45lW%2B%2BM%2Byu3A%3D%3D\" rel=\"noopener noreferrer\">\u70b9\u51fb\u67e5\u770b\u539f\u6587\u89c6\u9891 &#038; \u6f14\u8bb2PPT<\/a><\/p>\n<hr>\n<p>\u66f4\u591a\u5185\u5bb9  <\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044005895\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u6d3b\u52a8\u63a8\u8350\u963f\u91cc\u4e91\u57fa\u4e8e Apache Flink \u6784\u5efa\u7684\u4f01\u4e1a\u7ea7\u4ea7\u54c1-\u5b9e\u65f6\u8ba1\u7b97 Flink \u7248\u73b0\u5f00\u542f\u6d3b\u52a8\uff1a<br \/>0 \u5143\u8bd5\u7528 \u5b9e\u65f6\u8ba1\u7b97 Flink \u7248\uff085000CU*\u5c0f\u65f6\uff0c3 \u4e2a\u6708\u5185\uff09<br \/>\u4e86\u89e3\u6d3b\u52a8\u8be6\u60c5\uff1a<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=75lH1tFuzbZ0cwtNn9ijxA%3D%3D.quOLG9c48D0ZoXz6%2FtrA%2FIEMbKvaYyA3AA24pqXVJcNQs2RVrLmuTLc%2BvgZlytTM\" rel=\"noopener noreferrer\">https:\/\/click.aliyun.com\/m\/1000372333\/<\/a> <br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043981412\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000044005861\">https:\/\/segmentfault.com\/a\/1190000044005861<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6458\u8981\uff1a\u672c\u6587\u6574\u7406\u81ea\u5feb\u624b\u6570\u636e\u67b6\u6784\u5de5\u7a0b\u5e08\u5f20\u8292\uff0c\u963f\u91cc\u4e91\u5de5\u7a0b\u5e08\u5218\u5927\u9f99\uff0c\u5728 Flink Forward Asia 2022 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008088","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008088","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008088"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008088\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}