{"id":46856,"date":"2024-01-06T03:04:03","date_gmt":"2023-08-04T00:32:04","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%ae%a9%e6%88%91%e4%bb%ac%e5%9c%a8confluent%e7%9a%84ksql%e4%b8%ad%e7%8e%a9%e8%80%8d%e5%90%a7%ef%bc%81\/"},"modified":"2024-05-04T17:05:30","modified_gmt":"2024-05-04T09:05:30","slug":"%e8%ae%a9%e6%88%91%e4%bb%ac%e5%9c%a8confluent%e7%9a%84ksql%e4%b8%ad%e7%8e%a9%e8%80%8d%e5%90%a7%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%ae%a9%e6%88%91%e4%bb%ac%e5%9c%a8confluent%e7%9a%84ksql%e4%b8%ad%e7%8e%a9%e8%80%8d%e5%90%a7%ef%bc%81\/","title":{"rendered":"\u8ba9\u6211\u4eec\u5728confluent\u7684ksql\u4e2d\u73a9\u800d\u5427\uff01"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u5728Confluent\u76844.x\u7248\u672c\u5f97\u5230\u66f4\u65b0\u4e4b\u540e\uff0cKafka\u7ec8\u4e8e\u4e5f\u8fce\u6765\u4e861.x\u7248\u672c\uff01\u56e0\u6b64\uff0c\u6211\u4eec\u5bf9\u516c\u53f8\u5185\u90e8\u7684\u8bbf\u95ee\u65e5\u5fd7\u6570\u636e\u6d41\u8fdb\u884c\u4e86\u5168\u65b0\u7684Kafka\u73af\u5883\u642d\u5efa\u3002<\/p>\n<p>\u7531\u4e8e\u7ed3\u6784\u5e76\u6ca1\u6709\u5927\u7684\u53d8\u5316\uff0c\u6240\u4ee5\u6211\u5c06\u7701\u7565\u8fd9\u90e8\u5206\u5185\u5bb9\uff0c\u4f46\u662fksql\u76f8\u6bd4\u6700\u521d\u53d1\u5e03\u65f6\u5df2\u7ecf\u6709\u4e86\u5f88\u5927\u7684\u6539\u8fdb\uff0c\u6240\u4ee5\u6211\u60f3\u4ecb\u7ecd\u4e00\u4e0bksql\u3002<\/p>\n<h2>KSQL\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u5173\u4e8e\u5361\u592b\u5361\u7684\u5185\u5bb9\u5728\u4e0a\u9762\u63d0\u5230\u7684\u6587\u7ae0\u4e2d\u5df2\u7ecf\u7b80\u8981\u4ecb\u7ecd\u4e86\uff0c\u56e0\u6b64\u4e0d\u518d\u8d58\u8ff0\u3002<br \/>\n\u5b98\u65b9\u94fe\u63a5\u5728\u8fd9\u91cc\u3002<\/p>\n<h3>Apache Kafka\u7684\u6d41\u5f0fSQL<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u4f7f\u7528Kafka\u548cSQL\u67e5\u8be2\u5b9e\u65f6\u6d41\u5f0f\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<h2>\u7ec4\u6210\u5143\u7d20<\/h2>\n<p>\u4e3a\u4e86\u751f\u6210KSQL\uff0c\u60a8\u9700\u8981\u7406\u89e3\u4e24\u4e2a\u7ec4\u6210\u8981\u7d20\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u539f\u6587\u3002<\/p>\n<p>Here is the original text.<\/p>\n<h3>\u6d41<\/h3>\n<p>\u4eceDataSource\u6765\u6e90\u751f\u6210Stream\u6570\u636e\u3002<br \/>\n\u5177\u4f53\u5305\u62ec\uff1a<br \/>\n&#8211; Kafka\u7684Topic<br \/>\n&#8211; \u901a\u8fc7KSQL\u751f\u6210\u7684Stream<br \/>\n&#8211; \u901a\u8fc7KSQL\u751f\u6210\u7684Table<\/p>\n<p>\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u7c7b\u4f3c\u4e8e\u4ee5\u4e0b\u7684\u6d41\u5f0f\u6570\u636e\u6e90\u4e0d\u65ad\u589e\u52a0\uff1a<br \/>\n&#8211; &#8220;\u7231\u4e3d\u4e1d\u7ed9\u9c8d\u52c3\u53d1\u9001\u4e86100\u7f8e\u5143&#8221;<br \/>\n&#8211; &#8220;\u67e5\u7406\u7ed9\u9c8d\u52c3\u53d1\u9001\u4e8650\u7f8e\u5143&#8221;<\/p>\n<h3>\u684c\u5b50<\/h3>\n<p>\u63d0\u4f9b\u4e86\u6240\u8c13View\u7684\u529f\u80fd\u3002\u53ef\u4ee5\u9009\u62e9\u3001\u5904\u7406\u548c\u805a\u5408\u6d41\u6570\u636e\uff0c\u5e76\u6784\u5efa\u7c7b\u4f3c\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u8868\u3002<\/p>\n<p>\u4ee5\u4e0b\u4e5f\u662fDataSource\uff0c\u4e0eStream\u4e00\u6837\u3002<br \/>\n&#8211; Kafka\u7684Topic<br \/>\n&#8211; \u901a\u8fc7KSQL\u751f\u6210\u7684Stream<br \/>\n&#8211; \u901a\u8fc7KSQL\u751f\u6210\u7684Table<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f8b\u5b50:<br \/>\n&#8211; \u9c8d\u52c3\u7684\u8d26\u6237\u4f59\u989d\u662f150\u7f8e\u5143<br \/>\n&#8211; \u7231\u4e3d\u4e1d\u7684\u8d26\u6237\u4f59\u989d\u662f150\u7f8e\u5143<br \/>\n&#8211; 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\u67e5\u7406\u7684\u8d26\u6237\u91cc\u8fd8\u670950\u7f8e\u5143<\/p>\n<p>\u4f46\u662f\u4e0e\u4e0d\u65ad\u589e\u957f\u7684\u6d41\u5f0f\u6570\u636e\u4e0d\u540c\uff0c\u8fd9\u4e2a\u662f\u6839\u636e\u6d41\u6570\u636e\u6784\u5efa\u8868\u7684\u3002<\/p>\n<h3>\u90a3\u4e48\uff0c\u6709\u4ec0\u4e48\u4e0d\u540c\u5462\uff1f<\/h3>\n<p>\u5982\u679c\u80fd\u591f\u63a5\u53d7\u4e00\u5b9a\u7a0b\u5ea6\u7684\u8bed\u8a00\u4e0d\u51c6\u786e\uff0c\u53ef\u4ee5\u5c06Stream\u89c6\u4e3a\u8fde\u7eed\u5230\u8fbe\u7684\u5904\u7406\u6570\u636e\uff0c\u800cTable\u5219\u662f\u57fa\u4e8e\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u7684\u805a\u5408\u6570\u636e\u3002<\/p>\n<p>&#8211; \u5f15\u304d\u5408\u3044\u306e\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u3001\u30dc\u30d6\u306e\u53e3\u5ea7\u306b\u306f150\u30c9\u30eb\u3042\u308a\u307e\u3059\u3002<br \/>\n&#8211; \u5f15\u304d\u5408\u3044\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u30a2\u30ea\u30b9\u306e\u53e3\u5ea7\u306b\u3082150\u30c9\u30eb\u3042\u308a\u307e\u3059\u3002<br \/>\n&#8211; \u5f15\u304d\u5408\u3044\u306e\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u3001\u30c1\u30e3\u30fc\u30ea\u30fc\u306e\u53e3\u5ea7\u306b\u306f50\u30c9\u30eb\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u901a\u8fc7\u6d41\u5a92\u4f53\uff0c\u53d1\u751f\u4e86\u4ee5\u4e0b\u4e8b\u4ef6\uff1a<br \/>\n&#8211; &#8220;\u7231\u4e3d\u4e1d\u5411\u9c8d\u52c3\u53d1\u9001\u4e86100\u7f8e\u5143&#8221;<br \/>\n&#8211; &#8220;\u67e5\u7406\u5411\u9c8d\u52c3\u53d1\u9001\u4e8650\u7f8e\u5143&#8221;<\/p>\n<p>\u5f53\u8fd9\u4e9b\u6570\u636e\u88ab\u53d1\u9001\u5230\u8868\u4e2d\u65f6\uff0c<br \/>\n-\u9c8d\u52c3\u7684\u8d26\u6237\u4f59\u989d\u4ece150\u7f8e\u5143\u53d8\u4e3a300\u7f8e\u5143<br \/>\n-\u827e\u4e3d\u65af\u7684\u8d26\u6237\u4f59\u989d\u4ece150\u7f8e\u5143\u53d8\u4e3a50\u7f8e\u5143<br \/>\n-\u67e5\u7406\u7684\u8bfe\u7a0b\u4f59\u989d\u4ece50\u7f8e\u5143\u53d8\u4e3a0\u7f8e\u5143<br \/>\n\u8868\u4f1a\u76f8\u5e94\u53d1\u751f\u53d8\u5316\u3002<\/p>\n<h3>\u7565\u6709\u5197\u4f59<\/h3>\n<p>\u901a\u8fc7\u9009\u62e9\u952e\u503c\u6765\u521b\u5efa\u53ea\u4f1a\u79ef\u7d2f\u6d41\u6570\u636e\u7684\u8868\uff0c\u4e0d\u8bba\u600e\u6837\u9009\u62e9\u3002<\/p>\n<p>\u5728\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0c\u7ed3\u5408\u4e24\u79cd\u89d2\u8272\u6765\u8bb2\uff0c<br \/>\n&#8211; Stream \u662f\u7528\u4e8e\u67e5\u8be2\u66f4\u65b0\u7684\u6570\u636e<br \/>\n&#8211; Table \u662f\u6839\u636e\u67e5\u8be2\u8fdb\u884c\u66f4\u65b0\u548c\u5f15\u7528\u7684\u89c6\u56fe<\/p>\n<p>\u65e0\u8bba\u662fStream\uff0c\u8fd8\u662f\u53ef\u4ee5\u7528\u4e8e\u5bf9Streaming\u6570\u636e\u8fdb\u884c\u4e00\u4e9b\u7b80\u5355\u7684\u5904\u7406\uff0c\u5982\u4f55\u5229\u7528\u53d6\u51b3\u4e8e\u60f3\u6cd5\u3002\u6211\u4e4b\u524d\u63d0\u5230\u7684\u53ea\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0c\u6240\u4ee5\u8bf7\u5404\u81ea\u8003\u8651\u5982\u4f55\u4f7f\u7528\u65b9\u4fbf\u3002<\/p>\n<h2>\u6765\u73a9\u5427\uff01<\/h2>\n<p>\u6211\u5efa\u8bae\u90a3\u4e9b\u60f3\u8981\u7b80\u5355\u5feb\u901f\u5f00\u59cb\u7684\u4eba\u76f4\u63a5\u6267\u884cQuickStart\u3002\u8fd9\u6b21\u6211\u5728\u516c\u53f8\u7684\u957f\u671f\u652f\u6301\u7248\u672c\u5316\u7684\u8bbf\u95ee\u65e5\u5fd7\u6570\u636e\u4e0a\u8fdb\u884c\u4e86\u4e00\u4e9b\u5c0f\u8c03\u6574\uff0c\u73b0\u5728\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u3002<\/p>\n<h3>\u5173\u4e8e\u4e3b\u9898\u7684\u5185\u5bb9<\/h3>\n<p>\u6211\u5c06\u8bbf\u95ee\u65e5\u5fd7\u4ee5LTVS\u683c\u5f0f\u5bfc\u51fa\u5230Nginx\uff0c\u5e76\u901a\u8fc7fluentd\u53d1\u9001\u5230Kafka\u3002\u7136\u540e\uff0c\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u4e00\u4e9b\u5904\u7406\uff0c\u5c06\u5e74\u6708\u65e5\u65f6\u5206\u79d2\u5206\u79bb\u4e3a\u4e0d\u540c\u7684\u5217\uff0c\u5e76\u4f7f\u7528KafkaStreams\u53bb\u9664\u4e0d\u9700\u8981\u7684\u6570\u636e\uff0c\u6700\u540e\u4f7f\u7528\u5904\u7406\u8fc7\u7684\u6570\u636e\u3002<\/p>\n<h3>\u6211\u4eec\u6765\u521b\u5efa\u4e00\u4e2aStream\u3002<\/h3>\n<p>\u56e0\u4e3a\u6211\u8ba4\u4e3a\u8fd9\u5f88\u96be\u7406\u89e3\uff0c\u6240\u4ee5\u8ba9\u6211\u4eec\u5feb\u901f\u5730\u521b\u5efa\u4e00\u4e2a\u6d41\u3002<br \/>\n\u4ee5\u4e0b\u662f\u8981\u63d0\u4ea4\u5230ksql\u7684\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code>ksql&gt; CREATE STREAM parsed_json_stream\r\n(\r\n VirtualHost STRING,\r\n Server STRING,\r\n ClientIP STRING,\r\n Status INTEGER,\r\n ResponseTime INTEGER,\r\n Year INTEGER,\r\n Month INTEGER,\r\n Day INTEGER,\r\n Hour INTEGER,\r\n Min INTEGER\r\n) WITH (\r\n KAFKA_TOPIC='parsed_json',\r\n VALUE_FORMAT='JSON'\r\n);\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u5bf9\u8bbf\u95ee\u65e5\u5fd7\u5f88\u719f\u6089\uff0c\u53ea\u9700\u4e00\u773c\u5c31\u53ef\u4ee5\u7406\u89e3\u3002<br \/>\n\u539f\u59cb\u4e3b\u9898\u4e2d\u5305\u542b\u4e86\u5176\u4ed6\u5404\u79cd\u8bbf\u95ee\u65e5\u5fd7\u6570\u636e\uff0c\u4f46\u6211\u4eec\u9650\u5236\u4e86\u6570\u636e\u91cf\uff0c\u53ea\u96c6\u4e2d\u5728\u60f3\u8981\u7edf\u8ba1\u7684\u6570\u636e\u96c6\u4ee5\u53ca\u5e74\u6708\u65e5\u65f6\u5206\u8fd9\u4e9b\u76ee\u6807\u9879\u76ee\u4e0a\u3002<\/p>\n<p>\u5982\u679c\u6210\u529f\u5730\u83b7\u5f97\u4e86\u7c7b\u4f3c\u4e8eSuccess! \u7684\u8f93\u51fa\uff0c\u6211\u4f1a\u8fdb\u884c\u68c0\u67e5\u3002<\/p>\n<pre class=\"post-pre\"><code>ksql&gt; show streams;\r\n\r\n Stream Name                   | Kafka Topic | Format\r\n--------------------------------------------------\r\n PARSED_JSON_STREAM | parsed_json | JSON\r\n--------------------------------------------------\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e00\u70b9\u4e0a\uff0cKafka\u5e76\u4e0d\u4f1a\u81ea\u52a8\u751f\u6210\u4e3b\u9898\u3002<br \/>\n\u6d41\u53ea\u662f\u6d88\u8d39\u6d41\u5411\u4e3b\u9898\u7684\u6570\u636e\u3002<\/p>\n<h3>\u8ba9\u6211\u4eec\u505a\u4e00\u5f20\u684c\u5b50<\/h3>\n<p>\u4f7f\u7528\u4e4b\u524d\u521b\u5efa\u7684Stream\u4f5c\u4e3a\u57fa\u7840\uff0c\u521b\u5efa\u4e00\u5f20Table\u3002<\/p>\n<pre class=\"post-pre\"><code>CREATE TABLE RESP_STATUS_DAILY\r\nWITH (VALUE_FORMAT='JSON')\r\nAS SELECT \r\n VirtualHost, Server, Status, Year, Month, Day, COUNT(*) AS Count\r\nFROM PARSED_JSON_STREAM\r\nGROUP BY VirtualHost, Server, Status, Year, Month, Day\r\nHAVING COUNT(*) &gt; 1;\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u67e5\u770b\u67e5\u8be2\uff0c\u5c31\u4f1a\u660e\u767d\uff0c\u5b83\u4ee5\u670d\u52a1\u5668\u540d\u79f0\u3001\u865a\u62df\u4e3b\u673a\u548c\u72b6\u6001\u7801\u4f5c\u4e3a\u952e\u8fdb\u884c\u6bcf\u65e5\u805a\u5408\u7684\u5f62\u5f0f\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u805a\u5408\u5ba2\u6237\u7aefIP\u7684\u8868\u683c\u3002<br \/>\n\u7531\u4e8e\u7ecf\u5e38\u9047\u5230\u7c7b\u4f3cDDoS\u653b\u51fb\uff0c\u6240\u4ee5\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u5b9e\u65f6\u805a\u5408\u8bbf\u95ee\u6765\u6e90\u7684\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code>CREATE TABLE CLIENT_COUNT\r\nWITH (VALUE_FORMAT='JSON')\r\nAS SELECT \r\n VirtualHost, Server, ClientIP, Year, Month, Day, Hour, Min,  COUNT(*) AS Count\r\nFROM PARSED_JSON_STREAM\r\nGROUP BY VirtualHost, Server, Status, Year, Month, Day, Hour, Min\r\nHAVING COUNT(*) &gt; 1;    \r\n<\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u5728\u786e\u8ba4\u4e00\u4e0bKafka\u7684\u60c5\u51b5\u4e4b\u540e\uff0c\u6211\u8ba4\u4e3a\u751f\u6210\u4e86\u51e0\u4e2aTopic\u3002\u4e00\u4e2a\u662f\u4e0e\u8868\u540d\u76f8\u540c\u7684\u67e5\u8be2\uff0c\u800c\u53e6\u4e00\u4e2a\u662f\u4e00\u4e2a\u5947\u602a\u800c\u53c8\u957f\u7684\u4e1c\u897f\u3002<br 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\/>\n\u5982\u679c\u4e0d\u6ce8\u610f\uff0c\u76f2\u76ee\u5730\u5927\u91cf\u751f\u6210\u8868\u53ef\u80fd\u4f1a\u7acb\u5373\u8017\u5c3d\u78c1\u76d8\u7a7a\u95f4\uff0c\u6240\u4ee5\u8981\u6ce8\u610f\u78c1\u76d8\u6269\u5c55\u3002<\/p>\n<p>\u4e5f\u8bb8\u9700\u8981\u66f4\u52a0\u4ed4\u7ec6\u5730\u8bbe\u8ba1\u4e00\u4e0b\uff0c\u518d\u5236\u4f5c\u4e00\u4e2aTable\u3002\u5982\u679c\u53ea\u662f\u8fd9\u4e2a\u7a0b\u5ea6\u7684\u8bdd\uff0c\u4e0e\u5176\u901a\u8fc7ksql\u52c9\u5f3a\u5b9e\u73b0\uff0c\u4e0d\u5982\u4ece\u53e6\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6d88\u8d39\u6570\u636e\uff0c\u7136\u540e\u5199\u5165RDB\uff0c\u8fd9\u6837\u53ef\u80fd\u66f4\u52a0\u73b0\u5b9e\u3002<\/p>\n<h3>\u8ba9\u6211\u4eec\u5411\u6570\u636e\u5e93\u53d1\u9001\u67e5\u8be2\u3002<\/h3>\n<p>\u6211\u4eec\u6765\u5bf9\u5df2\u7ecf\u5efa\u7acb\u597d\u7684\u8868\u53d1\u51fa\u4e00\u4e2a\u67e5\u8be2\u8bd5\u8bd5\u770b\u3002<\/p>\n<pre class=\"post-pre\"><code>ksql&gt; select VirtualHost, Server, Status, Year, Month, Day, Count from DAILY_RESP_STATUS WHERE Status &gt;= 400 LIMIT 10;\r\nxxx-xxx.domain.net | server03 | 403 | 2018 | 5 | 18 | 4\r\nxxx-xxx.domain.net | server01 | 403 | 2018 | 5 | 18 | 8\r\nxxx-xxx.domain.net | server01 | 401 | 2018 | 5 | 18 | 3\r\nxxx-xxx.domain.net | server02 | 403 | 2018 | 5 | 18 | 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