{"id":464,"date":"2025-01-10T10:54:57","date_gmt":"2025-01-10T02:54:57","guid":{"rendered":"https:\/\/www.zackzzp.top\/?p=464"},"modified":"2025-01-10T16:50:45","modified_gmt":"2025-01-10T08:50:45","slug":"kafka-stream","status":"publish","type":"post","link":"http:\/\/www.zackzzp.top\/index.php\/2025\/01\/10\/kafka-stream\/","title":{"rendered":"Kafka Stream"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Preview<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d41\u8868\u5165\u95e8<\/h2>\n\n\n\n<p>Event \u4e8b\u4ef6<br>\u8bb0\u5f55\u67d0\u4ef6\u4e8b\u53d1\u751f\u7684\u4e8b\u5b9e\uff0c\u7ed3\u6784\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>key:Alice\nvalue:has arrived in room\ntimestamp:Dec.3, 2019 at 9:06 a.m.<\/code><\/pre>\n\n\n\n<p>Stream \u6d41<br>\u8bb0\u5f55event\u7684\u5386\u53f2\uff0c\u662f\u4e00\u4e2a\u6709\u5e8f\u7684event\u5e8f\u5217\uff0c\u6d41\u8868\u793a\u8fc7\u53bb\u548c\u73b0\u5728\uff0c\u65b0\u4e8b\u4ef6\u4f1a\u4e0d\u65ad\u8ffd\u52a0\u5230\u5386\u53f2\u4e2d<br><br>Table\u8868<br>\u8868\u8868\u793a\u67d0\u4e00\u65f6\u523b\u7684\u72b6\u6001\uff0c\u901a\u5e38\u662f\u5f53\u524d\u72b6\u6001\uff0c\u8868\u662f\u6d41\u7684\u4e00\u4e2a\u89c6\u56fe\uff0c\u4f1a\u968f\u7740\u65b0\u4e8b\u4ef6\u7684\u6355\u83b7\u4e0d\u65ad\u66f4\u65b0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d41\u4e0e\u8868\u7684\u533a\u522b<\/h2>\n\n\n\n<p>\u6d41\uff1a\u6570\u636e\u4e0d\u53ef\u53d8\uff0c\u4ec5\u652f\u6301\u63d2\u5165\uff0c\u4e0d\u6539\u53d8\u73b0\u6709\u4e8b\u4ef6\uff0c\u7c7b\u4f3c\u4e8e\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u552f\u4e00\u952e\u7ea6\u675f\u4e14\u4ec5\u652f\u6301\u8ffd\u52a0\u64cd\u4f5c\u7684\u8868\u3002<br>\u8868\uff1a\u6570\u636e\u53ef\u53d8\uff0c\u652f\u6301\u63d2\u5165\uff0c\u66f4\u65b0\u548c\u5220\u9664\uff0c\u7c7b\u4f3c\u4e8e\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u7269\u5316\u89c6\u56fe\uff0c\u4f1a\u968f\u7740\u8f93\u5165\u6d41\u6216\u8868\u7684\u53d8\u5316\u800c\u81ea\u52a8\u66f4\u65b0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d41\u8868\u4e8c\u5143\u6027<\/h2>\n\n\n\n<p>\u6d41\u8f6c\u8868<br>\u901a\u8fc7\u5bf9\u6d41\u805a\u5408\u64cd\u4f5c\uff08count\uff08\uff09\u6216sum\uff08\uff09\uff09\uff0c\u53ef\u4ee5\u5c06\u6d41\u8f6c\u6362\u4e3a\u8868<\/p>\n\n\n\n<p>\u8868\u8f6c\u6d41<br>\u6355\u83b7\u8868\u7684\u53d8\u66f4\uff08\u63d2\u5165\uff0c\u66f4\u65b0\u548c\u5220\u9664\uff09\uff0c\u53ef\u4ee5\u5c06\u8868\u8f6c\u6362\u4e3a\u53d8\u66f4\u6d41\u3002<br><br>\u6d41\u8868\u4e8c\u5143\u6027\u610f\u4e49<br>\u6d41\u548c\u8868\u53ef\u4ee5\u76f8\u4e92\u8f6c\u6362\uff0c\u8fd9\u79cd\u4e8c\u5143\u6027\u662fkafka\u7684\u6838\u5fc3\u7279\u6027\u4e4b\u4e00\u3002<br>\u7c7b\u4f3c\u4e8e\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u91cd\u505a\u65e5\u5fd7\u6216\u4e8c\u8fdb\u5236\u65e5\u5fd7\u3002<br><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u9700\u8981kafka streams<\/h2>\n\n\n\n<p>\u7b80\u5316\u5f00\u53d1\u548c\u90e8\u7f72\uff1a\u4e0d\u9700\u8981\u989d\u5916\u7684\u6d41\u5904\u7406\u96c6\u7fa4\uff0c\u964d\u4f4e\u8fd0\u7ef4\u590d\u6742\u6027<br>\u4f4e\u5ef6\u8fdf\u5b9e\u65f6\u5904\u7406\uff1a\u652f\u6301\u9010\u4e8b\u4ef6\u5904\u7406\uff0c\u6ee1\u8db3\u6beb\u79d2\u7ea7\u522b\u5ef6\u8fdf\u9700\u6c42<br>\u6709\u72b6\u6001\u5904\u7406\uff1a\u5177\u6709\u5185\u7f6e\u7684\u72b6\u6001\u5b58\u50a8\uff0c\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u5728\u672c\u5730\u7ef4\u62a4\u72b6\u6001<br>\u6d41\u4e0e\u8868\u65e0\u7f1d\u96c6\u6210\uff1a\u5177\u6709\u6d41\u8868\u4e8c\u5143\u6027\uff0c\u53ef\u4ee5\u76f8\u4e92\u8f6c\u6362<br>\u5206\u5e03\u5f0f\u5904\u7406\u548c\u5bb9\u9519\u6027\uff1a\u5229\u7528kafka\u7684\u5206\u5e03\u5f0f\u7279\u6027\uff0c\u652f\u6301\u5feb\u901f\u6545\u969c\u8f6c\u79fb\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u5728\u591a\u4e2a\u5b9e\u4f8b\u4e4b\u95f4\u52a8\u6001\u5206\u914d\u5904\u7406\u4efb\u52a1\uff0c\u786e\u4fdd\u9ad8\u53ef\u7528\u548c\u5bb9\u9519<br>\u65e0\u505c\u673a\u6eda\u52a8\u90e8\u7f72\uff1a\u5347\u7ea7\u5e94\u7528\u7a0b\u5e8f\u6216\u6269\u5c55\u5904\u7406\u80fd\u529b\u53ef\u4ee5\u4e0d\u505c\u673a<br>\u9002\u7528\u4e8e\u6838\u5fc3\u4e1a\u52a1\u5e94\u7528\u7a0b\u5e8f\uff1a\u4f20\u7edf\u6d41\u5904\u7406\u6846\u67b6\u66f4\u9002\u5408\u7528\u4e8e\u5206\u6790\u4efb\u52a1\uff0c\u800c\u4e0d\u9002\u5408\u7528\u4e8e\u6784\u5efa\u6838\u5fc3\u4e1a\u52a1\u5e94\u7528\u7a0b\u5e8f\uff0c\u800ckafka streams\u4e13\u6ce8\u4e8e\u6784\u5efa\u6838\u5fc3\u4e1a\u52a1\u5e94\u7528\u7a0b\u5e8f\u548c\u5176\u4ed6\u7cfb\u7edf\uff0c\u589e\u52a0\u4e86\u590d\u6742\u6027<br>kafka Stream\u7684\u96c6\u6210\u4f18\u52bf\uff1a\u4f20\u7edf\u7cfb\u7edf\u9700\u8981\u624b\u52a8\u96c6\u6210\uff0c\u800ckafka\u76f4\u63a5\u6784\u5efa\u5728kafka\u7684\u6838\u5fc3\u62bd\u8c61\u4e4b\u4e0a\uff0c\u53ef\u4ee5\u65e0\u7f1d\u96c6\u6210\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u65e0\u6846\u67b6\u6d41\u5904\u7406<\/h2>\n\n\n\n<p><strong>\u65e0\u6846\u67b6\u8bbe\u8ba1<\/strong>\uff1aKafka Streams \u662f\u4e00\u4e2a\u5d4c\u5165\u5f0f\u5e93\uff0c\u65e0\u9700\u989d\u5916\u7684\u6d41\u5904\u7406\u96c6\u7fa4\u3002<\/p>\n\n\n\n<p><strong>\u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u81ea\u52a8\u5206\u914d\u548c\u91cd\u65b0\u5e73\u8861\u5904\u7406\u8d1f\u8f7d\u3002<\/p>\n\n\n\n<p><strong>\u672c\u5730\u72b6\u6001\u7ba1\u7406<\/strong>\uff1a\u652f\u6301\u5728\u672c\u5730\u7ef4\u62a4\u72b6\u6001\uff0c\u5e76\u5728\u9700\u8981\u65f6\u91cd\u65b0\u521b\u5efa\u3002<\/p>\n\n\n\n<p><strong>\u6545\u969c\u6062\u590d<\/strong>\uff1a\u5229\u7528 Kafka \u7684\u5bb9\u9519\u673a\u5236\uff0c\u786e\u4fdd\u5feb\u901f\u6062\u590d\u3002<\/p>\n\n\n\n<p><strong>\u65e0\u505c\u673a\u90e8\u7f72<\/strong>\uff1a\u652f\u6301\u6eda\u52a8\u5347\u7ea7\u548c\u6269\u5c55\uff0c\u786e\u4fdd\u4e1a\u52a1\u8fde\u7eed\u6027\u3002<\/p>\n\n\n\n<p><strong>\u4e0e\u5bb9\u5668\u5316\u6280\u672f\u96c6\u6210<\/strong>\uff1a\u53ef\u4ee5\u4e0e Kubernetes\u3001Mesos \u7b49\u73b0\u4ee3\u5bb9\u5668\u7f16\u6392\u6846\u67b6\u65e0\u7f1d\u96c6\u6210\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d41\u8868\u96c6\u6210\u7b80\u5316\u5904\u7406\u5e94\u7528\u7a0b\u5e8f<\/h2>\n\n\n\n<p>\u6d41\u8868\u4ecb\u7ecd\u53ef\u4ee5\u53c2\u8003\u7b2c\u4e00\u8282<br><br>\u6d41\u8868\u64cd\u4f5c<br><br>\u8fde\u63a5\u548c\u805a\u5408\uff0c\u7ed3\u679c\u4e5f\u662f\u8868<br>\u7a97\u53e3\u5316\u64cd\u4f5c<br><br><br>\u72b6\u6001\u5316\u64cd\u4f5c<br>\u901a\u8fc7\u672c\u5730\u5d4c\u5165\u5f0f\u952e\u503c\u5b58\u50a8\uff08RocksDB\uff09\u6765\u7ef4\u62a4\u8868\u7684\u72b6\u6001<br>\u8fd9\u79cd\u8bbe\u8ba1\u4f7f\u5f97\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u76f4\u63a5\u67e5\u8be2\u672c\u5730\u8ba1\u7b97\u7684\u72b6\u6001\uff0c\u4ece\u800c\u5b9e\u73b0\u72b6\u6001\u5316\u670d\u52a1<br>\u672c\u5730\u5316\u670d\u52a1\u4f18\u52bf<br>\u5bf9\u4e8e\u9891\u7e41\u8bbf\u95ee\u5927\u91cf\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u672c\u5730\u72b6\u6001\u5b58\u50a8\u53ef\u4ee5\u63d0\u4f9b\u6781\u9ad8\u7684\u6027\u80fd<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><br>\u7a97\u53e3\u5316\u64cd\u4f5c<\/h3>\n\n\n\n<p>\u7a97\u53e3\u5316\u64cd\u4f5c\u662f\u4e00\u4e2a\u5b50\u96c6\u6982\u5ff5\uff0c\u7a97\u53e3\u662f\u6570\u636e\u6d41\u7684\u4e00\u4e2a\u5b50\u96c6<br><strong>1. \u7a97\u53e3\u5316\u64cd\u4f5c\u7684\u6838\u5fc3\u6982\u5ff5<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1.1 \u7a97\u53e3\uff08Window\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a\u7a97\u53e3\u662f\u6570\u636e\u6d41\u7684\u4e00\u4e2a\u6709\u9650\u5b50\u96c6\uff0c\u901a\u5e38\u57fa\u4e8e\u65f6\u95f4\u6216\u6570\u91cf\u8fdb\u884c\u5212\u5206\u3002<\/li>\n\n\n\n<li><strong>\u7c7b\u578b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u65f6\u95f4\u7a97\u53e3\uff08Time Window\uff09<\/strong>\uff1a\u57fa\u4e8e\u65f6\u95f4\u5212\u5206\u7a97\u53e3\uff0c\u5982\u6bcf5\u5206\u949f\u3001\u6bcf\u5c0f\u65f6\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u6570\u7a97\u53e3\uff08Count Window\uff09<\/strong>\uff1a\u57fa\u4e8e\u4e8b\u4ef6\u6570\u91cf\u5212\u5206\u7a97\u53e3\uff0c\u5982\u6bcf100\u4e2a\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li><strong>\u4f1a\u8bdd\u7a97\u53e3\uff08Session Window\uff09<\/strong>\uff1a\u57fa\u4e8e\u4e8b\u4ef6\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694\u5212\u5206\u7a97\u53e3\uff0c\u9002\u7528\u4e8e\u7528\u6237\u884c\u4e3a\u5206\u6790\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1.2 \u7a97\u53e3\u5316\u64cd\u4f5c\u7684\u4f5c\u7528<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u805a\u5408\u8ba1\u7b97<\/strong>\uff1a\u5bf9\u7a97\u53e3\u5185\u7684\u6570\u636e\u8fdb\u884c\u805a\u5408\u64cd\u4f5c\uff0c\u5982\u6c42\u548c\u3001\u5e73\u5747\u503c\u3001\u6700\u5927\u503c\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u7edf\u8ba1\u5206\u6790<\/strong>\uff1a\u8ba1\u7b97\u7a97\u53e3\u5185\u7684\u7edf\u8ba1\u6307\u6807\uff0c\u5982\u70b9\u51fb\u7387\u3001\u8f6c\u5316\u7387\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u4e8b\u4ef6\u5904\u7406<\/strong>\uff1a\u5bf9\u7a97\u53e3\u5185\u7684\u4e8b\u4ef6\u8fdb\u884c\u7279\u5b9a\u5904\u7406\uff0c\u5982\u68c0\u6d4b\u5f02\u5e38\u3001\u89e6\u53d1\u544a\u8b66\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u7a97\u53e3\u5316\u64cd\u4f5c\u7684\u6311\u6218<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2.1 \u4e71\u5e8f\u6570\u636e\uff08Out-of-Order Data\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u95ee\u9898<\/strong>\uff1a\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u4e8b\u4ef6\u53ef\u80fd\u56e0\u4e3a\u7f51\u7edc\u5ef6\u8fdf\u6216\u5176\u4ed6\u539f\u56e0\u4e71\u5e8f\u5230\u8fbe\u3002<\/li>\n\n\n\n<li><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u4ef6\u65f6\u95f4\uff08Event Time\uff09<\/strong>\uff1a\u4f7f\u7528\u4e8b\u4ef6\u7684\u5b9e\u9645\u53d1\u751f\u65f6\u95f4\uff08\u800c\u975e\u5230\u8fbe\u65f6\u95f4\uff09\u8fdb\u884c\u7a97\u53e3\u5212\u5206\u3002<\/li>\n\n\n\n<li><strong>\u6c34\u4f4d\u7ebf\uff08Watermark\uff09<\/strong>\uff1a\u901a\u8fc7\u6c34\u4f4d\u7ebf\u673a\u5236\u5904\u7406\u4e71\u5e8f\u6570\u636e\uff0c\u786e\u5b9a\u7a97\u53e3\u7684\u5173\u95ed\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2.2 \u7a97\u53e3\u7684\u5b8c\u6574\u6027<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u95ee\u9898<\/strong>\uff1a\u5982\u4f55\u786e\u5b9a\u4e00\u4e2a\u7a97\u53e3\u5185\u7684\u6240\u6709\u4e8b\u4ef6\u90fd\u5df2\u5230\u8fbe\uff1f<\/li>\n\n\n\n<li><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u5ef6\u8fdf\u5904\u7406<\/strong>\uff1a\u5141\u8bb8\u7a97\u53e3\u5ef6\u8fdf\u5173\u95ed\uff0c\u7b49\u5f85\u53ef\u80fd\u8fdf\u5230\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u589e\u91cf\u66f4\u65b0<\/strong>\uff1a\u7a97\u53e3\u5185\u7684\u8ba1\u7b97\u7ed3\u679c\u53ef\u4ee5\u968f\u7740\u65b0\u6570\u636e\u7684\u5230\u8fbe\u4e0d\u65ad\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Kafka Streams \u4e2d\u7684\u7a97\u53e3\u5316\u64cd\u4f5c<\/strong><\/h3>\n\n\n\n<p>Kafka Streams \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7a97\u53e3\u5316\u64cd\u4f5c\u652f\u6301\uff0c\u80fd\u591f\u5904\u7406\u4e71\u5e8f\u6570\u636e\u5e76\u5b9e\u73b0\u589e\u91cf\u66f4\u65b0\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3.1 \u65f6\u95f4\u7a97\u53e3<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6eda\u52a8\u7a97\u53e3\uff08Tumbling Window\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7a97\u53e3\u4e4b\u95f4\u6ca1\u6709\u91cd\u53e0\uff0c\u6bcf\u4e2a\u4e8b\u4ef6\u53ea\u5c5e\u4e8e\u4e00\u4e2a\u7a97\u53e3\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u6bcf5\u5206\u949f\u8ba1\u7b97\u4e00\u6b21\u9500\u552e\u989d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6ed1\u52a8\u7a97\u53e3\uff08Sliding Window\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7a97\u53e3\u4e4b\u95f4\u6709\u91cd\u53e0\uff0c\u4e00\u4e2a\u4e8b\u4ef6\u53ef\u80fd\u5c5e\u4e8e\u591a\u4e2a\u7a97\u53e3\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u6bcf1\u5206\u949f\u8ba1\u7b97\u8fc7\u53bb5\u5206\u949f\u7684\u9500\u552e\u989d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f1a\u8bdd\u7a97\u53e3\uff08Session Window\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u57fa\u4e8e\u4e8b\u4ef6\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694\u5212\u5206\u7a97\u53e3\uff0c\u9002\u7528\u4e8e\u7528\u6237\u884c\u4e3a\u5206\u6790\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u7528\u6237\u5728\u4e00\u6b21\u4f1a\u8bdd\u5185\u7684\u70b9\u51fb\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3.2 \u7a97\u53e3\u5316\u64cd\u4f5c\u7684\u5b9e\u73b0<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u589e\u91cf\u805a\u5408<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u652f\u6301\u589e\u91cf\u805a\u5408\uff0c\u7a97\u53e3\u5185\u7684\u8ba1\u7b97\u7ed3\u679c\u4f1a\u968f\u7740\u65b0\u6570\u636e\u7684\u5230\u8fbe\u4e0d\u65ad\u66f4\u65b0\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u8ba1\u7b97\u6bcf5\u5206\u949f\u7684\u9500\u552e\u989d\uff0c\u7ed3\u679c\u4f1a\u968f\u7740\u65b0\u9500\u552e\u6570\u636e\u7684\u5230\u8fbe\u4e0d\u65ad\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e71\u5e8f\u6570\u636e\u5904\u7406<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u4f7f\u7528\u4e8b\u4ef6\u65f6\u95f4\u548c\u6c34\u4f4d\u7ebf\u673a\u5236\u5904\u7406\u4e71\u5e8f\u6570\u636e\uff0c\u786e\u4fdd\u7a97\u53e3\u8ba1\u7b97\u7684\u51c6\u786e\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u7a97\u53e3\u5316\u64cd\u4f5c\u7684\u5e94\u7528\u573a\u666f<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4.1 \u5b9e\u65f6\u76d1\u63a7<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u573a\u666f<\/strong>\uff1a\u76d1\u63a7\u7cfb\u7edf\u7684\u5b9e\u65f6\u6307\u6807\uff0c\u5982CPU\u4f7f\u7528\u7387\u3001\u7f51\u7edc\u6d41\u91cf\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u64cd\u4f5c<\/strong>\uff1a\u6bcf1\u5206\u949f\u8ba1\u7b97\u8fc7\u53bb5\u5206\u949f\u7684\u5e73\u5747\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4.2 \u7528\u6237\u884c\u4e3a\u5206\u6790<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u573a\u666f<\/strong>\uff1a\u5206\u6790\u7528\u6237\u5728\u7f51\u7ad9\u6216\u5e94\u7528\u4e2d\u7684\u884c\u4e3a\u3002<\/li>\n\n\n\n<li><strong>\u64cd\u4f5c<\/strong>\uff1a\u8ba1\u7b97\u7528\u6237\u5728\u4e00\u6b21\u4f1a\u8bdd\u5185\u7684\u70b9\u51fb\u6b21\u6570\u3001\u505c\u7559\u65f6\u95f4\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4.3 \u5b9e\u65f6\u98ce\u63a7<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u573a\u666f<\/strong>\uff1a\u68c0\u6d4b\u5f02\u5e38\u4ea4\u6613\u6216\u884c\u4e3a\u3002<\/li>\n\n\n\n<li><strong>\u64cd\u4f5c<\/strong>\uff1a\u6bcf10\u5206\u949f\u8ba1\u7b97\u8fc7\u53bb1\u5c0f\u65f6\u5185\u7684\u4ea4\u6613\u6b21\u6570\uff0c\u68c0\u6d4b\u5f02\u5e38\u4ea4\u6613\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. \u793a\u4f8b\uff1aKafka Streams \u4e2d\u7684\u7a97\u53e3\u5316\u64cd\u4f5c<\/strong><\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684 Kafka Streams \u793a\u4f8b\uff0c\u8ba1\u7b97\u6bcf5\u5206\u949f\u7684\u9500\u552e\u989d\uff1a<\/p>\n\n\n\n<p>java<\/p>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import org.apache.kafka.common.serialization.Serdes;\nimport org.apache.kafka.streams.KafkaStreams;\nimport org.apache.kafka.streams.StreamsBuilder;\nimport org.apache.kafka.streams.kstream.*;\n\nimport java.time.Duration;\nimport java.util.Properties;\n\npublic class WindowedSalesApp {\n    public static void main(String[] args) {\n        \/\/ \u914d\u7f6e Kafka Streams\n        Properties props = new Properties();\n        props.put(\"application.id\", \"windowed-sales-app\");\n        props.put(\"bootstrap.servers\", \"localhost:9092\");\n        props.put(\"default.key.serde\", Serdes.String().getClass().getName());\n        props.put(\"default.value.serde\", Serdes.String().getClass().getName());\n\n        \/\/ \u5b9a\u4e49\u6d41\u5904\u7406\u62d3\u6251\n        StreamsBuilder builder = new StreamsBuilder();\n        KStream&lt;String, String&gt; salesStream = builder.stream(\"sales-topic\");\n\n        \/\/ \u5b9a\u4e49\u65f6\u95f4\u7a97\u53e3\uff08\u6bcf5\u5206\u949f\uff09\n        TimeWindows window = TimeWindows.of(Duration.ofMinutes(5));\n\n        \/\/ \u8ba1\u7b97\u6bcf5\u5206\u949f\u7684\u9500\u552e\u989d\n        KTable&lt;Windowed&lt;String&gt;, Long&gt; salesPerWindow = salesStream\n            .groupByKey()\n            .windowedBy(window)\n            .count();\n\n        \/\/ \u8f93\u51fa\u7ed3\u679c\u5230 Kafka \u4e3b\u9898\n        salesPerWindow.toStream()\n            .to(\"sales-per-window-topic\", Produced.with(WindowedSerdes.timeWindowedSerdeFrom(String.class), Serdes.Long()));\n\n        \/\/ \u542f\u52a8 Kafka Streams \u5e94\u7528\u7a0b\u5e8f\n        KafkaStreams streams = new KafkaStreams(builder.build(), props);\n        streams.start();\n\n        \/\/ \u6dfb\u52a0\u5173\u95ed\u94a9\u5b50\n        Runtime.getRuntime().addShutdownHook(new Thread(streams::close));\n    }\n}<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p><strong>\u7a97\u53e3\u5316\u64cd\u4f5c<\/strong>\u662f\u6d41\u5904\u7406\u4e2d\u7684\u6838\u5fc3\u529f\u80fd\uff0c\u7528\u4e8e\u5bf9\u65e0\u754c\u6570\u636e\u6d41\u8fdb\u884c\u5206\u6bb5\u5904\u7406\u3002Kafka Streams \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7a97\u53e3\u5316\u64cd\u4f5c\u652f\u6301\uff0c\u80fd\u591f\u5904\u7406\u4e71\u5e8f\u6570\u636e\u5e76\u5b9e\u73b0\u589e\u91cf\u66f4\u65b0\u3002\u901a\u8fc7\u7a97\u53e3\u5316\u64cd\u4f5c\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5b9e\u65f6\u76d1\u63a7\u3001\u7528\u6237\u884c\u4e3a\u5206\u6790\u3001\u5b9e\u65f6\u98ce\u63a7\u7b49\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5173\u952e\u70b9\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p><strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a\u5b9e\u65f6\u76d1\u63a7\u3001\u7528\u6237\u884c\u4e3a\u5206\u6790\u3001\u5b9e\u65f6\u98ce\u63a7\u7b49\u3002<br><\/p>\n\n\n\n<p><strong>\u7a97\u53e3\u7c7b\u578b<\/strong>\uff1a\u65f6\u95f4\u7a97\u53e3\uff08\u6eda\u52a8\u7a97\u53e3\u3001\u6ed1\u52a8\u7a97\u53e3\uff09\u3001\u8ba1\u6570\u7a97\u53e3\u3001\u4f1a\u8bdd\u7a97\u53e3\u3002<\/p>\n\n\n\n<p><strong>\u4e71\u5e8f\u6570\u636e\u5904\u7406<\/strong>\uff1a\u4f7f\u7528\u4e8b\u4ef6\u65f6\u95f4\u548c\u6c34\u4f4d\u7ebf\u673a\u5236\u3002<\/p>\n\n\n\n<p><strong>\u589e\u91cf\u805a\u5408<\/strong>\uff1a\u7a97\u53e3\u5185\u7684\u8ba1\u7b97\u7ed3\u679c\u4f1a\u968f\u7740\u65b0\u6570\u636e\u7684\u5230\u8fbe\u4e0d\u65ad\u66f4\u65b0\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b80\u5316\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u6784\u5efa\u4e0e\u8fd0\u7ef4<\/h2>\n\n\n\n<p><br>1<strong>. \u4f20\u7edf\u6d41\u5904\u7406\u67b6\u6784\u7684\u590d\u6742\u6027<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f20\u7edf\u67b6\u6784\u7684\u590d\u6742\u6027<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5178\u578b\u7684\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u67b6\u6784\u901a\u5e38\u5305\u542b\u8bb8\u591a\u590d\u6742\u7684\u7ec4\u4ef6\uff1a\n<ul class=\"wp-block-list\">\n<li>Kafka \u672c\u8eab\u3002<\/li>\n\n\n\n<li>\u6d41\u5904\u7406\u96c6\u7fa4\uff08\u5982 Storm \u6216 Spark\uff09\uff0c\u901a\u5e38\u5305\u62ec\u4e3b\u8fdb\u7a0b\u548c\u8282\u70b9\u5b88\u62a4\u8fdb\u7a0b\u3002<\/li>\n\n\n\n<li>\u5b9e\u9645\u7684\u6d41\u5904\u7406\u4efb\u52a1\u3002<\/li>\n\n\n\n<li>\u7528\u4e8e\u67e5\u627e\u548c\u805a\u5408\u7684\u8f85\u52a9\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n<li>\u7528\u4e8e\u5b58\u50a8\u6d41\u5904\u7406\u7ed3\u679c\u5e76\u4f9b\u5e94\u7528\u7a0b\u5e8f\u67e5\u8be2\u7684\u8f93\u51fa\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n<li>Hadoop \u96c6\u7fa4\uff08\u672c\u8eab\u5305\u542b\u8bb8\u591a\u7ec4\u4ef6\uff09\uff0c\u7528\u4e8e\u6570\u636e\u91cd\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u5904\u7406\u7528\u6237\u8bf7\u6c42\u7684\u8bf7\u6c42\/\u54cd\u5e94\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8fd9\u79cd\u67b6\u6784\u4e0d\u4ec5\u590d\u6742\uff0c\u800c\u4e14\u96be\u4ee5\u8fd0\u7ef4\u548c\u76d1\u63a7\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Kafka Streams \u7684\u7b80\u5316\u8bbe\u8ba1<\/strong><\/h3>\n\n\n\n<p>Kafka Streams \u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u7b80\u5316\u4e86\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u6784\u5efa\u548c\u8fd0\u7ef4\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2.1 \u65e0\u5916\u90e8\u96c6\u7fa4<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u662f\u4e00\u4e2a\u5d4c\u5165\u5f0f\u5e93\uff0c\u65e0\u9700\u989d\u5916\u7684\u6d41\u5904\u7406\u96c6\u7fa4\u3002<\/li>\n\n\n\n<li>\u5f00\u53d1\u8005\u53ea\u9700\u5c06 Kafka Streams \u5e93\u5d4c\u5165\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5373\u53ef\u5229\u7528 Kafka \u7684\u5206\u5e03\u5f0f\u548c\u5bb9\u9519\u7279\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2.2 \u6d41\u4e0e\u8868\u7684\u96c6\u6210<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5c06\u6d41\uff08stream\uff09\u548c\u8868\uff08table\uff09\u7684\u6982\u5ff5\u96c6\u6210\u5230\u4e00\u4e2a\u7edf\u4e00\u7684\u6846\u67b6\u4e2d\uff0c\u652f\u6301\u6d41\u8868\u4e8c\u5143\u6027\u3002<\/li>\n\n\n\n<li>\u8fd9\u79cd\u8bbe\u8ba1\u7b80\u5316\u4e86\u590d\u6742\u7684\u6570\u636e\u5904\u7406\u903b\u8f91\uff0c\u5982\u805a\u5408\u3001\u8fde\u63a5\u548c\u7a97\u53e3\u5316\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2.3 \u4e0e Kafka \u751f\u6001\u7cfb\u7edf\u7684\u65e0\u7f1d\u96c6\u6210<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u76f4\u63a5\u6784\u5efa\u5728 Kafka \u7684\u6838\u5fc3\u62bd\u8c61\u4e4b\u4e0a\uff0c\u4e0e Kafka \u751f\u6001\u7cfb\u7edf\u65e0\u7f1d\u96c6\u6210\u3002<\/li>\n\n\n\n<li>\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u662f Kafka \u4e3b\u9898\uff0c\u6570\u636e\u6a21\u578b\u548c\u5206\u533a\u6a21\u578b\u4e0e Kafka \u4e00\u81f4\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Kafka Streams \u7684\u4f18\u52bf<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b80\u6d01\u7684\u4ee3\u7801<\/strong>\uff1aKafka Streams \u7684\u4ee3\u7801\u5e93\u975e\u5e38\u5c0f\uff08\u4e0d\u5230 9000 \u884c\u4ee3\u7801\uff09\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u6269\u5c55\u3002<\/li>\n\n\n\n<li><strong>\u7edf\u4e00\u7684\u76d1\u63a7<\/strong>\uff1aKafka Streams \u7684\u6307\u6807\u4e0e Kafka \u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u7edf\u4e00\uff0c\u7b80\u5316\u4e86\u76d1\u63a7\u548c\u8fd0\u7ef4\u3002<\/li>\n\n\n\n<li><strong>\u4e8b\u4ef6\u65f6\u95f4\u5904\u7406<\/strong>\uff1aKafka Streams \u652f\u6301\u4e8b\u4ef6\u65f6\u95f4\uff08event-time\uff09\u5904\u7406\uff0c\u80fd\u591f\u5904\u7406\u4e71\u5e8f\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u7075\u6d3b\u7684\u91cd\u5904\u7406<\/strong>\uff1a\u5982\u679c\u9700\u8981\u91cd\u65b0\u5904\u7406\u6570\u636e\uff0c\u53ea\u9700\u56de\u9000 Kafka \u504f\u79fb\u91cf\u5373\u53ef\uff0c\u65e0\u9700\u4f9d\u8d56\u5176\u4ed6\u7cfb\u7edf\uff08\u5982 Hadoop\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Kafka Streams \u7684\u5e94\u7528\u573a\u666f<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9e\u65f6\u6570\u636e\u5904\u7406<\/strong>\uff1a\u5982\u70b9\u51fb\u6d41\u5206\u6790\u3001\u7528\u6237\u884c\u4e3a\u5206\u6790\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u65f6\u805a\u5408<\/strong>\uff1a\u5982\u8ba1\u7b97\u6bcf\u5206\u949f\u7684\u70b9\u51fb\u91cf\u3001\u6bcf\u5c0f\u65f6\u7684\u4ea4\u6613\u603b\u989d\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u65f6\u8f6c\u6362<\/strong>\uff1a\u5982\u6570\u636e\u683c\u5f0f\u8f6c\u6362\u3001\u5b57\u6bb5\u63d0\u53d6\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u65f6\u8fde\u63a5<\/strong>\uff1a\u5982\u6d41-\u6d41\u8fde\u63a5\u3001\u6d41-\u8868\u8fde\u63a5\u3002<\/li>\n\n\n\n<li><strong>\u590d\u6742\u4e8b\u4ef6\u5904\u7406\uff08CEP\uff09<\/strong>\uff1a\u5982\u5f02\u5e38\u68c0\u6d4b\u3001\u6b3a\u8bc8\u68c0\u6d4b\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p>Kafka Streams \u901a\u8fc7<strong>\u65e0\u5916\u90e8\u96c6\u7fa4\u8bbe\u8ba1<\/strong>\u3001<strong>\u6d41\u4e0e\u8868\u7684\u96c6\u6210<\/strong>\u548c<strong>\u4e0e Kafka \u751f\u6001\u7cfb\u7edf\u7684\u65e0\u7f1d\u96c6\u6210<\/strong>\uff0c\u5927\u5e45\u7b80\u5316\u4e86\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u6784\u5efa\u548c\u8fd0\u7ef4\u3002\u5b83\u4f7f\u5f97\u6d41\u5904\u7406\u53d8\u5f97\u66f4\u52a0\u6613\u4e8e\u4f7f\u7528\u548c\u8fd0\u7ef4\uff0c\u9002\u7528\u4e8e\u5b9e\u65f6\u6570\u636e\u5904\u7406\u3001\u5b9e\u65f6\u805a\u5408\u3001\u5b9e\u65f6\u8f6c\u6362\u3001\u5b9e\u65f6\u8fde\u63a5\u548c\u590d\u6742\u4e8b\u4ef6\u5904\u7406\u7b49\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5173\u952e\u70b9\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p><strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a\u5b9e\u65f6\u6570\u636e\u5904\u7406\u3001\u5b9e\u65f6\u805a\u5408\u3001\u5b9e\u65f6\u8f6c\u6362\u3001\u5b9e\u65f6\u8fde\u63a5\u3001\u590d\u6742\u4e8b\u4ef6\u5904\u7406\u3002<\/p>\n\n\n\n<p><strong>\u4f20\u7edf\u67b6\u6784\u7684\u590d\u6742\u6027<\/strong>\uff1a\u4f20\u7edf\u6d41\u5904\u7406\u67b6\u6784\u5305\u542b\u8bb8\u591a\u590d\u6742\u7ec4\u4ef6\uff0c\u96be\u4ee5\u8fd0\u7ef4\u548c\u76d1\u63a7\u3002<\/p>\n\n\n\n<p><strong>Kafka Streams \u7684\u7b80\u5316\u8bbe\u8ba1<\/strong>\uff1a<\/p>\n\n\n\n<p>\u65e0\u5916\u90e8\u96c6\u7fa4\uff0c\u5d4c\u5165\u5f0f\u5e93\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<p>\u6d41\u4e0e\u8868\u7684\u96c6\u6210\uff0c\u652f\u6301\u6d41\u8868\u4e8c\u5143\u6027\u3002<\/p>\n\n\n\n<p>\u4e0e Kafka \u751f\u6001\u7cfb\u7edf\u7684\u65e0\u7f1d\u96c6\u6210\u3002<\/p>\n\n\n\n<p><strong>Kafka Streams \u7684\u4f18\u52bf<\/strong>\uff1a<\/p>\n\n\n\n<p>\u7b80\u6d01\u7684\u4ee3\u7801\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u6269\u5c55\u3002<\/p>\n\n\n\n<p>\u7edf\u4e00\u7684\u76d1\u63a7\uff0c\u7b80\u5316\u8fd0\u7ef4\u3002<\/p>\n\n\n\n<p>\u4e8b\u4ef6\u65f6\u95f4\u5904\u7406\uff0c\u652f\u6301\u4e71\u5e8f\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u7075\u6d3b\u7684\u91cd\u5904\u7406\uff0c\u65e0\u9700\u4f9d\u8d56\u5176\u4ed6\u7cfb\u7edf\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Concepts<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Kafka 101<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u8c01\u662f\u8c01<\/h3>\n\n\n\n<p><br>\u751f\u4ea7\u8005 producer<br>\u6d88\u8d39\u8005 consumer<br>\u4ee3\u7406\u4eba broker<br><br>\u751f\u4ea7\u8005\u5411Kafka\u4ee3\u7406\u53d1\u5e03\u6570\u636e\uff0c\u6d88\u8d39\u8005\u4eceKafka\u4ee3\u7406\u8bfb\u53d6\u53d1\u5e03\u7684\u6570\u636e\u3002\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u5b8c\u5168\u89e3\u8026\uff0c\u90fd\u5728Kafka\u96c6\u7fa4\u5916\u56f4\u7684Kafka\u4ee3\u7406\u4e4b\u5916\u8fd0\u884c\u3002Kafka\u96c6\u7fa4\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u4ee3\u7406\u7ec4\u6210\u3002\u4f7f\u7528Kafka Streams API\u7684\u5e94\u7528\u7a0b\u5e8f\u540c\u65f6\u5145\u5f53\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u3002<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e<\/h3>\n\n\n\n<p>\u6570\u636e\u90fd\u5b58\u50a8\u5728topic\u4e2d\uff0c\u6bcf\u4e2atopic\u6709\u4e0d\u540c\u7684partition\uff08\u5206\u533a\uff09<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e76\u884c\u6027<\/h3>\n\n\n\n<p>Kafka\u4e3b\u9898\u7684\u5206\u533a\uff0c\u7279\u522b\u662f\u7ed9\u5b9a\u4e3b\u9898\u7684\u5206\u533a\u6570\u91cf\uff0c\u4e5f\u662f\u51b3\u5b9aKafka\u8bfb\u5199\u6570\u636e\u5e76\u884c\u6027\u7684\u4e3b\u8981\u56e0\u7d20\u3002\u7531\u4e8e\u4e0eKafka\u7d27\u5bc6\u96c6\u6210\uff0c\u4f7f\u7528Kafka Streams API\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u5e76\u884c\u6027\u4e3b\u8981\u53d6\u51b3\u4e8eKafka\u7684\u5e76\u884c\u6027\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Stream<\/h2>\n\n\n\n<p>\u6d41\u662fKafka Streams\u63d0\u4f9b\u7684\u6700\u91cd\u8981\u7684\u62bd\u8c61\uff1a\u5b83\u8868\u793a\u4e00\u4e2a<strong>\u65e0\u754c\u7684\u3001\u4e0d\u65ad\u66f4\u65b0<\/strong>\u7684\u6570\u636e\u96c6\uff0c\u5176\u4e2d\u65e0\u754c\u610f\u5473\u7740\u201c\u672a\u77e5\u6216\u65e0\u9650\u5927\u5c0f\u201d\u3002\u5c31\u50cfKafka\u4e2d\u7684\u4e3b\u9898\u4e00\u6837\uff0cKafka Streams API\u4e2d\u7684<strong>\u6d41\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u6d41\u5206\u533a\u7ec4\u6210<\/strong>\u3002<br>\u6d41\u5206\u533a\u662f\u4e00\u4e2a\u6709\u5e8f\u3001\u53ef\u91cd\u653e\u548c\u5bb9\u9519\u7684\u4e0d\u53ef\u53d8\u6570\u636e\u8bb0\u5f55\u5e8f\u5217\uff0c\u5176\u4e2d<strong>\u6570\u636e\u8bb0\u5f55\u88ab\u5b9a\u4e49\u4e3a\u952e\u503c\u5bf9<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Stream Processing Application<\/h2>\n\n\n\n<p>\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u5728\u5355\u72ec\u7684jvm\u5b9e\u4f8b\u4e2d\uff0c\u800c\u4e0d\u662f\u5728\u96c6\u7fa4\u4e2d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Stream Topology \u548c Stream Processor<\/h2>\n\n\n\n<p>\u6d41\u62d3\u6251\u548c\u6d41\u5904\u7406\u5668\uff0c\u6d41\u5904\u7406\u5668\u4f5c\u4e3a\u6d41\u62d3\u6251\u7684\u4e00\u4e2a\u8282\u70b9\uff0c\u4f5c\u4e3a\u5904\u7406\u6570\u636e\u7684\u4e00\u4e2a\u6b65\u9aa4<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Stateful Stream Processing<\/h2>\n\n\n\n<p>\u72b6\u6001\u6d41\u5904\u7406<br>\u4e00\u4e9b\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u4e0d\u9700\u8981\u72b6\u6001\u2014\u2014\u5b83\u4eec\u662f\u65e0\u72b6\u6001\u7684\u2014\u2014\u8fd9\u610f\u5473\u7740\u6d88\u606f\u7684\u5904\u7406\u72ec\u7acb\u4e8e\u5176\u4ed6\u6d88\u606f\u7684\u5904\u7406\u3002\u4f8b\u5982\uff0c\u4e00\u6b21\u53ea\u9700\u8981\u8f6c\u6362\u4e00\u6761\u6d88\u606f\uff0c\u6216\u8005\u6839\u636e\u67d0\u4e9b\u6761\u4ef6\u8fc7\u6ee4\u6389\u6d88\u606f\u3002<br>\u7136\u800c\uff0c\u5728\u5b9e\u8df5\u4e2d\uff0c\u5927\u591a\u6570\u5e94\u7528\u7a0b\u5e8f\u90fd\u9700\u8981\u72b6\u6001\uff08\u5b83\u4eec\u662f\u6709\u72b6\u6001\u7684\uff09\u624d\u80fd\u6b63\u5e38\u5de5\u4f5c\uff0c\u5e76\u4e14\u5fc5\u987b\u4ee5\u5bb9\u9519\u65b9\u5f0f\u7ba1\u7406\u8fd9\u79cd\u72b6\u6001\u3002\u4f8b\u5982\uff0c\u6bcf\u5f53\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u8fde\u63a5\u3001\u805a\u5408\u6216\u7a97\u53e3\u5316\u5176\u8f93\u5165\u6570\u636e\u65f6\uff0c\u5b83\u90fd\u662f\u6709\u72b6\u6001\u7684\u3002Kafka Streams\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u5f3a\u5927\u3001\u7075\u6d3b\u3001\u9ad8\u5ea6\u53ef\u6269\u5c55\u548c\u5bb9\u9519\u7684\u6709\u72b6\u6001\u5904\u7406\u529f\u80fd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Duality of Streams and Tables<\/h2>\n\n\n\n<p><strong>\u6d41\u5373\u8868<\/strong>\uff1a\u6d41\u53ef\u4ee5\u88ab\u89c6\u4e3a\u8868\u7684\u66f4\u6539\u65e5\u5fd7\uff0c\u6d41\u4e2d\u7684\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u90fd\u6355\u83b7\u4e86\u8868\u7684\u72b6\u6001\u66f4\u6539\u3002\u56e0\u6b64\uff0c\u6d41\u662f\u4e00\u4e2a\u4f2a\u88c5\u7684\u8868\uff0c\u901a\u8fc7\u4ece\u5934\u5230\u5c3e\u91cd\u653e\u66f4\u6539\u65e5\u5fd7\u6765\u91cd\u5efa\u8868\uff0c\u5b83\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u53d8\u6210\u4e00\u4e2a\u201c\u771f\u5b9e\u201d\u7684\u8868\u3002\u540c\u6837\uff0c\u805a\u5408\u6d41\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u5c06\u8fd4\u56de\u4e00\u4e2a\u8868\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9875\u9762\u6d4f\u89c8\u4e8b\u4ef6\u7684\u8f93\u5165\u6d41\u8ba1\u7b97\u7528\u6237\u7684\u9875\u9762\u6d4f\u89c8\u603b\u6570\uff0c\u7ed3\u679c\u5c06\u662f\u4e00\u4e2a\u8868\uff0c\u8868\u952e\u662f\u7528\u6237\uff0c\u503c\u662f\u76f8\u5e94\u7684\u9875\u9762\u6d4f\u89c8\u8ba1\u6570\u3002<br><strong>\u8868\u5373\u6d41<\/strong>\uff1a\u8868\u53ef\u4ee5\u88ab\u89c6\u4e3a\u6d41\u4e2d\u6bcf\u4e2a\u952e\u5728\u67d0\u4e2a\u65f6\u95f4\u70b9\u7684\u6700\u65b0\u503c\u7684\u5feb\u7167\uff08\u6d41\u7684\u6570\u636e\u8bb0\u5f55\u662f\u952e\u503c\u5bf9\uff09\u3002\u56e0\u6b64\uff0c\u8868\u662f\u4f2a\u88c5\u7684\u6d41\uff0c\u901a\u8fc7\u8fed\u4ee3\u8868\u4e2d\u7684\u6bcf\u4e2a\u952e\u503c\u6761\u76ee\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5c06\u5176\u8f6c\u6362\u4e3a\u201c\u771f\u5b9e\u201d\u6d41\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">KStream<\/h2>\n\n\n\n<p>KStream\u662f<strong>\u8bb0\u5f55\u6d41<\/strong>\u7684\u62bd\u8c61\uff0c\u5176\u4e2d\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u8868\u793a\u65e0\u754c\u6570\u636e\u96c6\u4e2d\u7684\u81ea\u5305\u542b\u6570\u636e\u3002\u4f7f\u7528\u8868\u7c7b\u6bd4\uff0c\u8bb0\u5f55\u6d41\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u603b\u662f\u88ab\u89e3\u91ca\u4e3a\u201cINSERT\u201d\u2014\u2014\u60f3\u60f3\uff1a\u5728\u53ea\u8ffd\u52a0\u7684\u5206\u7c7b\u8d26\u4e2d\u6dfb\u52a0\u66f4\u591a\u6761\u76ee\u2014\u2014\u56e0\u4e3a\u6ca1\u6709\u8bb0\u5f55\u7528\u76f8\u540c\u7684\u952e\u66ff\u6362\u73b0\u6709\u7684\u884c\u3002\u4f8b\u5982\u4fe1\u7528\u5361\u4ea4\u6613\u3001\u9875\u9762\u67e5\u770b\u4e8b\u4ef6\u6216\u670d\u52a1\u5668\u65e5\u5fd7\u6761\u76ee\u3002<br>\u53ea\u6709Kafka Streams DSL\u5177\u6709KStream\u7684\u6982\u5ff5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">KTable<\/h2>\n\n\n\n<p>KTable\u662f\u53d8\u66f4\u65e5\u5fd7\u6d41\u7684\u62bd\u8c61\uff0c\u5176\u4e2d\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u4ee3\u8868\u4e00\u6b21\u66f4\u65b0\u3002\u66f4\u786e\u5207\u5730\u8bf4\uff0c\u6570\u636e\u8bb0\u5f55\u4e2d\u7684\u503c\u88ab\u89e3\u91ca\u4e3a\u540c\u4e00\u8bb0\u5f55\u952e\u7684\u6700\u540e\u4e00\u4e2a\u503c\u7684\u201cUPDATE\u201d\uff08\u5982\u679c\u6709\uff09\uff08\u5982\u679c\u76f8\u5e94\u7684\u952e\u8fd8\u4e0d\u5b58\u5728\uff0c\u5219\u66f4\u65b0\u5c06\u88ab\u89c6\u4e3aINSERT\uff09\u3002\u4f7f\u7528\u8868\u7c7b\u6bd4\uff0c\u66f4\u6539\u65e5\u5fd7\u6d41\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u88ab\u89e3\u91ca\u4e3aUPSERT\uff0c\u5373INSERT\/UPDATE\uff0c\u56e0\u4e3a\u4efb\u4f55\u5177\u6709\u76f8\u540c\u952e\u7684\u73b0\u6709\u884c\u90fd\u4f1a\u88ab\u8986\u76d6\u3002\u6b64\u5916\uff0c\u7a7a\u503c\u4ee5\u4e00\u79cd\u7279\u6b8a\u7684\u65b9\u5f0f\u89e3\u91ca\uff1a\u5177\u6709\u7a7a\u503c\u7684\u8bb0\u5f55\u8868\u793a\u8bb0\u5f55\u952e\u7684\u201cDELETE\u201d\u6216\u5893\u7891\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Effect of Kafka log compaction<\/h2>\n\n\n\n<p>\u5173\u4e8eKStream\u548cKTable\u7684\u53e6\u4e00\u79cd\u601d\u8003\u65b9\u5f0f\u5982\u4e0b\uff1a\u5982\u679c\u4f60\u8981\u5c06KTable\u5b58\u50a8\u5230Kafka\u4e3b\u9898\u4e2d\uff0c\u4f60\u53ef\u80fd\u60f3\u542f\u7528Kafka\u7684\u65e5\u5fd7\u538b\u7f29\u529f\u80fd\u6765\u8282\u7701\u5b58\u50a8\u7a7a\u95f4\u3002<br>\u4f46\u662f\uff0c\u5728KStream\u7684\u60c5\u51b5\u4e0b\u542f\u7528\u65e5\u5fd7\u538b\u7f29\u662f\u4e0d\u5b89\u5168\u7684\uff0c\u56e0\u4e3a\u4e00\u65e6\u65e5\u5fd7\u538b\u7f29\u5f00\u59cb\u6e05\u9664\u76f8\u540c\u5bc6\u94a5\u7684\u65e7\u6570\u636e\u8bb0\u5f55\uff0c\u5c31\u4f1a\u7834\u574f\u6570\u636e\u7684\u8bed\u4e49\u3002\u518d\u6b21\u62ff\u8d77\u63d2\u56fe\u793a\u4f8b\uff0c\u4f60\u4f1a\u7a81\u7136\u5f97\u5230alice\u76843\uff0c\u800c\u4e0d\u662f4\uff0c\u56e0\u4e3a\u65e5\u5fd7\u538b\u7f29\u4f1a\u5220\u9664\uff08\u201calice\u201d\uff0c1\uff09\u6570\u636e\u8bb0\u5f55\u3002\u8fd9\u610f\u5473\u7740\u65e5\u5fd7\u538b\u7f29\u5bf9\u4e8eKTable\uff08changelog\u6d41\uff09\u662f\u5b89\u5168\u7684\uff0c\u4f46\u5bf9\u4e8eKStream\uff08\u8bb0\u5f55\u6d41\uff09\u662f\u9519\u8bef\u7684\u3002<br><br><strong>\u65e5\u5fd7\u538b\u7f29\u5bf9\u8868\u5b89\u5168\uff0c\u5bf9\u6d41\u4e0d\u5b89\u5168<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">GlobalKTable<\/h2>\n\n\n\n<p>\u4e0eKTable\u4e00\u6837\uff0cGlobalKTable\u662f\u53d8\u66f4\u65e5\u5fd7\u6d41\u7684\u62bd\u8c61\uff0c\u5176\u4e2d\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u4ee3\u8868\u4e00\u6b21\u66f4\u65b0\u3002<br><br>GlobalKTable\u548cKTable\u7684\u533a\u522b\u5728\u4e8e\u586b\u5145\u7684\u6570\u636e<br>KTable\u53ea\u4f1a\u5b58\u50a8Topic\u4e2d\u4e00\u4e2a\u5206\u533a\u7684\u6570\u636e<br>GlobalTable\u4f1a\u5b58\u50a8\u6240\u6709\u5206\u533a\u7684\u6570\u636e<br><br>\u5168\u5c40\u8868\u7684\u597d\u5904\uff1a<br><br>\u60a8\u53ef\u4ee5\u4f7f\u7528\u5168\u5c40\u8868\u5c06\u4fe1\u606f\u201c\u5e7f\u64ad\u201d\u5230\u5e94\u7528\u7a0b\u5e8f\u7684\u6240\u6709\u8fd0\u884c\u5b9e\u4f8b\u3002<br>\u5168\u5c40\u8868\u5b9e\u73b0\u4e86\u66f4\u65b9\u4fbf\u3001\u66f4\u9ad8\u6548\u7684\u8fde\u63a5\u3002<br>\u5168\u5c40\u8868\u652f\u6301\u661f\u578b\u8fde\u63a5\u3002<br>\u5f53\u94fe\u63a5\u591a\u4e2a\u8054\u63a5\u65f6\uff0c\u5168\u5c40\u8868\u7684\u6548\u7387\u66f4\u9ad8\u3002<br>\u5f53\u5bf9\u5168\u5c40\u8868\u8fdb\u884c\u8054\u63a5\u65f6\uff0c\u8f93\u5165\u6570\u636e\u4e0d\u9700\u8981\u8fdb\u884c\u5171\u5206\u533a\u3002<br>\u5168\u5c40\u8868\u652f\u6301\u201c\u5916\u952e\u201d\u67e5\u627e\uff0c\u8fd9\u610f\u5473\u7740\u60a8\u4e0d\u4ec5\u53ef\u4ee5\u6309\u8bb0\u5f55\u952e\uff0c\u8fd8\u53ef\u4ee5\u6309\u8bb0\u5f55\u503c\u4e2d\u7684\u6570\u636e\u67e5\u627e\u8868\u4e2d\u7684\u6570\u636e\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8fde\u63a5\u603b\u662f\u4f7f\u7528\u8868\u7684\u4e3b\u952e\uff0c\u201c\u5916\u952e\u201d\u6307\u7684\u662f\u6d41\u8bb0\u5f55\u3002\u4e0e\u59cb\u7ec8\u6839\u636e\u6d41\u8bb0\u5f55\u952e\u8ba1\u7b97\u8fde\u63a5\u7684\u6d41\u8868\u8fde\u63a5\u4e0d\u540c\uff0c\u6d41globalKTable\u8fde\u63a5\u4f7f\u60a8\u80fd\u591f\u76f4\u63a5\u4ece\u6d41\u8bb0\u5f55\u7684\u503c\u4e2d\u63d0\u53d6\u8fde\u63a5\u952e\u3002<br><br>\u5168\u5c40\u8868\u7684\u7f3a\u70b9\u5305\u62ec\uff1a<br>\u4e0e\uff08\u5206\u533a\u7684\uff09KTable\u76f8\u6bd4\uff0c\u672c\u5730\u5b58\u50a8\u6d88\u8017\u589e\u52a0\uff0c\u56e0\u4e3a\u6574\u4e2a\u4e3b\u9898\u90fd\u88ab\u8ddf\u8e2a\u3002<br>\u4e0e\uff08\u5206\u533a\u7684\uff09KTable\u76f8\u6bd4\uff0c\u7f51\u7edc\u548cKafka\u4ee3\u7406\u8d1f\u8f7d\u589e\u52a0\uff0c\u56e0\u4e3a\u6574\u4e2a\u4e3b\u9898\u90fd\u88ab\u8bfb\u53d6\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Time<\/h2>\n\n\n\n<p>\u6d41\u5904\u7406\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u65b9\u9762\u662f<strong>\u65f6\u95f4\u7684\u6982\u5ff5<\/strong>\uff0c\u4ee5\u53ca\u5982\u4f55<strong>\u5bf9\u5176\u8fdb\u884c\u5efa\u6a21\u548c\u96c6\u6210<\/strong>\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u64cd\u4f5c\uff08\u5982\u7a97\u53e3\u5316\uff09\u662f\u57fa\u4e8e\u65f6\u95f4\u8fb9\u754c\u5b9a\u4e49\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.&nbsp;<strong>\u4e8b\u4ef6\u65f6\u95f4\uff08Event Time\uff09<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a\u4e8b\u4ef6\u5b9e\u9645\u53d1\u751f\u7684\u65f6\u95f4\uff0c\u901a\u5e38\u7531\u6570\u636e\u6e90\u751f\u6210\u65f6\u5d4c\u5165\u5230\u8bb0\u5f55\u4e2d\u3002<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1aGPS\u4f20\u611f\u5668\u8bb0\u5f55\u7684\u4f4d\u7f6e\u53d8\u5316\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u4e8b\u4ef6\u65f6\u95f4\u901a\u5e38\u662f\u6700\u51c6\u786e\u7684\u65f6\u95f4\u8bed\u4e49\uff0c\u4f46\u9700\u8981\u6570\u636e\u6e90\u652f\u6301\u65f6\u95f4\u6233\u7684\u5d4c\u5165\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.&nbsp;<strong>\u5904\u7406\u65f6\u95f4\uff08Processing Time\uff09<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u5904\u7406\u8bb0\u5f55\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1a\u5206\u6790\u5e94\u7528\u7a0b\u5e8f\u5904\u7406GPS\u6570\u636e\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u5904\u7406\u65f6\u95f4\u901a\u5e38\u6bd4\u4e8b\u4ef6\u65f6\u95f4\u665a\uff0c\u53ef\u80fd\u5ef6\u8fdf\u51e0\u6beb\u79d2\u5230\u51e0\u5c0f\u65f6\u751a\u81f3\u51e0\u5929\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5904\u7406\u7ba1\u9053\u7684\u7c7b\u578b\uff08\u5b9e\u65f6\u6216\u6279\u5904\u7406\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.&nbsp;<strong>\u6444\u53d6\u65f6\u95f4\uff08Ingestion Time\uff09<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1aKafka\u4ee3\u7406\u5c06\u8bb0\u5f55\u5b58\u50a8\u5230\u4e3b\u9898\u5206\u533a\u4e2d\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1a\u6444\u53d6\u65f6\u95f4\u8fd1\u4f3c\u4e8e\u4e8b\u4ef6\u65f6\u95f4\uff0c\u4f46\u65f6\u95f4\u6233\u662f\u5728\u8bb0\u5f55\u8fdb\u5165Kafka\u65f6\u751f\u6210\u7684\u3002\u9002\u7528\u4e8e\u65e0\u6cd5\u4f7f\u7528\u4e8b\u4ef6\u65f6\u95f4\u7684\u573a\u666f\uff08\u5982\u65e7\u7248Kafka\u751f\u4ea7\u8005\u6216\u65e0\u6cd5\u8bbf\u95ee\u672c\u5730\u65f6\u949f\u7684\u60c5\u51b5\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.&nbsp;<strong>\u6d41\u65f6\u95f4\uff08Stream Time\uff09<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6240\u6709\u5df2\u5904\u7406\u8bb0\u5f55\u4e2d\u6700\u5927\u7684\u65f6\u95f4\u6233\u3002<\/li>\n\n\n\n<li><strong>\u7279\u70b9<\/strong>\uff1aKafka Streams \u5728\u6bcf\u4e2a\u4efb\u52a1\u7684\u57fa\u7840\u4e0a\u8ddf\u8e2a\u6d41\u65f6\u95f4\uff0c\u7528\u4e8e\u540c\u6b65\u591a\u4e2a\u8f93\u5165\u6d41\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.&nbsp;<strong>\u65f6\u95f4\u6233\u63d0\u53d6\u5668\uff08Timestamp Extractor\uff09<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1aKafka Streams \u901a\u8fc7\u65f6\u95f4\u6233\u63d0\u53d6\u5668\u4e3a\u6bcf\u6761\u8bb0\u5f55\u5206\u914d\u65f6\u95f4\u6233\u3002<\/li>\n\n\n\n<li><strong>\u7528\u9014<\/strong>\uff1a\u65f6\u95f4\u6233\u63d0\u53d6\u5668\u53ef\u4ee5\u6839\u636e\u8bb0\u5f55\u5185\u5bb9\u63d0\u53d6\u65f6\u95f4\u6233\uff0c\u652f\u6301\u4e8b\u4ef6\u65f6\u95f4\u3001\u6444\u53d6\u65f6\u95f4\u6216\u5904\u7406\u65f6\u95f4\u8bed\u4e49\u3002<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1a\u81ea\u5b9a\u4e49\u65f6\u95f4\u6233\u63d0\u53d6\u5668\u53ef\u4ee5\u4ece\u8bb0\u5f55\u4e2d\u63d0\u53d6\u65f6\u95f4\u6233\uff0c\u5e76\u5c06\u5176\u7528\u4e8e\u5904\u7406\u65f6\u95f4\u6216\u4e8b\u4ef6\u65f6\u95f4\u8bed\u4e49\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6.&nbsp;<strong>\u8f93\u51fa\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u5206\u914d<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ee7\u627f\u8f93\u5165\u8bb0\u5f55\u65f6\u95f4\u6233<\/strong>\uff1a\u5f53\u8f93\u51fa\u8bb0\u5f55\u76f4\u63a5\u7531\u8f93\u5165\u8bb0\u5f55\u751f\u6210\u65f6\uff0c\u65f6\u95f4\u6233\u901a\u5e38\u4ece\u8f93\u5165\u8bb0\u5f55\u7ee7\u627f\u3002<\/li>\n\n\n\n<li><strong>\u5468\u671f\u6027\u51fd\u6570\u751f\u6210\u7684\u65f6\u95f4\u6233<\/strong>\uff1a\u8f93\u51fa\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u5b9a\u4e49\u4e3a\u6d41\u4efb\u52a1\u7684\u5f53\u524d\u5185\u90e8\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u805a\u5408\u548c\u8fde\u63a5\u64cd\u4f5c\u7684\u65f6\u95f4\u6233<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u8fde\u63a5\u64cd\u4f5c\uff0c\u8f93\u51fa\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u4e3a\u5de6\u53f3\u8f93\u5165\u8bb0\u5f55\u65f6\u95f4\u6233\u7684\u6700\u5927\u503c\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u6d41\u8868\u8fde\u63a5\uff0c\u8f93\u51fa\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u4e3a\u6d41\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u805a\u5408\u64cd\u4f5c\uff0c\u65f6\u95f4\u6233\u4e3a\u89e6\u53d1\u66f4\u65b0\u7684\u6700\u65b0\u8f93\u5165\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">7.&nbsp;<strong>\u5904\u7406\u5668API\u4e2d\u7684\u65f6\u95f4\u6233\u5206\u914d<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u663e\u5f0f\u5206\u914d\u65f6\u95f4\u6233<\/strong>\uff1a\u53ef\u4ee5\u901a\u8fc7\u00a0<code>forward()<\/code>\u00a0\u65b9\u6cd5\u663e\u5f0f\u4e3a\u8f93\u51fa\u8bb0\u5f55\u5206\u914d\u65f6\u95f4\u6233\u3002<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1a\u5728\u00a0<code>Processor<\/code>\u00a0\u5b9e\u73b0\u4e2d\uff0c\u53ef\u4ee5\u4ece\u8f93\u5165\u8bb0\u5f55\u4e2d\u63d0\u53d6\u65f6\u95f4\u6233\uff0c\u5e76\u901a\u8fc7\u81ea\u5b9a\u4e49\u65b9\u6cd5\u8ba1\u7b97\u8f93\u51fa\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">8.&nbsp;<strong>Kafka Streams API\u4e2d\u7684\u65f6\u95f4\u6233\u5206\u914d<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u81ea\u5b9a\u4e49\u65f6\u95f4\u6233\u63d0\u53d6\u5668<\/strong>\uff1a\u901a\u8fc7\u5b9e\u73b0\u00a0<code>TimestampExtractor<\/code>\u00a0\u63a5\u53e3\uff0c\u53ef\u4ee5\u4ece\u8bb0\u5f55\u4e2d\u63d0\u53d6\u65f6\u95f4\u6233\uff0c\u5e76\u5c06\u5176\u7528\u4e8e\u5904\u7406\u65f6\u95f4\u6216\u4e8b\u4ef6\u65f6\u95f4\u8bed\u4e49\u3002<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1a\u81ea\u5b9a\u4e49\u65f6\u95f4\u6233\u63d0\u53d6\u5668\u53ef\u4ee5\u4ece\u8bb0\u5f55\u4e2d\u63d0\u53d6\u65f6\u95f4\u6233\uff0c\u5e76\u5728\u521b\u5efa\u00a0<code>KStream<\/code>\u00a0\u65f6\u4f7f\u7528\u8be5\u63d0\u53d6\u5668\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">9.&nbsp;<strong>\u5176\u4ed6\u65f6\u95f4\u65b9\u9762\u7684\u6ce8\u610f\u4e8b\u9879<\/strong><\/h3>\n\n\n\n<p><strong>\u65f6\u95f4\u8bed\u4e49\u7684\u4e00\u81f4\u6027<\/strong>\uff1a\u907f\u514d\u5c06\u5177\u6709\u4e0d\u540c\u65f6\u95f4\u8bed\u4e49\u7684\u4e3b\u9898\u6df7\u5408\u5728\u4e00\u8d77\u3002<br><\/p>\n\n\n\n<p><strong>\u65f6\u533a\u548c\u65e5\u5386<\/strong>\uff1a\u786e\u4fdd\u65f6\u533a\u548c\u65e5\u5386\u5728\u6574\u4e2a\u6d41\u6570\u636e\u7ba1\u9053\u4e2d\u6b63\u786e\u540c\u6b65\uff0c\u6216\u81f3\u5c11\u7406\u89e3\u548c\u8ddf\u8e2a\u8fd9\u4e9b\u5dee\u5f02\u3002<\/p>\n\n\n\n<p><strong>\u65f6\u95f4\u683c\u5f0f<\/strong>\uff1a\u901a\u5e38\u5efa\u8bae\u4f7f\u7528UTC\u6216Unix\u65f6\u95f4\uff08\u5982\u7eaa\u5143\u540e\u7684\u79d2\u6570\uff09\u6765\u6307\u5b9a\u65f6\u95f4\u4fe1\u606f\uff0c\u4ee5\u907f\u514d\u65f6\u533a\u6df7\u6dc6\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Aggregations Joins Windowing<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u805a\u5408\uff08Aggregations\uff09<\/h3>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u805a\u5408\u64cd\u4f5c\u63a5\u6536\u4e00\u4e2a\u8f93\u5165\u6d41\u6216\u8868\uff0c\u5e76\u901a\u8fc7\u5c06\u591a\u4e2a\u8f93\u5165\u8bb0\u5f55\u7ec4\u5408\u6210\u5355\u4e2a\u8f93\u51fa\u8bb0\u5f55\u6765\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u8868\u3002\u5e38\u89c1\u7684\u805a\u5408\u64cd\u4f5c\u5305\u62ec\u8ba1\u7b97\u8ba1\u6570\u6216\u6c42\u548c\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 Kafka Streams DSL \u4e2d\uff0c\u805a\u5408\u64cd\u4f5c\u7684\u8f93\u5165\u53ef\u4ee5\u662f\u00a0<code>KStream<\/code>\u00a0\u6216\u00a0<code>KTable<\/code>\uff0c\u4f46\u8f93\u51fa\u59cb\u7ec8\u662f\u00a0<code>KTable<\/code>\u3002<\/li>\n\n\n\n<li>\u8fd9\u79cd\u8bbe\u8ba1\u5141\u8bb8 Kafka Streams \u5728\u8bb0\u5f55\u4e71\u5e8f\u5230\u8fbe\u65f6\u66f4\u65b0\u805a\u5408\u503c\u3002\u5f53\u4e71\u5e8f\u8bb0\u5f55\u5230\u8fbe\u65f6\uff0c\u805a\u5408\u64cd\u4f5c\u4f1a\u751f\u6210\u5e76\u53d1\u51fa\u4e00\u4e2a\u65b0\u7684\u805a\u5408\u503c\u3002<\/li>\n\n\n\n<li>\u7531\u4e8e\u8f93\u51fa\u662f\u00a0<code>KTable<\/code>\uff0c\u65b0\u503c\u4f1a\u8986\u76d6\u65e7\u503c\uff08\u76f8\u540c\u952e\uff09\uff0c\u5e76\u5728\u540e\u7eed\u5904\u7406\u6b65\u9aa4\u4e2d\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u57fa\u4e8e\u952e\uff08key\uff09\u5bf9\u8bb0\u5f55\u8fdb\u884c\u5206\u7ec4\u5e76\u8ba1\u7b97\u805a\u5408\u7ed3\u679c\u7684\u573a\u666f\uff0c\u5982\u8ba1\u7b97\u603b\u548c\u3001\u5e73\u5747\u503c\u6216\u8ba1\u6570\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fde\u63a5\uff08Joins\uff09<\/h3>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u8fde\u63a5\u64cd\u4f5c\u57fa\u4e8e\u6570\u636e\u8bb0\u5f55\u7684\u952e\uff08key\uff09\u5408\u5e76\u4e24\u4e2a\u8f93\u5165\u6d41\u6216\u8868\uff0c\u5e76\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u6d41\u6216\u8868\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams DSL \u63d0\u4f9b\u4e86\u591a\u79cd\u8fde\u63a5\u64cd\u4f5c\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u88ab\u8fde\u63a5\u7684\u6d41\u548c\u8868\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c<code>KStream-KStream<\/code>\u00a0\u8fde\u63a5\u3001<code>KStream-KTable<\/code>\u00a0\u8fde\u63a5\u7b49\u3002<\/li>\n\n\n\n<li>\u8fde\u63a5\u64cd\u4f5c\u901a\u5e38\u7528\u4e8e\u5c06\u4e24\u4e2a\u6570\u636e\u96c6\u57fa\u4e8e\u952e\u8fdb\u884c\u5173\u8054\uff0c\u4f8b\u5982\u5c06\u7528\u6237\u884c\u4e3a\u6570\u636e\u4e0e\u7528\u6237\u5c5e\u6027\u6570\u636e\u5173\u8054\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u5c06\u4e24\u4e2a\u6570\u636e\u96c6\u57fa\u4e8e\u952e\u8fdb\u884c\u5408\u5e76\u7684\u573a\u666f\uff0c\u5982\u6570\u636e\u5173\u8054\u3001\u6570\u636e\u8865\u5145\u7b49\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7a97\u53e3\u5316\uff08Windowing\uff09<\/h3>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u7a97\u53e3\u5316\u64cd\u4f5c\u5141\u8bb8\u4f60\u5c06\u5177\u6709\u76f8\u540c\u952e\u7684\u8bb0\u5f55\u5206\u7ec4\u5230\u79f0\u4e3a\u201c\u7a97\u53e3\u201d\u7684\u65f6\u95f4\u6bb5\u4e2d\uff0c\u4ee5\u4fbf\u8fdb\u884c\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u6216\u8fde\u63a5\uff09\u3002\u7a97\u53e3\u662f\u57fa\u4e8e\u6bcf\u4e2a\u8bb0\u5f55\u952e\u8fdb\u884c\u8ddf\u8e2a\u7684\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 Kafka Streams DSL \u4e2d\uff0c\u7a97\u53e3\u5316\u64cd\u4f5c\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u5bbd\u9650\u671f\uff08grace period\uff09\uff0c\u7528\u4e8e\u63a7\u5236\u7a97\u53e3\u7ed3\u679c\u7684\u6700\u7ec8\u6027\u3002\u5bbd\u9650\u671f\u51b3\u5b9a\u4e86 Kafka Streams \u4f1a\u7b49\u5f85\u4e71\u5e8f\u8bb0\u5f55\u591a\u957f\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8bb0\u5f55\u5728\u7a97\u53e3\u7684\u5bbd\u9650\u671f\u4e4b\u540e\u5230\u8fbe\uff08\u5373\u00a0<code>record.ts > window-end-time + grace-period<\/code>\uff09\uff0c\u5219\u8be5\u8bb0\u5f55\u5c06\u88ab\u4e22\u5f03\uff0c\u4e0d\u4f1a\u5728\u8be5\u7a97\u53e3\u4e2d\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u4e71\u5e8f\u8bb0\u5f55\u5728\u73b0\u5b9e\u4e16\u754c\u4e2d\u662f\u5e38\u89c1\u7684\uff0c\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u6b63\u786e\u5904\u7406\u5b83\u4eec\u3002Kafka Streams \u80fd\u591f\u4e3a\u4e8b\u4ef6\u65f6\u95f4\u8bed\u4e49\uff08event-time\uff09\u6b63\u786e\u5904\u7406\u4e71\u5e8f\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5bbd\u9650\u671f\u4e0e\u4fdd\u7559\u65f6\u95f4<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bbd\u9650\u671f\uff08grace period\uff09\u662f\u7a97\u53e3\u7ed3\u675f\u540e\u5141\u8bb8\u4e71\u5e8f\u4e8b\u4ef6\u5230\u8fbe\u7684\u65f6\u95f4\uff0c\u76f4\u63a5\u5173\u7cfb\u5230\u7a97\u53e3\u7ed3\u679c\u7684\u6700\u7ec8\u6027\u3002<\/li>\n\n\n\n<li>\u4fdd\u7559\u65f6\u95f4\uff08retention time\uff09\u662f\u7a97\u53e3\u5b58\u50a8\u7684\u4f4e\u7ea7\u5c5e\u6027\uff0c\u7528\u4e8e\u63a7\u5236\u4e8b\u4ef6\u5728\u5b58\u50a8\u4e2d\u4fdd\u7559\u7684\u65f6\u95f4\u3002\u5bbd\u9650\u671f\u662f\u4fdd\u7559\u65f6\u95f4\u7684\u4e0b\u9650\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a\u9002\u7528\u4e8e\u57fa\u4e8e\u65f6\u95f4\u7a97\u53e3\u7684\u805a\u5408\u6216\u8fde\u63a5\u64cd\u4f5c\uff0c\u5982\u8ba1\u7b97\u6bcf\u5206\u949f\u7684\u70b9\u51fb\u91cf\u3001\u6bcf\u5c0f\u65f6\u7684\u4ea4\u6613\u603b\u989d\u7b49\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u805a\u5408<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5c06\u591a\u4e2a\u8f93\u5165\u8bb0\u5f55\u7ec4\u5408\u6210\u5355\u4e2a\u8f93\u51fa\u8bb0\u5f55\uff0c\u8f93\u51fa\u59cb\u7ec8\u662f\u00a0<code>KTable<\/code>\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u4e71\u5e8f\u8bb0\u5f55\u7684\u66f4\u65b0\uff0c\u9002\u7528\u4e8e\u8ba1\u6570\u3001\u6c42\u548c\u7b49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fde\u63a5<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u57fa\u4e8e\u952e\u5408\u5e76\u4e24\u4e2a\u8f93\u5165\u6d41\u6216\u8868\uff0c\u751f\u6210\u65b0\u7684\u6d41\u6216\u8868\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u6570\u636e\u5173\u8054\u548c\u6570\u636e\u8865\u5145\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7a97\u53e3\u5316<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5c06\u8bb0\u5f55\u6309\u65f6\u95f4\u7a97\u53e3\u5206\u7ec4\uff0c\u652f\u6301\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u6216\u8fde\u63a5\uff09\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u5bbd\u9650\u671f\u63a7\u5236\u4e71\u5e8f\u8bb0\u5f55\u7684\u5904\u7406\uff0c\u9002\u7528\u4e8e\u57fa\u4e8e\u65f6\u95f4\u7a97\u53e3\u7684\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u6838\u5fc3\u8981\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u65f6\u95f4\u5904\u7406\u80fd\u529b\uff0c\u652f\u6301\u4e8b\u4ef6\u65f6\u95f4\u3001\u5904\u7406\u65f6\u95f4\u548c\u6444\u53d6\u65f6\u95f4\u8bed\u4e49\u3002<\/li>\n\n\n\n<li>\u4e71\u5e8f\u8bb0\u5f55\u7684\u5904\u7406\u662f\u6d41\u5904\u7406\u4e2d\u7684\u5173\u952e\u95ee\u9898\uff0cKafka Streams \u901a\u8fc7\u7a97\u53e3\u5316\u548c\u5bbd\u9650\u671f\u673a\u5236\u6709\u6548\u89e3\u51b3\u4e86\u8fd9\u4e00\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u805a\u5408\u3001\u8fde\u63a5\u548c\u7a97\u53e3\u5316\u662f Kafka Streams \u4e2d\u6700\u5e38\u7528\u7684\u6709\u72b6\u6001\u64cd\u4f5c\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u6d41\u5904\u7406\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-slate-fragment=\"JTVCJTdCJTIydHlwZSUyMiUzQSUyMnBhcmFncmFwaCUyMiUyQyUyMmNoaWxkcmVuJTIyJTNBJTVCJTdCJTIyaWQlMjIlM0ElMjJlSjVvOWoyWDZCJTIyJTJDJTIycGFyYUlkeCUyMiUzQTAlMkMlMjJzcmMlMjIlM0ElMjJJbnRlcmFjdGl2ZSUyMFF1ZXJpZXMlMjIlMkMlMjJkc3QlMjIlM0ElMjIlRTQlQkElQTQlRTQlQkElOTIlRTUlQkMlOEYlRTYlOUYlQTUlRTglQUYlQTIlMjIlMkMlMjJtZXRhZGF0YSUyMiUzQSUyMiUyMiUyQyUyMm1hdGNoZXMlMjIlM0FudWxsJTJDJTIybWV0YURhdGElMjIlM0ElNUIlNUQlMkMlMjJ0ZXh0JTIyJTNBJTIySW50ZXJhY3RpdmUlMjBRdWVyaWVzJTIyJTdEJTVEJTdEJTVE\" style=\"white-space: pre;\">Interactive Queries<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff08Interactive Queries\uff09<\/h3>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u4ea4\u4e92\u5f0f\u67e5\u8be2\u5141\u8bb8\u4f60\u5c06\u6d41\u5904\u7406\u5c42\u89c6\u4e3a\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5d4c\u5165\u5f0f\u6570\u636e\u5e93\uff0c\u5e76\u76f4\u63a5\u67e5\u8be2\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u6700\u65b0\u72b6\u6001\u3002\u4f60\u65e0\u9700\u5148\u5c06\u72b6\u6001\u7269\u5316\u5230\u5916\u90e8\u6570\u636e\u5e93\u6216\u5b58\u50a8\u7cfb\u7edf\u4e2d\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ea4\u4e92\u5f0f\u67e5\u8be2\u7b80\u5316\u4e86\u67b6\u6784\uff0c\u4f7f\u5176\u66f4\u52a0\u4ee5\u5e94\u7528\u7a0b\u5e8f\u4e3a\u4e2d\u5fc3\u3002<\/li>\n\n\n\n<li>\u5b83\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\uff0c\u5141\u8bb8\u4f60\u6839\u636e\u5177\u4f53\u7528\u4f8b\u9009\u62e9\u6700\u5408\u9002\u7684\u67b6\u6784\uff0c\u800c\u4e0d\u662f\u5c40\u9650\u4e8e\u5355\u4e00\u7684\u65b9\u5f0f\u3002<\/li>\n\n\n\n<li>\u4f60\u8fd8\u53ef\u4ee5\u8fd0\u884c\u6df7\u5408\u67b6\u6784\uff0c\u4f8b\u5982\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u652f\u6301\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff0c\u540c\u65f6\u5c06\u90e8\u5206\u7ed3\u679c\u5171\u4eab\u7ed9\u5916\u90e8\u7cfb\u7edf\uff08\u5982\u901a\u8fc7 Kafka Connect\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u67b6\u6784\u5bf9\u6bd4<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e0d\u4f7f\u7528\u4ea4\u4e92\u5f0f\u67e5\u8be2<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67b6\u6784\u590d\u6742\u6027\u589e\u52a0\uff0c\u9700\u8981\u4f9d\u8d56\u5916\u90e8\u6570\u636e\u5e93\u6216\u5b58\u50a8\u7cfb\u7edf\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u9700\u8981\u5148\u7269\u5316\u5230\u5916\u90e8\u7cfb\u7edf\uff0c\u589e\u52a0\u4e86\u5ef6\u8fdf\u548c\u8d44\u6e90\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528\u4ea4\u4e92\u5f0f\u67e5\u8be2<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67b6\u6784\u7b80\u5316\uff0c\u66f4\u52a0\u4ee5\u5e94\u7528\u7a0b\u5e8f\u4e3a\u4e2d\u5fc3\u3002<\/li>\n\n\n\n<li>\u53ef\u4ee5\u76f4\u63a5\u67e5\u8be2\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\uff0c\u51cf\u5c11\u4e86\u5bf9\u5916\u90e8\u7cfb\u7edf\u7684\u4f9d\u8d56\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u9002\u7528\u573a\u666f<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53d7\u76ca\u4e8e\u4ea4\u4e92\u5f0f\u67e5\u8be2\u7684\u5e94\u7528\u573a\u666f\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9e\u65f6\u76d1\u63a7<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u524d\u7aef\u4eea\u8868\u677f\u53ef\u4ee5\u5b9e\u65f6\u67e5\u8be2 Kafka Streams \u5e94\u7528\u7a0b\u5e8f\uff0c\u83b7\u53d6\u5f53\u524d\u53d7\u7f51\u7edc\u653b\u51fb\u7684\u670d\u52a1\u5668\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u57fa\u4e8e\u5b9e\u65f6\u7f51\u7edc\u9065\u6d4b\u6570\u636e\u751f\u6210\u5a01\u80c1\u60c5\u62a5\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u89c6\u9891\u6e38\u620f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u6301\u7eed\u8ddf\u8e2a\u73a9\u5bb6\u5728\u6e38\u620f\u4e16\u754c\u4e2d\u7684\u4f4d\u7f6e\u66f4\u65b0\u3002<\/li>\n\n\n\n<li>\u79fb\u52a8\u4f34\u4fa3\u5e94\u7528\u53ef\u4ee5\u76f4\u63a5\u67e5\u8be2\u73a9\u5bb6\u7684\u5f53\u524d\u4f4d\u7f6e\uff0c\u5e76\u9080\u8bf7\u670b\u53cb\u52a0\u5165\u3002<\/li>\n\n\n\n<li>\u6e38\u620f\u5382\u5546\u53ef\u4ee5\u5229\u7528\u6570\u636e\u8bc6\u522b\u73a9\u5bb6\u5f02\u5e38\u805a\u96c6\u7684\u70ed\u70b9\uff0c\u53d1\u73b0\u6f5c\u5728\u7684\u6e38\u620f\u6f0f\u6d1e\u6216\u64cd\u4f5c\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u98ce\u9669\u4e0e\u6b3a\u8bc8\u68c0\u6d4b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u6301\u7eed\u5206\u6790\u7528\u6237\u4ea4\u6613\uff0c\u68c0\u6d4b\u5f02\u5e38\u548c\u53ef\u7591\u884c\u4e3a\u3002<\/li>\n\n\n\n<li>\u5728\u7ebf\u94f6\u884c\u5e94\u7528\u53ef\u4ee5\u5728\u7528\u6237\u767b\u5f55\u65f6\u76f4\u63a5\u67e5\u8be2 Kafka Streams \u5e94\u7528\u7a0b\u5e8f\uff0c\u62d2\u7edd\u6807\u8bb0\u4e3a\u53ef\u7591\u7684\u7528\u6237\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8d8b\u52bf\u68c0\u6d4b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u57fa\u4e8e\u5b9e\u65f6\u6536\u96c6\u7684\u7528\u6237\u542c\u6b4c\u884c\u4e3a\uff0c\u6301\u7eed\u8ba1\u7b97\u6700\u65b0\u7684\u97f3\u4e50\u6392\u884c\u699c\u3002<\/li>\n\n\n\n<li>\u97f3\u4e50\u5546\u5e97\u7684\u79fb\u52a8\u6216\u684c\u9762\u5e94\u7528\u53ef\u4ee5\u5728\u7528\u6237\u6d4f\u89c8\u65f6\u4ea4\u4e92\u5f0f\u67e5\u8be2\u6700\u65b0\u6392\u884c\u699c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6838\u5fc3\u4f18\u52bf<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ea4\u4e92\u5f0f\u67e5\u8be2\u5c06\u6d41\u5904\u7406\u5c42\u53d8\u4e3a\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u5d4c\u5165\u5f0f\u6570\u636e\u5e93\uff0c\u652f\u6301\u76f4\u63a5\u67e5\u8be2\u5e94\u7528\u7a0b\u5e8f\u7684\u6700\u65b0\u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u7b80\u5316\u4e86\u67b6\u6784\uff0c\u51cf\u5c11\u4e86\u5bf9\u5916\u90e8\u7cfb\u7edf\u7684\u4f9d\u8d56\uff0c\u964d\u4f4e\u4e86\u590d\u6742\u6027\u548c\u8d44\u6e90\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9e\u65f6\u76d1\u63a7\u3001\u89c6\u9891\u6e38\u620f\u3001\u98ce\u9669\u4e0e\u6b3a\u8bc8\u68c0\u6d4b\u3001\u8d8b\u52bf\u68c0\u6d4b\u7b49\u9700\u8981\u5b9e\u65f6\u67e5\u8be2\u548c\u54cd\u5e94\u72b6\u6001\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u652f\u6301\u7eaf\u4ea4\u4e92\u5f0f\u67e5\u8be2\u67b6\u6784\uff0c\u4e5f\u652f\u6301\u6df7\u5408\u67b6\u6784\uff08\u5982\u4e0e\u5916\u90e8\u7cfb\u7edf\u5171\u4eab\u90e8\u5206\u7ed3\u679c\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5f00\u53d1\u8005\u4ef7\u503c<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u3001\u66f4\u7075\u6d3b\u7684\u6d41\u5904\u7406\u89e3\u51b3\u65b9\u6848\uff0c\u9002\u7528\u4e8e\u9700\u8981\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u5b9e\u65f6\u6027\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u901a\u8fc7\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff0cKafka Streams \u4e0d\u4ec5\u80fd\u591f\u5904\u7406\u5b9e\u65f6\u6570\u636e\u6d41\uff0c\u8fd8\u80fd\u76f4\u63a5\u63d0\u4f9b\u67e5\u8be2\u670d\u52a1\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u5b9e\u7528\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Processing Guarantees<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5904\u7406\u4fdd\u8bc1\uff08Processing Guarantees\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u652f\u6301 <strong>\u81f3\u5c11\u4e00\u6b21\uff08at-least-once\uff09<\/strong> \u548c <strong>\u7cbe\u786e\u4e00\u6b21\uff08exactly-once\uff09<\/strong> \u7684\u5904\u7406\u4fdd\u8bc1\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\uff08At-least-once Semantics\uff09<\/strong><\/h4>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u8bb0\u5f55\u4e0d\u4f1a\u4e22\u5931\uff0c\u4f46\u53ef\u80fd\u4f1a\u88ab\u91cd\u65b0\u4f20\u9012\u548c\u5904\u7406\u3002\u5982\u679c\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u5931\u8d25\uff0c\u6570\u636e\u8bb0\u5f55\u4e0d\u4f1a\u4e22\u5931\uff0c\u4f46\u67d0\u4e9b\u8bb0\u5f55\u53ef\u80fd\u4f1a\u88ab\u91cd\u65b0\u8bfb\u53d6\u5e76\u91cd\u65b0\u5904\u7406\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cKafka Streams \u542f\u7528\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\uff08<code>processing.guarantee=\"at_least_once\"<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u5bf9\u6570\u636e\u91cd\u590d\u4e0d\u654f\u611f\u7684\u573a\u666f\uff0c\u4f46\u53ef\u80fd\u4f1a\u5bfc\u81f4\u91cd\u590d\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u95ee\u9898<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u6d88\u606f\u6210\u529f\u5199\u5165\u72b6\u6001\u5b58\u50a8\u4f46\u672a\u80fd\u6210\u529f\u5199\u5165\u8f93\u51fa\u4e3b\u9898\uff0c\u6216\u8005\u6d88\u606f\u6210\u529f\u5199\u5165\u8f93\u51fa\u4e3b\u9898\u4f46\u672a\u80fd\u63d0\u4ea4\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\uff08\u5982\u91cd\u590d\u8bb0\u5f55\u6216\u6570\u636e\u4e22\u5931\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\uff08Exactly-once Semantics\uff09<\/strong><\/h4>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u8bb0\u5f55\u53ea\u4f1a\u88ab\u5904\u7406\u4e00\u6b21\u3002\u5373\u4f7f\u751f\u4ea7\u8005\u53d1\u9001\u4e86\u91cd\u590d\u8bb0\u5f55\uff0c\u5b83\u4e5f\u4f1a\u88ab\u7cbe\u786e\u5730\u5199\u5165\u4e00\u6b21\u3002\u7cbe\u786e\u4e00\u6b21\u6d41\u5904\u7406\u786e\u4fdd <strong>\u8bfb\u53d6-\u5904\u7406-\u5199\u5165<\/strong> \u64cd\u4f5c\u53ea\u6267\u884c\u4e00\u6b21\u3002<\/p>\n\n\n\n<p><strong>\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u8bbe\u7f6e <code>processing.guarantee=\"exactly_once_v2\"<\/code> \u542f\u7528\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u3002<\/li>\n\n\n\n<li>\u751f\u4ea7\u8005\u914d\u7f6e\u4e3a\u5e42\u7b49\u5199\u5165\uff0c\u786e\u4fdd\u91cd\u8bd5\u4e0d\u4f1a\u5bfc\u81f4\u91cd\u590d\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li>\u591a\u4e2a\u8bb0\u5f55\u88ab\u5206\u7ec4\u5230\u5355\u4e2a\u4e8b\u52a1\u4e2d\uff0c\u8981\u4e48\u5168\u90e8\u63d0\u4ea4\uff0c\u8981\u4e48\u5168\u90e8\u56de\u6eda\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5b9e\u73b0\u673a\u5236<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u52a1\u6027\u5199\u5165<\/strong>\uff1a\u5199\u5165\u64cd\u4f5c\u5728\u786e\u8ba4\u6210\u529f\u540e\u624d\u88ab\u89c6\u4e3a\u5b8c\u6210\uff0c\u63d0\u4ea4\u64cd\u4f5c\u7528\u4e8e\u201c\u6700\u7ec8\u5316\u201d\u5199\u5165\u3002<\/li>\n\n\n\n<li><strong>\u6d88\u8d39\u8005\u4f4d\u7f6e\u7ba1\u7406<\/strong>\uff1a\u6d88\u8d39\u8005\u7684\u4f4d\u7f6e\uff08offset\uff09\u4f5c\u4e3a\u8bb0\u5f55\u5b58\u50a8\u5728\u4e3b\u9898\u4e2d\u3002\u5728\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u4e0b\uff0c\u5355\u4e2a\u4e8b\u52a1\u4f1a\u540c\u65f6\u5199\u5165\u504f\u79fb\u91cf\u548c\u5904\u7406\u540e\u7684\u6570\u636e\u5230\u8f93\u51fa\u4e3b\u9898\u3002<\/li>\n\n\n\n<li><strong>\u9694\u79bb\u7ea7\u522b<\/strong>\uff1a<\/li>\n\n\n\n<li><code>read_uncommitted<\/code>\uff08\u9ed8\u8ba4\uff09\uff1a\u6d88\u8d39\u8005\u53ef\u4ee5\u770b\u5230\u6240\u6709\u8bb0\u5f55\uff0c\u5305\u62ec\u672a\u63d0\u4ea4\u7684\u4e8b\u52a1\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li><code>read_committed<\/code>\uff1a\u6d88\u8d39\u8005\u53ea\u80fd\u770b\u5230\u5df2\u63d0\u4ea4\u4e8b\u52a1\u7684\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u9002\u7528\u573a\u666f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9002\u7528\u4e8e\u5bf9\u6570\u636e\u4e00\u81f4\u6027\u8981\u6c42\u6781\u9ad8\u7684\u573a\u666f\uff0c\u5982\u91d1\u878d\u4ea4\u6613\u3001\u6b3a\u8bc8\u68c0\u6d4b\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u72b6\u6001\u64cd\u4f5c\u4e2d\u7684\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49<\/h3>\n\n\n\n<p><strong>\u95ee\u9898<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\u4e0b\uff0c\u72b6\u6001\u5b58\u50a8\u6301\u4e45\u5316\u3001\u6570\u636e\u751f\u4ea7\u548c\u63d0\u4ea4\u64cd\u4f5c\u662f\u72ec\u7acb\u4e14\u5f02\u6b65\u7684\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u72b6\u6001\u4e0d\u4e00\u81f4\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff0c\u53bb\u91cd\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u5b58\u50a8\u6d88\u606f\u4f46\u672a\u80fd\u5c06\u5176\u5199\u5165\u8f93\u51fa\u4e3b\u9898\uff0c\u91cd\u65b0\u5904\u7406\u65f6\u53ef\u80fd\u4f1a\u8df3\u8fc7\u91cd\u590d\u6d88\u606f\uff0c\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\uff0c\u5c06\u72b6\u6001\u5b58\u50a8\u6301\u4e45\u5316\u3001\u6570\u636e\u751f\u4ea7\u548c\u63d0\u4ea4\u64cd\u4f5c\u8026\u5408\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\uff0c\u786e\u4fdd\u5728\u91cd\u65b0\u5904\u7406\u65f6\u72b6\u6001\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bb0\u5f55\u4e0d\u4f1a\u4e22\u5931\uff0c\u4f46\u53ef\u80fd\u4f1a\u91cd\u590d\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u5bf9\u6570\u636e\u91cd\u590d\u4e0d\u654f\u611f\u7684\u573a\u666f\u3002<\/li>\n\n\n\n<li>\u9ed8\u8ba4\u542f\u7528\uff0c\u914d\u7f6e\u4e3a <code>processing.guarantee=\"at_least_once\"<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bb0\u5f55\u53ea\u4f1a\u88ab\u5904\u7406\u4e00\u6b21\uff0c\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u4e8b\u52a1\u6027\u5199\u5165\u548c\u5e42\u7b49\u751f\u4ea7\u8005\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e\u4e3a <code>processing.guarantee=\"exactly_once_v2\"<\/code>\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u5bf9\u6570\u636e\u4e00\u81f4\u6027\u8981\u6c42\u6781\u9ad8\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72b6\u6001\u64cd\u4f5c\u4e2d\u7684\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u72b6\u6001\u64cd\u4f5c\u4e2d\uff0c\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u53ef\u4ee5\u907f\u514d\u72b6\u6001\u4e0d\u4e00\u81f4\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u5c06\u72b6\u6001\u5b58\u50a8\u6301\u4e45\u5316\u3001\u6570\u636e\u751f\u4ea7\u548c\u63d0\u4ea4\u64cd\u4f5c\u8026\u5408\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6ce8\u610f\u4e8b\u9879<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u542f\u7528\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u65f6\uff0cConfluent Monitoring Interceptors \u65e0\u6cd5\u4e0e Confluent Control Center \u4e00\u8d77\u914d\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u5904\u7406\u4fdd\u8bc1\u673a\u5236\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u81f3\u5c11\u4e00\u6b21\u6216\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u3002<\/li>\n\n\n\n<li>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u901a\u8fc7\u4e8b\u52a1\u6027\u5199\u5165\u548c\u5e42\u7b49\u751f\u4ea7\u8005\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u5904\u7406\u7684\u5f3a\u4e00\u81f4\u6027\uff0c\u9002\u7528\u4e8e\u5bf9\u6570\u636e\u51c6\u786e\u6027\u8981\u6c42\u6781\u9ad8\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Out-of-Order-Handling<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e71\u5e8f\u6570\u636e\u5904\u7406\uff08Out-of-Order Handling\uff09<\/h3>\n\n\n\n<p>\u5728\u6d41\u5904\u7406\u4e2d\uff0c\u4e71\u5e8f\u6570\u636e\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u6311\u6218\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u4e1a\u52a1\u903b\u8f91\u7684\u6b63\u786e\u6027\u3002Kafka Streams \u63d0\u4f9b\u4e86\u673a\u5236\u6765\u5904\u7406\u4e71\u5e8f\u6570\u636e\uff0c\u4ee5\u4e0b\u662f\u76f8\u5173\u5185\u5bb9\u7684\u603b\u7ed3\uff1a<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u4e71\u5e8f\u6570\u636e\u7684\u539f\u56e0<\/strong><\/h4>\n\n\n\n<p>\u5728 Kafka Streams \u4e2d\uff0c\u4e71\u5e8f\u6570\u636e\u53ef\u80fd\u7531\u4ee5\u4e0b\u4e24\u79cd\u539f\u56e0\u5bfc\u81f4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5206\u533a\u5185\u7684\u4e71\u5e8f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u540c\u4e00\u4e2a\u4e3b\u9898\u5206\u533a\u4e2d\uff0c\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u53ef\u80fd\u4e0d\u4f1a\u968f\u504f\u79fb\u91cf\uff08offset\uff09\u5355\u8c03\u9012\u589e\u3002<\/li>\n\n\n\n<li>Kafka Streams \u6309\u7167\u504f\u79fb\u91cf\u987a\u5e8f\u5904\u7406\u8bb0\u5f55\uff0c\u56e0\u6b64\u53ef\u80fd\u4f1a\u5bfc\u81f4\u65f6\u95f4\u6233\u8f83\u5927\u7684\u8bb0\u5f55\uff08\u4f46\u504f\u79fb\u91cf\u8f83\u5c0f\uff09\u5148\u4e8e\u65f6\u95f4\u6233\u8f83\u5c0f\u7684\u8bb0\u5f55\uff08\u4f46\u504f\u79fb\u91cf\u8f83\u5927\uff09\u88ab\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u591a\u5206\u533a\u5904\u7406\u7684\u4e71\u5e8f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4e00\u4e2a\u6d41\u4efb\u52a1\u5904\u7406\u591a\u4e2a\u4e3b\u9898\u5206\u533a\uff0c\u5e76\u4e14\u5e94\u7528\u7a0b\u5e8f\u672a\u914d\u7f6e\u4e3a\u7b49\u5f85\u6240\u6709\u5206\u533a\u90fd\u6709\u7f13\u51b2\u6570\u636e\uff0c\u5219\u53ef\u80fd\u4f1a\u4ece\u65f6\u95f4\u6233\u6700\u5c0f\u7684\u5206\u533a\u4e2d\u9009\u53d6\u8bb0\u5f55\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u8fd9\u53ef\u80fd\u5bfc\u81f4\u4ece\u5176\u4ed6\u5206\u533a\u83b7\u53d6\u7684\u8bb0\u5f55\u65f6\u95f4\u6233\u6bd4\u5df2\u5904\u7406\u7684\u8bb0\u5f55\u66f4\u5c0f\uff0c\u4ece\u800c\u4f7f\u5f97\u8f83\u65e7\u7684\u8bb0\u5f55\u5728\u8f83\u65b0\u7684\u8bb0\u5f55\u4e4b\u540e\u88ab\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u4e71\u5e8f\u6570\u636e\u7684\u5f71\u54cd<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65e0\u72b6\u6001\u64cd\u4f5c<\/strong>\uff1a<\/li>\n\n\n\n<li>\u4e71\u5e8f\u6570\u636e\u4e0d\u4f1a\u5f71\u54cd\u5904\u7406\u903b\u8f91\uff0c\u56e0\u4e3a\u65e0\u72b6\u6001\u64cd\u4f5c\u6bcf\u6b21\u53ea\u8003\u8651\u4e00\u6761\u8bb0\u5f55\uff0c\u4e0d\u4f9d\u8d56\u4e8e\u5386\u53f2\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li><strong>\u6709\u72b6\u6001\u64cd\u4f5c<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u805a\u5408\uff08aggregations\uff09\u548c\u8fde\u63a5\uff08joins\uff09\u7b49\u6709\u72b6\u6001\u64cd\u4f5c\uff0c\u4e71\u5e8f\u6570\u636e\u53ef\u80fd\u5bfc\u81f4\u5904\u7406\u903b\u8f91\u9519\u8bef\u3002<\/li>\n\n\n\n<li>\u4e3a\u4e86\u5904\u7406\u4e71\u5e8f\u6570\u636e\uff0c\u901a\u5e38\u9700\u8981\u8ba9\u5e94\u7528\u7a0b\u5e8f\u7b49\u5f85\u66f4\u957f\u65f6\u95f4\uff0c\u5e76\u5728\u7b49\u5f85\u671f\u95f4\u7ef4\u62a4\u72b6\u6001\uff0c\u8fd9\u9700\u8981\u5728\u5ef6\u8fdf\u3001\u6210\u672c\u548c\u6b63\u786e\u6027\u4e4b\u95f4\u505a\u51fa\u6743\u8861\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u4e71\u5e8f\u6570\u636e\u7684\u5904\u7406\u673a\u5236<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7a97\u53e3\u5316\u64cd\u4f5c<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5728 Kafka Streams \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u7a97\u53e3\u5316\u64cd\u4f5c\uff08\u5982\u7a97\u53e3\u805a\u5408\uff09\u6765\u5904\u7406\u4e71\u5e8f\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u7a97\u53e3\u5316\u64cd\u4f5c\u53ef\u4ee5\u8bbe\u7f6e\u5bbd\u9650\u671f\uff08grace period\uff09\uff0c\u5141\u8bb8\u5728\u7a97\u53e3\u5173\u95ed\u540e\u4e00\u6bb5\u65f6\u95f4\u5185\u5904\u7406\u4e71\u5e8f\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8bb0\u5f55\u5728\u5bbd\u9650\u671f\u4e4b\u540e\u5230\u8fbe\uff08\u5373 <code>record.ts > window-end-time + grace-period<\/code>\uff09\uff0c\u5219\u88ab\u89c6\u4e3a\u201c\u8fdf\u5230\u8bb0\u5f55\u201d\u5e76\u88ab\u4e22\u5f03\u3002<\/li>\n\n\n\n<li><strong>\u672f\u8bed\u5b9a\u4e49<\/strong>\uff1a<\/li>\n\n\n\n<li><strong>\u987a\u5e8f\uff08Order\uff09<\/strong>\uff1a\u5728 Kafka Streams \u4e2d\uff0c\u9ed8\u8ba4\u6307\u201c\u65f6\u95f4\u6233\u987a\u5e8f\u201d\uff08timestamp order\uff09\uff0c\u800c\u4e0d\u662f\u504f\u79fb\u91cf\u987a\u5e8f\uff08offset order\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4e71\u5e8f\uff08Out-of-order\uff09<\/strong>\uff1a\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u4e0d\u6309\u6d41\u65f6\u95f4\u5355\u8c03\u9012\u589e\u3002\u5bf9\u4e8e\u7a97\u53e3\u5316\u64cd\u4f5c\uff0c\u5904\u7406\u4e71\u5e8f\u6570\u636e\u9700\u8981\u8bbe\u7f6e\u5bbd\u9650\u671f\u3002<\/li>\n\n\n\n<li><strong>\u8fdf\u5230\u8bb0\u5f55\uff08Late\uff09<\/strong>\uff1a\u5728\u7a97\u53e3\u5173\u95ed\u540e\u5230\u8fbe\u7684\u8bb0\u5f55\uff08\u5373\u8d85\u8fc7\u7a97\u53e3\u7ed3\u675f\u65f6\u95f4\u52a0\u5bbd\u9650\u671f\uff09\u3002\u8fd9\u4e9b\u8bb0\u5f55\u4f1a\u88ab\u4e22\u5f03\uff0c\u4f46\u53ef\u80fd\u4ecd\u4f1a\u88ab\u5176\u4ed6\u64cd\u4f5c\u7b26\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u5ef6\u8fdf\u5ea6\u91cf<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u4ee5\u4f7f\u7528 <code>record-lateness<\/code> \u6307\u6807\u6765\u6d4b\u91cf\u4efb\u52a1\u7684\u5e73\u5747\u548c\u6700\u5927\u5ef6\u8fdf\uff0c\u4ee5\u76d1\u63a7\u4e71\u5e8f\u6570\u636e\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e71\u5e8f\u6570\u636e\u7684\u539f\u56e0<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5206\u533a\u5185\u65f6\u95f4\u6233\u4e0d\u5355\u8c03\u9012\u589e\u3002<\/li>\n\n\n\n<li>\u591a\u5206\u533a\u5904\u7406\u65f6\u672a\u7b49\u5f85\u6240\u6709\u5206\u533a\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e71\u5e8f\u6570\u636e\u7684\u5f71\u54cd<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u65e0\u72b6\u6001\u64cd\u4f5c\u65e0\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u5bf9\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u548c\u8fde\u63a5\uff09\u53ef\u80fd\u5bfc\u81f4\u903b\u8f91\u9519\u8bef\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5904\u7406\u673a\u5236<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u7a97\u53e3\u5316\u64cd\u4f5c\u548c\u5bbd\u9650\u671f\u5904\u7406\u4e71\u5e8f\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u8fdf\u5230\u8bb0\u5f55\u4f1a\u88ab\u4e22\u5f03\uff0c\u4f46\u53ef\u80fd\u88ab\u5176\u4ed6\u64cd\u4f5c\u7b26\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u672f\u8bed\u5b9a\u4e49<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u987a\u5e8f<\/strong>\uff1a\u9ed8\u8ba4\u6307\u65f6\u95f4\u6233\u987a\u5e8f\u3002<\/li>\n\n\n\n<li><strong>\u4e71\u5e8f<\/strong>\uff1a\u8bb0\u5f55\u65f6\u95f4\u6233\u4e0d\u6309\u6d41\u65f6\u95f4\u5355\u8c03\u9012\u589e\u3002<\/li>\n\n\n\n<li><strong>\u8fdf\u5230\u8bb0\u5f55<\/strong>\uff1a\u8d85\u8fc7\u7a97\u53e3\u5173\u95ed\u65f6\u95f4\u52a0\u5bbd\u9650\u671f\u7684\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u76d1\u63a7<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528 <code>record-lateness<\/code> \u6307\u6807\u76d1\u63a7\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u673a\u5236\u6765\u5904\u7406\u4e71\u5e8f\u6570\u636e\uff0c\u7279\u522b\u662f\u5728\u6709\u72b6\u6001\u64cd\u4f5c\u4e2d\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u7a97\u53e3\u5316\u64cd\u4f5c\u548c\u5bbd\u9650\u671f\uff0c\u53ef\u4ee5\u5728\u5ef6\u8fdf\u3001\u6210\u672c\u548c\u6b63\u786e\u6027\u4e4b\u95f4\u627e\u5230\u5e73\u8861\uff0c\u786e\u4fdd\u4e1a\u52a1\u903b\u8f91\u7684\u6b63\u786e\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Architecture<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">kafka\u751f\u4ea7\u6d88\u8d39\u67b6\u6784<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-6-1024x777.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"777\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-6-1024x777.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-467\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Processor Topology<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5904\u7406\u5668\u62d3\u6251\uff08Processor Topology\uff09<br><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-7.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1004\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-7.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-468\" style=\"width:521px;height:auto\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u5b9a\u4e49<\/strong>\uff1a\u5904\u7406\u5668\u62d3\u6251\uff08\u6216\u7b80\u79f0\u62d3\u6251\uff09\u5b9a\u4e49\u4e86\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u8ba1\u7b97\u903b\u8f91\uff0c\u5373\u5982\u4f55\u5c06\u8f93\u5165\u6570\u636e\u8f6c\u6362\u4e3a\u8f93\u51fa\u6570\u636e\u3002\u62d3\u6251\u662f\u7531\u6d41\u5904\u7406\u5668\uff08\u8282\u70b9\uff09\u548c\u6d41\uff08\u8fb9\uff09\u6216\u5171\u4eab\u72b6\u6001\u5b58\u50a8\u7ec4\u6210\u7684\u56fe\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1.&nbsp;<strong>\u62d3\u6251\u7684\u7ec4\u6210<\/strong><\/h4>\n\n\n\n<p>\u62d3\u6251\u7531\u4ee5\u4e0b\u6838\u5fc3\u7ec4\u4ef6\u6784\u6210\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6d41\u5904\u7406\u5668\uff08Stream Processor\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u62d3\u6251\u4e2d\u7684\u8282\u70b9\uff0c\u8d1f\u8d23\u5904\u7406\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u6d41\u5904\u7406\u5668\u53ef\u4ee5\u6267\u884c\u65e0\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u6620\u5c04\u3001\u8fc7\u6ee4\uff09\u6216\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u3001\u8fde\u63a5\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6d41\uff08Stream\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u62d3\u6251\u4e2d\u7684\u8fb9\uff0c\u8868\u793a\u6570\u636e\u5728\u5904\u7406\u5668\u4e4b\u95f4\u7684\u6d41\u52a8\u3002<\/li>\n\n\n\n<li>\u6d41\u662f Kafka \u4e3b\u9898\u4e2d\u8bb0\u5f55\u7684\u62bd\u8c61\u8868\u793a\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5171\u4eab\u72b6\u6001\u5b58\u50a8\uff08State Store\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e8e\u5b58\u50a8\u6709\u72b6\u6001\u64cd\u4f5c\u7684\u4e2d\u95f4\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u53ef\u4ee5\u662f\u672c\u5730\u7684\uff08\u5185\u5b58\u6216\u78c1\u76d8\uff09\u6216\u6301\u4e45\u5316\u7684\uff08\u5982 Kafka \u6216\u5916\u90e8\u6570\u636e\u5e93\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2.&nbsp;<strong>\u7279\u6b8a\u5904\u7406\u5668<\/strong><\/h4>\n\n\n\n<p>\u62d3\u6251\u4e2d\u6709\u4e24\u79cd\u7279\u6b8a\u7684\u5904\u7406\u5668\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6e90\u5904\u7406\u5668\uff08Source Processor\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4e00\u79cd\u6ca1\u6709\u4e0a\u6e38\u5904\u7406\u5668\u7684\u7279\u6b8a\u6d41\u5904\u7406\u5668\u3002<\/li>\n\n\n\n<li>\u4ece Kafka \u4e3b\u9898\u4e2d\u6d88\u8d39\u8bb0\u5f55\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u8f93\u5165\u6d41\u4f20\u9012\u7ed9\u4e0b\u6e38\u5904\u7406\u5668\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u4ece Kafka \u4e3b\u9898\u00a0<code>input-topic<\/code>\u00a0\u4e2d\u8bfb\u53d6\u6570\u636e\u5e76\u4f20\u9012\u7ed9\u4e0b\u6e38\u7684\u6620\u5c04\u5904\u7406\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>** sink \u5904\u7406\u5668\uff08Sink Processor\uff09**\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4e00\u79cd\u6ca1\u6709\u4e0b\u6e38\u5904\u7406\u5668\u7684\u7279\u6b8a\u6d41\u5904\u7406\u5668\u3002<\/li>\n\n\n\n<li>\u5c06\u63a5\u6536\u5230\u7684\u8bb0\u5f55\u53d1\u9001\u5230\u6307\u5b9a\u7684 Kafka \u4e3b\u9898\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u5c06\u5904\u7406\u540e\u7684\u8bb0\u5f55\u5199\u5165 Kafka \u4e3b\u9898\u00a0<code>output-topic<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3.&nbsp;<strong>\u62d3\u6251\u7684\u6784\u5efa<\/strong><\/h4>\n\n\n\n<p>\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u6216\u591a\u4e2a\u62d3\u6251\uff0c\u4f46\u901a\u5e38\u53ea\u5b9a\u4e49\u4e00\u4e2a\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\u5b9a\u4e49\u62d3\u6251\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f4e\u7ea7 Processor API<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u81ea\u5b9a\u4e49\u5904\u7406\u903b\u8f91\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u5ea6\u5b9a\u5236\u5316\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Kafka Streams DSL<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u57fa\u4e8e Processor API \u6784\u5efa\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7ea7\u7684\u62bd\u8c61\u548c\u6613\u7528\u6027\u3002<\/li>\n\n\n\n<li>\u9002\u7528\u4e8e\u5927\u591a\u6570\u5e38\u89c1\u6d41\u5904\u7406\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4.&nbsp;<strong>\u62d3\u6251\u7684\u793a\u4f8b<\/strong><\/h4>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u62d3\u6251\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6e90\u5904\u7406\u5668<\/strong>\uff1a\u4ece Kafka \u4e3b\u9898\u00a0<code>input-topic<\/code>\u00a0\u4e2d\u8bfb\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u6620\u5c04\u5904\u7406\u5668<\/strong>\uff1a\u5c06\u6bcf\u6761\u8bb0\u5f55\u7684\u503c\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/li>\n\n\n\n<li><strong>\u8fc7\u6ee4\u5904\u7406\u5668<\/strong>\uff1a\u8fc7\u6ee4\u6389\u503c\u4e3a\u7a7a\u7684\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li><strong>Sink \u5904\u7406\u5668<\/strong>\uff1a\u5c06\u5904\u7406\u540e\u7684\u8bb0\u5f55\u5199\u5165 Kafka \u4e3b\u9898\u00a0<code>output-topic<\/code>\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>\u7528 Kafka Streams DSL \u5b9e\u73b0\u7684\u4f2a\u4ee3\u7801\uff1a<\/code><\/pre>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<pre class=\"wp-block-code\"><code>java<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\u590d\u5236<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">KStream&lt;String, String&gt; stream = builder.stream(\"input-topic\");\nstream.mapValues(value -&gt; value.toUpperCase())\n      .filter((key, value) -&gt; !value.isEmpty())\n      .to(\"output-topic\");<\/pre>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u62d3\u6251\u7684\u4f5c\u7528<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u8ba1\u7b97\u903b\u8f91\uff0c\u63cf\u8ff0\u6570\u636e\u5982\u4f55\u4ece\u8f93\u5165\u8f6c\u6362\u4e3a\u8f93\u51fa\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6838\u5fc3\u7ec4\u4ef6<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u6d41\u5904\u7406\u5668<\/strong>\uff1a\u6267\u884c\u6570\u636e\u5904\u7406\u903b\u8f91\u3002<\/li>\n\n\n\n<li><strong>\u6d41<\/strong>\uff1a\u8868\u793a\u6570\u636e\u5728\u5904\u7406\u5668\u4e4b\u95f4\u7684\u6d41\u52a8\u3002<\/li>\n\n\n\n<li><strong>\u5171\u4eab\u72b6\u6001\u5b58\u50a8<\/strong>\uff1a\u5b58\u50a8\u6709\u72b6\u6001\u64cd\u4f5c\u7684\u4e2d\u95f4\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7279\u6b8a\u5904\u7406\u5668<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u6e90\u5904\u7406\u5668<\/strong>\uff1a\u4ece Kafka \u4e3b\u9898\u4e2d\u8bfb\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>Sink \u5904\u7406\u5668<\/strong>\uff1a\u5c06\u6570\u636e\u5199\u5165 Kafka \u4e3b\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6784\u5efa\u65b9\u5f0f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>Processor API<\/strong>\uff1a\u63d0\u4f9b\u7ec6\u7c92\u5ea6\u63a7\u5236\uff0c\u9002\u7528\u4e8e\u5b9a\u5236\u5316\u573a\u666f\u3002<\/li>\n\n\n\n<li><strong>Kafka Streams DSL<\/strong>\uff1a\u63d0\u4f9b\u9ad8\u7ea7\u62bd\u8c61\uff0c\u9002\u7528\u4e8e\u5e38\u89c1\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u793a\u4f8b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7 Kafka Streams DSL \u53ef\u4ee5\u8f7b\u677e\u6784\u5efa\u4e00\u4e2a\u5305\u542b\u6620\u5c04\u3001\u8fc7\u6ee4\u548c\u8f93\u51fa\u7684\u62d3\u6251\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5904\u7406\u5668\u62d3\u6251\u662f Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\uff0c\u5b9a\u4e49\u4e86\u6570\u636e\u5904\u7406\u7684\u6d41\u7a0b\u548c\u903b\u8f91\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u62d3\u6251\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u3001\u7075\u6d3b\u7684\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Parallelism Model<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-8.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"869\" height=\"671\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-8.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-469\"  sizes=\"auto, (max-width: 869px) 100vw, 869px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e76\u884c\u6a21\u578b\uff08Parallelism Model\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u7684\u5e76\u884c\u6a21\u578b\u57fa\u4e8e <strong>\u6d41\u5206\u533a\uff08Stream Partitions\uff09<\/strong> \u548c <strong>\u6d41\u4efb\u52a1\uff08Stream Tasks\uff09<\/strong>\uff0c\u8fd9\u4e9b\u6982\u5ff5\u4e0e Kafka \u7684\u5206\u533a\u6a21\u578b\u7d27\u5bc6\u76f8\u5173\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5e76\u884c\u6a21\u578b\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u6d41\u5206\u533a\u4e0e\u6d41\u4efb\u52a1<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6d41\u5206\u533a\uff08Stream Partitions\uff09<\/strong>\uff1a<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u6d41\u5206\u533a\u662f\u4e00\u4e2a\u5b8c\u5168\u6709\u5e8f\u7684\u6570\u636e\u8bb0\u5f55\u5e8f\u5217\uff0c\u5bf9\u5e94 Kafka \u4e3b\u9898\u7684\u4e00\u4e2a\u5206\u533a\u3002<\/li>\n\n\n\n<li>\u6d41\u4e2d\u7684\u6570\u636e\u8bb0\u5f55\u5bf9\u5e94 Kafka \u4e3b\u9898\u4e2d\u7684\u6d88\u606f\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u8bb0\u5f55\u7684\u952e\uff08Key\uff09\u51b3\u5b9a\u4e86\u6570\u636e\u5728 Kafka \u548c Kafka Streams \u4e2d\u7684\u5206\u533a\u65b9\u5f0f\uff0c\u5373\u6570\u636e\u5982\u4f55\u8def\u7531\u5230\u7279\u5b9a\u5206\u533a\u3002<\/li>\n\n\n\n<li><strong>\u6d41\u4efb\u52a1\uff08Stream Tasks\uff09<\/strong>\uff1a<\/li>\n\n\n\n<li>\u6d41\u4efb\u52a1\u662f Kafka Streams \u5e76\u884c\u5904\u7406\u7684\u57fa\u672c\u5355\u4f4d\u3002<\/li>\n\n\n\n<li>Kafka Streams \u6839\u636e\u8f93\u5165\u6d41\u7684\u5206\u533a\u6570\u91cf\u521b\u5efa\u56fa\u5b9a\u6570\u91cf\u7684\u6d41\u4efb\u52a1\uff0c\u6bcf\u4e2a\u4efb\u52a1\u5206\u914d\u4e00\u7ec4\u8f93\u5165\u6d41\u5206\u533a\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u4efb\u52a1\u72ec\u7acb\u5904\u7406\u5206\u914d\u7ed9\u5b83\u7684\u5206\u533a\uff0c\u7ef4\u62a4\u6bcf\u4e2a\u5206\u533a\u7684\u7f13\u51b2\u533a\uff0c\u5e76\u9010\u6761\u5904\u7406\u8bb0\u5f55\u3002<\/li>\n\n\n\n<li>\u6d41\u4efb\u52a1\u7684\u5206\u914d\u662f\u56fa\u5b9a\u7684\uff0c\u56e0\u6b64\u6d41\u4efb\u52a1\u662f\u5e94\u7528\u7a0b\u5e8f\u7684\u56fa\u5b9a\u5e76\u884c\u5355\u5143\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5e76\u884c\u5ea6<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e94\u7528\u7a0b\u5e8f\u7684\u6700\u5927\u5e76\u884c\u5ea6\u53d7\u9650\u4e8e\u8f93\u5165\u4e3b\u9898\u7684\u5206\u533a\u6570\u91cf\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff0c\u5982\u679c\u8f93\u5165\u4e3b\u9898\u6709 5 \u4e2a\u5206\u533a\uff0c\u5219\u6700\u591a\u53ef\u4ee5\u8fd0\u884c 5 \u4e2a\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u3002\u5982\u679c\u8fd0\u884c\u66f4\u591a\u5b9e\u4f8b\uff0c\u591a\u4f59\u7684\u5b9e\u4f8b\u5c06\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u4f46\u53ef\u4ee5\u5728\u5176\u4ed6\u5b9e\u4f8b\u6545\u969c\u65f6\u63a5\u7ba1\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u5b50\u62d3\u6251\uff08Sub-topologies\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u5b9a\u4e49\u4e86\u591a\u4e2a\u5904\u7406\u5668\u62d3\u6251\uff0c\u6bcf\u4e2a\u4efb\u52a1\u53ea\u4f1a\u5b9e\u4f8b\u5316\u5176\u4e2d\u4e00\u4e2a\u62d3\u6251\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u5355\u4e2a\u5904\u7406\u5668\u62d3\u6251\u53ef\u4ee5\u5206\u89e3\u4e3a\u591a\u4e2a\u72ec\u7acb\u7684\u5b50\u62d3\u6251\uff08\u6216\u5b50\u56fe\uff09\u3002<\/li>\n\n\n\n<li>\u5b50\u62d3\u6251\u662f\u4e00\u7ec4\u901a\u8fc7\u7236\u5b50\u5173\u7cfb\u6216\u72b6\u6001\u5b58\u50a8\u8fde\u63a5\u7684\u5904\u7406\u5668\uff0c\u4e0d\u540c\u5b50\u62d3\u6251\u901a\u8fc7 Kafka \u4e3b\u9898\u4ea4\u6362\u6570\u636e\uff0c\u4e0d\u5171\u4eab\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u4efb\u52a1\u53ea\u80fd\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5b50\u62d3\u6251\u8fdb\u884c\u5904\u7406\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u6269\u5c55\u8ba1\u7b97\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u7ebf\u7a0b\u6a21\u578b\uff08Threading Model\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5141\u8bb8\u7528\u6237\u914d\u7f6e\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u4e2d\u7528\u4e8e\u5e76\u884c\u5904\u7406\u7684\u7ebf\u7a0b\u6570\u91cf\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u72ec\u7acb\u6267\u884c\u4e00\u4e2a\u6216\u591a\u4e2a\u6d41\u4efb\u52a1\u53ca\u5176\u5904\u7406\u5668\u62d3\u6251\u3002<\/li>\n\n\n\n<li>\u542f\u52a8\u66f4\u591a\u7ebf\u7a0b\u6216\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u76f8\u5f53\u4e8e\u590d\u5236\u62d3\u6251\u5e76\u5904\u7406\u4e0d\u540c\u7684 Kafka \u5206\u533a\u5b50\u96c6\uff0c\u4ece\u800c\u5b9e\u73b0\u5e76\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u4e4b\u95f4\u6ca1\u6709\u5171\u4eab\u72b6\u6001\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u7ebf\u7a0b\u95f4\u534f\u8c03\uff0c\u7b80\u5316\u4e86\u5e76\u884c\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u52a8\u6001\u6269\u5c55<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ece Kafka 2.8 \u5f00\u59cb\uff0c\u53ef\u4ee5\u52a8\u6001\u6269\u5c55\u6d41\u7ebf\u7a0b\uff0c\u7c7b\u4f3c\u4e8e\u6269\u5c55 Kafka Streams \u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li>\u6dfb\u52a0\u6216\u5220\u9664\u6d41\u7ebf\u7a0b\u65f6\uff0cKafka Streams \u4f1a\u81ea\u52a8\u91cd\u65b0\u5206\u914d\u5206\u533a\u3002<\/li>\n\n\n\n<li>\u8fd8\u53ef\u4ee5\u6dfb\u52a0\u7ebf\u7a0b\u4ee5\u66ff\u6362\u6545\u969c\u7684\u6d41\u7ebf\u7a0b\uff0c\u800c\u65e0\u9700\u91cd\u542f\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u793a\u4f8b<\/strong><\/h4>\n\n\n\n<p>\u5047\u8bbe\u4e00\u4e2a Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u4ece\u4e24\u4e2a\u4e3b\u9898 A \u548c B \u6d88\u8d39\u6570\u636e\uff0c\u6bcf\u4e2a\u4e3b\u9898\u6709 3 \u4e2a\u5206\u533a\u3002\u5982\u679c\u5728\u4e00\u53f0\u673a\u5668\u4e0a\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\u5e76\u914d\u7f6e 2 \u4e2a\u7ebf\u7a0b\uff0cKafka Streams \u4f1a\u521b\u5efa 3 \u4e2a\u6d41\u4efb\u52a1\uff08\u56e0\u4e3a\u8f93\u5165\u4e3b\u9898\u7684\u6700\u5927\u5206\u533a\u6570\u4e3a 3\uff09\uff0c\u5e76\u5c06 6 \u4e2a\u8f93\u5165\u5206\u533a\u5747\u5300\u5206\u914d\u7ed9\u8fd9\u4e9b\u4efb\u52a1\u3002\u6700\u7ec8\uff0c\u8fd9 3 \u4e2a\u4efb\u52a1\u4f1a\u5747\u5300\u5206\u914d\u5230 2 \u4e2a\u7ebf\u7a0b\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u8fd0\u884c 2 \u4e2a\u4efb\u52a1\uff08\u5904\u7406 4 \u4e2a\u5206\u533a\uff09\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u8fd0\u884c 1 \u4e2a\u4efb\u52a1\uff08\u5904\u7406 2 \u4e2a\u5206\u533a\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u6269\u5c55\u5e94\u7528\u7a0b\u5e8f\u5e76\u5728\u53e6\u4e00\u53f0\u673a\u5668\u4e0a\u542f\u52a8\u4e00\u4e2a\u5355\u7ebf\u7a0b\u5b9e\u4f8b\uff0cKafka Streams \u4f1a\u91cd\u65b0\u5206\u914d\u5206\u533a\uff0c\u5c06\u90e8\u5206\u4efb\u52a1\uff08\u53ca\u5176\u672c\u5730\u72b6\u6001\u5b58\u50a8\uff09\u8fc1\u79fb\u5230\u65b0\u7ebf\u7a0b\u3002<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"659\" height=\"801\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-470\"  sizes=\"auto, (max-width: 659px) 100vw, 659px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6d41\u5206\u533a\u4e0e\u6d41\u4efb\u52a1<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d41\u5206\u533a\u5bf9\u5e94 Kafka \u4e3b\u9898\u5206\u533a\uff0c\u6d41\u4efb\u52a1\u662f\u5e76\u884c\u5904\u7406\u7684\u57fa\u672c\u5355\u4f4d\u3002<\/li>\n\n\n\n<li>\u5e94\u7528\u7a0b\u5e8f\u7684\u6700\u5927\u5e76\u884c\u5ea6\u53d7\u9650\u4e8e\u8f93\u5165\u4e3b\u9898\u7684\u5206\u533a\u6570\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b50\u62d3\u6251<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5355\u4e2a\u62d3\u6251\u53ef\u4ee5\u5206\u89e3\u4e3a\u591a\u4e2a\u5b50\u62d3\u6251\uff0c\u6bcf\u4e2a\u4efb\u52a1\u53ea\u5904\u7406\u4e00\u4e2a\u5b50\u62d3\u6251\u3002<\/li>\n\n\n\n<li>\u5b50\u62d3\u6251\u901a\u8fc7 Kafka \u4e3b\u9898\u4ea4\u6362\u6570\u636e\uff0c\u4e0d\u5171\u4eab\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7ebf\u7a0b\u6a21\u578b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u72ec\u7acb\u6267\u884c\u4e00\u4e2a\u6216\u591a\u4e2a\u6d41\u4efb\u52a1\u3002<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u4e4b\u95f4\u6ca1\u6709\u5171\u4eab\u72b6\u6001\uff0c\u7b80\u5316\u4e86\u5e76\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u52a8\u6001\u6269\u5c55\u6d41\u7ebf\u7a0b\uff0c\u65e0\u9700\u91cd\u542f\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6269\u5c55\u6027<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u589e\u52a0\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u6216\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u6269\u5c55\u5904\u7406\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u5206\u533a\u548c\u4efb\u52a1\u7684\u91cd\u65b0\u5206\u914d\u7531 Kafka Streams \u81ea\u52a8\u5904\u7406\uff0c\u786e\u4fdd\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u7684\u5e76\u884c\u6a21\u578b\u57fa\u4e8e Kafka \u7684\u5206\u533a\u673a\u5236\uff0c\u63d0\u4f9b\u4e86\u9ad8\u6269\u5c55\u6027\u548c\u5f39\u6027\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u6d41\u4efb\u52a1\u548c\u5b50\u62d3\u6251\u7684\u8bbe\u8ba1\uff0cKafka Streams \u80fd\u591f\u9ad8\u6548\u5730\u5e76\u884c\u5904\u7406\u6570\u636e\u6d41\u3002<\/li>\n\n\n\n<li>\u52a8\u6001\u6269\u5c55\u548c\u81ea\u52a8\u8d1f\u8f7d\u5747\u8861\u4f7f\u5f97 Kafka Streams \u975e\u5e38\u9002\u5408\u5927\u89c4\u6a21\u6d41\u5904\u7406\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">State<br><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-10.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"893\" height=\"696\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-10.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-471\"  sizes=\"auto, (max-width: 893px) 100vw, 893px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u72b6\u6001\uff08State\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u63d0\u4f9b\u4e86 <strong>\u72b6\u6001\u5b58\u50a8\uff08State Stores\uff09<\/strong>\uff0c\u7528\u4e8e\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u5b58\u50a8\u548c\u67e5\u8be2\u6570\u636e\u3002\u8fd9\u662f\u5b9e\u73b0\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u3001\u7a97\u53e3\u5316\u7b49\uff09\u7684\u91cd\u8981\u80fd\u529b\u3002\u4ee5\u4e0b\u662f Kafka Streams \u72b6\u6001\u7ba1\u7406\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u72b6\u6001\u5b58\u50a8\uff08State Stores\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u662f Kafka Streams \u4e2d\u7528\u4e8e\u5b58\u50a8\u548c\u67e5\u8be2\u6570\u636e\u7684\u672c\u5730\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u6d41\u4efb\u52a1\u53ef\u4ee5\u5d4c\u5165\u4e00\u4e2a\u6216\u591a\u4e2a\u672c\u5730\u72b6\u6001\u5b58\u50a8\uff0c\u7528\u4e8e\u5b58\u50a8\u5904\u7406\u6240\u9700\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u53ef\u4ee5\u662f RocksDB \u6570\u636e\u5e93\u3001\u5185\u5b58\u54c8\u5e0c\u8868\u6216\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u3002<\/li>\n\n\n\n<li><strong>\u81ea\u52a8\u7ba1\u7406<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5f53\u8c03\u7528\u6709\u72b6\u6001\u64cd\u4f5c\u7b26\uff08\u5982 <code>count()<\/code>\u3001<code>aggregate()<\/code>\uff09\u6216\u5bf9\u6d41\u8fdb\u884c\u7a97\u53e3\u5316\u65f6\uff0cKafka Streams DSL \u4f1a\u81ea\u52a8\u521b\u5efa\u548c\u7ba1\u7406\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li><strong>\u5bb9\u9519\u4e0e\u6062\u590d<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka Streams \u4e3a\u672c\u5730\u72b6\u6001\u5b58\u50a8\u63d0\u4f9b\u4e86\u5bb9\u9519\u548c\u81ea\u52a8\u6062\u590d\u673a\u5236\uff0c\u786e\u4fdd\u5728\u6545\u969c\u60c5\u51b5\u4e0b\u6570\u636e\u4e0d\u4f1a\u4e22\u5931\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u72b6\u6001\u5b58\u50a8\u7684\u7c7b\u578b<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u672c\u5730\u72b6\u6001\u5b58\u50a8\uff08Local State Stores\uff09<\/strong>\uff1a<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u6d41\u4efb\u52a1\u7ef4\u62a4\u81ea\u5df1\u7684\u672c\u5730\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u53ef\u4ee5\u662f\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>RocksDB<\/strong>\uff1a\u57fa\u4e8e\u78c1\u76d8\u7684\u9ad8\u6027\u80fd\u952e\u503c\u5b58\u50a8\uff0c\u9002\u5408\u5927\u89c4\u6a21\u72b6\u6001\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u5185\u5b58\u54c8\u5e0c\u8868<\/strong>\uff1a\u9002\u5408\u5c0f\u89c4\u6a21\u72b6\u6001\u6570\u636e\uff0c\u8bbf\u95ee\u901f\u5ea6\u5feb\u3002<\/li>\n\n\n\n<li><strong>\u5176\u4ed6\u6570\u636e\u7ed3\u6784<\/strong>\uff1a\u6839\u636e\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5168\u5c40\u72b6\u6001\u5b58\u50a8\uff08Global State Stores\uff09<\/strong>\uff1a<\/li>\n\n\n\n<li>\u8de8\u591a\u4e2a\u4efb\u52a1\u6216\u5b9e\u4f8b\u5171\u4eab\u7684\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u901a\u5e38\u7528\u4e8e\u9700\u8981\u5168\u5c40\u8bbf\u95ee\u7684\u72b6\u6001\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u72b6\u6001\u5b58\u50a8\u7684\u5206\u5e03<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u5e94\u7528\u7a0b\u5e8f\u901a\u5e38\u8fd0\u884c\u5728\u591a\u4e2a\u5b9e\u4f8b\u4e0a\uff0c\u72b6\u6001\u6570\u636e\u5206\u5e03\u5728\u6240\u6709\u5b9e\u4f8b\u7684\u672c\u5730\u72b6\u6001\u5b58\u50a8\u4e2d\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u7684\u5206\u533a\u65b9\u5f0f\u4e0e Kafka \u4e3b\u9898\u7684\u5206\u533a\u65b9\u5f0f\u4e00\u81f4\uff0c\u786e\u4fdd\u6570\u636e\u5c40\u90e8\u6027\u548c\u9ad8\u6548\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u72b6\u6001\u5b58\u50a8\u7684\u8bbf\u95ee<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u672c\u5730\u8bbf\u95ee<\/strong>\uff1a<\/li>\n\n\n\n<li>\u901a\u8fc7 Kafka Streams API\uff0c\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u7ea7\u522b\u8bbf\u95ee\u672c\u5730\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff0c\u5728\u6d41\u4efb\u52a1\u4e2d\u76f4\u63a5\u67e5\u8be2\u6216\u66f4\u65b0\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li><strong>\u5168\u5c40\u8bbf\u95ee<\/strong>\uff1a<\/li>\n\n\n\n<li>\u901a\u8fc7 <strong>\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff08Interactive Queries\uff09<\/strong>\uff0c\u53ef\u4ee5\u5728\u903b\u8f91\u5e94\u7528\u7a0b\u5e8f\u7ea7\u522b\u8bbf\u95ee\u6574\u4e2a\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff0c\u67e5\u8be2\u6240\u6709\u5b9e\u4f8b\u7684\u72b6\u6001\u6570\u636e\u4ee5\u83b7\u53d6\u5168\u5c40\u805a\u5408\u7ed3\u679c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">5. <strong>\u72b6\u6001\u5b58\u50a8\u7684\u5e94\u7528\u573a\u666f<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6709\u72b6\u6001\u64cd\u4f5c<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5982\u8ba1\u6570\uff08<code>count()<\/code>\uff09\u3001\u805a\u5408\uff08<code>aggregate()<\/code>\uff09\u3001\u7a97\u53e3\u5316\uff08<code>window()<\/code>\uff09\u7b49\u64cd\u4f5c\u9700\u8981\u4f9d\u8d56\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li><strong>\u4ea4\u4e92\u5f0f\u67e5\u8be2<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5141\u8bb8\u5916\u90e8\u7cfb\u7edf\u6216\u7528\u6237\u5b9e\u65f6\u67e5\u8be2\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u3002<\/li>\n\n\n\n<li><strong>\u5bb9\u9519\u4e0e\u6062\u590d<\/strong>\uff1a<\/li>\n\n\n\n<li>\u72b6\u6001\u5b58\u50a8\u7684\u5bb9\u9519\u673a\u5236\u786e\u4fdd\u5728\u5b9e\u4f8b\u6545\u969c\u65f6\u80fd\u591f\u81ea\u52a8\u6062\u590d\u72b6\u6001\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72b6\u6001\u5b58\u50a8\u7684\u4f5c\u7528<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e8e\u5b58\u50a8\u548c\u67e5\u8be2\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u6570\u636e\uff0c\u652f\u6301\u6709\u72b6\u6001\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7c7b\u578b\u4e0e\u5b9e\u73b0<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u672c\u5730\u72b6\u6001\u5b58\u50a8\uff08\u5982 RocksDB\u3001\u5185\u5b58\u54c8\u5e0c\u8868\uff09\u548c\u5168\u5c40\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n\n\n\n<li>Kafka Streams \u81ea\u52a8\u7ba1\u7406\u72b6\u6001\u5b58\u50a8\u7684\u521b\u5efa\u548c\u7ef4\u62a4\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5206\u5e03\u4e0e\u8bbf\u95ee<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u72b6\u6001\u6570\u636e\u5206\u5e03\u5728\u591a\u4e2a\u5b9e\u4f8b\u7684\u672c\u5730\u72b6\u6001\u5b58\u50a8\u4e2d\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u672c\u5730\u8bbf\u95ee\u548c\u5168\u5c40\u8bbf\u95ee\uff08\u901a\u8fc7\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5bb9\u9519\u4e0e\u6062\u590d<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u63d0\u4f9b\u72b6\u6001\u5b58\u50a8\u7684\u5bb9\u9519\u548c\u81ea\u52a8\u6062\u590d\u673a\u5236\uff0c\u786e\u4fdd\u6570\u636e\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6709\u72b6\u6001\u64cd\u4f5c\uff08\u5982\u805a\u5408\u3001\u7a97\u53e3\u5316\uff09\u3002<\/li>\n\n\n\n<li>\u4ea4\u4e92\u5f0f\u67e5\u8be2\uff0c\u652f\u6301\u5b9e\u65f6\u72b6\u6001\u8bbf\u95ee\u3002<\/li>\n\n\n\n<li>\u5bb9\u9519\u4e0e\u6062\u590d\uff0c\u786e\u4fdd\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u7684\u72b6\u6001\u5b58\u50a8\u4e3a\u6d41\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u72b6\u6001\u7ba1\u7406\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u672c\u5730\u548c\u5168\u5c40\u72b6\u6001\u5b58\u50a8\uff0c\u652f\u6301\u9ad8\u6548\u7684\u6709\u72b6\u6001\u64cd\u4f5c\u548c\u5b9e\u65f6\u67e5\u8be2\u3002<\/li>\n\n\n\n<li>\u5bb9\u9519\u548c\u81ea\u52a8\u6062\u590d\u673a\u5236\u786e\u4fdd\u4e86\u72b6\u6001\u6570\u636e\u7684\u9ad8\u53ef\u9760\u6027\u548c\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Memory Management<br><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-11-1024x768.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-original=\"https:\/\/www.zackzzp.top\/wp-content\/uploads\/2025\/01\/image-11-1024x768.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-472\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u5b58\u7ba1\u7406\uff08Memory Management\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\uff0c\u5141\u8bb8\u7528\u6237\u4e3a\u5904\u7406\u62d3\u6251\u5b9e\u4f8b\u6307\u5b9a\u603b\u5185\u5b58\uff08RAM\uff09\u5927\u5c0f\u3002\u8fd9\u4e9b\u5185\u5b58\u7528\u4e8e\u5185\u90e8\u7f13\u5b58\u548c\u8bb0\u5f55\u538b\u7f29\uff0c\u4ee5\u63d0\u9ad8\u5904\u7406\u6548\u7387\u5e76\u51cf\u5c11\u5bf9\u72b6\u6001\u5b58\u50a8\u548c\u4e0b\u6e38\u8282\u70b9\u7684\u5199\u5165\u538b\u529b\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5185\u5b58\u7ba1\u7406\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u8bb0\u5f55\u7f13\u5b58\uff08Record Caches\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka Streams \u4f7f\u7528\u5185\u5b58\u7f13\u5b58\u6765\u4f18\u5316\u8bb0\u5f55\u7684\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u7f13\u5b58\u5185\u5b58\u5927\u5c0f\u7531\u7528\u6237\u914d\u7f6e\uff0c\u5e76\u5728\u62d3\u6251\u5b9e\u4f8b\u7684\u6240\u6709\u7ebf\u7a0b\u4e4b\u95f4\u5e73\u5747\u5206\u914d\u3002<\/li>\n\n\n\n<li><strong>\u7f13\u5b58\u7684\u529f\u80fd<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8bfb\u53d6\u7f13\u5b58<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u52a0\u901f\u4ece\u72b6\u6001\u5b58\u50a8\u4e2d\u8bfb\u53d6\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5199\u56de\u7f13\u5b58\uff08Write-back Buffer\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4f5c\u4e3a\u72b6\u6001\u5b58\u50a8\u7684\u5199\u56de\u7f13\u51b2\u533a\uff0c\u652f\u6301\u6279\u91cf\u5199\u5165\uff0c\u51cf\u5c11\u5bf9\u72b6\u6001\u5b58\u50a8\u7684\u8bf7\u6c42\u6b21\u6570\u3002<\/li>\n\n\n\n<li>\u5bf9\u5177\u6709\u76f8\u540c\u952e\u7684\u8bb0\u5f55\u8fdb\u884c\u538b\u7f29\uff0c\u51cf\u5c11\u5199\u5165\u91cf\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u51cf\u5c11\u4e0b\u6e38\u8bb0\u5f55<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u7f13\u5b58\u538b\u7f29\uff0c\u51cf\u5c11\u53d1\u9001\u5230\u4e0b\u6e38\u5904\u7406\u5668\u8282\u70b9\u7684\u8bb0\u5f55\u6570\u91cf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u7f13\u5b58\u7684\u914d\u7f6e\u4e0e\u6743\u8861<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u5927\u5c0f\u7684\u914d\u7f6e<\/strong>\uff1a<\/li>\n\n\n\n<li>\u7528\u6237\u53ef\u4ee5\u4e3a\u62d3\u6251\u5b9e\u4f8b\u6307\u5b9a\u603b\u7f13\u5b58\u5927\u5c0f\uff0c\u7f13\u5b58\u5185\u5b58\u5728\u6240\u6709\u7ebf\u7a0b\u4e4b\u95f4\u5171\u4eab\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u7ebf\u7a0b\u7ef4\u62a4\u4e00\u4e2a\u5185\u5b58\u6c60\uff0c\u4f9b\u5176\u4efb\u52a1\u7684\u5904\u7406\u8282\u70b9\u4f7f\u7528\u3002<\/li>\n\n\n\n<li><strong>\u7f13\u5b58\u5927\u5c0f\u7684\u6743\u8861<\/strong>\uff1a<\/li>\n\n\n\n<li><strong>\u8f83\u5c0f\u7684\u7f13\u5b58\u5927\u5c0f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4e0b\u6e38\u66f4\u65b0\u9891\u7387\u8f83\u9ad8\uff0c\u66f4\u65b0\u95f4\u9694\u8f83\u77ed\u3002<\/li>\n\n\n\n<li>\u9002\u5408\u9700\u8981\u4f4e\u5ef6\u8fdf\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8f83\u5927\u7684\u7f13\u5b58\u5927\u5c0f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4e0b\u6e38\u66f4\u65b0\u9891\u7387\u8f83\u4f4e\uff0c\u66f4\u65b0\u95f4\u9694\u8f83\u957f\u3002<\/li>\n\n\n\n<li>\u51cf\u5c11\u7f51\u7edc I\/O\uff08\u5982 Kafka\uff09\u548c\u672c\u5730\u78c1\u76d8 I\/O\uff08\u5982 RocksDB \u72b6\u6001\u5b58\u50a8\uff09\u3002<\/li>\n\n\n\n<li>\u9002\u5408\u9700\u8981\u9ad8\u541e\u5410\u91cf\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7f13\u5b58\u7684\u5f71\u54cd<\/strong>\uff1a<\/li>\n\n\n\n<li>\u65e0\u8bba\u7f13\u5b58\u5927\u5c0f\u5982\u4f55\uff08\u5305\u62ec\u7981\u7528\u7f13\u5b58\uff09\uff0c\u6700\u7ec8\u7684\u8ba1\u7b97\u7ed3\u679c\u90fd\u662f\u76f8\u540c\u7684\u3002<\/li>\n\n\n\n<li>\u7f13\u5b58\u662f\u5426\u542f\u7528\u662f\u5b89\u5168\u7684\uff0c\u4e0d\u4f1a\u5f71\u54cd\u7ed3\u679c\u7684\u6b63\u786e\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u7f13\u5b58\u7684\u884c\u4e3a<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u66f4\u65b0\u7684\u4e0d\u786e\u5b9a\u6027<\/strong>\uff1a<\/li>\n\n\n\n<li>\u65e0\u6cd5\u9884\u6d4b\u7f13\u5b58\u4f55\u65f6\u6216\u5982\u4f55\u538b\u7f29\u8bb0\u5f55\uff0c\u56e0\u4e3a\u8fd9\u53d6\u51b3\u4e8e\u591a\u79cd\u56e0\u7d20\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7f13\u5b58\u5927\u5c0f\u3002<\/li>\n\n\n\n<li>\u5904\u7406\u6570\u636e\u7684\u7279\u6027\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e\u53c2\u6570\uff08\u5982 <code>commit.interval.ms<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u7f13\u5b58\u7684\u5b9e\u73b0\u5dee\u5f02<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DSL \u4e0e Processor API<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5728 DSL \u548c Processor API \u4e2d\uff0c\u7f13\u5b58\u7684\u5b9e\u73b0\u7565\u6709\u4e0d\u540c\u3002<\/li>\n\n\n\n<li>DSL \u81ea\u52a8\u7ba1\u7406\u7f13\u5b58\uff0c\u800c Processor API \u63d0\u4f9b\u4e86\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u7684\u4f5c\u7528<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u52a0\u901f\u72b6\u6001\u5b58\u50a8\u7684\u8bfb\u53d6\u3002<\/li>\n\n\n\n<li>\u4f5c\u4e3a\u5199\u56de\u7f13\u51b2\u533a\uff0c\u51cf\u5c11\u5bf9\u72b6\u6001\u5b58\u50a8\u548c\u4e0b\u6e38\u8282\u70b9\u7684\u5199\u5165\u538b\u529b\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u538b\u7f29\u8bb0\u5f55\uff0c\u51cf\u5c11\u7f51\u7edc\u548c\u78c1\u76d8 I\/O\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u7684\u914d\u7f6e<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7528\u6237\u53ef\u4ee5\u4e3a\u62d3\u6251\u5b9e\u4f8b\u6307\u5b9a\u603b\u7f13\u5b58\u5927\u5c0f\uff0c\u7f13\u5b58\u5185\u5b58\u5728\u6240\u6709\u7ebf\u7a0b\u4e4b\u95f4\u5171\u4eab\u3002<\/li>\n\n\n\n<li>\u7f13\u5b58\u5927\u5c0f\u5f71\u54cd\u4e0b\u6e38\u66f4\u65b0\u7684\u9891\u7387\u548c\u95f4\u9694\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u7684\u6743\u8861<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8f83\u5c0f\u7684\u7f13\u5b58\uff1a\u4f4e\u5ef6\u8fdf\uff0c\u9ad8\u66f4\u65b0\u9891\u7387\u3002<\/li>\n\n\n\n<li>\u8f83\u5927\u7684\u7f13\u5b58\uff1a\u9ad8\u541e\u5410\u91cf\uff0c\u4f4e\u66f4\u65b0\u9891\u7387\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u7684\u5b89\u5168\u6027<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65e0\u8bba\u7f13\u5b58\u5927\u5c0f\u5982\u4f55\uff0c\u6700\u7ec8\u8ba1\u7b97\u7ed3\u679c\u4e00\u81f4\u3002<\/li>\n\n\n\n<li>\u542f\u7528\u6216\u7981\u7528\u7f13\u5b58\u662f\u5b89\u5168\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58\u7684\u884c\u4e3a<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f13\u5b58\u66f4\u65b0\u7684\u65f6\u95f4\u548c\u65b9\u5f0f\u53d6\u51b3\u4e8e\u7f13\u5b58\u5927\u5c0f\u3001\u6570\u636e\u7279\u6027\u548c\u914d\u7f6e\u53c2\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u901a\u8fc7\u8bb0\u5f55\u7f13\u5b58\u4f18\u5316\u4e86\u8bfb\u53d6\u548c\u5199\u5165\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u7075\u6d3b\u914d\u7f6e\u7f13\u5b58\u5927\u5c0f\uff0c\u5728\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u4e4b\u95f4\u627e\u5230\u6700\u4f73\u5e73\u8861\u3002<\/li>\n\n\n\n<li>\u7f13\u5b58\u7684\u4f7f\u7528\u662f\u900f\u660e\u7684\uff0c\u4e0d\u4f1a\u5f71\u54cd\u8ba1\u7b97\u7ed3\u679c\u7684\u6b63\u786e\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Fault Tolerance<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5bb9\u9519\u673a\u5236\uff08Fault Tolerance\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u57fa\u4e8e Kafka \u539f\u751f\u7684\u5bb9\u9519\u80fd\u529b\u6784\u5efa\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6545\u969c\u6062\u590d\u673a\u5236\uff0c\u786e\u4fdd\u5728\u5e94\u7528\u7a0b\u5e8f\u6216\u673a\u5668\u6545\u969c\u65f6\u80fd\u591f\u900f\u660e\u5730\u6062\u590d\u5904\u7406\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5bb9\u9519\u673a\u5236\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>Kafka \u7684\u5bb9\u9519\u80fd\u529b<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5206\u533a\u9ad8\u53ef\u7528\u6027<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka \u5206\u533a\u5177\u6709\u9ad8\u53ef\u7528\u6027\u548c\u526f\u672c\u673a\u5236\uff0c\u786e\u4fdd\u6570\u636e\u6301\u4e45\u5316\u540e\u5373\u4f7f\u5e94\u7528\u7a0b\u5e8f\u6545\u969c\u4e5f\u80fd\u91cd\u65b0\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>\u4efb\u52a1\u6545\u969c\u6062\u590d<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka Streams \u4efb\u52a1\u5229\u7528 Kafka \u6d88\u8d39\u8005\u5ba2\u6237\u7aef\u7684\u5bb9\u9519\u80fd\u529b\u5904\u7406\u6545\u969c\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4efb\u52a1\u8fd0\u884c\u7684\u673a\u5668\u53d1\u751f\u6545\u969c\uff0cKafka Streams \u4f1a\u81ea\u52a8\u5728\u5269\u4f59\u7684\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u4e2d\u91cd\u65b0\u542f\u52a8\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u672c\u5730\u72b6\u6001\u5b58\u50a8\u7684\u5bb9\u9519<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001\u5b58\u50a8\u7684\u6301\u4e45\u5316<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u6bcf\u4e2a\u72b6\u6001\u5b58\u50a8\uff0cKafka Streams \u7ef4\u62a4\u4e00\u4e2a\u590d\u5236\u7684 changelog Kafka \u4e3b\u9898\uff0c\u7528\u4e8e\u8ddf\u8e2a\u72b6\u6001\u66f4\u65b0\u3002<\/li>\n\n\n\n<li>Changelog \u4e3b\u9898\u4e5f\u662f\u5206\u533a\u7684\uff0c\u6bcf\u4e2a\u672c\u5730\u72b6\u6001\u5b58\u50a8\u5b9e\u4f8b\uff08\u4ee5\u53ca\u8bbf\u95ee\u8be5\u5b58\u50a8\u7684\u4efb\u52a1\uff09\u90fd\u6709\u81ea\u5df1\u4e13\u7528\u7684 changelog \u5206\u533a\u3002<\/li>\n\n\n\n<li><strong>\u65e5\u5fd7\u538b\u7f29<\/strong>\uff1a<\/li>\n\n\n\n<li>Changelog \u4e3b\u9898\u542f\u7528\u4e86\u65e5\u5fd7\u538b\u7f29\uff0c\u53ef\u4ee5\u5b89\u5168\u5730\u6e05\u9664\u65e7\u6570\u636e\uff0c\u9632\u6b62\u4e3b\u9898\u65e0\u9650\u589e\u957f\u3002<\/li>\n\n\n\n<li><strong>\u72b6\u6001\u6062\u590d<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5982\u679c\u4efb\u52a1\u5728\u6545\u969c\u673a\u5668\u4e0a\u8fd0\u884c\u5e76\u5728\u53e6\u4e00\u53f0\u673a\u5668\u4e0a\u91cd\u65b0\u542f\u52a8\uff0cKafka Streams \u4f1a\u901a\u8fc7\u91cd\u653e\u76f8\u5e94\u7684 changelog \u4e3b\u9898\u6765\u6062\u590d\u72b6\u6001\u5b58\u50a8\u7684\u5185\u5bb9\uff0c\u786e\u4fdd\u72b6\u6001\u4e0e\u6545\u969c\u524d\u4e00\u81f4\u3002<\/li>\n\n\n\n<li>\u6545\u969c\u5904\u7406\u5bf9\u6700\u7ec8\u7528\u6237\u5b8c\u5168\u900f\u660e\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u4f18\u5316\u4efb\u52a1\u6062\u590d<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5907\u7528\u526f\u672c\uff08Standby Replicas\uff09<\/strong>\uff1a<\/li>\n\n\n\n<li>\u4e3a\u4e86\u6700\u5c0f\u5316\u4efb\u52a1\u6062\u590d\u65f6\u95f4\uff0c\u53ef\u4ee5\u914d\u7f6e\u5e94\u7528\u7a0b\u5e8f\u7684\u672c\u5730\u72b6\u6001\u5907\u7528\u526f\u672c\u3002<\/li>\n\n\n\n<li>\u5907\u7528\u526f\u672c\u662f\u72b6\u6001\u7684\u5b8c\u5168\u590d\u5236\u526f\u672c\uff0c\u5f53\u4efb\u52a1\u8fc1\u79fb\u53d1\u751f\u65f6\uff0cKafka Streams \u4f1a\u5c06\u4efb\u52a1\u5206\u914d\u7ed9\u5df2\u5b58\u5728\u5907\u7528\u526f\u672c\u7684\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b\u3002<\/li>\n\n\n\n<li>\u4ece Kafka 2.6 \u5f00\u59cb\uff0cKafka Streams \u4fdd\u8bc1\u4efb\u52a1\u4f1a\u5206\u914d\u7ed9\u5177\u6709\u6700\u65b0\u672c\u5730\u72b6\u6001\u526f\u672c\u7684\u5b9e\u4f8b\uff08\u5982\u679c\u5b58\u5728\uff09\u3002<\/li>\n\n\n\n<li><strong>\u914d\u7f6e\u53c2\u6570<\/strong>\uff1a<\/li>\n\n\n\n<li>\u901a\u8fc7 <code>num.standby.replicas<\/code> \u914d\u7f6e\u5907\u7528\u526f\u672c\u7684\u6570\u91cf\u3002<\/li>\n\n\n\n<li>\u5907\u7528\u4efb\u52a1\u589e\u52a0\u4e86\u5728\u6545\u969c\u60c5\u51b5\u4e0b\u5b58\u5728\u6700\u65b0\u526f\u672c\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u673a\u67b6\u611f\u77e5\uff08Rack Awareness\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5907\u7528\u526f\u672c\u7684\u673a\u67b6\u611f\u77e5<\/strong>\uff1a<\/li>\n\n\n\n<li>\u53ef\u4ee5\u914d\u7f6e\u5907\u7528\u526f\u672c\u7684\u673a\u67b6\u611f\u77e5\uff0cKafka Streams \u4f1a\u5c1d\u8bd5\u5c06\u5907\u7528\u4efb\u52a1\u5206\u914d\u5230\u4e0e\u6d3b\u52a8\u4efb\u52a1\u4e0d\u540c\u7684\u673a\u67b6\u4e0a\u3002<\/li>\n\n\n\n<li>\u5f53\u6d3b\u52a8\u4efb\u52a1\u7684\u673a\u67b6\u53d1\u751f\u6545\u969c\u65f6\uff0c\u53ef\u4ee5\u66f4\u5feb\u5730\u6062\u590d\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7 <code>rack.aware.assignment.tags<\/code> \u914d\u7f6e\u673a\u67b6\u611f\u77e5\u3002<\/li>\n\n\n\n<li><strong>\u5ba2\u6237\u7aef\u673a\u67b6\u914d\u7f6e<\/strong>\uff1a<\/li>\n\n\n\n<li>\u4f7f\u7528 <code>client.rack<\/code> \u914d\u7f6e\u5ba2\u6237\u7aef\u7684\u673a\u67b6\u3002<\/li>\n\n\n\n<li>\u5982\u679c Kafka \u4ee3\u7406\u4e5f\u914d\u7f6e\u4e86 <code>broker.rack<\/code>\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7 <code>rack.aware.assignment.strategy<\/code> \u542f\u7528\u673a\u67b6\u611f\u77e5\u4efb\u52a1\u5206\u914d\uff0c\u51cf\u5c11\u8de8\u673a\u67b6\u6d41\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u5148\u7ea7<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5982\u679c\u540c\u65f6\u914d\u7f6e\u4e86 <code>rack.aware.assignment.tags<\/code> \u548c <code>client.rack<\/code>\uff0c\u5219 <code>rack.aware.assignment.tags<\/code> \u4f18\u5148\u7528\u4e8e\u5907\u7528\u4efb\u52a1\u7684\u673a\u67b6\u5206\u914d\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Kafka \u7684\u5bb9\u9519\u80fd\u529b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka \u5206\u533a\u7684\u9ad8\u53ef\u7528\u6027\u548c\u526f\u672c\u673a\u5236\u4e3a Kafka Streams \u63d0\u4f9b\u4e86\u57fa\u7840\u5bb9\u9519\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u4efb\u52a1\u6545\u969c\u65f6\uff0cKafka Streams \u4f1a\u81ea\u52a8\u5728\u5269\u4f59\u5b9e\u4f8b\u4e2d\u91cd\u65b0\u542f\u52a8\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u672c\u5730\u72b6\u6001\u5b58\u50a8\u7684\u5bb9\u9519<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7 changelog \u4e3b\u9898\u8ddf\u8e2a\u72b6\u6001\u66f4\u65b0\uff0c\u786e\u4fdd\u72b6\u6001\u5b58\u50a8\u7684\u6301\u4e45\u5316\u548c\u6062\u590d\u3002<\/li>\n\n\n\n<li>\u65e5\u5fd7\u538b\u7f29\u9632\u6b62 changelog \u4e3b\u9898\u65e0\u9650\u589e\u957f\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f18\u5316\u4efb\u52a1\u6062\u590d<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u914d\u7f6e\u5907\u7528\u526f\u672c\uff08<code>num.standby.replicas<\/code>\uff09\u4ee5\u6700\u5c0f\u5316\u4efb\u52a1\u6062\u590d\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u5907\u7528\u4efb\u52a1\u63d0\u9ad8\u4e86\u6545\u969c\u6062\u590d\u7684\u6548\u7387\u548c\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u673a\u67b6\u611f\u77e5<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u673a\u67b6\u611f\u77e5\u914d\u7f6e\uff0c\u5c06\u5907\u7528\u4efb\u52a1\u5206\u914d\u5230\u4e0d\u540c\u7684\u673a\u67b6\uff0c\u63d0\u9ad8\u6545\u969c\u6062\u590d\u901f\u5ea6\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528 <code>rack.aware.assignment.tags<\/code> \u548c <code>client.rack<\/code> \u914d\u7f6e\u673a\u67b6\u611f\u77e5\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5bb9\u9519\u673a\u5236\uff0c\u786e\u4fdd\u5728\u5e94\u7528\u7a0b\u5e8f\u6216\u673a\u5668\u6545\u969c\u65f6\u80fd\u591f\u900f\u660e\u5730\u6062\u590d\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u5907\u7528\u526f\u672c\u548c\u673a\u67b6\u611f\u77e5\u4f18\u5316\u4efb\u52a1\u6062\u590d\uff0c\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u6545\u969c\u5bf9\u7cfb\u7edf\u7684\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u5bb9\u9519\u673a\u5236\u7684\u8bbe\u8ba1\u4f7f\u5f97 Kafka Streams \u975e\u5e38\u9002\u5408\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u53ef\u9760\u6027\u7684\u6d41\u5904\u7406\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Local State Consistence<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u672c\u5730\u72b6\u6001\u4e00\u81f4\u6027\uff08Local State Consistency\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u901a\u8fc7\u5c06\u72b6\u6001\u66f4\u65b0\u5199\u5165\u672c\u5730\u72b6\u6001\u5b58\u50a8\u548c\u5185\u90e8\u7684 changelog \u4e3b\u9898\u6765\u7ef4\u62a4\u672c\u5730\u72b6\u6001\u7684\u4e00\u81f4\u6027\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5728&nbsp;<strong>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\uff08EOS\uff09<\/strong>&nbsp;\u548c&nbsp;<strong>\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\uff08ALOS\uff09<\/strong>&nbsp;\u4e0b\u5982\u4f55\u786e\u4fdd\u672c\u5730\u72b6\u6001\u4e00\u81f4\u6027\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1.&nbsp;<strong>\u672c\u5730\u72b6\u6001\u4e0e Changelog \u4e3b\u9898\u7684\u540c\u6b65<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001\u66f4\u65b0<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5f53\u72b6\u6001\u66f4\u65b0\u65f6\uff0cKafka Streams \u4f1a\u540c\u65f6\u5c06\u66f4\u65b0\u5199\u5165\u672c\u5730\u72b6\u6001\u5b58\u50a8\u548c\u5185\u90e8\u7684 changelog \u4e3b\u9898\u3002<\/li>\n\n\n\n<li>Changelog \u4e3b\u9898\u7528\u4e8e\u6301\u4e45\u5316\u72b6\u6001\u66f4\u65b0\uff0c\u786e\u4fdd\u5728\u6545\u969c\u6062\u590d\u65f6\u80fd\u591f\u91cd\u5efa\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u540c\u6b65\u673a\u5236<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u901a\u8fc7\u7ef4\u62a4\u4e00\u4e2a\u5ba2\u6237\u7aef\u672c\u5730\u7684\u00a0<strong>\u68c0\u67e5\u70b9\u6587\u4ef6\uff08checkpoint file\uff09<\/strong>\u00a0\u6765\u8bb0\u5f55\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u7684\u540c\u6b65\u70b9\u3002<\/li>\n\n\n\n<li>\u68c0\u67e5\u70b9\u6587\u4ef6\u4ec5\u5b58\u50a8\u5143\u6570\u636e\uff0c\u7528\u4e8e\u6807\u8bc6\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2.&nbsp;<strong>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\uff08EOS\uff09\u4e0b\u7684\u72b6\u6001\u4e00\u81f4\u6027<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001\u4e0d\u4e00\u81f4\u7684\u5904\u7406<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u542f\u7528 EOS \u5e76\u4e14\u672c\u5730\u72b6\u6001\u4e0e changelog \u4e3b\u9898\u4e0d\u4e00\u81f4\uff0cKafka Streams \u4f1a\u5220\u9664\u72b6\u6001\u5b58\u50a8\u5e76\u4ece changelog \u4e3b\u9898\u91cd\u5efa\u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u8fd9\u79cd\u60c5\u51b5\u901a\u5e38\u53d1\u751f\u5728 Kafka Streams \u5d29\u6e83\u6216 Kafka \u4ee3\u7406\u65e0\u6cd5\u63a5\u53d7\u5199\u5165\u65f6\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u72b6\u6001\u91cd\u5efa<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u72b6\u6001\u91cd\u5efa\u662f\u4e00\u4e2a\u6602\u8d35\u7684\u8fc7\u7a0b\uff0c\u4f46\u5f88\u5c11\u53d1\u751f\u3002<\/li>\n\n\n\n<li>\u5728\u4efb\u52a1\u91cd\u65b0\u5e73\u8861\u65f6\uff08\u4f8b\u5982\u4efb\u52a1\u8fc1\u79fb\u5230\u65b0\u8282\u70b9\uff09\uff0c\u4e5f\u53ef\u80fd\u9700\u8981\u4ece changelog \u4e3b\u9898\u91cd\u5efa\u72b6\u6001\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u68c0\u67e5\u70b9\u6587\u4ef6\u7684\u4f5c\u7528<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u68c0\u67e5\u70b9\u6587\u4ef6\u7528\u4e8e\u8bb0\u5f55\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u7684\u540c\u6b65\u70b9\u3002<\/li>\n\n\n\n<li>\u5982\u679c Kafka Streams \u68c0\u6d4b\u5230\u72b6\u6001\u4e0d\u4e00\u81f4\uff0c\u4f1a\u4e22\u5f03\u6574\u4e2a\u72b6\u6001\u5b58\u50a8\u5e76\u4ece changelog \u4e3b\u9898\u91cd\u5efa\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3.&nbsp;<strong>\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\uff08ALOS\uff09\u4e0b\u7684\u72b6\u6001\u4e00\u81f4\u6027<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u201c\u810f\u201d\u5199\u5165<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u975e EOS \u60c5\u51b5\u4e0b\uff0cKafka Streams \u53ef\u80fd\u4f1a\u5b58\u5728\u201c\u810f\u201d\u5199\u5165\uff08\u5373\u90e8\u5206\u5199\u5165\u672a\u5b8c\u5168\u540c\u6b65\uff09\u3002<\/li>\n\n\n\n<li>\u7531\u4e8e\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\u4e0d\u4fdd\u8bc1\u72b6\u6001\u4e00\u81f4\u6027\uff0c\u56e0\u6b64\u4e0d\u4f1a\u5c1d\u8bd5\u91cd\u5efa\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u72b6\u6001\u540c\u6b65\u673a\u5236<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u786e\u4fdd\u5728\u63d0\u4ea4\u504f\u79fb\u91cf\u548c\u66f4\u65b0\u68c0\u67e5\u70b9\u6587\u4ef6\u4e4b\u524d\uff0c\u72b6\u6001\u5b58\u50a8\u5df2\u5237\u65b0\u5230\u78c1\u76d8\uff0c\u5e76\u4e14 changelog \u4e3b\u9898\u5df2\u5199\u5165 Kafka\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u5728\u4e24\u6b21\u63d0\u4ea4\u4e4b\u95f4\u53d1\u751f\u9519\u8bef\uff0cKafka Streams \u4f1a\u91cd\u7528\u73b0\u6709\u7684\u72b6\u6001\u5b58\u50a8\u548c changelog \u4e3b\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Changelog \u91cd\u653e<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u6062\u590d\u6570\u636e\u5904\u7406\u4e4b\u524d\uff0cKafka Streams \u4f1a\u91cd\u653e changelog \u4e3b\u9898\u7684\u5c3e\u90e8\uff08\u4ece\u68c0\u67e5\u70b9\u504f\u79fb\u91cf\u5230\u672b\u5c3e\uff09\u3002<\/li>\n\n\n\n<li>\u8fd9\u786e\u4fdd\u6240\u6709\u5199\u5165 changelog \u4e3b\u9898\u7684\u66f4\u65b0\u4e5f\u53cd\u6620\u5728\u72b6\u6001\u5b58\u50a8\u4e2d\uff0c\u4fdd\u6301\u4e24\u8005\u540c\u6b65\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u672c\u5730\u72b6\u6001\u4e0e Changelog \u4e3b\u9898\u7684\u540c\u6b65<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u72b6\u6001\u66f4\u65b0\u540c\u65f6\u5199\u5165\u672c\u5730\u72b6\u6001\u5b58\u50a8\u548c changelog \u4e3b\u9898\u3002<\/li>\n\n\n\n<li>\u68c0\u67e5\u70b9\u6587\u4ef6\u7528\u4e8e\u8bb0\u5f55\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u7684\u540c\u6b65\u70b9\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\uff08EOS\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u72b6\u6001\u4e0d\u4e00\u81f4\uff0cKafka Streams \u4f1a\u5220\u9664\u72b6\u6001\u5b58\u50a8\u5e76\u4ece changelog \u4e3b\u9898\u91cd\u5efa\u3002<\/li>\n\n\n\n<li>\u72b6\u6001\u91cd\u5efa\u662f\u4e00\u4e2a\u6602\u8d35\u4f46\u7f55\u89c1\u7684\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u81f3\u5c11\u4e00\u6b21\u8bed\u4e49\uff08ALOS\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u53ef\u80fd\u5b58\u5728\u201c\u810f\u201d\u5199\u5165\uff0c\u4e0d\u5c1d\u8bd5\u91cd\u5efa\u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u91cd\u653e changelog \u4e3b\u9898\u7684\u5c3e\u90e8\uff0c\u786e\u4fdd\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u540c\u6b65\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u901a\u8fc7\u672c\u5730\u72b6\u6001\u5b58\u50a8\u548c changelog \u4e3b\u9898\u7684\u540c\u6b65\u673a\u5236\uff0c\u786e\u4fdd\u4e86\u72b6\u6001\u7684\u4e00\u81f4\u6027\u3002<\/li>\n\n\n\n<li>\u5728 EOS \u4e0b\uff0c\u901a\u8fc7\u72b6\u6001\u91cd\u5efa\u673a\u5236\u4fdd\u8bc1\u4e86\u7cbe\u786e\u4e00\u6b21\u8bed\u4e49\u3002<\/li>\n\n\n\n<li>\u5728 ALOS \u4e0b\uff0c\u901a\u8fc7\u91cd\u653e changelog \u4e3b\u9898\u7684\u5c3e\u90e8\uff0c\u786e\u4fdd\u72b6\u6001\u5b58\u50a8\u4e0e changelog \u4e3b\u9898\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Flow Control with Timestamps<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u57fa\u4e8e\u65f6\u95f4\u6233\u7684\u6d41\u63a7\u5236\uff08Flow Control with Timestamps\uff09<\/h3>\n\n\n\n<p>Kafka Streams \u901a\u8fc7\u6570\u636e\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u6765\u8c03\u8282\u6d41\u7684\u8fdb\u5ea6\uff0c\u5e76\u5c1d\u8bd5\u5728\u65f6\u95f4\u4e0a\u540c\u6b65\u6240\u6709\u6e90\u6d41\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5982\u4f55\u5229\u7528\u65f6\u95f4\u6233\u8fdb\u884c\u6d41\u63a7\u5236\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u65f6\u95f4\u6233\u7684\u4f5c\u7528<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u4ef6\u65f6\u95f4\u5904\u7406\u8bed\u4e49<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka Streams \u9ed8\u8ba4\u63d0\u4f9b\u4e8b\u4ef6\u65f6\u95f4\u5904\u7406\u8bed\u4e49\uff0c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u57fa\u4e8e\u8bb0\u5f55\u7684\u5b9e\u9645\u53d1\u751f\u65f6\u95f4\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u8fd9\u5bf9\u4e8e\u5904\u7406\u591a\u4e2a\u6d41\uff08\u5373 Kafka \u4e3b\u9898\uff09\u4e14\u5305\u542b\u5927\u91cf\u5386\u53f2\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u5c24\u4e3a\u91cd\u8981\u3002<\/li>\n\n\n\n<li><strong>\u5386\u53f2\u6570\u636e\u91cd\u5904\u7406<\/strong>\uff1a<\/li>\n\n\n\n<li>\u5f53\u5e94\u7528\u7a0b\u5e8f\u7684\u4e1a\u52a1\u903b\u8f91\u53d1\u751f\u91cd\u5927\u53d8\u5316\uff08\u4f8b\u5982\u4fee\u590d\u5206\u6790\u7b97\u6cd5\u4e2d\u7684\u9519\u8bef\uff09\u65f6\uff0c\u7528\u6237\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u5904\u7406\u8fc7\u53bb\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u6ca1\u6709\u9002\u5f53\u7684\u6d41\u63a7\u5236\uff0c\u8de8\u4e3b\u9898\u5206\u533a\u7684\u6570\u636e\u5904\u7406\u53ef\u80fd\u4f1a\u4e0d\u540c\u6b65\uff0c\u5bfc\u81f4\u9519\u8bef\u7684\u7ed3\u679c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u6d41\u63a7\u5236\u7684\u5b9e\u73b0<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bb0\u5f55\u65f6\u95f4\u6233<\/strong>\uff1a<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u6570\u636e\u8bb0\u5f55\u5728 Kafka Streams \u4e2d\u90fd\u4e0e\u4e00\u4e2a\u65f6\u95f4\u6233\u76f8\u5173\u8054\u3002<\/li>\n\n\n\n<li>\u6d41\u4efb\u52a1\u6839\u636e\u5176\u6d41\u8bb0\u5f55\u7f13\u51b2\u533a\u4e2d\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\uff0c\u786e\u5b9a\u4e0b\u4e00\u4e2a\u8981\u5904\u7406\u7684\u5206\u533a\u3002<\/li>\n\n\n\n<li><strong>\u5206\u533a\u5904\u7406\u987a\u5e8f<\/strong>\uff1a<\/li>\n\n\n\n<li>Kafka Streams \u4e0d\u4f1a\u5728\u5355\u4e2a\u6d41\u5185\u91cd\u65b0\u6392\u5e8f\u8bb0\u5f55\uff0c\u56e0\u4e3a\u91cd\u65b0\u6392\u5e8f\u4f1a\u7834\u574f Kafka \u7684\u4ea4\u4ed8\u8bed\u4e49\uff0c\u5e76\u5728\u6545\u969c\u6062\u590d\u65f6\u589e\u52a0\u590d\u6742\u6027\u3002<\/li>\n\n\n\n<li>\u6d41\u63a7\u5236\u662f\u5c3d\u529b\u800c\u4e3a\u7684\uff08best-effort\uff09\uff0c\u56e0\u4e3a\u65e0\u6cd5\u4e25\u683c\u6309\u8bb0\u5f55\u65f6\u95f4\u6233\u5f3a\u5236\u6267\u884c\u8de8\u6d41\u7684\u6267\u884c\u987a\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u6d41\u63a7\u5236\u7684\u6311\u6218<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e25\u683c\u6267\u884c\u987a\u5e8f\u7684\u9650\u5236<\/strong>\uff1a<\/li>\n\n\n\n<li>\u8981\u4e25\u683c\u6309\u65f6\u95f4\u6233\u6267\u884c\u987a\u5e8f\uff0c\u5fc5\u987b\u7b49\u5f85\u7cfb\u7edf\u4ece\u6240\u6709\u6d41\u4e2d\u63a5\u6536\u5230\u6240\u6709\u8bb0\u5f55\uff08\u5728\u5b9e\u8df5\u4e2d\u53ef\u80fd\u4e0d\u53ef\u884c\uff09\u3002<\/li>\n\n\n\n<li>\u6216\u8005\uff0c\u9700\u8981\u6ce8\u5165\u989d\u5916\u7684\u65f6\u95f4\u6233\u8fb9\u754c\u4fe1\u606f\u6216\u542f\u53d1\u5f0f\u4f30\u8ba1\uff08\u5982 MillWheel \u7684\u6c34\u5370\u673a\u5236\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65f6\u95f4\u6233\u7684\u4f5c\u7528<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u4f7f\u7528\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u6765\u8c03\u8282\u6d41\u7684\u8fdb\u5ea6\uff0c\u786e\u4fdd\u4e8b\u4ef6\u65f6\u95f4\u5904\u7406\u8bed\u4e49\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u5904\u7406\u591a\u4e2a\u6d41\u548c\u5927\u91cf\u5386\u53f2\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u5c24\u4e3a\u91cd\u8981\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6d41\u63a7\u5236\u7684\u5b9e\u73b0<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d41\u4efb\u52a1\u6839\u636e\u8bb0\u5f55\u65f6\u95f4\u6233\u786e\u5b9a\u4e0b\u4e00\u4e2a\u8981\u5904\u7406\u7684\u5206\u533a\u3002<\/li>\n\n\n\n<li>Kafka Streams \u4e0d\u4f1a\u5728\u5355\u4e2a\u6d41\u5185\u91cd\u65b0\u6392\u5e8f\u8bb0\u5f55\uff0c\u4ee5\u4fdd\u6301 Kafka \u7684\u4ea4\u4ed8\u8bed\u4e49\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6d41\u63a7\u5236\u7684\u6311\u6218<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e25\u683c\u6309\u65f6\u95f4\u6233\u6267\u884c\u987a\u5e8f\u9700\u8981\u7b49\u5f85\u6240\u6709\u8bb0\u5f55\u6216\u6ce8\u5165\u989d\u5916\u4fe1\u606f\uff0c\u8fd9\u5728\u5b9e\u8df5\u4e2d\u53ef\u80fd\u4e0d\u53ef\u884c\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kafka Streams \u901a\u8fc7\u65f6\u95f4\u6233\u5b9e\u73b0\u4e86\u57fa\u4e8e\u4e8b\u4ef6\u65f6\u95f4\u7684\u6d41\u63a7\u5236\uff0c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u6b63\u786e\u5904\u7406\u5386\u53f2\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5c3d\u7ba1\u6d41\u63a7\u5236\u662f\u5c3d\u529b\u800c\u4e3a\u7684\uff0c\u4f46\u5b83\u4e3a\u5904\u7406\u591a\u4e2a\u6d41\u548c\u5927\u91cf\u6570\u636e\u63d0\u4f9b\u4e86\u6709\u6548\u7684\u65f6\u95f4\u540c\u6b65\u673a\u5236\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Backpressure<\/h2>\n\n\n\n<p>\u80cc\u538b\u673a\u5236\uff08Backpressure\uff09<br>Kafka Streams \u4e0d\u9700\u8981\u4f7f\u7528\u80cc\u538b\u673a\u5236\uff0c\u56e0\u4e3a\u5b83\u901a\u8fc7\u6df1\u5ea6\u4f18\u5148\u5904\u7406\u7b56\u7565\u548c Kafka \u7684\u62c9\u53d6\u6a21\u578b\u5b9e\u73b0\u4e86\u81ea\u7136\u7684\u6d41\u91cf\u63a7\u5236\u3002\u4ee5\u4e0b\u662f Kafka Streams \u5982\u4f55\u5904\u7406\u6570\u636e\u6d41\u4ee5\u907f\u514d\u80cc\u538b\u95ee\u9898\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u603b\u7ed3\u3002<br><br>1. <strong>\u6df1\u5ea6\u4f18\u5148\u5904\u7406\u7b56\u7565<\/strong><br><strong>\u5904\u7406\u65b9\u5f0f<\/strong>\uff1a<br>Kafka Streams \u91c7\u7528\u6df1\u5ea6\u4f18\u5148\u5904\u7406\u7b56\u7565\uff0c\u6bcf\u6761\u4ece Kafka \u6d88\u8d39\u7684\u8bb0\u5f55\u4f1a\u5b8c\u6574\u5730\u901a\u8fc7\u6574\u4e2a\u5904\u7406\u5668\uff08\u5b50\uff09\u62d3\u6251\u8fdb\u884c\u5904\u7406\uff0c\u5e76\u53ef\u80fd\u5199\u56de Kafka\uff0c\u7136\u540e\u518d\u5904\u7406\u4e0b\u4e00\u6761\u8bb0\u5f55\u3002<br>\u8fd9\u79cd\u7b56\u7565\u786e\u4fdd\u4e86\u4e24\u6761\u8fde\u63a5\u7684\u6d41\u5904\u7406\u5668\u4e4b\u95f4\u4e0d\u4f1a\u5728\u5185\u5b58\u4e2d\u7f13\u51b2\u5927\u91cf\u8bb0\u5f55\u3002<br><strong>\u4f18\u52bf<\/strong>\uff1a<br>\u907f\u514d\u4e86\u5185\u5b58\u4e2d\u8bb0\u5f55\u79ef\u538b\u7684\u95ee\u9898\uff0c\u51cf\u5c11\u4e86\u5185\u5b58\u538b\u529b\u3002<br>\u6bcf\u6761\u8bb0\u5f55\u7684\u5904\u7406\u662f\u72ec\u7acb\u7684\uff0c\u786e\u4fdd\u7cfb\u7edf\u80fd\u591f\u9ad8\u6548\u5730\u5904\u7406\u6570\u636e\u6d41\u3002<br><br>2. <strong>Kafka \u7684\u62c9\u53d6\u6a21\u578b<\/strong><br><strong>\u6d88\u8d39\u8005\u63a7\u5236<\/strong>\uff1a<br>Kafka Streams \u5e95\u5c42\u4f7f\u7528 Kafka \u7684\u6d88\u8d39\u8005\u5ba2\u6237\u7aef\uff0c\u91c7\u7528\u57fa\u4e8e\u62c9\u53d6\u7684\u6d88\u606f\u6a21\u578b\u3002<br>\u4e0b\u6e38\u5904\u7406\u5668\u53ef\u4ee5\u63a7\u5236\u8bfb\u53d6\u6570\u636e\u8bb0\u5f55\u7684\u901f\u7387\uff0c\u4ece\u800c\u81ea\u7136\u5730\u5b9e\u73b0\u6d41\u91cf\u63a7\u5236\u3002<br><strong>\u4f18\u52bf<\/strong>\uff1a<br>\u62c9\u53d6\u6a21\u578b\u4f7f\u5f97 Kafka Streams \u80fd\u591f\u6839\u636e\u4e0b\u6e38\u5904\u7406\u80fd\u529b\u52a8\u6001\u8c03\u6574\u6570\u636e\u6d88\u8d39\u901f\u5ea6\uff0c\u907f\u514d\u4e86\u6570\u636e\u79ef\u538b\u3002<br><br>3. <strong>\u591a\u5b50\u62d3\u6251\u7684\u5904\u7406<\/strong><br><strong>\u72ec\u7acb\u5904\u7406<\/strong>\uff1a<br>\u5982\u679c\u5904\u7406\u5668\u62d3\u6251\u5305\u542b\u591a\u4e2a\u72ec\u7acb\u7684\u5b50\u62d3\u6251\uff0c\u8fd9\u4e9b\u5b50\u62d3\u6251\u4f1a\u72ec\u7acb\u5904\u7406\u6570\u636e\u3002<br>\u5b50\u62d3\u6251\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u901a\u8fc7 Kafka \u4e3b\u9898\u8fdb\u884c\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4ea4\u6362\u6570\u636e\u3002<br><strong>\u793a\u4f8b<\/strong>\uff1a<br><code>stream1.to(\"my-topic\"); stream2 = builder.stream(\"my-topic\");<\/code><br>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6570\u636e\u901a\u8fc7 Kafka \u4e3b\u9898 <code>my-topic<\/code> \u5728\u5b50\u62d3\u6251\u4e4b\u95f4\u4ea4\u6362\u3002<br><strong>\u4f18\u52bf<\/strong>\uff1a<br>\u7531\u4e8e\u6570\u636e\u4ea4\u6362\u901a\u8fc7 Kafka \u8fdb\u884c\uff0c\u5b50\u62d3\u6251\u4e4b\u95f4\u6ca1\u6709\u76f4\u63a5\u7684\u6570\u636e\u4f9d\u8d56\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u80cc\u538b\u673a\u5236\u3002<br><br>\u603b\u7ed3<br><strong>\u6df1\u5ea6\u4f18\u5148\u5904\u7406\u7b56\u7565<\/strong>\uff1a<br>Kafka Streams \u91c7\u7528\u6df1\u5ea6\u4f18\u5148\u5904\u7406\u7b56\u7565\uff0c\u786e\u4fdd\u6bcf\u6761\u8bb0\u5f55\u5b8c\u6574\u901a\u8fc7\u5904\u7406\u5668\u62d3\u6251\u540e\u518d\u5904\u7406\u4e0b\u4e00\u6761\u8bb0\u5f55\u3002<br>\u907f\u514d\u4e86\u5185\u5b58\u4e2d\u8bb0\u5f55\u79ef\u538b\u7684\u95ee\u9898\u3002<br><strong>Kafka \u7684\u62c9\u53d6\u6a21\u578b<\/strong>\uff1a<br>Kafka Streams \u5229\u7528 Kafka \u7684\u62c9\u53d6\u6a21\u578b\uff0c\u4e0b\u6e38\u5904\u7406\u5668\u53ef\u4ee5\u63a7\u5236\u6570\u636e\u6d88\u8d39\u901f\u7387\uff0c\u5b9e\u73b0\u81ea\u7136\u7684\u6d41\u91cf\u63a7\u5236\u3002<br><strong>\u591a\u5b50\u62d3\u6251\u7684\u5904\u7406<\/strong>\uff1a<br>\u5b50\u62d3\u6251\u4e4b\u95f4\u901a\u8fc7 Kafka \u4e3b\u9898\u4ea4\u6362\u6570\u636e\uff0c\u6ca1\u6709\u76f4\u63a5\u7684\u6570\u636e\u4f9d\u8d56\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u80cc\u538b\u673a\u5236\u3002<br><strong>\u6838\u5fc3\u4ef7\u503c<\/strong>\uff1a<br>Kafka Streams 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