{"id":10008215,"date":"2023-09-01T15:59:28","date_gmt":"2023-09-01T07:59:28","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008215"},"modified":"2023-09-01T15:59:28","modified_gmt":"2023-09-01T07:59:28","slug":"%e6%b7%b1%e5%85%a5%e8%a7%a3%e8%af%bb-mongodb-cdc-%e7%9a%84%e8%ae%be%e8%ae%a1%e4%b8%8e%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008215","title":{"rendered":"\u6df1\u5165\u89e3\u8bfb MongoDB CDC \u7684\u8bbe\u8ba1\u4e0e\u5b9e\u73b0"},"content":{"rendered":"<blockquote><p>\u4f5c\u8005:\u5343\u6d6a@\u963f\u91cc\u4e91\u7814\u53d1\u5de5\u7a0b\u5e08<\/p><\/blockquote>\n<h2>MongoDB CDC \u6982\u8ff0<\/h2>\n<p>MongoDB \u662f\u5f53\u4e0b\u6d41\u884c\u7684\u4e00\u4e2a\u57fa\u4e8e\u6587\u6863\u7684\u975e\u5173\u7cfb\u6027\u6570\u636e\u5e93\u3002MongoDB CDC [1] \u662f Flink CDC \u793e\u533a [2] \u63d0\u4f9b\u7684\u4e00\u4e2a\u7528\u4e8e\u6355\u83b7\u53d8\u66f4\u6570\u636e\uff08Change Data Capturing\uff09\u7684 Flink \u8fde\u63a5\u5668\uff0c\u53ef\u8fde\u63a5\u5230 MongoDB \u6570\u636e\u5e93\u548c\u96c6\u5408\uff0c\u5e76\u6355\u83b7\u5176\u4e2d\u7684\u6587\u6863\u589e\u52a0\u3001\u66f4\u65b0\u3001\u66ff\u6362\u3001\u5220\u9664\u7b49\u53d8\u66f4\u64cd\u4f5c\uff0c\u751f\u6210\u6807\u51c6\u7684 Flink Changelog \u4e8b\u4ef6\u6d41\uff0c\u652f\u6301\u901a\u8fc7 Flink SQL \u6216 DataStream API \u8fdb\u884c\u6570\u636e\u52a0\u5de5\uff0c \u52a0\u5de5\u4e4b\u540e\u53ef\u4ee5\u65b9\u4fbf\u5730\u5199\u5165\u5230 Flink \u6240\u652f\u6301\u7684\u5404\u79cd\u4e0b\u6e38\u7cfb\u7edf\u4e2d\u3002<\/p>\n<h2>MongoDB CDC \u6838\u5fc3\u529f\u80fd<\/h2>\n<h3>\u5168\u589e\u91cf\u4e00\u4f53\u5316\u8bfb\u53d6<\/h3>\n<p>\u5728\u5b9e\u9645\u7684\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u5e38\u5e38\u9700\u8981\u540c\u65f6\u91c7\u96c6 MongoDB \u6570\u636e\u5e93\u4e2d\u7684\u5b58\u91cf\u6570\u636e\u4ee5\u53ca\u589e\u91cf\u6570\u636e\u3002MongoDB CDC \u80fd\u591f\u4e00\u4f53\u5316\u5730\u8bfb\u53d6\u5168\u91cf\u6570\u636e\u548c\u589e\u91cf\u6570\u636e\u3002\u5728\u542f\u52a8\u9009\u9879\u914d\u7f6e\u4e3a initial \u6a21\u5f0f\u65f6\uff0cCDC \u4f1a\u9996\u5148\u5bf9\u76ee\u6807\u96c6\u5408\u8fdb\u884c\u626b\u63cf\uff0c\u5e76\u5bf9\u73b0\u5b58\u7684\u6bcf\u4e00\u6761\u6570\u636e\u5404\u53d1\u9001\u4e00\u6761 Insert \u8bb0\u5f55\uff1b\u5feb\u7167\u5b8c\u6210\u540e\uff0cCDC \u4f1a\u81ea\u52a8\u8f6c\u6362\u4e3a\u589e\u91cf\u6a21\u5f0f\uff0c\u5f00\u59cb\u6355\u83b7\u8fde\u63a5\u5668\u542f\u52a8\u540e\u5230\u6765\u7684\u53d8\u66f4\u6570\u636e\u3002\u671f\u95f4\u652f\u6301\u5728\u4efb\u610f\u65f6\u523b\u7684\u6545\u969c\u6062\u590d\uff0c\u4e14\u4fdd\u8bc1\u63d0\u4f9b\u4e0d\u4e22\u4e0d\u91cd\u7684\u7cbe\u786e\u4e00\u6b21\uff08Exactly-Once\uff09\u8bed\u4e49\u3002<\/p>\n<h3>\u652f\u6301\u591a\u79cd\u6d88\u8d39\u6a21\u5f0f<\/h3>\n<p>\u9488\u5bf9\u4e0d\u540c\u7684\u573a\u666f\u9700\u6c42\uff0cMongoDB CDC \u53ef\u4ee5\u8bbe\u5b9a\u4e3a\u4ece\u4ee5\u4e0b\u6a21\u5f0f\u4e2d\u542f\u52a8\uff1a<\/p>\n<ul>\n<li>\n<p>latest \u6a21\u5f0f<\/p>\n<ul>\n<li>\u5728\u6b64\u6a21\u5f0f\u4e0b\uff0cMongoDB CDC \u4e0d\u4f1a\u5904\u7406\u542f\u52a8\u524d\u5df2\u7ecf\u5b58\u5728\u7684\u6570\u636e\uff0c\u53ea\u9488\u5bf9\u542f\u52a8\u540e\u5230\u6765\u7684\u53d8\u66f4\u6570\u636e\u4ea7\u751f\u53d8\u66f4\u8bb0\u5f55\u3002\u8fd9\u610f\u5473\u7740\u8fde\u63a5\u5668\u53ea\u80fd\u8bfb\u53d6\u5728\u8fde\u63a5\u5668\u542f\u52a8\u4e4b\u540e\u7684\u6570\u636e\u66f4\u6539\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>initial \u6a21\u5f0f<\/p>\n<ul>\n<li>\u5728\u6b64\u6a21\u5f0f\u4e0b\uff0cMongoDB CDC \u4f1a\u5148\u5bf9\u5168\u90e8\u5b58\u91cf\u6570\u636e\u8fdb\u884c\u5feb\u7167\uff0c\u5f85\u5feb\u7167\u5b8c\u6210\u540e\u518d\u5f00\u59cb\u6355\u83b7\u53d8\u66f4\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>timestamp \u6a21\u5f0f<\/p>\n<ul>\n<li>\u5728\u6b64\u6a21\u5f0f\u4e0b\uff0cMongoDB CDC \u4f1a\u6355\u83b7\u7ed9\u5b9a\u7684\u65f6\u95f4\u6233\u4e4b\u540e\u53d1\u751f\u7684\u53d8\u66f4\u6570\u636e\u3002\u65f6\u95f4\u6233\u7684\u53d6\u503c\u5fc5\u987b\u5728 MongoDB \u7684\u6709\u6548\u65e5\u5fd7\u8bb0\u5f55\u8303\u56f4\u5185\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u652f\u6301\u4ea7\u751f\u5b8c\u6574\u53d8\u66f4\u4e8b\u4ef6\u6d41<\/h3>\n<p>MongoDB 6.0 \u4e4b\u524d\u7684\u7248\u672c\u9ed8\u8ba4\u4e0d\u4f1a\u63d0\u4f9b\u53d8\u66f4\u524d\u6587\u6863\u53ca\u88ab\u5220\u9664\u6587\u6863\u7684\u6570\u636e\uff1b\u5229\u7528\u8fd9\u4e9b\u4fe1\u606f\u53ea\u80fd\u5b9e\u73b0 Upsert \u8bed\u4e49\uff08\u5373\u7f3a\u5931\u4e86 Update Before \u6570\u636e\u6761\u76ee\uff09\u3002\u4f46\u5728 Flink \u4e2d\u8bb8\u591a\u6709\u7528\u7684\u7b97\u5b50\u64cd\u4f5c\u90fd\u4f9d\u8d56\u5b8c\u6574\u7684 Insert\u3001Update Before\u3001Update After\u3001Delete \u53d8\u66f4\u6d41\u3002\u5982\u679c\u9700\u8981\u8865\u5145\u7f3a\u5931\u7684\u53d8\u66f4\u524d\u4e8b\u4ef6\uff0c\u4e00\u4e2a\u81ea\u7136\u7684\u601d\u8def\u662f\u5728 Flink \u72b6\u6001\u4e2d\u7f13\u5b58\u6240\u6709\u6587\u6863\u7684\u5f53\u524d\u7248\u672c\u5feb\u7167\uff1b\u5728\u9047\u5230\u88ab\u66f4\u65b0\u6216\u5220\u9664\u7684\u6587\u6863\u65f6\uff0c\u67e5\u8868\u5373\u53ef\u5f97\u77e5\u53d8\u66f4\u524d\u7684\u72b6\u6001\u3002\u7136\u800c\u5728\u6700\u574f\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u79cd\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u4fdd\u5b58\u76f8\u5f53\u4e8e 100% \u539f\u59cb\u6570\u636e\u91cf\u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u76ee\u524d\uff0cFlink SQL Planner \u4f1a\u81ea\u52a8\u4e3a Upsert \u7c7b\u578b\u7684 Source \u751f\u6210\u4e00\u4e2a ChangelogNormalize \u8282\u70b9\uff0c\u5e76\u6309\u7167\u4e0a\u8ff0\u64cd\u4f5c\u5c06\u5176\u8f6c\u6362\u4e3a\u5b8c\u6574\u7684\u53d8\u66f4\u6d41\uff1b\u4ee3\u4ef7\u5219\u662f\u8be5\u7b97\u5b50\u8282\u70b9\u9700\u8981\u5b58\u50a8\u4f53\u79ef\u5de8\u5927\u7684 State \u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173149\" alt=\"1\" title=\"1\"><\/p>\n<p>MongoDB 6.0 \u7684 Pre- and Post-Image \u65b0\u529f\u80fd [6] \u63d0\u4f9b\u4e86\u4e00\u4e2a\u66f4\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\uff1a\u53ea\u8981\u542f\u7528 changeStreamPreAndPostImages \u529f\u80fd\uff0cMongoDB \u5c31\u4f1a\u5728\u6bcf\u6b21\u53d8\u66f4\u53d1\u751f\u65f6\uff0c\u5728\u4e00\u4e2a\u7279\u6b8a\u7684\u96c6\u5408\u4e2d\u8bb0\u5f55\u6587\u6863\u53d8\u66f4\u524d\u540e\u7684\u5b8c\u6574\u72b6\u6001\u3002MongoDB CDC \u652f\u6301\u8bfb\u53d6\u8fd9\u4e9b\u8bb0\u5f55\u5e76\u4ea7\u751f\u5b8c\u6574\u4e8b\u4ef6\u6d41\uff0c\u4ece\u800c\u6d88\u9664\u4e86\u5bf9 ChangelogNormalize \u8282\u70b9\u7684\u4f9d\u8d56\u3002<\/p>\n<h3>\u57fa\u4e8e\u5fc3\u8df3\u7684\u6807\u8bb0\u63a8\u52a8\u673a\u5236<\/h3>\n<p>\u76ee\u524d\u7248\u672c\u7684 CDC \u5b9e\u73b0\u9700\u8981\u5168\u5c40\u552f\u4e00\u7684\u56de\u6eaf\u6807\u8bb0\uff08Resume Token\uff09\u6765\u5b9a\u4f4d\u53d8\u66f4\u6d41\u7684\u4f4d\u7f6e\u3002\u7136\u800c MongoDB \u5e76\u4e0d\u4f1a\u65e0\u9650\u5730\u5b58\u50a8\u6240\u6709\u7684\u65e5\u5fd7\uff0c\u8f83\u65e9\u7684\u53d8\u66f4\u8bb0\u5f55\u53ef\u80fd\u4f1a\u5728\u4fdd\u5b58\u65f6\u95f4\u8d85\u9650\u6216\u65e5\u5fd7\u5927\u5c0f\u8d85\u9650\u65f6\u88ab\u6e05\u9664\u3002<\/p>\n<p>\u5bf9\u4e8e\u53d8\u66f4\u9891\u7e41\u7684\u96c6\u5408\uff0c\u6e05\u9664\u8bb0\u5f55\u5e76\u4e0d\u4f1a\u5e26\u6765\u4ec0\u4e48\u95ee\u9898\uff0c\u56e0\u4e3a\u6bcf\u6b21\u83b7\u53d6\u6700\u65b0\u7684\u53d8\u66f4\u6761\u76ee\u65f6\u90fd\u4f1a\u4e00\u5e76\u5237\u65b0\u56de\u6eaf\u6807\u8bb0\uff0c\u59cb\u7ec8\u4fdd\u8bc1\u56de\u6eaf\u6807\u8bb0\u7684\u6709\u6548\u6027\u3002\u4f46\u5bf9\u4e8e\u4e00\u4e9b\u53d8\u66f4\u975e\u5e38\u7f13\u6162\u7684\u96c6\u5408\uff0c\u53ef\u80fd\u51fa\u73b0\u201c\u4e0a\u4e00\u6b21\u53d8\u66f4\u975e\u5e38\u4e45\u8fdc\uff0c\u5bfc\u81f4\u5176\u5bf9\u5e94\u7684\u56de\u6eaf\u6807\u8bb0\u5df2\u7ecf\u88ab\u6e05\u9664\u4e86\u201d\u7684\u60c5\u51b5\uff0c\u8fd9\u610f\u5473\u7740\u65e0\u6cd5\u518d\u4ece\u6d41\u4e2d\u8fdb\u884c\u6062\u590d\u5e76\u8bfb\u53d6\u4e0b\u4e00\u6b21\u53d8\u66f4\uff08\u7531\u4e8e\u56de\u6eaf\u6807\u8bb0\u4e0d\u5b58\u5728\u800c\u65e0\u6cd5\u5b9a\u4f4d\uff09\u3002<\/p>\n<p>MongoDB \u63d0\u4f9b\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u201c\u5fc3\u8df3\u673a\u5236\u201d\u9009\u9879\uff0c\u5728\u6d41\u4e2d\u6ca1\u6709\u53d8\u66f4\u6570\u636e\u65f6\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001\u5fc3\u8df3\u5305\u4ee5\u5237\u65b0\u56de\u6eaf\u6807\u8bb0\u3002\u8fd9\u6837\u5bf9\u4e8e\u53d8\u66f4\u7f13\u6162\u7684\u96c6\u5408\u4e5f\u80fd\u4fdd\u6301\u5176\u56de\u6eaf\u6807\u8bb0\u66f4\u65b0\uff0c\u800c\u4e0d\u81f3\u4e8e\u8fc7\u671f\u3002\u53ef\u4ee5\u901a\u8fc7 MongoDB CDC \u7684  heartbeat.interval.ms \u9009\u9879\u6765\u542f\u7528\u5fc3\u8df3\u673a\u5236\u3002<\/p>\n<h2>MongoDB CDC \u7684\u8bbe\u8ba1\u65b9\u6848<\/h2>\n<p>\u6839\u636e\u4f7f\u7528\u7684\u6280\u672f\u65b9\u6cd5\u4e0d\u540c\uff0cMongoDB CDC \u7684\u6280\u672f\u6f14\u8fdb\u8fc7\u7a0b\u5927\u81f4\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a\u6700\u65e9\u7684 CDC\uff08\u5982\u65e9\u671f\u7684 Debezium MongoDB \u7b49\uff09\u57fa\u4e8e\u67e5\u8be2 OpLog \u65e5\u5fd7\u96c6\u5408\u5b9e\u73b0\uff0c\u4e3b\u8981\u9762\u5411 MongoDB \u7684\u65e9\u671f\u7248\u672c\uff1b\u7b2c\u4e8c\u9636\u6bb5\u5347\u7ea7\u5230\u4e86\u57fa\u4e8e MongoDB 3.6 \u63d0\u4f9b\u7684 Change Stream API \u8bbe\u8ba1\uff1b\u5728\u7b2c\u4e09\u9636\u6bb5\uff0c\u4e5f\u5c31\u662f\u6700\u65b0\u7684\u7248\u672c\u4e2d\uff0cFlink CDC \u793e\u533a\u5b9e\u73b0\u4e86\u57fa\u4e8e FLIP-27 \u548c\u589e\u91cf\u5feb\u7167\u7b97\u6cd5\u7684\u8bbe\u8ba1\u3002<\/p>\n<h3>\u7b2c\u4e00\u9636\u6bb5\uff1a\u57fa\u4e8e OpLog \u7684\u8bbe\u8ba1\u65b9\u6848<\/h3>\n<p>\u65e9\u671f\u7684 MongoDB \u6ca1\u6709\u4e3a\u53d8\u5316\u76d1\u6d4b\u7684\u9700\u6c42\u8bbe\u7f6e\u7279\u522b\u7684 API\u3002\u4f46\u4e3a\u4e86\u652f\u6301\u4e3b\u2014\u526f\u8282\u70b9\u5206\u5e03\u5f0f\u90e8\u7f72\u60c5\u51b5\u4e0b\u7684\u6570\u636e\u540c\u6b65\u548c\u6545\u969c\u6062\u590d\uff0cMongoDB \u4f1a\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6240\u6709\u6587\u6863\u64cd\u4f5c\u8bb0\u5f55\u5199\u5165\u4e00\u4e2a\u7279\u6b8a\u7684\u7cfb\u7edf\u96c6\u5408 sys.oplog [3]\u3002\u6bcf\u6761\u8bb0\u5f55\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n\u00a0 &quot;ts&quot;: Timestamp(1625660877, 2),\n\u00a0 &quot;t&quot;: NumberLong(2),\n\u00a0 &quot;h&quot;: NumberLong(&quot;5521980394145765083&quot;),\n\u00a0 &quot;v&quot;: 2,\n\u00a0 &quot;op&quot;: &quot;i&quot;,\n\u00a0 &quot;ns&quot;: &quot;test.users&quot;,\n\u00a0 &quot;ui&quot;: UUID(&quot;edabbd93-76eb-42be-b54a-cdc29eb1f267&quot;),\n\u00a0 &quot;wall&quot;: ISODate(&quot;2021-07-07T12:27:57.689Z&quot;),\n\u00a0 &quot;o&quot;: {\n\u00a0 \u00a0 \u00a0 &quot;_id&quot;: ObjectId(&quot;60e59dcd46db1fb4605f8b18&quot;),\n\u00a0 \u00a0 \u00a0 &quot;name&quot;: &quot;1&quot;\n\u00a0 }\n}<\/code><\/pre>\n<p>\u5176\u4e2d ts \u6bb5\u7528\u4e8e\u8bb0\u5f55\u64cd\u4f5c\u53d1\u751f\u7684\u552f\u4e00\u65f6\u95f4\u6233\uff08\u7b2c\u4e00\u4f4d\u4e3a Unix epoch \u65f6\u95f4\u6233\uff0c\u7b2c\u4e8c\u4f4d\u4e3a\u8fd9\u4e00\u79d2\u5185\u7684\u7248\u672c\u53f7\uff09 \uff1bns \u8bb0\u5f55\u4e86\u64cd\u4f5c\u7684\u6570\u636e\u5e93\u548c\u96c6\u5408\u3001op \u662f\u8fdb\u884c\u7684\u64cd\u4f5c\uff08\u4f8b\u5982 i\u4ee3\u8868\u63d2\u5165\uff09\u3001o \u662f\u88ab\u63d2\u5165\u7684\u6587\u6863\u3002\u8fde\u63a5\u5668\u53ea\u9700\u6301\u7eed\u67e5\u8be2 OpLog \u96c6\u5408\uff0c\u5373\u53ef\u83b7\u53d6\u65f6\u95f4\u987a\u5e8f\u7684\u6700\u65b0\u6570\u636e\uff0c\u5e76\u4ea7\u751f\u5bf9\u5e94\u7684\u65e5\u5fd7\u6d41\u3002<\/p>\n<p>\u9700\u8981\u7559\u610f\u7684\u662f\uff0cMongoDB \u51fa\u4e8e\u65e5\u5fd7\u8bb0\u5f55\u5f00\u9500\u7684\u8003\u91cf\uff0c\u53ea\u4f1a\u8bb0\u5f55\u66f4\u65b0\u64cd\u4f5c\u53d1\u751f\u53d8\u5316\u7684\u5b57\u6bb5\uff1b\u5220\u9664\u64cd\u4f5c\u4e2d\u53ea\u5305\u542b\u88ab\u5220\u9664\u6587\u6863\u7684 _id \u5b57\u6bb5\u3002\u56e0\u6b64\u8fd9\u7c7b\u57fa\u4e8e OpLog \u7684 CDC \u5b9e\u73b0\u9700\u8981\u989d\u5916\u7684\u64cd\u4f5c\uff08\u4f8b\u5982\uff0c\u5728 Update \u540e\u67e5\u8be2\u5b8c\u6574\u6587\u6863\u4fe1\u606f\uff09\u624d\u80fd\u4ea7\u751f Flink Upsert\uff08\u5305\u62ec Insert\u3001Update After\u3001Delete\uff09\u4e8b\u4ef6\u6d41\u3002\u7531\u4e8e OpLog \u5e76\u4e0d\u8bb0\u5f55\u66f4\u65b0\u524d\u53ca\u5220\u9664\u524d\u7684\u6587\u6863\u6570\u636e\uff0c\u8fd9\u7c7b CDC \u901a\u5e38\u4e0d\u80fd\u4ea7\u751f Update Before \u4e8b\u4ef6\u3002<\/p>\n<p>\u9664\u6b64\u4e4b\u5916\uff0cMongoDB \u6570\u636e\u5e93\u7684\u6bcf\u4e2a\u5206\u7247\u90fd\u6709\u81ea\u5df1\u7684 OpLog \u96c6\u5408\uff0c\u56e0\u6b64\u8fde\u63a5\u5668\u9700\u8981\u540c\u65f6\u548c\u6bcf\u4e2a\u5206\u7247\u5efa\u7acb\u8fde\u63a5\u5e76\u5904\u7406\u540c\u6b65\u95ee\u9898\uff0c\u5b9e\u73b0\u8f83\u4e3a\u7e41\u7410\u3002<\/p>\n<h3>\u7b2c\u4e8c\u9636\u6bb5\uff1a\u57fa\u4e8e Change Stream API \u8bbe\u8ba1\u65b9\u6848<\/h3>\n<p>MongoDB 3.6 \u5f15\u5165\u4e86\u65b0\u7684 Change Stream \uff08\u53d8\u66f4\u6d41\uff09API [4]\uff0c\u652f\u6301\u6570\u636e\u5e93\u3001\u96c6\u5408\u5c42\u9762\u7684\u53d8\u66f4\u4fe1\u606f\u8ba2\u9605\uff0c\u5e76\u63d0\u4f9b\u4e86\u57fa\u4e8e Resume Token \u7684\u65ad\u70b9\u7eed\u4f20\u673a\u5236\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 db.&lt;collection_name&gt;.watch()\uff0c\u5c31\u53ef\u4ee5\u8ba2\u9605\u5bf9\u5e94\u96c6\u5408\u7684\u64cd\u4f5c\u53d8\u66f4\uff0c\u8fd4\u56de\u7684\u6bcf\u6761\u53d8\u66f4\u8bb0\u5f55\u6570\u636e\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n  \/\/ Resume Token\n  _id: { _data:\u00a0'...' },\n\n  \/\/ \u64cd\u4f5c\u7c7b\u578b\n  operationType:\u00a0'insert',\n\n  \/\/ oplogs \u4e2d\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\n  clusterTime:\u00a0Timestamp({\u00a0t:\u00a01686638232,\u00a0i:\u00a01\u00a0}),\n\n  \/\/ \u7cbe\u5ea6\u66f4\u9ad8\u7684\u65f6\u95f4\u6233\uff0cMongoDB 6.0 \u540e\u53ef\u7528\n  wallTime:\u00a0ISODate(&quot;2023-06-13T06:37:12.290Z&quot;),\n\n  \/\/ \u63d2\u5165\u7684\u5b8c\u6574\u6587\u6863\u4fe1\u606f\n  fullDocument: {\n    _id:\u00a0ObjectId(&quot;64880e8a9f46de45aa2630a4&quot;),\u00a0\n    fieldKey:\u00a0'fieldValue'\n  },\n\n  \/\/ \u66f4\u65b0\u7684 database \u548c collection\n\u00a0 ns: {\u00a0db:\u00a0'testdb',\u00a0coll:\u00a0'testtable'\u00a0},\n\n  \/\/ \u63d2\u5165\u6587\u6863\u7684\u552f\u4e00 ID\n  \/\/ \u5206\u7247\u96c6\u5408\u4e2d\u8fd8\u5305\u62ec\u5206\u7247\u952e\n\u00a0 documentKey: {\u00a0_id:\u00a0ObjectId(&quot;64880e8a9f46de45aa2630a4&quot;) }\n}<\/code><\/pre>\n<p>\u76f8\u6bd4\u4e8e\u8bfb\u53d6 Oplog \u7684\u65b9\u5f0f\uff0c\u57fa\u4e8e\u53d8\u66f4\u6d41 API \u7684 CDC \u5177\u6709\u8fd9\u4e9b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\u5bf9\u5206\u7247\u96c6\u7fa4\u652f\u6301\u66f4\u597d\u3002\u8981\u8ba2\u9605\u5206\u7247\u96c6\u5408\u7684\u5168\u90e8\u53d8\u66f4\u64cd\u4f5c\uff0c\u4e5f\u53ea\u9700\u8981\u5efa\u7acb\u4e00\u4e2a\u53d8\u66f4\u6d41\u6e38\u6807\uff1b<\/li>\n<li>\u65b9\u4fbf\u8fdb\u884c\u6062\u590d\u3002\u53ea\u9700\u8981\u8bb0\u5f55\u6bcf\u6761\u8bb0\u5f55\u7684 Resume Token\uff0c\u5373\u53ef\u5728\u6709\u6548\u671f\u9650\u5185\u4efb\u610f\u56de\u6eaf\uff1b<\/li>\n<li>\u652f\u6301\u81ea\u52a8\u83b7\u53d6\u53d8\u66f4\u540e\u5b8c\u6574\u6587\u6863\u3002\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u914d\u7f6e\u83b7\u53d6\u5305\u542b\u66f4\u65b0\u540e\u5b8c\u6574\u6587\u6863\u7684\u53d8\u66f4\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<p>\u65e9\u671f\u7248\u672c\u7684 MongoDB CDC \u5c31\u901a\u8fc7\u53d8\u66f4\u6d41 API \u5b9e\u73b0\u4e86\u6d41\u5f0f\u66f4\u65b0\u7684\u8ba2\u9605\u3002<\/p>\n<h3>\u7b2c\u4e09\u9636\u6bb5\uff1a\u57fa\u4e8e\u589e\u91cf\u5feb\u7167\u7b97\u6cd5\u7684\u8bbe\u8ba1\u65b9\u6848<\/h3>\n<p>CDC \u7684\u53d8\u66f4\u76d1\u6d4b\u64cd\u4f5c\u901a\u5e38\u5206\u4e3a\u4e24\u6b65\uff1a\u7b2c\u4e00\u6b65\u662f\u5728\u542f\u52a8\u65f6\u5bf9\u5f53\u524d\u6570\u636e\u5e93\u4e2d\u7684\u72b6\u6001\u8fdb\u884c\u5b8c\u6574\u5feb\u7167\uff08Snapshot\uff09\uff0c\u7b2c\u4e8c\u6b65\u662f\u76d1\u63a7\u5b9e\u65f6\u7684\u6d41\u5f0f\u6570\u636e\u53d8\u66f4\u3002\u65e9\u671f\u7248\u672c\u7684\u5feb\u7167\u9636\u6bb5\u4e3a\u5355\u5e76\u53d1\u8bfb\u53d6\uff0c\u4e14\u4e0d\u652f\u6301 Checkpoint \u4e0e\u6545\u969c\u6062\u590d\u3002\u8fd9\u610f\u5473\u7740\u5728\u6570\u636e\u91cf\u5f88\u5927\u65f6\uff0c\u5feb\u7167\u9636\u6bb5\u6267\u884c\u5c06\u82b1\u8d39\u76f8\u5f53\u957f\u7684\u65f6\u95f4\uff0c\u4e14\u4e00\u65e6\u5931\u8d25\u5fc5\u987b\u4ece\u5934\u5f00\u59cb\u3002FLIP-27 \u63d0\u6848 [5] \u7ed9\u51fa\u4e86\u4e0b\u4e00\u4ee3 Flink Source \u67b6\u6784\uff0c\u5c06\u4ece\u6e90\u8bfb\u53d6\u6570\u636e\u7684\u804c\u8d23\u62bd\u8c61\u4e3a\u4e24\u4e2a\u6a21\u5757\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173150\" alt=\"2\" title=\"2\" loading=\"lazy\"><\/p>\n<ol>\n<li>SplitEnumerator\uff0c\u8d1f\u8d23\u7ba1\u7406\u5e76\u5c06\u6570\u636e\u6e90\u62c6\u5206\u4e3a\u591a\u4e2a\u62bd\u8c61\u5206\u7247\uff1b<\/li>\n<li>Reader\uff0c\u8d1f\u8d23\u4ece\u62bd\u8c61\u5206\u7247\u4e2d\u8bfb\u53d6\u5b9e\u9645\u7684\u6570\u636e\u3002<\/li>\n<\/ol>\n<p>\u8fd0\u884c\u65f6\uff0c\u8bfb\u53d6\u6570\u636e\u7684\u8fc7\u7a0b\u4e5f\u5206\u4e3a\u4e24\u4e2a\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u4e00\u5f00\u59cb\uff0c\u6267\u884c SplitEnumerator\uff0c\u5c06\u5168\u90e8\u6570\u636e\u62c6\u5206\u6210\u62bd\u8c61\u5206\u7247\uff1b<\/li>\n<li>\u5c06\u6bcf\u4e2a\u62bd\u8c61\u5206\u7247\u5206\u914d\u7ed9 Reader\uff0c\u5e76\u6267\u884c\u5b9e\u9645\u7684\u8bfb\u53d6\u903b\u8f91\u3002<\/li>\n<\/ol>\n<p>Enumerator \u548c\u6bcf\u4e2a Reader \u5404\u6709\u81ea\u5df1\u7684 Checkpoints\uff0c\u5747\u652f\u6301\u6545\u969c\u6062\u590d\u3002\u5404 Source \u4e5f\u65e0\u9700\u81ea\u5df1\u7ef4\u62a4\u5206\u7247\u3001\u5e76\u53d1\u6a21\u578b\u95ee\u9898\u3002<\/p>\n<p>MongoDB CDC \u5728 Flink CDC 2.3 \u7248\u672c\u5f00\u59cb\u8fc1\u79fb\u5230\u8fd9\u4e00\u65b0\u7684 Source \u67b6\u6784\u3002\u5728\u8fdb\u884c\u5feb\u7167\u65f6\uff0cMongoDB CDC \u9700\u8981\u5c06\u5f85\u5feb\u7167\u7684\u96c6\u5408\u6309 Key \u8fdb\u884c\u62c6\u5206\uff0c\u7b56\u7565\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u76ee\u6807\u96c6\u5408\u4e3a\u5206\u7247\u96c6\u5408\uff0c\u5219\u6309\u7167\u5b9e\u9645\u7684\u7269\u7406\u5206\u7247\u8fdb\u884c\u62c6\u5206\uff1b<\/li>\n<li>\u5426\u5219\uff0c\u4f7f\u7528 MongoDB \u63d0\u4f9b\u7684 splitVector \u51fd\u6570\u5747\u5300\u5206\u7247\uff1b<\/li>\n<li>\u5982\u679c\u65e0\u6cd5\u8c03\u7528 splitVector \u5219\u4f7f\u7528\u542f\u53d1\u5f0f\u7b97\u6cd5\uff0c\u62bd\u6837\u4f30\u8ba1\u6587\u6863\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5e76\u6309\u6570\u636e\u884c\u6570\u8fdb\u884c\u62c6\u5206\u3002<\/li>\n<\/ul>\n<p>\u5f97\u5230\u7684\u6bcf\u4e2a\u5206\u7247\u90fd\u5bf9\u5e94\u4e00\u4e2a MinKey \u548c MaxKey \u6307\u5b9a\u7684\u6587\u6863\u8303\u56f4\uff0c\u79f0\u4f5c\u5feb\u7167\u5206\u7247\uff08SnapshotSplit\uff09\u3002<\/p>\n<p>\u800c\u5728\u6d41\u5f0f\u8bfb\u53d6\u9636\u6bb5\uff0c\u6211\u4eec\u53ea\u9700\u8981\u6307\u5b9a\u6570\u636e\u6d41\u7684\u8d77\u6b62\u65f6\u95f4\u70b9\uff0c\u786e\u5b9a\u8981\u76d1\u63a7\u7684\u6d41\u6570\u636e\u8bb0\u5f55\u8303\u56f4\u5373\u53ef\u3002\u8fd9\u6837\u7684\u5206\u7247\u79f0\u4e3a\u6d41\u5f0f\u5206\u7247\uff08StreamSplit\uff09\u3002\u5982\u679c\u5c06\u505c\u6b62\u65f6\u95f4\u70b9\u8bbe\u5b9a\u4e3a MAX_TIMESTAMP\uff08\u53ef\u8868\u793a\u7684\u6700\u5927\u65f6\u95f4\u6233\uff09\uff0c\u5219\u4ee3\u8868\u8fd9\u662f\u4e00\u4e2a\u4e0d\u9650\u5b9a\u505c\u6b62\u65f6\u95f4\u70b9\u7684\u65e0\u754c\u6d41\u5206\u7247\u3002<\/p>\n<p>\u76ee\u524d\uff0c\u542f\u7528\u4e86\u589e\u91cf\u5feb\u7167\u529f\u80fd\u7684 MongoDB CDC \u4f7f\u7528 FLIP-27 \u63a8\u8350\u7684 Source \u63a5\u53e3\u5b9a\u4e49\u65b9\u5f0f SplitEnumerator \u4f1a\u9996\u5148\u62c6\u5206\u5b58\u91cf\u6570\u636e\uff0c\u4ea7\u751f\u5feb\u7167\u5206\u7247\uff1b\u5728\u76d1\u6d4b\u5230\u5168\u90e8\u7684\u5feb\u7167\u5206\u7247\u5747\u5b8c\u6210\u4e4b\u540e\uff0c\u624d\u4f1a\u7ee7\u7eed\u4ea7\u751f\u6d41\u5f0f\u5206\u7247\uff0c\u8f6c\u4e3a\u6d41\u5f0f\u8bfb\u53d6\u3002<\/p>\n<p>TaskFetcher \u5728\u6536\u5230\u5f85\u5904\u7406\u7684\u5206\u7247\u540e\uff0c\u5c31\u4f1a\u6309\u7167\u5176\u7c7b\u578b\uff08\u5feb\u7167\u6216\u6d41\u5f0f\uff09\u5c06\u5176\u4f20\u9012\u7ed9\u5bf9\u5e94\u7684 SplitFetchTask \u8fdb\u884c\u5b9e\u9645\u7684\u8bfb\u53d6\u5de5\u4f5c\u3002ScanSplitFetchTask \u4f1a\u6839\u636e\u4f20\u5165\u7684\u5feb\u7167\u5206\u7247\u754c\u5b9a\u7684 Key \u8303\u56f4\u4ece MongoDB \u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u5b58\u91cf\u6570\u636e\uff1bStreamSplitFetchTask \u5219\u4f1a\u8ba2\u9605 Change Stream API \u6765\u83b7\u53d6\u53d8\u66f4\u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173151\" alt=\"3\" title=\"3\" loading=\"lazy\"><\/p>\n<p>\u6240\u6709 SplitFetchTask \u4ea7\u751f\u7684\u8bb0\u5f55\u90fd\u4f1a\u88ab\u653e\u5165\u4e8b\u4ef6\u961f\u5217\u4e2d\uff0c\u5e76\u7531 RecordEmitter \u8f6c\u53d1\u7ed9\u6307\u5b9a\u7684\u53cd\u5e8f\u5217\u5316\u5668\uff1b\u53cd\u5e8f\u5217\u5316\u5668\u5c06\u5176\u8f6c\u5316\u4e3a\u6700\u7ec8\u7684 RowData\uff0c\u4ea4\u7ed9\u4e0b\u6e38\u6d88\u8d39\u3002<\/p>\n<p>\u51fa\u4e8e\u517c\u5bb9\u6027\u8003\u8651\uff0c\u4f7f\u7528\u4f20\u7edf SourceFunction \u5b9a\u4e49\u7684 MongoDB Source \u4ecd\u7136\u5b58\u5728\u4e8e\u76ee\u524d\u7248\u672c\u7684 MongoDB CDC \u4e2d\uff0c\u7528\u4e8e\u975e\u589e\u91cf\u5feb\u7167\u6a21\u5f0f\u3002\u4f46\u8fd9\u79cd\u5b9a\u4e49\u65b9\u5f0f\u5df2\u88ab Flink \u6807\u8bb0\u4e3a\u4e0d\u63a8\u8350\u7684\uff08Deprecated\uff09\u7528\u6cd5\uff0c\u4e14\u5c06\u6765\u53ef\u80fd\u4f1a\u88ab\u5220\u9664\u3002<\/p>\n<h2>MongoDB CDC \u7684\u5e95\u5c42\u5b9e\u73b0<\/h2>\n<p>\u76ee\u524d\u7248\u672c\u7684 Mongo CDC \u5b9e\u73b0\u5927\u91cf\u4f9d\u8d56 MongoDB \u5e95\u5c42\u4e3a\u53d8\u5316\u6570\u636e\u7684\u6355\u83b7\u63d0\u4f9b\u7684\u652f\u6301\uff0c\u5982\u53d8\u66f4\u6d41 API\u3001\u5206\u7247\u96c6\u5408\u652f\u6301\u3001\u53d8\u66f4\u524d\u540e\u5feb\u7167\u7b49\u529f\u80fd\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u529f\u80fd\u7684\u5e95\u5c42\u673a\u5236\uff0c\u5bf9\u5e95\u5c42\u539f\u7406\u4e0d\u611f\u5174\u8da3\u7684\u8bfb\u8005\u53ef\u4ee5\u5feb\u901f\u8df3\u8fc7\u672c\u7ae0\u8282\u3002<\/p>\n<h3>\u57fa\u4e8e Change Stream API \u7684 CDC \u6280\u672f<\/h3>\n<p>\u4e0a\u6587\u63d0\u5230\uff0c\u57fa\u4e8e\u53d8\u66f4\u6d41 API \u6355\u83b7\u53d8\u66f4\u6570\u636e\u76f8\u6bd4\u4e8e\u8bfb\u53d6 OpLog \u7684\u5b9e\u73b0\u66f4\u7b80\u5355\u6709\u6548\u3002\u7136\u800c\u5b9e\u9645\u4e0a MongoDB \u7684\u53d8\u66f4\u6d41 API \u5e95\u5c42\u4e5f\u662f\u57fa\u4e8e OpLog \u5b9e\u73b0\u7684\uff0c\u662f\u5728 OpLog \u4e0a\u63d0\u4f9b\u7684\u4e00\u5c42\u5c01\u88c5\u3002\u5b83\u4eec\u5b58\u5728\u4ee5\u4e0b\u7684\u5bf9\u5e94\u5173\u7cfb\uff1a<\/p>\n<ul>\n<li>\u53d8\u66f4\u6d41\u4e2d\u7684\u6bcf\u6761\u8bb0\u5f55\u90fd\u6709\u7740\u552f\u4e00\u7684 _id\uff08\u5373 Resume Token\uff09\uff0c\u5bf9\u5e94 OpLog \u96c6\u5408\u4e2d\u7684\u4e00\u6b21\u64cd\u4f5c\u65e5\u5fd7\uff1b<\/li>\n<li>\u53d8\u66f4\u6d41\u4e2d\u7684 namespace\u3001updateDescription\u3001operationType \u7b49\u5b57\u6bb5\u548c OpLog \u4e2d\u8bb0\u5f55\u7684\u5185\u5bb9\u4e00\u4e00\u5bf9\u5e94\u3002<\/li>\n<\/ul>\n<p>\u5728\u6b64\u57fa\u7840\u4e0a\uff0c\u53d8\u66f4\u6d41 API \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4fbf\u5229\uff1a<\/p>\n<ul>\n<li>\u652f\u6301\u901a\u8fc7\u4efb\u610f\u6709\u6548\u7684 Resume Token \u56de\u6eaf\u53d8\u66f4\u6d41<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u901a\u8fc7 Resume Token\uff08\u5373 OpLog \u8bb0\u5f55\u7684_id \u5b57\u6bb5\uff09\u53ef\u4ee5\u67e5\u627e\u51fa OpLog \u4e2d\u5bf9\u5e94\u7684\u64cd\u4f5c\u8bb0\u5f55\uff0c\u4ece\u800c\u81ea\u5bf9\u5e94\u4f4d\u70b9\u5f00\u59cb\u6d88\u8d39\u63a5\u4e0b\u6765\u7684\u53d8\u66f4\u6570\u636e\u3002<\/p>\n<ul>\n<li>\u652f\u6301\u4ece\u7279\u5b9a\u7684 Timestamp \u5f00\u59cb\u56de\u6eaf\u53d8\u66f4\u6d41<\/li>\n<\/ul>\n<p>MongoDB \u63d0\u4f9b\u4e86 startAtOperationTime \u9009\u9879\u5f00\u542f\u53d8\u66f4\u6d41\uff0c\u652f\u6301\u4ece\u7ed9\u5b9a\u7684\u65f6\u95f4\u6233\u5904\u5f00\u59cb\u8bfb\u53d6\u53d8\u5316\u3002\u7531\u4e8e OpLog \u96c6\u5408\u4e2d\u5305\u542b\u4e86\u6240\u6709\u53d8\u66f4\u7684\u65f6\u95f4\u6233\uff0c\u4e14\u6309\u7167\u65f6\u95f4\u6709\u5e8f\u6392\u5217\uff0c\u6240\u4ee5\u53ea\u9700\u8fdb\u884c\u4e8c\u5206\u67e5\u627e\u5373\u53ef\u5b9a\u4f4d\u5230\u7ed9\u5b9a\u65f6\u95f4\u6233\u5bf9\u5e94\u53d8\u66f4\u6d41\u4e2d\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u76ee\u524d\u7684 MongoDB \u5b9e\u73b0\u6709\u4e2a\u7279\u6b8a\u7684\u9650\u5236\uff1a\u5982\u679c\u6307\u5b9a\u7684 Timestamp \u53d1\u751f\u5728\u8fc7\u53bb\uff08\u5373\u9700\u8981\u5728 OpLog \u4e2d\u67e5\u627e\u53d8\u66f4\u7684\u8d77\u59cb\u70b9\uff09\uff0c\u5219\u9700\u8981\u4fdd\u8bc1\u8fd9\u4e00 Timestamp \u5728 OpLog \u8bb0\u5f55\u7684\u65e5\u5fd7\u8303\u56f4\u5185\u3002\u8fd9\u4e00\u9650\u5b9a\u5f88\u597d\u7406\u89e3\uff1a\u5982\u679c\u7ed9\u5b9a\u7684\u65f6\u95f4\u6233\u5728\u672a\u6765\uff0c\u5219\u65e0\u9700\u8fdb\u884c\u4e8c\u5206\u67e5\u627e\uff0c\u53ea\u9700\u7b49\u5f85\u8be5\u65f6\u95f4\u6233\u4e4b\u540e\u7684\u53d8\u66f4\u6570\u636e\u5230\u6765\u518d\u5f00\u59cb\u6355\u83b7\u5373\u53ef\uff1b\u4f46\u5982\u679c\u7ed9\u5b9a\u7684\u65f6\u95f4\u6233\u5728\u8fc7\u53bb\uff0c\u5219\u53ea\u80fd\u5728 OpLog \u8bb0\u5f55\u7684\u8303\u56f4\u5185\u624d\u80fd\u8fdb\u884c\u53ef\u9760\u7684\u4e8c\u5206\u67e5\u627e\uff1b\u5982\u679c\u8be5\u65f6\u95f4\u6233\u6bd4\u5f53\u524d OpLog \u6700\u65e9\u7684\u6570\u636e\u8fd8\u8981\u65e9\uff0c\u5219 MongoDB \u65e0\u6cd5\u786e\u5b9a\u5728\u5b83\u4eec\u4e4b\u95f4\u662f\u5426\u6709\u5176\u4ed6\u53d8\u66f4\uff1b\u5373\u4f7f\u6709\uff0c\u4e5f\u65e0\u6cd5\u4ece\u8be5\u5904\u6062\u590d\u4e86\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u53d8\u66f4\u5bf9\u5e94\u7684 OpLog \u65e5\u5fd7\u5df2\u7ecf\u88ab\u6e05\u9664\u4e86\u3002MongoDB \u5728\u9047\u5230\u8fd9\u79cd\u60c5\u51b5\u65f6\u4f1a\u62d2\u7edd\u56de\u6eaf\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173152\" alt=\"4\" title=\"4\" loading=\"lazy\"><\/p>\n<ul>\n<li>\u652f\u6301 Full Document Lookup \u529f\u80fd<\/li>\n<\/ul>\n<p>OpLog \u4e3a\u4e86\u8282\u7ea6\u5b58\u50a8\u5f00\u9500\uff0c\u53ea\u4f1a\u5b58\u50a8\u6700\u5c11\u5fc5\u8981\u7684\u53d8\u66f4\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u6b21\u66f4\u65b0\u64cd\u4f5c\uff0cMongoDB \u5e76\u4e0d\u4f1a\u5c06\u53d8\u66f4\u540e\u5b8c\u6574\u7684\u6587\u6863\u8bb0\u5f55\u4e0b\u6765\uff0c\u800c\u662f\u53ea\u5b58\u50a8\u90a3\u4e9b\u53d1\u751f\u4e86\u53d8\u5316\u7684\u5b57\u6bb5\uff1b\u5373 OpLog \u91cc\u9762\u7684\u66f4\u65b0\u64cd\u4f5c\u65e5\u5fd7\u4e2d\u8bb0\u5f55\u7684\u4e0d\u662f\u5b8c\u6574\u7684\u6587\u6863\uff0c\u4e0d\u662f\u5f88\u5b9e\u7528\u3002\u5982\u679c\u9700\u8981\u5b8c\u6574\u7684\u6587\u6863\u4fe1\u606f\uff0c\u8fd8\u9700\u8981\u5bf9 OpLog \u4e2d\u6bcf\u6761\u66f4\u65b0\u8bb0\u5f55\u624b\u52a8\u67e5\u627e\u4e00\u6b21\u3002<\/p>\n<p>\u53d8\u66f4\u6d41 API \u5219\u5c06\u8fd9\u4e00\u67e5\u8be2\u9700\u6c42\u8fdb\u884c\u4e86\u5305\u88c5\uff1a\u53ea\u9700\u4f7f\u7528 fullDocument: updateLookup\u53c2\u6570\uff0cMongoDB \u5c31\u4f1a\u5728\u8bfb\u53d6\u5230 Update \u4e8b\u4ef6\u65f6\uff0c\u5728\u8fd4\u56de\u7684\u8bb0\u5f55\u4e2d\u8865\u5145\u5b8c\u6574\u7684\u6587\u6863\uff0c\u5e76\u8bb0\u5f55\u5728 fullDocument \u5b57\u6bb5\u4e2d\u3002\u6ce8\u610f\u8fd9\u4ec5\u9002\u7528\u4e8e Update \u7c7b\u578b\u7684\u64cd\u4f5c\uff0c\u56e0\u4e3a Insert \u64cd\u4f5c\u603b\u662f\u5305\u542b\u5b8c\u6574\u6587\u6863\u4fe1\u606f\uff08\u56e0\u4e3a\u63d2\u5165\u64cd\u4f5c\u524d\u8be5\u6587\u6863\u8fd8\u4e0d\u5b58\u5728\uff09\uff1bDelete \u64cd\u4f5c\u603b\u662f\u53ea\u5305\u542b _id \u4fe1\u606f\uff08\u56e0\u4e3a\u5df2\u88ab\u5220\u9664\u7684\u6587\u6863\u65e0\u6cd5\u518d\u67e5\u627e\uff09\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cMongoDB \u4e0d\u4fdd\u8bc1 updateLookup \u7ed9\u51fa\u7684\u6587\u6863\u4e00\u5b9a\u4e0e\u8be5\u66f4\u65b0\u64cd\u4f5c\u7684\u7ed3\u679c\u5bf9\u5e94\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u8fde\u7eed\u5bf9\u540c\u4e00\u6587\u6863\u8fdb\u884c Update \u64cd\u4f5c\u4ea7\u751f\u7684\u53d8\u66f4\u6d41\u8bb0\u5f55\uff0c\u8f83\u65e9\u53d8\u66f4\u67e5\u51fa\u7684 FullDocument \u53ef\u80fd\u88ab\u8f83\u665a\u53d8\u66f4\u7684\u5185\u5bb9\u8986\u76d6\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173153\" alt=\"5\" title=\"5\" loading=\"lazy\"><\/p>\n<p>\u8fd9\u548c\u624b\u5de5\u8bfb\u53d6 OpLog\u3001\u518d\u624b\u52a8\u8bfb\u53d6 Full Document \u7684\u95ee\u9898\u662f\u4e00\u6837\u7684\u3002\u4e0d\u8fc7\u7531\u4e8e MongoDB \u7684\u6bcf\u4e2a\u6587\u6863\u90fd\u5177\u6709\u552f\u4e00\u7684 _id\u5b57\u6bb5\uff0c\u56e0\u6b64\u5728 Upsert \u6a21\u5f0f\u7684\u6570\u636e\u6d41\u4e2d\u8fd9\u4e00\u95ee\u9898\u4e0d\u4f1a\u5bf9\u7ed3\u679c\u4ea7\u751f\u592a\u5927\u5f71\u54cd\u3002<\/p>\n<h3>MongoDB \u5206\u7247\u96c6\u5408\u7684\u652f\u6301<\/h3>\n<p>MongoDB \u7684\u6bcf\u4e2a\u5206\u7247\u8282\u70b9\u90fd\u5177\u6709\u81ea\u5df1\u7684 OpLog \u96c6\u5408\uff0c\u5206\u522b\u8bb0\u5f55\u5c5e\u4e8e\u81ea\u5df1\u5206\u7247\u7684\u53d8\u66f4\u6570\u636e\uff1b\u8fd9\u610f\u5473\u7740\u5982\u679c\u9700\u8981\u57fa\u4e8e OpLog \u76d1\u63a7\u5206\u7247\u96c6\u5408\u7684\u53d8\u66f4\uff0c\u5219\u9700\u8981\u5e76\u884c\u5730\u76d1\u63a7\u6bcf\u4e2a\u5206\u7247\u7684 OpLog \u96c6\u5408\uff0c\u5e76\u624b\u52a8\u5904\u7406\u540c\u6b65\u95ee\u9898\u3001\u6309\u7167\u65f6\u95f4\u6233\u5bf9\u6765\u81ea\u4e0d\u540c\u5206\u7247\u7684\u53d8\u66f4\u65e5\u5fd7\u8fdb\u884c\u6392\u5e8f\u5e76\u8f93\u51fa\uff0c\u96be\u5ea6\u548c\u98ce\u9669\u90fd\u6bd4\u8f83\u9ad8\u3002<\/p>\n<p>\u800c\u53d8\u66f4\u6d41 API \u5bf9\u5206\u7247\u96c6\u5408\u7684\u53d8\u66f4\u6355\u83b7\u8fdb\u884c\u4e86\u5c01\u88c5\uff0c\u4f7f\u5176\u66f4\u52a0\u6613\u7528\u3002\u5373\u4f7f\u901a\u8fc7\u53d8\u66f4\u6d41 API \u8ba2\u9605\u7684\u662f\u5206\u7247\u5b58\u50a8\u7684\u96c6\u5408\uff0c\u4e5f\u53ea\u4f1a\u4ea7\u751f\u552f\u4e00\u4e00\u4e2a\u53d8\u66f4\u6d41\u6e38\u6807\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u6765\u81ea\u6240\u6709\u5206\u7247\u7684\u53d8\u66f4\u6570\u636e\uff1b\u4e14\u63d0\u4f9b\u4e86\u5f88\u5f3a\u7684\u6709\u5e8f\u6027\u4fdd\u8bc1\uff0c\u5373\u4ea7\u751f\u7684\u53d8\u66f4\u6570\u636e\u603b\u662f\u65f6\u95f4\u6709\u5e8f\u7684\u3002<\/p>\n<p>MongoDB \u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u7ed9\u5206\u7247\u96c6\u5408\u8bbe\u8ba1\u4e00\u4e2a\u4e2d\u5fc3\u5316\u7684\u7ba1\u7406\u8282\u70b9\uff0c\u8d1f\u8d23\u4ece\u5404\u4e2a\u8282\u70b9\u83b7\u53d6\u8bb0\u5f55\u5e76\u6392\u5e8f\uff0c\u4ece\u800c\u4ea7\u751f\u6709\u5e8f\u7684\u8f93\u51fa\u3002\u6bcf\u4e2a\u8282\u70b9\u5185\u90e8\u7684 OpLog \u8bb0\u5f55\u603b\u662f\u6709\u5e8f\u7684\u3002\u90a3\u4e48\u5728\u6240\u6709\u8282\u70b9\u90fd\u7ed9\u51fa\u4e00\u6761\u8be5\u8282\u70b9\u5185\u6700\u65e9\u7684\u8bb0\u5f55\u4e4b\u540e\uff0c\u5176\u4e2d\u6700\u65e9\u7684\u90a3\u4e00\u4e2a\u5c31\u53ef\u4ee5\u8ba4\u4e3a\u662f\u5168\u5c40\u6700\u65e9\u503c\uff0c\u53ef\u4ee5\u53d1\u9001\u7ed9\u8ba2\u9605 Change Stream \u7684\u5ba2\u6237\u7aef\u4e86\u3002<\/p>\n<p>\u4f46\u662f\u8fd9\u6837\u5176\u5b9e\u4f1a\u6709\u95ee\u9898\uff1a\u5982\u679c\u5176\u4e2d\u6709\u4e2a\u8282\u70b9\u7684\u6570\u636e\u59cb\u7ec8\u6ca1\u6709\u88ab\u66f4\u65b0\uff0c\u90a3\u4e48\u5b83\u5c31\u4e0d\u4f1a\u7ed9\u51fa\u53d8\u66f4\u8bb0\u5f55\uff1b\u8fd9\u6837\uff0c\u4e2d\u5fc3\u8282\u70b9\u5c31\u65e0\u6cd5\u786e\u8ba4\u8fd9\u4e2a\u8282\u70b9\u5230\u5e95\u662f\u5f88\u4e45\u4ee5\u524d\u6709\u66f4\u65b0\uff0c\u53ea\u662f\u4e00\u76f4\u6ca1\u53d1\u51fa\u6765\u8bb0\u5f55\uff0c\u8fd8\u662f\u786e\u5b9e\u6ca1\u6709\u6570\u636e\uff1b\u8fd9\u6837\u5c31\u65e0\u6cd5\u63a8\u8fdb\u5168\u5c40\u65f6\u95f4\u6233\u4e86\u3002<\/p>\n<p>MongoDB \u5bf9\u8fd9\u4e00\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848\u548c Flink \u7684 Watermark \u673a\u5236\u5f88\u7c7b\u4f3c\uff1aMongoDB \u8981\u6c42\u6bcf\u4e2a\u8282\u70b9\u5373\u4f7f\u6ca1\u6709\u53d8\u66f4\u6570\u636e\uff0c\u4e5f\u9700\u8981\u5b9a\u671f\u5411\u4e2d\u5fc3\u8282\u70b9\u53d1\u9001\u4e00\u6761\u7a7a\u767d\u6307\u4ee4\u3002\u8fd9\u6837\u4e2d\u5fc3\u8282\u70b9\u5c31\u53ef\u4ee5\u786e\u8ba4\u6bcf\u4e2a\u8282\u70b9\u7684\u540c\u6b65\u72b6\u6001\uff0c\u4ece\u800c\u63a8\u8fdb\u5168\u5c40\u65f6\u95f4\u6233\u3002<\/p>\n<h3>\u9ad8\u6548\u5730\u652f\u6301\u53d8\u66f4\u524d\u540e\u5feb\u7167<\/h3>\n<p>Change Stream \u5e95\u5c42\u662f\u57fa\u4e8e OpLog \u5b9e\u73b0\u7684\uff0c\u800c OpLog \u4e0d\u8bb0\u5f55\u66f4\u65b0\u548c\u5220\u9664\u524d\u7684\u6587\u6863\u4fe1\u606f\u3002\u4e3a\u4e86\u652f\u6301\u201c\u83b7\u53d6\u53d8\u66f4\/\u5220\u9664\u524d\u6587\u6863\u201d\u8fd9\u4e00\u9700\u6c42\uff0cMongoDB \u4e0d\u5f97\u4e0d\u989d\u5916\u5728\u67d0\u4e2a\u4f4d\u7f6e\u4fdd\u5b58\u8fd9\u4e00\u4fe1\u606f\u3002\u51fa\u4e8e\u517c\u5bb9\u6027\u7684\u8003\u91cf\u4ee5\u53ca\u50a8\u5b58\u5f00\u9500\u539f\u56e0\uff0cMongoDB \u6ca1\u6709\u9009\u62e9\u4fee\u6539 OpLog \u683c\u5f0f\u6765\u50a8\u5b58\u989d\u5916\u5b57\u6bb5\uff0c\u800c\u662f\u5728\u7279\u6b8a\u7684\u96c6\u5408\u4e2d\u5b58\u50a8\u53d8\u66f4\u524d\u540e\u7684\u6587\u6863\u4fe1\u606f\uff08\u79f0\u4e3a Pre- and Post-Images\uff09\uff0c\u5e76\u63d0\u4f9b\u4e86\u96c6\u5408\u7c92\u5ea6\u7684\u5f00\u5173\u63a7\u5236\u3002<\/p>\n<p>\u7531\u4e8e\u9488\u5bf9\u6bcf\u6b21\u53d8\u66f4\u548c\u5220\u9664\u64cd\u4f5c\u90fd\u8bb0\u5f55\u4e0b\u524d\u540e\u5feb\u7167\u7684\u5f00\u9500\u5e76\u4e0d\u5c0f\uff0c\u6240\u4ee5 MongoDB \u63d0\u4f9b\u4e86\u8bb8\u591a\u5f00\u5173\u9632\u6b62\u72b6\u6001\u81a8\u80c0\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u652f\u6301\u5728\u7cfb\u7edf\u5c42\u9762\u914d\u7f6e\u53d8\u66f4\u524d\u540e\u5feb\u7167\u7684\u8fc7\u671f\u65f6\u95f4\uff1a<\/li>\n<\/ul>\n<pre><code>db.runCommand({\n  setClusterParameter: {\n    changeStreamOptions: {\n      preAndPostImages: {\n        expireAfterSeconds: '600' \/\/ \u8bbe\u5b9a\u8fc7\u671f\u65f6\u95f4\u4e3a 600 \u79d2\n      }\n    }\n  }\n})<\/code><\/pre>\n<ul>\n<li>\u652f\u6301\u5bf9\u6bcf\u4e2a\u96c6\u5408\u5355\u72ec\u914d\u7f6e\u53d8\u66f4\u524d\u540e\u5feb\u7167\u5f00\u542f\u4e0e\u5426\uff1a<\/li>\n<\/ul>\n<pre><code>db.runCommand({\n  collMod: &quot;testtable&quot;, \n  changeStreamPreAndPostImages: {\n    enabled: true \/\/ \u914d\u7f6e\u5bf9 testtable \u96c6\u5408\u4e2d\u7684\u53d8\u66f4\u8bb0\u5f55\u5feb\u7167\n  } \n})<\/code><\/pre>\n<ul>\n<li>\u652f\u6301\u5bf9\u6bcf\u4e2a\u53d8\u66f4\u6d41\u6e38\u6807\u9009\u62e9\u662f\u5426\u8bfb\u53d6\u53d8\u66f4\u524d\u540e\u5feb\u7167\uff1a<\/li>\n<\/ul>\n<pre><code>db.testtable.watch({\n  \/\/ \u914d\u7f6e\u662f\u5426\u8bfb\u53d6\u53d8\u66f4\u540e\u5feb\u7167\n  fullDocument: 'required',\n\n  \/\/ \u914d\u7f6e\u662f\u5426\u8bfb\u53d6\u53d8\u66f4\u524d\u5feb\u7167\n  fullDocumentBeforeChange: 'required'\n})<\/code><\/pre>\n<p>\u4e3a\u4ec0\u4e48\u8981\u540c\u65f6\u5b58\u50a8\u53d8\u66f4\u540e\u7684\u6587\u6863\u5462\uff1f\u4e4b\u524d\u63d0\u5230\u7684\u5c06 FullDocument \u8bbe\u5b9a\u4e3a updateLookup \u7684\u65b9\u6cd5\uff0c\u867d\u7136\u53ef\u4ee5\u5f97\u5230\u53d8\u66f4\u540e\u7684\u5b8c\u6574\u6587\u6863\u4fe1\u606f\uff0c\u4f46\u5374\u4e0d\u80fd\u4fdd\u8bc1\u5f97\u5230\u7684\u4e00\u5b9a\u662f\u8fd9\u4e00\u6b21\u66f4\u65b0\u4e4b\u540e\u7684\u6587\u6863\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u5728\u8fde\u7eed\u8fdb\u884c\u4e24\u6b21\u66f4\u65b0\u64cd\u4f5c\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u524d\u4e00\u6b21\u66f4\u65b0\u64cd\u4f5c\u7684 FullDocument \u88ab\u540e\u4e00\u6b21\u8986\u76d6\u7684\u60c5\u51b5\u3002\u7a76\u5176\u539f\u56e0\uff0c\u662f\u56e0\u4e3a\u8fd9\u4e00\u4fe1\u606f\u662f\u4e8b\u540e\u72ec\u7acb\u67e5\u8be2\uff08Lookup\uff09\u7684\uff0c\u800c\u975e\u548c\u53d8\u66f4\u4e8b\u4ef6\u672c\u8eab\u76f8\u5173\u8054\u3002<\/p>\n<p>\u800c\u53d8\u66f4\u540e\u6587\u6863\u8bb0\u5f55\u662f\u5728\u6bcf\u6b21\u53d8\u66f4\u89e6\u53d1\u5668\u4e2d\u5b58\u50a8\u7684\uff0c\u548c\u7279\u5b9a\u7684 OpLog \u53d8\u66f4\u6761\u76ee\u76f8\u5173\u8054\uff0c\u56e0\u6b64\u53ef\u4ee5\u4fdd\u8bc1\u8bb0\u5f55\u7684\u6587\u6863\u53cd\u6620\u4e86\u8be5\u53d8\u66f4\u7684\u7ed3\u679c\uff1b\u5c06 fullDocument \u9009\u9879\u8bbe\u5b9a\u4e3a required \u6216 whenAvailable \u65f6\uff0c\u5373\u53ef\u8981\u6c42\u4ece\u53d8\u66f4\u540e\u5feb\u7167\u4e2d\u8bfb\u53d6\u8bb0\u5f55\uff0c\u800c\u975e\u8fdb\u884c\u201c\u4e8b\u540e\u67e5\u8be2\u201d\u3002<\/p>\n<p>\u5728\u542f\u7528 scan.full-changelog \u9009\u9879\u65f6\uff0cMongoDB CDC \u4f1a\u8981\u6c42\u4ece\u53d8\u66f4\u540e\u6587\u6863\u8bb0\u5f55\u4e2d\u4ea7\u751f Update After \u4e8b\u4ef6\uff0c\u4ece\u800c\u786e\u4fdd\u6bcf\u6761 Update After \u4e8b\u4ef6\u4e0e\u5b9e\u9645\u53d8\u66f4\u64cd\u4f5c\u4e00\u4e00\u5bf9\u5e94\u3002\u8fd9\u662f\u901a\u8fc7 ChangelogNormalize \u7b97\u5b50\u5c06 Upsert \u6d41\u6b63\u89c4\u5316\u7684\u5b9e\u73b0\u65b9\u5f0f\u65e0\u6cd5\u4fdd\u8bc1\u7684\u3002<\/p>\n<h2>Announce: Flink CDC \u793e\u533a\u65b0\u589e Maintainer \u6210\u5458<\/h2>\n<p>Flink CDC \u793e\u533a\u7684\u5feb\u901f\u53d1\u5c55\u79bb\u4e0d\u5f00\u8d21\u732e\u8005\u4eec\u7684\u65e0\u79c1\u5949\u732e\uff0c\u622a\u6b62\u76ee\u524d\u793e\u533a\u7684\u8d21\u732e\u8005\u5df2\u7ecf\u8d85\u8fc7 100 \u4eba\uff0c\u8d21\u732e\u8005\u7fa4\u4f53\u6301\u7eed\u6269\u5927\u3002\u7ecf\u8fc7 Flink CDC \u793e\u533a Maintainer \u6210\u5458\u63d0\u8bae\uff0c Flink CDC \u793e\u533a\u5df2\u7ecf\u6b63\u5f0f\u9080\u8bf7 whhe (\u5ddd\u7c89) \u52a0\u5165 Flink CDC \u793e\u533a\u7684 Maintainer \u5217\u8868\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173154\" alt=\"6\" title=\"6\" loading=\"lazy\"><\/p>\n<p>\u5ddd\u7c89\u8001\u5e08\u662f OceanBase \u5f00\u6e90\u56e2\u961f\u7684\u7814\u53d1\u5de5\u7a0b\u5e08\uff0c\u4e3b\u8981\u8d1f\u8d23 OceanBase \u7684\u5f00\u6e90\u751f\u6001\u5bf9\u63a5\u548c\u793e\u533a\u6cbb\u7406\u76f8\u5173\u5de5\u4f5c\uff0c\u4ed6\u957f\u671f\u6d3b\u8dc3\u5728 Flink CDC \u793e\u533a\uff0c\u53c2\u4e0e\u4e86\u591a\u4e2a\u7248\u672c\u7684\u5f00\u53d1\u5de5\u4f5c\uff0c\u4f5c\u4e3a\u6838\u5fc3\u8d21\u732e\u8005\u5728\u793e\u533a\u8d21\u732e\u4e86\u5305\u62ec OceanBase CDC Connector \u5728\u5185\u7684\u591a\u4e2a PR\uff0c\u540c\u65f6\u5728\u7528\u6237\u7fa4\u548c issue \u5217\u8868\u4e2d\u5e2e\u52a9\u79ef\u6781\u5e2e\u52a9\u7528\u6237\u89e3\u51b3\u95ee\u9898\uff0c\u4e3a\u793e\u533a\u53d1\u5c55\u505a\u51fa\u4e86\u6301\u7eed\u7684\u8d21\u732e\u3002\u671f\u5f85\u5ddd\u7c89\u8001\u5e08\u4f5c\u4e3a Flink CDC \u7684 Maintainer\uff0c\u4e3a\u793e\u533a\u7684\u53d1\u5c55\u5e26\u6765\u66f4\u591a\u6570\u636e\u5e93\u4fa7\u7684\u89c6\u89d2\uff0c\u5e2e\u52a9\u66f4\u591a\u7684\u793e\u533a\u8d21\u732e\u8005\u548c\u7528\u6237\uff0c\u4e5f\u5e0c\u671b\u672a\u6765\u80fd\u6709\u66f4\u591a\u7684\u8d21\u732e\u8005\u53ef\u4ee5\u52a0\u5165 Maintainer \u5217\u8868\uff0c\u4e0d\u65ad\u63a8\u52a8\u793e\u533a\u7684\u53d1\u5c55\u3002<\/p>\n<blockquote><p>\u963f\u91cc\u4e91\u5b9e\u65f6\u8ba1\u7b97 Flink \u57fa\u4e8e Flink 1.17 \u7684\u4f01\u4e1a\u7248 Flink \u5df2\u6b63\u5f0f\u53d1\u5e03 [7]\uff0c\u5728\u8be5\u7248\u672c\u4e2d MongoDB CDC \u8fde\u63a5\u5668\u5df2\u5f00\u59cb\u516c\u6d4b\uff0c\u652f\u6301\u4efb\u610f\u65f6\u95f4\u6233\u6d88\u8d39\u3001\u5b8c\u6574\u4e8b\u4ef6\u6d41\u7b49\u529f\u80fd [8]\u3002\u6b22\u8fce\u4f7f\u7528\uff01<\/p><\/blockquote>\n<p><strong>\u53c2\u8003<\/strong><\/p>\n<p><strong>[1] MongoDB CDC \u793e\u533a\u6587\u6863\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=y%2B2pOx%2FIAg79Jq7T%2BSp8%2Bw%3D%3D.HYnfwrFF6EvjqrMXSVlc%2FBkYyadjzz1B%2FD%2BqXQEnhZ1lPlodO8kEOQ0x7qKfKOafi7nbcXPekjkN%2FHEeTmb%2BbCRABi1hzIhymDVy%2FLrUSpnmtK1Xdh4jdsYSekUAWLs7S51UCOi2lVVe7m7ccMJKlQ%3D%3D\" rel=\"noopener noreferrer\">https:\/\/ververica.github.io\/flink-cdc-connectors\/release-2.4\/&#8230;<\/a><\/p>\n<p><strong>[2] Flink CDC \u793e\u533a\u5b98\u7f51\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=e0p7cZUzAzmtYj1xJiKXhA%3D%3D.uTSeCNntPo742BXTlh3zpkCwZVyCq8EDKSCyu4E3VYtbSO2%2BTs1Kjh3Q%2F94Af%2B0tAC8gJhUeWJgR7ccktKYCfA%3D%3D\" rel=\"noopener noreferrer\">https:\/\/ververica.github.io\/flink-cdc-connectors\/<\/a><\/p>\n<p><strong>[3] MongoDB Oplog \u6587\u6863\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=vbIStm729EcP4XxEGOVhiw%3D%3D.3WvU5m2UHQwDxjfprxapNucclu4whGToJE%2BbEA0iD0n0HSOIm7663%2F2WTsRSS1cubizBUPEcYP6EucVqJz1bEA%3D%3D\" rel=\"noopener noreferrer\">https:\/\/www.mongodb.com\/docs\/manual\/core\/replica-set-oplog\/<\/a><\/p>\n<p><strong>[4] MongoDB \u53d8\u66f4\u6d41\u6587\u6863\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=2CNznXGaV%2Fci8Qb2HAy9pw%3D%3D.o8JZHGuufBDVz2VpgAGEtaXqYzHVBRjHqZmJRhe8GiSEoDvW2PWusUc9BmiWBHPPSjwme8wWrqAjqfa1G%2FJxWA%3D%3D\" rel=\"noopener noreferrer\">https:\/\/www.mongodb.com\/docs\/manual\/changeStreams\/<\/a><\/p>\n<p><strong>[5] Apache Flink FLIP-27 \u63d0\u6848\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=bK7n1hrk2djP5069XdCNIQ%3D%3D.Wo6Hi58T2cWBsNDiqEyKxQdZjhAjDgqr6v0oscxvKV3%2B%2BAYytirvEz3xhDSCJMufYo5apjvVoD6n4toNQvo3DFbkyX%2F3WqGQjvPAeqNQEj7j0AlipQ55x2FqUofi3iOR\" rel=\"noopener noreferrer\">https:\/\/cwiki.apache.org\/confluence\/display\/FLINK\/FLIP-27%3A+&#8230;<\/a><\/p>\n<p><strong>[6] MongoDB PreImages \u6587\u6863\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=HYA5kPnpmDUryDVqq3yCTg%3D%3D.0MTuLSGStquCiQkeGFOmAkwfXK%2BSLZWhCrY%2BF6JqJaK6S%2BLVurY6xZPuwbTg%2FRZktY9C6z8DI3v2VBIbW%2B2%2BSuNSPDUTLzUo8TA7Wtcqubs%3D\" rel=\"noopener noreferrer\">https:\/\/www.mongodb.com\/docs\/atlas\/app-services\/mongodb\/preim&#8230;<\/a><\/p>\n<p><strong>[7] \u963f\u91cc\u4e91 MongoDB CDC \u6587\u6863\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=YejFFMpctEuAG7F1BK%2FgBA%3D%3D.6aC0lLmxUt%2FBMUEgtIZWvpt0nJ8g0WwKkix75tOXw9JUYRaoJFI9Hs%2BbaSsG%2FDDYtjswhBXFekuVcm90MdfzIfTo4urbRxKCwsl9OfxSyQE%3D\" rel=\"noopener noreferrer\">https:\/\/help.aliyun.com\/zh\/flink\/developer-reference\/mongodb-&#8230;<\/a><\/p>\n<p><strong>[8] \u963f\u91cc\u4e91 Flink \u5b9e\u65f6\u8ba1\u7b97 Release Notes\uff1a<\/strong><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=5P1blKCnFf7mWOHRDmfBeQ%3D%3D.%2FknTWI9JmyFaY9qQ60cz7ircl3%2BMnRnYhRqR4RH8qeUSgSiM47z1qvrovebxKRqx%2FK9g5niNjd%2FLK0FwZxOyMMGShRZ5wXC%2FOTsZZlo8xTg%3D\" rel=\"noopener noreferrer\">https:\/\/help.aliyun.com\/zh\/flink\/product-overview\/august-21-2023<\/a><\/p>\n<h2>\u66f4\u591a\u5185\u5bb9<\/h2>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173155\" alt=\"image.png\" title=\"image.png\" loading=\"lazy\"><\/p>\n<h3>\u6d3b\u52a8\u63a8\u8350<\/h3>\n<p>\u963f\u91cc\u4e91\u57fa\u4e8e Apache Flink \u6784\u5efa\u7684\u4f01\u4e1a\u7ea7\u4ea7\u54c1-\u5b9e\u65f6\u8ba1\u7b97 Flink \u7248\u73b0\u5f00\u542f\u6d3b\u52a8\uff1a<br \/>\u9996\u8d2d99\u5143\u5305\u6708\u8bd5\u7528\uff0c\u6709\u673a\u4f1a\u8d62\u53d6\u5b9a\u5236\u5468\u8fb9\u793c\u54c1\uff01 <br \/>\u4ea7\u54c1\u5b98\u7f51\uff1a<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=uACOp%2F8AJLxcKcN98i6CRQ%3D%3D.vRopzYOIk6V8eEt%2Fboj4kBk%2BQc%2F054DYJCXMT24JbYL2CMT3ymsCpuUecq3WACN2\" rel=\"noopener noreferrer\">https:\/\/www.aliyun.com\/product\/bigdata\/sc<\/a><\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044173132\" alt=\"image.png\" title=\"image.png\" loading=\"lazy\"><\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000044173147\">https:\/\/segmentfault.com\/a\/1190000044173147<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005:\u5343\u6d6a@\u963f\u91cc\u4e91\u7814\u53d1\u5de5\u7a0b\u5e08 MongoDB CDC \u6982\u8ff0 MongoDB \u662f\u5f53\u4e0b\u6d41\u884c\u7684\u4e00\u4e2a\u57fa\u4e8e\u6587\u6863\u7684\u975e\u5173\u7cfb\u6027 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008215","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008215"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008215\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}