{"id":61423,"date":"2024-10-13T11:01:18","date_gmt":"2024-10-13T03:01:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61423\/"},"modified":"2024-10-13T11:01:18","modified_gmt":"2024-10-13T03:01:18","slug":"flink-cdc-%e5%9c%a8%e5%a4%a7%e5%81%a5%e9%9b%b2%e5%80%89%e7%9a%84%e5%af%a6%e8%b8%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61423\/","title":{"rendered":"Flink CDC \u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10"},"content":{"rendered":"<h1 id=\"flink-cdc-%e5%9c%a8%e5%a4%a7%e5%81%a5%e9%9b%b2%e5%80%89%e7%9a%84%e5%af%a6%e8%b8%90-oDFaBmebSM\">Flink CDC \u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10<\/h1>\n<p>\u96a8\u8457\u6578\u64da\u9a45\u52d5\u7684\u6c7a\u7b56\u8d8a\u4f86\u8d8a\u53d7\u5230\u91cd\u8996\uff0c\u4f01\u696d\u5c0d\u65bc\u6578\u64da\u7684\u5be6\u6642\u8655\u7406\u9700\u6c42\u4e5f\u65e5\u76ca\u589e\u52a0\u3002Apache Flink \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6d41\u8655\u7406\u6846\u67b6\uff0c\u7d50\u5408\u4e86 Change Data Capture (CDC) \u6280\u8853\uff0c\u70ba\u4f01\u696d\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6578\u64da\u540c\u6b65\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u63a2\u8a0e Flink CDC \u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10\uff0c\u4e26\u5206\u6790\u5176\u5e36\u4f86\u7684\u512a\u52e2\u8207\u6311\u6230\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-flink-cdc%ef%bc%9f-oDFaBmebSM\">\u4ec0\u9ebc\u662f Flink CDC\uff1f<\/h2>\n<p>Flink CDC \u662f\u4e00\u7a2e\u57fa\u65bc Apache Flink \u7684\u6578\u64da\u6355\u7372\u6280\u8853\uff0c\u65e8\u5728\u5be6\u6642\u6355\u7372\u6578\u64da\u5eab\u4e2d\u7684\u8b8a\u66f4\u3002\u5b83\u80fd\u5920\u76e3\u63a7\u6578\u64da\u5eab\u7684\u8b8a\u66f4\u4e8b\u4ef6\uff0c\u4e26\u5c07\u9019\u4e9b\u4e8b\u4ef6\u8f49\u63db\u70ba\u6d41\u5f0f\u6578\u64da\uff0c\u4f9b\u4e0b\u6e38\u7cfb\u7d71\u4f7f\u7528\u3002\u9019\u4e00\u6280\u8853\u7279\u5225\u9069\u5408\u9700\u8981\u5be6\u6642\u6578\u64da\u66f4\u65b0\u7684\u61c9\u7528\u5834\u666f\uff0c\u5982\u6578\u64da\u5009\u5eab\u3001\u6578\u64da\u6e56\u548c\u5be6\u6642\u5206\u6790\u5e73\u53f0\u3002<\/p>\n<h2 id=\"%e5%a4%a7%e5%81%a5%e9%9b%b2%e5%80%89%e7%9a%84%e9%9c%80%e6%b1%82-oDFaBmebSM\">\u5927\u5065\u96f2\u5009\u7684\u9700\u6c42<\/h2>\n<p>\u5927\u5065\u96f2\u5009\u4f5c\u70ba\u4e00\u500b\u5927\u578b\u6578\u64da\u5e73\u53f0\uff0c\u9762\u81e8\u8457\u591a\u7a2e\u6311\u6230\uff0c\u5305\u62ec\u6578\u64da\u5ef6\u9072\u3001\u6578\u64da\u4e00\u81f4\u6027\u548c\u6578\u64da\u6574\u5408\u7b49\u554f\u984c\u3002\u96a8\u8457\u696d\u52d9\u7684\u64f4\u5c55\uff0c\u50b3\u7d71\u7684\u6279\u8655\u7406\u65b9\u5f0f\u5df2\u7121\u6cd5\u6eff\u8db3\u5be6\u6642\u6578\u64da\u9700\u6c42\u3002\u56e0\u6b64\uff0c\u9078\u64c7 Flink CDC \u4f5c\u70ba\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u5373\u6642\u6027\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<h2 id=\"flink-cdc-%e7%9a%84%e6%9e%b6%e6%a7%8b-oDFaBmebSM\">Flink CDC \u7684\u67b6\u69cb<\/h2>\n<p>Flink CDC \u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6e90\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5982 MySQL\u3001PostgreSQL \u7b49\uff0c\u901a\u904e Debezium \u7b49\u5de5\u5177\u6355\u7372\u6578\u64da\u8b8a\u66f4\u3002<\/li>\n<li><strong>Flink \u6d41\u8655\u7406\uff1a<\/strong>\u4f7f\u7528 Flink \u7684\u6d41\u8655\u7406\u80fd\u529b\uff0c\u5c0d\u6355\u7372\u7684\u6578\u64da\u9032\u884c\u5be6\u6642\u8655\u7406\u548c\u8f49\u63db\u3002<\/li>\n<li><strong>\u6578\u64da\u63a5\u6536\u5668\uff1a<\/strong>\u5c07\u8655\u7406\u5f8c\u7684\u6578\u64da\u5beb\u5165\u76ee\u6a19\u7cfb\u7d71\uff0c\u5982\u6578\u64da\u5009\u5eab\u6216\u6578\u64da\u6e56\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e8%b8%90%e6%a1%88%e4%be%8b-oDFaBmebSM\">\u5be6\u8e10\u6848\u4f8b<\/h2>\n<p>\u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10\u4e2d\uff0cFlink CDC \u88ab\u7528\u65bc\u5be6\u6642\u6578\u64da\u540c\u6b65\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;\nimport org.apache.flink.streaming.api.datastream.DataStream;\nimport org.apache.flink.streaming.connectors.jdbc.JdbcInputFormat;\n\nStreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();\n\nDataStream&lt;Row&gt; sourceStream = env\n    .addSource(new FlinkCDCSource())\n    .name(\"Flink CDC Source\");\n\nsourceStream\n    .addSink(new JdbcSink())\n    .name(\"JDBC Sink\");\n\nenv.execute(\"Flink CDC Example\");<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5275\u5efa\u4e86\u4e00\u500b Flink \u7684\u57f7\u884c\u74b0\u5883\uff0c\u7136\u5f8c\u6dfb\u52a0\u4e86\u4e00\u500b Flink CDC \u7684\u6578\u64da\u6e90\uff0c\u6700\u5f8c\u5c07\u6578\u64da\u5beb\u5165 JDBC \u63a5\u6536\u5668\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97\u6578\u64da\u80fd\u5920\u5728\u4e0d\u540c\u7cfb\u7d71\u4e4b\u9593\u5be6\u6642\u6d41\u52d5\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8b%a2%e8%88%87%e6%8c%91%e6%88%b0-oDFaBmebSM\">\u512a\u52e2\u8207\u6311\u6230<\/h2>\n<p>Flink CDC \u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10\u4e2d\uff0c\u5e36\u4f86\u4e86\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u6642\u6027\uff1a<\/strong>\u80fd\u5920\u5373\u6642\u6355\u7372\u6578\u64da\u8b8a\u66f4\uff0c\u6eff\u8db3\u696d\u52d9\u5c0d\u5be6\u6642\u6578\u64da\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u6e90\u548c\u63a5\u6536\u5668\uff0c\u4fbf\u65bc\u8207\u73fe\u6709\u7cfb\u7d71\u96c6\u6210\u3002<\/li>\n<li><strong>\u64f4\u5c55\u6027\uff1a<\/strong>\u57fa\u65bc Flink \u7684\u67b6\u69cb\uff0c\u80fd\u5920\u8f15\u9b06\u64f4\u5c55\u4ee5\u61c9\u5c0d\u66f4\u5927\u7684\u6578\u64da\u91cf\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c\u5be6\u65bd\u904e\u7a0b\u4e2d\u4e5f\u9762\u81e8\u4e00\u4e9b\u6311\u6230\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u5982\u4f55\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u662f\u4e00\u500b\u91cd\u8981\u554f\u984c\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u8907\u96dc\u6027\uff1a<\/strong>\u6574\u5408\u591a\u500b\u7cfb\u7d71\u6642\uff0c\u53ef\u80fd\u6703\u589e\u52a0\u7cfb\u7d71\u7684\u8907\u96dc\u6027\u548c\u7dad\u8b77\u6210\u672c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oDFaBmebSM\">\u7e3d\u7d50<\/h2>\n<p>Flink CDC \u5728\u5927\u5065\u96f2\u5009\u7684\u5be6\u8e10\u4e2d\uff0c\u5c55\u793a\u4e86\u5176\u5728\u5be6\u6642\u6578\u64da\u8655\u7406\u65b9\u9762\u7684\u5f37\u5927\u80fd\u529b\u3002\u901a\u904e\u6709\u6548\u7684\u6578\u64da\u6355\u7372\u548c\u6d41\u8655\u7406\uff0c\u5927\u5065\u96f2\u5009\u80fd\u5920\u5be6\u73fe\u6578\u64da\u7684\u5373\u6642\u66f4\u65b0\uff0c\u63d0\u5347\u696d\u52d9\u6c7a\u7b56\u7684\u6548\u7387\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u4e00\u6b65\u767c\u5c55\uff0cFlink CDC \u5c07\u5728\u66f4\u591a\u7684\u61c9\u7528\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6\u96f2\u670d\u52d9\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5927\u5065\u96f2\u5009\u5982\u4f55\u5be6\u8e10Flink CDC\uff0c\u5be6\u73fe\u9ad8\u6548\u6578\u64da\u540c\u6b65\u8207\u5be6\u6642\u8655\u7406\uff0c\u63d0\u5347\u696d\u52d9\u904b\u71df\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-61423","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=61423"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61423\/revisions"}],"predecessor-version":[{"id":61424,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61423\/revisions\/61424"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}