{"id":47020,"date":"2022-12-22T14:00:35","date_gmt":"2023-07-23T10:09:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/avro%e3%80%81schemaregistry%e7%9a%84%e8%b5%b7%e6%ad%a5\/"},"modified":"2024-04-29T06:30:03","modified_gmt":"2024-04-28T22:30:03","slug":"avro%e3%80%81schemaregistry%e7%9a%84%e8%b5%b7%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/avro%e3%80%81schemaregistry%e7%9a%84%e8%b5%b7%e6%ad%a5\/","title":{"rendered":"Avro\u3001SchemaRegistry\u7684\u8d77\u6b65"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u6253\u7b97\u572830\u5c81\u65f6\u52a0\u5f3a\u6211\u7684\u8f93\u51fa\u610f\u8bc6\u3002\u867d\u7136\u7b2c\u4e00\u4e2a\u4e3b\u9898\u6709\u70b9\u666e\u901a\uff0c\u4f46\u5982\u679c\u4f60\u611f\u5174\u8da3\u7684\u8bdd\u3002<\/p>\n<p>\u6211\u6b63\u5728\u5c1d\u8bd5\u5f15\u5165Hadoop\u3001Spark\u3001Kafka\u548cFluentd\u7b49\u5de5\u5177\u6765\u5b8c\u5584\u5185\u90e8\u7684\u65e5\u5fd7\u57fa\u7840\u8bbe\u65bd\u3002<\/p>\n<p>\u5bf9\u4e8e\u4f7f\u7528Kafka\u8fdb\u884c\u5e8f\u5217\u5316\uff0c\u4e3b\u6d41\u65b9\u6cd5\u662f\u4f7f\u7528Avro\u548cSchemaRegistry\u3002\u7136\u800c\uff0c\u5f88\u96be\u627e\u5230\u76f4\u63a5\u53ef\u8fd0\u884c\u7684Avro\u6e90\u4ee3\u7801\u6216\u66f4\u6df1\u5165\u7684\u89e3\u91ca\uff0c\u6211\u4e00\u5ea6\u611f\u5230\u56f0\u60d1\uff0c\u65e0\u6cd5\u7406\u89e3\u3002\u5e0c\u671b\u6211\u7684\u56f0\u6270\u80fd\u4e3a\u5176\u4ed6\u4eba\u63d0\u4f9b\u5e2e\u52a9\u3002<\/p>\n<p>\u6211\u8ba4\u4e3a\u53ea\u9700\u7b80\u8981\u4ecb\u7ecdSchemaRegistry\uff0c\u53ea\u8981\u4e86\u89e3Avro\u5373\u53ef\u5e94\u5bf9\u5176\u590d\u6742\u6027\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u4ee3\u7801\u5df2\u7ecf\u4e0a\u4f20\u5230GitHub\u4e0a\uff0c\u4f9b\u53c2\u8003\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u57fa\u672c\u4e0a\u5982\u679c\u5df2\u7ecf\u6709\u4f18\u8d28\u7684\u5185\u5bb9\uff0c\u6211\u5c06\u53ea\u63d0\u4f9b\u94fe\u63a5\uff0c\u8ba9\u60a8\u53bb\u9605\u8bfb\u76f8\u5173\u8bf4\u660e\u3002<\/p>\n<h1>Avro\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u7531\u4e8e\u5b83\u53ea\u9700\u4e00\u5206\u949f\u5c31\u80fd\u9605\u8bfb\u5b8c\uff0c\u6240\u4ee5\u8ba9\u6211\u4eec\u9605\u8bfb\u4e00\u4e0bAvro\u5b98\u65b9\u7684\u6982\u8ff0\u3002<\/p>\n<h1>JSON\u4e0d\u53ef\u4ee5\u5417\uff1f<\/h1>\n<p>Confluent\u7684\u6587\u6863\u4e2d\u63d0\u5230\u4e86Avro\u89e3\u51b3JSON\u7f3a\u70b9\u7684\u95ee\u9898\u3002<br 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class=\"post-pre\"><code>{\"namespace\": \"com.example.kafka\",\r\n \"type\": \"record\",\r\n \"name\": \"Payment2\",\r\n \"fields\": [\r\n     {\"name\": \"id\", \"type\": \"string\"},\r\n     {\"name\": \"amount\", \"type\": \"double\"},\r\n     {\"name\": \"region\", \"type\": [\"string\", \"null\"], \"default\": \"NOWHERE\"}\r\n ]\r\n}\r\n<\/code><\/pre>\n<h3>\u547d\u540d\u7a7a\u95f4<\/h3>\n<p>\u76f4\u63a5\u91c7\u7528\u547d\u540d\u7a7a\u95f4\u3002\u4f7f\u7528\u70b9\u5206\u9694\u7b26\u8fdb\u884c\u7f16\u5199\u3002<br \/>\n\u636e\u8bf4\u8fd9\u91cc\u6307\u5b9a\u7684\u5185\u5bb9\u5c06\u6210\u4e3a\u81ea\u52a8\u751f\u6210\u7684\u6a21\u5f0f\u7c7b\u7684\u5305\u540d\u79f0\u3002<br \/>\n\u6240\u4ee5\u5982\u679c\u662f\u4e0e\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e0d\u540c\u7684\u5305\u540d\u79f0\uff0c\u5fc5\u987b\u660e\u786e\u5bfc\u5165\u624d\u80fd\u5f15\u7528\u3002<\/p>\n<h3>\u8f93\u5165\u7c7b\u578b<\/h3>\n<p>\u5728Java\u4e2d\uff0c\u6709\u539f\u59cb\u7c7b\u578b\uff08null\u3001boolean\u3001int\u3001long\u3001float\u3001double\u3001bytes\u548cstring\uff09\u548c\u590d\u6742\u7c7b\u578b\uff08record\u3001enum\u3001array\u3001map\u3001union\u548cfixed\uff09\u3002<\/p>\n<p>\u5173\u4e8e[&#8220;string&#8221;, 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&#8220;DEF&#8221;, &#8220;amount&#8221;: 200.0, &#8220;region&#8221;: null}\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u3053\u306e\u30b9\u30ad\u30fc\u30de\u3067\u8aad\u3093\u3067\u3082\u3001region\u306fnull\u306e\u307e\u307e\u3067\u3059\u3002<\/p>\n<p>{&#8220;id&#8221;: &#8220;DEF&#8221;, &#8220;amount&#8221;: 200.0}\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u3053\u306e\u30b9\u30ad\u30fc\u30de\u3067\u8aad\u3080\u3068\u3001region\u306fNOWHERE\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u7b2c\u4e09\u6761\u8bb0\u5f55\u7684id=GHI\u7684\u8bb0\u5f55\u5728\u5e8f\u5217\u5316\u65f6\u6ca1\u6709\u88ab\u6307\u5b9a\uff0c\u5374\u4f1a\u53d8\u6210NOWHERE\u5462\uff1f\u6211\u5728\u8fd9\u91cc\u7ea0\u7ed3\u4e862\u30013\u4e2a\u5c0f\u65f6\uff0c\u7a81\u7136\u770b\u5230\u4e86GettingStarted\u9875\u9762\u4e0a\u7684\u4ee5\u4e0b\u8bf4\u660e\u3002<\/p>\n<blockquote><p>\u5982\u793a\u4f8b\u6240\u793a\uff0cAvro\u5bf9\u8c61\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u8c03\u7528\u6784\u9020\u51fd\u6570\u6216\u4f7f\u7528\u6784\u5efa\u5668\u6765\u521b\u5efa\u3002\u4e0e\u6784\u9020\u51fd\u6570\u4e0d\u540c\u7684\u662f\uff0c\u6784\u5efa\u5668\u5c06\u81ea\u52a8\u8bbe\u7f6e\u6a21\u5f0f\u4e2d\u6307\u5b9a\u7684\u4efb\u4f55\u9ed8\u8ba4\u503c\u3002<\/p><\/blockquote>\n<p>\u660e\u767d\u4e86\uff01\u5728\u4f7f\u7528\u6784\u5efa\u5668\u6a21\u5f0f\u4ece\u6a21\u5f0f\u7c7b\u751f\u6210\u65f6\uff0c\u672a\u6307\u5b9a\u7684\u5b57\u6bb5\u5c06\u4f1a\u8bbe\u7f6e\u4e3a\u9ed8\u8ba4\u503c\u3002<\/p>\n<p>\u8bf7\u5230\u6b64\u5904\u67e5\u770b\u6837\u4f8b\u4ee3\u7801\uff0c\u5e76\u4e14\u5728avro\u6587\u4ef6\u4e2d\u53ef\u4ee5\u770b\u5230\u5b9e\u9645\u4e0a\u5199\u5165\u4e86\u300cNOWHERE\u300d\u3002<\/p>\n<h1>\u5728\u7a0b\u5f0f\u4e2d\u57f7\u884c<\/h1>\n<p>\u5728pom.xml\u6587\u4ef6\u4e2d\uff0c\u6307\u5b9a\u4e86\u6a21\u5f0f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0csourceDirectory\u4e2d\u7684*.avsc\u683c\u5f0f\u7684\u6587\u4ef6\u4f1a\u88ab\u52a0\u8f7d\uff0c\u4f46\u4e5f\u53ef\u4ee5\u660e\u786e\u6307\u5b9a\uff0c\u5982\u6b64\u5904\u6240\u663e\u793a\u3002<\/p>\n<p>\u6709\u4e24\u79cd\u65b9\u5f0f\u6765\u8fdb\u884c\u4ee3\u7801\u751f\u6210\uff0c\u4e00\u79cd\u662fSpecific\u65b9\u5f0f\uff0c\u53e6\u4e00\u79cd\u662fGeneric\u65b9\u5f0f\uff0c\u5728\u8fd9\u91cc\u79f0\u4e4b\u4e3a\u3002<\/p>\n<h2>\u7279\u5b9a\u7684\u65b9\u5f0f<\/h2>\n<p>\u5982\u679c\u5728\u4f7f\u7528Maven\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u4e3a\u6211\u4eec\u751f\u6210Java\u4ee3\u7801\u7684Schema\u3002\u6211\u4eec\u53ef\u4ee5\u5728pom.xml\u4e2d\u6307\u5b9a\u751f\u6210\u7684\u76ee\u6807\u8def\u5f84\u3002\u7531\u4e8e\u6709\u4e00\u4e9b\u4eba\u53ef\u80fd\u60f3\u8981\u67e5\u770b\u751f\u6210\u540e\u7684\u6e90\u6587\u4ef6\uff0c\u6211\u5c06\u5b83\u4eec\u653e\u5728\u8fd9\u91cc\uff0c\u4f46\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u8fd9\u7c7b\u6587\u4ef6\u5e94\u8be5\u662f\u4e0d\u9700\u8981\u88ab\u7248\u672c\u63a7\u5236\u7684\u3002\u5f53\u6211\u4eec\u6d4f\u89c8\u6e90\u4ee3\u7801\u65f6\uff0c\u53ef\u4ee5\u786e\u8ba4\uff0c\u6b63\u5982\u5728GettingStarted\u4e2d\u6240\u63d0\u5230\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6784\u9020\u51fd\u6570\u65b9\u5f0f\u3001set\u65b9\u5f0f\u548cbuilder\u65b9\u5f0f\u6765\u751f\u6210Schema\u5bf9\u8c61\u3002<br \/>\n\u7531\u4e8e\u4f7f\u7528\u4e86\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6240\u4ee5\u5728\u66f4\u6539Schema\u5b9a\u4e49\u65f6\uff0c\u9700\u8981\u8fdb\u884c\u7f16\u8bd1\u3002<\/p>\n<h2>\u6807\u51c6\u7684\u65b9\u5f0f<\/h2>\n<p>\u8fd9\u4e2a\u9009\u9879\u66f4\u7b80\u5355\u3002\u5b83\u5728\u8fd0\u884c\u65f6\u4e0d\u4f1a\u751f\u6210\u4ee3\u7801\uff0c\u800c\u662f\u53c2\u8003\u6a21\u5f0f\u5b9a\u4e49\u3002\u56e0\u6b64\uff0c\u6211\u8ba4\u4e3a\u5728\u60f3\u8981\u52a8\u6001\u66f4\u6539\u65b9\u6848\u65f6\u5e94\u9009\u62e9\u8fd9\u4e2a\u9009\u9879\u3002\u53e6\u5916\uff0c\u5f53\u53cd\u5e8f\u5217\u5316\u65f6\uff0c\u5982\u679c\u8981\u6307\u5b9a\u4e0e\u5e8f\u5217\u5316\u65f6\u76f8\u540c\u7684\u6a21\u5f0f\uff0c\u5219\u65e0\u9700\u6307\u5b9a\u6a21\u5f0f\u3002\u8fd9\u662f\u56e0\u4e3aavro\u6587\u4ef6\u672c\u8eab\u5c31\u5305\u542b\u6a21\u5f0f\u5b9a\u4e49\u3002\u5f88\u591a\u4eba\u9519\u8bef\u5730\u8ba4\u4e3a\u9700\u8981\u6307\u5b9a\u6a21\u5f0f\uff0c\u53ef\u80fd\u662f\u56e0\u4e3aGettingStarted\u793a\u4f8b\u4ee3\u7801\u4e2d\u6307\u5b9a\u4e86\u6a21\u5f0f\uff08\u6211\u81ea\u5df1\u4e5f\u66fe\u8bef\u89e3\u8fc7\uff0c\u4f46\u7ecf\u8fc7\u5b9e\u9645\u9a8c\u8bc1\u5df2\u786e\u8ba4\uff09\u3002<\/p>\n<h1>Avro\u6587\u4ef6<\/h1>\n<p>\u60a8\u53ef\u4ee5\u5728\u8fd9\u91cc\u67e5\u770b\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u60a8\u5927\u6982\u53ef\u4ee5\u4e86\u89e3\u5b83\u662f\u5982\u4f55\u8fdb\u884c\u5e8f\u5217\u5316\u7684\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u5728\u8fd9\u9644\u8fd1\u627e\u5230\u8be6\u7ec6\u7684\u8bf4\u660e\u3002<br \/>\n\u53ef\u4ee5\u660e\u786e\u5730\u770b\u5230\u5bf9\u8c61\u4ee5Obj\u5f00\u5934\uff0c\u5e76\u4e14\u5728avro.schema\u4e2d\u53ea\u5b58\u5728\u4e00\u4e2a\u6a21\u5f0f\u5b9a\u4e49\uff0c\u4e4b\u540e\u7d27\u8ddf\u7740\u6570\u636e\u3002<\/p>\n<h1>\u6a21\u5f0f\u89e3\u6790<\/h1>\n<p>\u5f53\u5199\u5165\u548c\u8bfb\u53d6\u7684\u6a21\u5f0f\u4e0d\u540c\u65f6\uff0c\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<p>\u4e5f\u8bb8\u6709\u4eba\u4f1a\u8ba4\u4e3a\u300c\u53ea\u9700\u8981\u4e00\u76f4\u4f7f\u7528\u76f8\u540c\u7684\u67b6\u6784\u5c31\u597d\u4e86\u300d\uff0c\u4f46\u662f\u5728\u4f7f\u7528Kafka\u7b49\u6d41\u5904\u7406\u65f6\uff0c\u5373\u4f7f\u540c\u65f6\u66f4\u65b0Producer\u548cConsumer\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4e5f\u53ef\u80fd\u4f1a\u8bfb\u53d6\u5230\u8001\u65e7\u67b6\u6784\u5b9a\u4e49\u7684\u4e3b\u9898\u6570\u636e\uff1b\u800c\u4e14\u5982\u679cProducer\u548cConsumer\u4f4d\u4e8e\u4e0d\u540c\u7684\u670d\u52a1\u5668\u3001\u56e2\u961f\u6216\u516c\u53f8\u8fdb\u884c\u7ba1\u7406\uff0c\u540c\u65f6\u8fdb\u884c\u5b8c\u5168\u7684\u66f4\u6539\u5c06\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002<\/p>\n<p>\u5177\u4f53\u7684\u7684\u89e3\u51b3\u65b9\u6cd5\u8bf7\u53c2\u8003\u6b64\u5904\uff0c\u4f46\u6211\u4e86\u89e3\u5230\u4ee5\u4e0b\u4e24\u70b9\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<blockquote><p>\u5982\u679c\u8bfb\u8005\u7684\u8bb0\u5f55\u6a21\u5f0f\u5305\u542b\u4e00\u4e2a\u5305\u542b\u9ed8\u8ba4\u503c\u7684\u5b57\u6bb5\uff0c\u800c\u5199\u8005\u7684\u6a21\u5f0f\u6ca1\u6709\u5177\u6709\u76f8\u540c\u540d\u79f0\u7684\u5b57\u6bb5\uff0c\u5219\u8bfb\u8005\u5e94\u8be5\u4f7f\u7528\u5176\u5b57\u6bb5\u7684\u9ed8\u8ba4\u503c\u3002<br \/>\n\u5982\u679c\u8bfb\u8005\u7684\u8bb0\u5f55\u6a21\u5f0f\u4e2d\u6ca1\u6709\u9ed8\u8ba4\u503c\u7684\u5b57\u6bb5\uff0c\u800c\u5199\u8005\u7684\u6a21\u5f0f\u6ca1\u6709\u5177\u6709\u76f8\u540c\u540d\u79f0\u7684\u5b57\u6bb5\uff0c\u5219\u4f1a\u53d1\u51fa\u9519\u8bef\u4fe1\u53f7\u3002<\/p><\/blockquote>\n<p>\u53e6\u5916\uff0c\u6211\u5df2\u7ecf\u5728GitHub\u4e0a\u53d1\u5e03\u4e86Schema Resolution\u7684\u6837\u672c\u4ee3\u7801\u7ed3\u679c\uff0c\u4f9b\u60a8\u53c2\u8003\u3002<\/p>\n<h1>\u6a21\u5f0f\u6ce8\u518c\u8868<\/h1>\n<p>\u5bf9\u4e8eSchemaRegistry\u800c\u8a00\uff0c\u53ea\u8981\u80fd\u591f\u5f88\u597d\u5730\u7406\u89e3Avro\uff0c\u5c31\u4e0d\u4f1a\u592a\u96be\u3002<br \/>\n\u6b64\u5916\uff0cConfluent\u7684\u6587\u6863\u975e\u5e38\u51fa\u8272\uff0c\u5e76\u4e14\u5728GitHub\u4e0a\u6709\u793a\u4f8b\u4ee3\u7801\uff0c\u4e0e\u6587\u6863\u76f8\u4e92\u94fe\u63a5\uff0c\u6240\u4ee5\u6211\u5c31\u5f88\u5c11\u9700\u8981\u81ea\u5df1\u5199\u4e1c\u897f\u4e86\uff0c\u4f46\u6211\u7a0d\u5fae\u603b\u7ed3\u4e00\u4e0b\u3002<br \/>\n\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u6211\u8bfb\u4e86\u4ee5\u4e0b\u4e24\u4e2a\u5f15\u7528\uff0c\u5c31\u5927\u6982\u660e\u767d\u4e86\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Confluent Schema Registry Tutorial<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Schema Evolution and Compatibility<\/ul>\n<h3>\u529f\u80fd<\/h3>\n<p>\u5728Kafka\u4e2d\uff0c\u4f7f\u7528Avro\u8fdb\u884c\u5e8f\u5217\u5316\u65f6\uff0c\u5b83\u63d0\u4f9b\u4ee5\u4e0b\u4e24\u79cd\u529f\u80fd\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30ad\u30fc\u30de\u3092\u4e00\u5143\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002RESTAPI\u7d4c\u7531\u3067\u3001Kafka\u306eproducer,consumer\u3092\u4ecb\u3055\u305a\u306b\u3001\u30b9\u30ad\u30fc\u30de\u53c2\u7167\u3001\u4f5c\u6210\u7b49\u3067\u304d\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u306b\u304a\u3044\u3066\u3001\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af\u304c\u3067\u304d\u307e\u3059\u3002<\/ul>\n<h3>\u6a21\u5f0f\u7ba1\u7406<\/h3>\n<p>\u5728SchemaRegistry\u4e0a\u7ba1\u7406\u7740Schema\u4fe1\u606f\uff0c\u5e76\u4e3a\u5176\u5206\u914d\u4e86\u79f0\u4e3aschema id\u7684\u6807\u8bc6\u3002\u5bf9\u4e8eKafka\u7684\u6d88\u606f\u800c\u8a00\uff0c\u4e0d\u9700\u8981\u4fdd\u5b58\u5168\u90e8\u7684Schema\u4fe1\u606f\uff0c\u53ea\u9700\u4fdd\u7559schema id\u5373\u53ef\u3002\u5176\u64cd\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5f53producer\u6709\u4e00\u4e2a\u65b0\u7684schema\u65f6\uff0c\u5b83\u4f1a\u5c06\u5176\u53d1\u9001\u5230SchemaRegistry\uff0c\u7136\u540e\u83b7\u53d6\u8fd4\u56de\u7684schema id\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>producer\u4f1a\u5c06schema\u548c\u5bf9\u5e94\u7684schema id\u4fdd\u5b58\u5728\u7f13\u5b58\u4e2d\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5f53consumer\u6709\u4e00\u4e2a\u65b0\u7684schema id\u65f6\uff0c\u5b83\u4f1a\u5c06\u5176\u53d1\u9001\u5230SchemaRegistry\uff0c\u7136\u540e\u83b7\u53d6\u8fd4\u56de\u7684schema\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>consumer\u4f1a\u5c06schema id\u548c\u5bf9\u5e94\u7684schema\u4fdd\u5b58\u5728\u7f13\u5b58\u4e2d\u3002<\/ol>\n<p>\u5728\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u4e4b\u95f4\uff0c\u5982\u679c\u5728\u7f13\u5b58\u4e2d\u5b58\u5728\uff0c\u5219\u4e0d\u4f1a\u53d1\u751f\u4e0eSchemaRegistry\u7684\u901a\u4fe1\u3002<br \/>\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u751f\u4ea7\u8005\u4f1a\u81ea\u52a8\u6ce8\u518c\u65b0\u7684\u6a21\u5f0f\uff0c\u4f46\u662f\u5728\u6587\u6863\u4e2d\u5efa\u8bae\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4e0d\u8981\u81ea\u52a8\u6ce8\u518c\uff0c\u800c\u662f\u901a\u8fc7REST API\u6765\u8fdb\u884c\u6ce8\u518c\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u6211\u539f\u672c\u8bef\u89e3\u4e86\u4e00\u4e2a\u95ee\u9898\u3002\u5728consumer\u7aef\u4ee5Specific\u683c\u5f0f\u6d88\u8d39\u6d88\u606f\u65f6\uff0c\u6211\u5c1d\u8bd5\u6307\u5b9a\u4e86\u65b0\u7684\u6a21\u5f0f\uff0c\u5b83\u4e5f\u80fd\u6210\u529f\u5730\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u3002\u6211\u539f\u4ee5\u4e3a\u5b83\u5df2\u7ecf\u5728SchemaRegistry\u4e0a\u6ce8\u518c\u4e86\u8be5\u6a21\u5f0f\uff0c\u4f46\u5b9e\u9645\u4e0a\u6ca1\u6709\u3002\u770b\u6765\u53ea\u6709producer\u548cREST API\u80fd\u591f\u5728SchemaRegistry\u4e0a\u8fdb\u884c\u6ce8\u518c\u3002<\/p>\n<h3>\u8fdb\u884c\u4e92\u6362\u6027\u68c0\u67e5 (Carry out intercompatibility check)<\/h3>\n<p>\u6211\u6703\u5c07\u8a73\u7d30\u8cc7\u8a0a\u653e\u5728\u6587\u4ef6\u4e2d\u3002\u7136\u800c\uff0c\u9ed8\u8a8d\u8a2d\u5b9a\u662f<\/p>\n<blockquote><p>\u53cd\u5411\uff1a\uff08\u9ed8\u8ba4\uff09\u4f7f\u7528\u65b0\u67b6\u6784\u7684\u6d88\u8d39\u8005\u53ef\u4ee5\u8bfb\u53d6\u7531\u4f7f\u7528\u6700\u65b0\u6ce8\u518c\u67b6\u6784\u7684\u751f\u4ea7\u8005\u5199\u5165\u7684\u6570\u636e\u3002<\/p><\/blockquote>\n<p>\u8bf7\u6ce8\u610f\uff1a\u6839\u636e\u67d0\u4e9b\u89c4\u5b9a\uff0c\u6211\u4eec\u4ec5\u4fdd\u8bc1\u4e0e\u6700\u65b0\u7248\u672c\u7684\u5411\u540e\u517c\u5bb9\u6027\u3002\u4f8b\u5982\uff0c\u5f53\u6a21\u5f0f\u4eceSchema1\u8fdb\u5316\u5230Schema2\u518d\u5230Schema3\u65f6\uff0c\u53ef\u80fd\u5b58\u5728\u4ee5\u4e0b\u60c5\u51b5\uff1aSchema1\u4e0eSchema2\u4e4b\u95f4\u4ee5\u53caSchema2\u4e0eSchema3\u4e4b\u95f4\u5b58\u5728\u5411\u540e\u517c\u5bb9\u6027\uff0c\u4f46\u662fSchema1\u4e0eSchema3\u4e4b\u95f4\u53ef\u80fd\u4e0d\u5b58\u5728\u5411\u540e\u517c\u5bb9\u6027\u3002\uff08\u5df2\u7ecf\u8fc7\u9a8c\u8bc1\uff09<\/p>\n<ul 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\/>\n\u5f53\u7136\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\u662f\u4e0d\u4f1a\u8fd9\u4e48\u505a\u7684\uff01<\/p>\n<h2>\u5982\u679c\u8ffd\u52a0\u4e86\u5305\u62ec\u7c7b\u578b\u5728\u5185\u7684\u4e0d\u540c\u6a21\u5f0f\u7684\u5bf9\u8c61<\/h2>\n<p>org.apache.avro.file.DataFileWriter$AppendWriteException: org.apache.avro.UnresolvedUnionException: \u4e0d\u5728\u8054\u5408\u7c7b\u578b[&#8220;int&#8221;,&#8221;null&#8221;]\u4e2d\uff1a900.0<br \/>\n\u7f16\u8bd1\u901a\u8fc7\uff0c\u4f46\u5728\u5199\u5165\u65f6\u51fa\u73b0\u201c\u7c7b\u578b\u4e0d\u5339\u914d\u201d\u7684\u9519\u8bef\u3002<\/p>\n<h2>\u5982\u679c\u53ea\u662f\u6dfb\u52a0\u5177\u6709\u4e0d\u540c\u5c5e\u6027\u540d\u79f0\u7684\u5bf9\u8c61\uff0c\u5219\u5305\u62ec\u683c\u5f0f\u5728\u5185\u7684\u6240\u6709\u683c\u5f0f\u90fd\u662f\u76f8\u540c\u7684\u3002<\/h2>\n<p>\u6b63\u5e38\u8fdb\u884c\u3002<br 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