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文档中心数据传输服务前置校验不通过处理方法 MySQL/MariaDB/Percona/TDSQL-C MySQL校验项同目标同库表对象 DDL 同步冲突检测

同目标同库表对象 DDL 同步冲突检测

最近更新时间：2022-11-09 10:29:13

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检查详情
在多对一同步、多活等需要配置多个同步任务的场景中，同一个库表对象不能接收多个数据中心的 DDL 同步，否则多个数据中心的 DDL 可能在目标端形成冲突，进而引发错误。 
示例：下图中实例 A 和 C 有相同名称的表需要同步到实例 B 中，则同步任务1和4中，只能在一个任务选择 DDL。  
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修复方法
修改同步任务配置，在设置同步选项和同步对象 > 数据同步选项 > 同步操作类型中，修改 DDL 参数配置，避免同一个库表对象接收多个数据中心的 DDL 同步。
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