wso2是群集mysql的api管理器和数据库配置

我正在尝试使用HAMySQL（v8.0）配置将IS设置为密钥管理器（v3.0.0）和api管理器（v3.0.0）。在运行sql脚本创建数据库时，我从mysql获得了关于带on DELETE CASCADE的外键的条目的错误，当组复制打开时，mysql不支持该项。如果我只能复制IS和API管理器，而不能复制mysql，那么如何创建一个完整的HA设置？有解决方法吗？

您可以用触发器替换级联操作。这是一个Oracle示例。你可以用MySQL做同样的事情

CREATE or REPLACE TRIGGER TRG_DEL_AM_APPLICATION
  BEFORE DELETE
    on AM_APPLICATION
    FOR EACH ROW 
      BEGIN
        DELETE FROM AM_SUBSCRIPTION AMSU WHERE AMSU.APPLICATION_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_KEY_MAPPING AMKM WHERE AMKM.APPLICATION_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_REGISTRATION AMAR WHERE AMAR.APP_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_GROUP_MAPPING AMGM WHERE AMGM.APPLICATION_ID = :OLD.APPLICATION_ID;
    DELETE FROM AM_APPLICATION_ATTRIBUTES AAA WHERE AAA.APPLICATION_ID = :OLD.APPLICATION_ID;
      END;

参考：

[1]

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[2]

您可以用触发器替换级联操作。这是一个Oracle示例。你可以用MySQL做同样的事情

CREATE or REPLACE TRIGGER TRG_DEL_AM_APPLICATION
  BEFORE DELETE
    on AM_APPLICATION
    FOR EACH ROW 
      BEGIN
        DELETE FROM AM_SUBSCRIPTION AMSU WHERE AMSU.APPLICATION_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_KEY_MAPPING AMKM WHERE AMKM.APPLICATION_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_REGISTRATION AMAR WHERE AMAR.APP_ID = :OLD.APPLICATION_ID;
        DELETE FROM AM_APPLICATION_GROUP_MAPPING AMGM WHERE AMGM.APPLICATION_ID = :OLD.APPLICATION_ID;
    DELETE FROM AM_APPLICATION_ATTRIBUTES AAA WHERE AAA.APPLICATION_ID = :OLD.APPLICATION_ID;
      END;

参考：

[1]

---

[2]

为什么需要复制？这是多数据中心设置吗？mysql的HA innodb群集基于组复制。为什么需要复制？这是一个多数据中心设置吗？一个用于mysql的HA innodb群集是基于组复制的。谢谢，我没有足够的经验来进行类似的操作，但我会尝试一下。谢谢，我没有足够的经验来进行类似的操作，但我会尝试一下。