从AWS DMS连接到Oracle DB的问题

Question

我想运行DMS任务以将数据从本地Oracle DB复制到AWS上的Mysql。 我已经具有防火墙访问权限，并且能够从AWS ec2实例远程登录到oracle DB服务器。 另外，我可以使用相同的用户名/密码，来自sql developer的连接字符串登录数据库，但是当我在DMS上测试端点时，它将失败并显示以下错误。

仅供参考，DMS实例属于我获得防火墙许可的同一VPC。

Test Endpoint failed: Application-Status: 1020912, Application-Message: ORA-12545: 
Connect failed because target host or object does not exist OCI connection failure.,
 Application-Detailed-Message: ORA-12545: Connect failed because target host or object does not exist
 OCI connection failure. ORA-12545: Connect failed because target host or object does not exist OCI connection 
 failure. Command get_owner_list failed when creating the stream component. requested object was not found 
 in the repository. Failed getting stream handle requested object was not found in the repository. 
 create_stream_handle failed requested object was not found in the repository. 
 Getting DB object ('A4NOXXXXXXXXXK2N2U') info from repository failed requested object was not found in
 the repository. Command get_owner_list failed when creating the stream component. requested object was not
found in the repository. Failed getting stream handle requested object was not found in the repository. 
 create_stream_handle failed

我检查了网络和数据库端，似乎没有问题。 请提出建议。

Answer 1

之前我有一个类似的问题，我假设使用相同的VPC创建DMS和Oracle实例将保证它们之间的连接。 我还假设为DMS和Oracle实例之间的开放端口添加入口规则也行得通，但是它们之间的连接失败，我发现了两种方法：

首先：创建一个没有公共IP地址的DMS实例，目标连接将通过验证。 它第一次工作

第二：通过打开允许所有IP地址的条目，实例之间的连接将成功。

好看！