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CDM集群创建时，需要注意：虚拟私有云、子网、安全组与DWS集群保持一致，确保网络互通。 创建DWS的数据连接 开发DWS SQL前，我们需要在“管理中心 > 数据连接”模块中建立一个到DWS的连接，数据连接名称为“dws_link”。
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
CDM通过DES（数据快递服务）迁移1个月前的历史数据，迁移路径如下： CDH → DES → CDM（华为云） → OBS → CDM（华为云） → MRS DES适用场景：数据量大，用户私有云与华为云无专线打通，用户私有云网络到公网带宽有限。
DataArts Studio实例（指DataArts Studio实例中的CDM集群）与MRS集群同区域情况下，同虚拟私有云、同子网、同安全组的不同实例默认网络互通；如果同虚拟私有云但子网或安全组不同，还需配置路由规则及安全组规则，配置路由规则请参见如何配置路由规则章节，配置安全组规则请参见如何配置安全组规则章节
DataArts Studio实例（指DataArts Studio实例中的CDM集群）与MRS集群同区域情况下，同虚拟私有云、同子网、同安全组的不同实例默认网络互通；如果同虚拟私有云但子网或安全组不同，还需配置路由规则及安全组规则，配置路由规则请参见如何配置路由规则章节，配置安全组规则请参见如何配置安全组规则章节
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