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Help Center/ DataArts Studio/ FAQs/ DataArts Migration (Real-Time Jobs)/ How Do I Troubleshoot a Network Disconnection Between the Data Source and Resource Group?

How Do I Troubleshoot a Network Disconnection Between the Data Source and Resource Group?

Updated on 2025-01-22 GMT+08:00

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Symptom

During the configuration of a real-time migration job, an exception is reported indicating that the data sources at the source and destination are disconnected from the resource group.

Figure 1 Abnormal connectivity

Solution

Troubleshoot this issue based on the following table.

**Table 1** Troubleshooting network disconnection
Type	Exception	Method
Data source - CDM exception	Instance status	Check whether the cluster is running properly.
Data source - CDM exception	Connectivity	If the CDM cluster and the data source are in the same VPC, ensure that the private IP address of the CDM cluster has been added to the inbound rule of the security group of the data source and that the IP address of the data source has been added to the outbound rule of the security group of the CDM cluster. If the CDM cluster and the data source are not in the same VPC, create a VPC peering connection to connect them. Add the private IP address of the CDM cluster to the inbound security group rule of the data source and add the data source IP address to the outbound security group rule of the CDM cluster. For details, see Creating a DataArts Studio Data Connection.
Data source - resource group exception	Resource group status	Access a DataArts Studio instance and click the Resources tab. On the displayed Real-Time Resources tab page, check whether the resource group is running.
Data source - resource group exception	Connectivity	Access the Management Center page, choose Manage Data Connections, and check whether the IP address or domain name of the data connection is the private IP address and whether an agent is associated with the connection. Access a DataArts Studio instance and click the Resources tab and then the Real-Time Network Connections tab. Check whether a network connection to the VPC and subnet of the data source has been created and whether the network connection has been associated with a resource group. Check whether the network segment of the resource group is allowed by the inbound rule of the security group of the data source instance. Verify that all configurations are correct by referring to Enabling Network Communications.