warning : cloud service cannot connect to the integration Runtime(self-hosted)node through azure relay.You may not be able to use the Data Factory copy wizard to create data pipelines for copying data to/from on-premises data stories. How to solve this

Question

Answer 1

Hi RAMU.K,

Thanks for reaching out to Microsoft Q&A.

The error message you are seeing usually happens when the Integration Runtime node cannot connect to the Azure Relay, which is necessary for communication between your on-premises environment and & adf. Try the following checklist which will help you narrow down the issue and probably fix it. Let me know once you have tried.

1. Check Proxy Settings

• Integration Runtime Node Proxy Settings:
  • Open the Integration Runtime Configuration Manager on your node.
    • Go to the Settings tab.
      • Ensure the proxy settings are correctly configured to allow outbound traffic to Azure Relay.

2. Firewall and Network Configuration

• Allow Necessary Ports:
  • Make sure that the following ports are open on your firewall:

     - Port 443 for HTTPS traffic to Azure.
    
           - Port 9350-9354 for outbound traffic to Azure Relay.
    

• Whitelist Azure Data Center IPs:
  • Ensure that the IP addresses of the Azure Data Centers are whitelisted. You can find the list of IP ranges here.

3. Service Principal and Access Permissions

• Ensure the service principal used for the Integration Runtime has the necessary permissions to access Azure Data Factory and the resources involved.

4. Update Integration Runtime

• Make sure that the IR is up-to-date.
  • Go to the Update tab in the Integration Runtime Configuration Manager.
    • Check for any available updates and apply them.

5. Network Connectivity and DNS

• DNS Configuration:
  • Ensure that your network can resolve the Azure Relay DNS names. You may need to configure your DNS settings if there are any restrictions.
  • Network Connectivity:
    • Verify that there are no intermittent network issues causing the disconnection.

6. Re-register the Integration Runtime

• Sometimes, reregistering the IR can resolve connectivity issues.
  • In the Integration Runtime Config Manager, go to the Settings tab.
  • Select Stop Service and then Register again.

7. Logs and Diagnostics

Check the logs and diagnostics available in the Integration Runtime Configuration Manager under the Diagnostics tab for more detailed error messages.

https://docs.microsoft.com/en-us/azure/data-factory/create-self-hosted-integration-runtime

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