Troubleshooting data flow debug mode

Question

I need help with turning on data flow debug mode. I am receiving an error message that mentions a 'source' parameter, but I don't know where to maintain it. How can I turn on debug mode and fix this error?

Answer 1

Hi @Yeh, Joe

Since you were able to turn on debug mode successfully the next day, it's possible that the issue was temporary and has since been resolved. There could be several reasons why you encountered an error when trying to turn on debug mode for your data flow in Azure Data Factory. Here are a few possible reasons:

1. Temporary service issue: There could have been a temporary issue with the Azure Data Factory service that caused the error.
2. Incorrect data flow configuration: There could be an issue with your data flow configuration that caused the error. For example, there could be a problem with the source or sink transformation, or there could be an issue with the linked service for one of your datasets.
3. Network connectivity issues: There could be network connectivity issues that are preventing you from turning on debug mode. Make sure that you have a stable internet connection and that there are no firewall or proxy issues that are blocking your access to the Azure Data Factory service.

I hope this helps! Let me know if you have any further questions.

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Answer 2

Hi @Yeh, Joe ,

Thank you for reaching out to us with your query. 

The error message you are receiving while turning on data flow debug mode is related to the 'source' parameter. You need to maintain the 'source' parameter in the data flow debug mode settings.

Here are the steps to turn on data flow debug mode and fix the error:

1. Open the Azure Data Factory UI and navigate to the data flow you want to debug.
2. Click on the 'Debug' button in the top menu bar.
3. In the 'Debug Settings' window, select the 'Data flow debug settings' tab.
4. Turn on the 'Data flow debug mode' toggle button.
5. In the 'Data flow debug settings' section, you will see a 'Source' field. Enter the name of the source you want to debug in this field.
6. Click on the 'OK' button to save the changes.
7. Now, run the data flow in debug mode to see the debug output.

If you still face any issues, please provide more details of your implementation, and the specific data flow you are trying to debug. This will help me provide more specific guidance.

Reference: Mapping data flow Debug Mode

I hope this helps! Let me know if you have any further questions.

Answer 3

Hi Smaran

Thanks for your help but I encountered the error upon clicking the 'debug ' button, so there was no place to maintain the 'Source' field in the debug setting. However, the next day, I can turn on the debug mode successfully. Still don't have a clue.