ADF Dataflow Preview SQUISHED

Anatoly La Pere (London) 0 Reputation points
2025-01-23T17:17:51.34+00:00

Currently the ADF UI is not rendering the Dataflow preview properly -its SQUISHED. when exported to csv the data is there.

I have tried all possible debugging steps for the Dataflow data preview, including:

  • Clearing cache
  • Switching browsers
  • Adjusting sample size
  • Increasing CPU runtime
  • Changing browser appearance settings

Result: Issue persists.

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Azure Data Factory
Azure Data Factory
An Azure service for ingesting, preparing, and transforming data at scale.
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  1. Vinodh247 27,976 Reputation points MVP
    2025-01-26T07:30:36.64+00:00

    Hi ,

    Thanks for reaching out to Microsoft Q&A.

    The issue of the squished Dataflow preview in adf's UI is likely related to a rendering problem within the browser or a UI bug. Since you've already tried clearing the cache, switching browsers, adjusting sample sizes, and other steps, here are additional suggestions. Pls note that these are only generic suggestions, trying these might narrow down the issue though there is no gurantee that this might fix it immediately.

    1. Check Screen Resolution and Scaling:
    • Ensure your browser is not zoomed in or out.
      • Verify your system's screen scaling (in Windows, go to Display Settings and check scaling percentages).
    1. Use a Different Device:
      • Open adf on a different device or screen to rule out hardware-specific rendering issues.
    2. Browser Developer Tools:
      • Open the browser developer tools (press F12 in Chrome or Edge).
      • Look for any errors in the console tab that might indicate why the preview isn't displaying correctly.
      UI Language Settings:
      • Change the Azure portal language or region to see if it resolves the rendering issue.
      Disable Browser Extensions:
        - Some browser extensions can interfere with web applications. Disable extensions and refresh the page.
      
        **Test with Incognito Mode:**
      
           - Open the portal in Incognito or Private Browsing mode. This eliminates cached resources and extensions that could cause the issue.
      
           **Update Browser and System:**
      
              - Ensure you are using the latest version of your browser and that your operating system is up to date.
      
    3. ADF Version:
      • Check if your adf environment is using a preview or beta version. If so, switch to a stable release if possible.

    Please feel free to click the 'Upvote' (Thumbs-up) button and 'Accept as Answer'. This helps the community by allowing others with similar queries to easily find the solution.

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  2. Smaran Thoomu 20,285 Reputation points Microsoft Vendor
    2025-01-27T10:43:00.1166667+00:00

    Hi @Anatoly La Pere (London)

    Welcome to Microsoft Q&A platform.

    Thank you for reaching out and sharing your query about the data preview issue in Azure Data Factory (ADF) debug mode. We understand your concern and appreciate the screenshot you’ve shared.

    Based on our analysis and discussions with the internal team, here are a few details and steps to address this:

    Cause of the Issue: The issue occurs when there are numerous columns in the dataset, and the available screen size is insufficient to display the data preview clearly.

    Steps to Mitigate: Please try refreshing your browser and retrying the operation. This often resolves the issue. If the issue persists, you may consider testing the same scenario in Azure Synapse Analytics, where improvements are actively being worked on to enhance visibility.

    This issue has been fully addressed in Azure Data Factory (ADF). For Synapse Analytics, a fix is underway and should mitigate similar concerns in the near future.

    image

    If you continue to experience difficulties or have additional questions, please feel free to reach out, and we’ll be happy to assist further.

    Hope this helps. Do let us know if you any further queries.


    If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.


  3. Sina Salam 17,646 Reputation points
    2025-01-29T17:07:28.91+00:00

    Hello Anatoly La Pere (London),

    Welcome to the Microsoft Q&A and thank you for posting your questions here.

    I understand that your ADF UI is not rendering the Dataflow preview properly.

    My best recommended solution to solve this are the followings:

    1. Adjust Column Display in ADF Dataflow Preview by hover over the column headers and manually resize them and use the horizontal scrollbar to navigate columns.
    2. Try Using a Different ADF UI Theme (Dark/Light Mode Switch), some UI themes may affect how the preview is rendered.
    3. Check if Dataflow Supports Column Formatting, column auto-sizing is NOT directly available in ADF settings, but you can dynamically do the setting - https://learn.microsoft.com/en-us/azure/data-factory/tutorial-data-flow-dynamic-columns
    4. Use Higher-Resolution screen or Test on a Larger Monitor or External Display, if the issue is related to limited screen space, using a higher-resolution monitor may help.
    5. Use the Azure Feedback Portal to Report a UI Bug, if resizing columns doesn’t work and this is a persistent UI issue, report it to Microsoft for a fix.

    I hope this is helpful! Do not hesitate to let me know if you have any other questions.


    Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful.

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