Troubleshooting Failed Dataset Creation from CSV on Dashboard

·Jun 05, 2025 07:18 PM

Hey folks! I am trying to create a new dataset from CSV via the dashboard, and get hit with generic "Dataset creation failed -- Failed to create dataset". Is there a way to dig deeper what the issue might be?

9 comments

· Sorted by Oldest

RunLLM
APP
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Phoenix currently surfaces only a generic error message for CSV upload failures in the dashboard, making it hard to debug the root cause. There is an open issue to improve error messaging for CSV uploads, but as of now, the UI does not provide detailed error context for failed dataset creation from CSV files. You may need to check the CSV file for formatting issues or try uploading a minimal version to isolate the problem. For more details, see <https://github.com/Arize-ai/phoenix/issues/7277|GitHub issue #7277>. Would you like more detail on possible CSV formatting pitfalls or backend debugging steps? Sources: - <https://github.com/Arize-ai/phoenix/issues/7277|GitHub issue #7277>
💡 Hint: Mention RunLLM in the thread for followups.
Xander S.
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Hey ajoy, thanks for the message. This is a known pain point right now. Do you have access to the server logs?
Xander S.
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If you're able to send a small sample CSV to reproduce the issue, that would help!
ajoy
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gotcha! I can DM over the csv if thats okay -- its only 10 rows. We are using Arize-hosted as well
Xander S.
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sg
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Xander S.
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If you can reproduce the issue with made up data, that also works.
Xander S.
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Filed an issue here.
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Xander S.
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ajoy This should be resolved in arize-phoenix 10.7.1. The issue was due to a cap on the size of individual CSV fields. We've raised the cap, you should be able to upload your file now. Let us know if you run into further issues. There is still a styling issue with the upload CSV form where the column text overflows the dropdown. We'll address in a follow-up.
ajoy
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Sounds good -- thank you for the prompt help and fix!
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