Cannot export python notebook to ipython notebook or html with 404 errors

Ying LI 1

Hello,

I edited a python notebook in databricks and I'd like to export it as ipython notebook or html file. However, I got the following error:

HTTP ERROR: 404
Problem accessing /serialize/ipython/3004454368542301. Reason:

Could not serialize source for 3004454368542301

Besides, I cannot clone this notebook, either, with a very long error message that I didn't understood...

Could any one please help me here?
Thanks in advance!

MartinJaffer-MSFT 26,061 Reputation points

2022-08-19T17:22:23.547+00:00

Hello and welcome to Microsoft Q&A @Ying LI

I see you are unable to export a notebook from Databricks. Is this using the graphical interface, or using a command prompt?

Are you able to open the notebook and look inside at the contents?

404 indicates the notebook is missing. It does not indicate permissions issue. Since you can see such a notebook exists in the collection, it does not make sense to get a 404. The only think I can think of, is a mismatch like when you go to the town library to check out a book, and while the records say it is available, the shelf is empty.

Thus I ask whether you can open the notebook (while in databricks, not export). If you can see the contents of the notebook, then the problem is in the export part. If you cannot see the contents of the notebook, then the problem is something half-deleted the notebook.

1 answer

Ying LI 1 Reputation point

2022-08-23T09:03:57.603+00:00

Hello @MartinJaffer-MSFT ,
Thank you for your reply!
I can open the notebook correctly: running commands, modifying code, viewing outputs etc. The problem occurs only when I wanted to export the notebook to ipython notebook or html.
Meanwhile I've checked with my colleagues and it seems that this http 404 export error is due to the fact of large size of notebook - when it exceeds 8MB, the export fails. For example when I cleared all output results, the export functionality works well.
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MartinJaffer-MSFT 26,061 Reputation points

2022-08-23T18:24:48.977+00:00

I had not considered the size would be an issue. There is an article about notebook export failing with a different message at 10 MB or more. It recommends using the Databricks CLI for export in those cases.

Thank you for sharing your resolution @Ying LI . Since you mentioned clearing output results helped, I wouldn't rule out the output results themselves as a cause, not just size.
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