calling another notebook with mssparkutils.notebook.run - Kernel doesn't exist

Question

i am not able to execute a notebook with mssparkutils.notebook.run. However the magic command %run 'notebook' works. i am getting an error like this:

com.microsoft.spark.notebook.msutils.NotebookExecutionException: Fetch notebook content for <notebook> failed with exception: Request to fetchNotebookContent failed with status code 400 error {"message":"Kernel doesn't exist: <id>. Please reopen notebook or contact support."

Answer 1

Hi Garon Fabienne,

Thank you for posting query in Microsoft Q&A Platform.

I am able to run my notebook using mssparkutils.notebook.run(). It seems intermittent issue to me. Could you please try to close all notebook sessions and retry opening everything freshly and see if that helps?

Please check below my repro details.

Hope this helps. If not, please consider having support ticket so that dedicated team can have deeper look internally on logs to understand more and help with resolution. Click here to create support ticket.

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Please consider hitting Accept Answer button. Accepted answers help community as well.

Answer 2

If your notebook is running in a GitHub integrated Synapse environment and you keep getting "Request to fetchNotebookContent failed with status code 400 error System level submitter mismatch. kernelId:...", check that your Session Configurations do not have "Run as Managed Identity" enabled - this can block usage of mssparkutils.notebook.run executions.