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I'm working on AWS EMR running PySpark in Jupyter notebook. All of a sudden I cannot run the scripts any more. When I click run nothing happens. Below is a screenshot of when I try to change kernel. No kernels are displayed.

What's the problem here?

enter image description here

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  • Can you tell the status of your notebook from emr notebook console? Commented Oct 12, 2020 at 12:04
  • Getting the same problem. What did you do to solve the issue? Commented Jun 7, 2022 at 12:36

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I had the same problem, and apparently you also need Livy installed. If I don't add Livy to the list of apps, I can use the notebook for a few minutes and then it stops working. The docs don't mention this at all, but it does mention Livy needs to be there.

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