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Configuring Jupyter Timeout

If you are running a Jupyter notebook with a long-running cell, you may encounter the following error:

[NbConvertApp] ERROR | Timeout waiting for execute reply (30s). If your cell should take longer than this, you can increase the timeout with: c.ExecutePreprocessor.timeout = SECONDS in jupyter_nbconvert_config.py

This indicates that the cell caused Jupyter to timeout. You can avoid this by configuring a longer timeout. Here's how to do it in the pre-setup script of a custom environment definition:

echo "c.ExecutePreprocessor.timeout = $SECONDS" >> /home/ubuntu/.ipython/profile_default/ipython_nbconvert_config.py
chown ubuntu:ubuntu /home/ubuntu/.ipython/profile_default/ipython_nbconvert_config.py

Substitute an appropriate value for $SECONDS. Note the chown command - this is needed because the pre-setup script runs as the root user, so the file ownership must be changed back to the ubuntu user in order to avoid a permissions error during your run.  Keep in mind this is for batch runs.

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