I am working with Azure Databricks jupyter notebooks and have time-consuming jobs (complex queries, model training, loops over many items, etc.).

Every time I close the browser (or step away for a long time) of some running notebook, even before the cluster time-out time, notebooks and cluster will become idle. When I open the notebook again, it appears as if it the notebook resumes, but it does not continue executing. I'd like to keep the notebook running in the background at night or when I close the browser. Any thoughts ?