We restarted Zeppelin and the variables got cleared. That's good because the variables got cleared. That's not good because we can't have a user calling the system administrator to restart Zeppelin just because the user wants the variables in their notebook cleared. My actual problem is that I have a large notebook with many cells and lots of code. So if I rename a variable in a few cells, but I forget to rename it in another cell, my program will keep running since the old variables are held in memory. A Zeppelin restart is then necessary for me to find out that the notebook is actually not going to work. There must be a way to easily reset all variables. If it was just my code, I would not be worried. But we are about to release Zeppelin to our users: it is a matter of time before someone runs into this problem. We also use a product here called Databricks which runs notebooks of their own. The same type of problem exists there, but they give you two ways to take care of the problem. One is by running the command "%reset -f' in a cell. I tried that in Zeppelin and it did not work.
... View more
