Hi @cchalc, I try to use synapse.ml.lightgbm and crossvalidator on databrics. But it seems there is no spark ui jobs progress bar under the notebook cells. But if I use the simple model given a fixed number of hyperparameters, it will work.

I checked the CPU utlization, it is zero. I tried to limit data into 10, it works, but take also a long time. Do you know how to fix that issue? Thanks.