[BUG] getting-started-movielens use of local disk in unintended ways

[mattf]

https://github.com/NVIDIA-Merlin/Merlin/blob/main/examples/getting-started-movielens/03-Training-with-HugeCTR.ipynb

MODEL_DIR = os.path.join(INPUT_DATA_DIR, "model/movielens_hugectr/")
!rm -r MODEL_DIR
!mkdir MODEL_DIR + "1"

this code does not rm -r .../model/movielens_hugectr and create .../model/movielens_hugectr/1. it removes MODEL_DIR and creates MODEL_DIR, +, and 1.

code to achieve the intended outcome is more like the following (-p needed because of nesting)

os.environ.putenv('MODEL_DIR', os.path.join(INPUT_DATA_DIR, "model/movielens_hugectr/"))
!rm -r $MODEL_DIR
!mkdir -p ${MODEL_DIR} + "1"

this error persists across example notebooks

[karlhigley]

Good catch! Could you open a PR to fix that @mattf?

EDIT: Actually, this has also already been addressed in the NVTabular version of these notebooks. I think these notebooks have just gotten a bit out of date.

[mattf]

i'm happy to after #165 is resolved