Continue training XLNet on domain-specific data stuck in Creating features

Hello, I’m trying to finetune XLNet language model on an in-domain specific dataset that I have.
I used the example from /exampels/language_modeling , can be found here . I provided the dataset in the required format.

However it’s been days since I run the script and it’s stuck in features creation from dataset step : - Creating features from dataset file at .

Can you help me figure out what is wrong with this ?