Not able to start the server using make server-dev

[Codehackerone]

I replaced the server Makefile to serve gpt2 without sharding like
SAFETENSORS_FAST_GPU=1 python -m torch.distributed.run --nproc_per_node=2 text_generation_server/cli.py serve gpt2
Yesterday, the server and router worked fine, but the next time when I restarted the server, it doesn't work.
The issue I'm facing

[OlivierDehaene]

You don't need to launch using torch.distributed.run when you are not sharding your model.
You can directly use text-generation-server serve gpt2.
Since you are running with --nproc_per_node=2, the two process are competing for the same address.