facebookresearch / facebookresearch/detectron2

OSError: [Errno 113] No route to host

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Description

Thank you for sharing your excellent work. I trained a project using detectron2 as backbone. But when I trained a model in a machine with 8 GPUs, I met OSError: [Errno 113] No route to host as follow:
![image](https://user-images.githubusercontent.com/24863806/198558338-9ac4a810-7e0e-4e67-b45d-81d7de36a89b.png)
![image](https://user-images.githubusercontent.com/24863806/198558434-840e5caa-99f5-4362-bcb6-e60fa34360a5.png)
I found the error was in the detectron2/detectron2/engine/launch.py.
I did not enable firewall, which might cause this error.
![image](https://user-images.githubusercontent.com/24863806/198559305-5d9e35c4-4f48-40cc-a392-23f5efc1586d.png)
Now I don't know how to solve it.

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