Bad file descriptor ERROR when run train_faster_rcnn.py about gluon-cv

[masahi]

Seeing the same error here. In my case, train_ssd.py works fine with num_worker = 6, but train_faster_rcnn.py gives the Bad file descriptor error whenever num_worker > 0. num_worker = 0 works fine.

I'm using mxnet 1.3 built from source recently.

[zhreshold]

try reduce the num_worker, linux systems have small limit of opened files.

See ulimit -n, I think it's 1024 in most linux distributions.

[zhreshold]

And make sure you update mxnet to the latest version.

[zhreshold]

This error is fixed in apache/mxnet#11159. So any MXNet version later than this merged PR should be fine.

[masahi]

thanks, just pulled in the latest changes. Working great now.

[yunfanLu]

Thank you !

I update the mxnet to the latest and fixed this Error