ValueError('cannot mmap an empty file')

[s5248]

FileExistsError: [Errno 17] File exists: '/000000_shard_access_times'

During handling of the above exception, another exception occurred:

InstantiationException: Error in call to target 'diffusion.datasets.laion.laion.build_streaming_laion_dataloader':
ValueError('cannot mmap an empty file')
full_key: dataset.train_dataset
ERROR:composer.cli.launcher:Rank 0 crashed with exit code 1.
Waiting up to 30 seconds for all training processes to terminate. Press Ctrl-C to exit immediately.
Global rank 0 (PID 34542) exited with code 1
ERROR:composer.cli.launcher:Global rank 0 (PID 34542) exited with code 1

I'm wondering why it need to write in the root directory?, it seems set self.local to empty, please help

[Landanjs]

Apologies for the delay! This might be from an ungraceful termination in the streaming process. Did you have have a previous run that failed?

Could you try streaming.base.util.clean_stale_shared_memory? This should remove any corrupted data