Error while running operations

[deepak6422]

I am trying to perform an operation to find subtotal group by CustNmbr. Why I am getting this error?

[deepak6422]

@anmyachev Can you please help with this issue?

[devin-petersohn]

This is an output from a Ray crash. What operating system are you running on?

[deepak2431]

I am using AWS Cloud Machine. My operating system is Ubuntu 20.04 with 16 cores and 32 GB Ram.

[devin-petersohn]

This is a recent issue with Ray 1.2. I have opened an issue here to track it.

ray-project/ray#14279

Downgrading to Ray 1.1 should solve the issue.

[deepak2431]

Thanks for your response Devin.
Can you please let me know how can I downgrade the ray version to 1.1?

[devin-petersohn]

pip install ray==1.1