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  • pinshuai · 1 ✖

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  • Writing a netCDF file is unexpectedly slow · 1 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
832864415 https://github.com/pydata/xarray/issues/2912#issuecomment-832864415 https://api.github.com/repos/pydata/xarray/issues/2912 MDEyOklzc3VlQ29tbWVudDgzMjg2NDQxNQ== pinshuai 34693887 2021-05-05T17:12:19Z 2021-05-05T17:12:19Z NONE

I had a similar issue. I am trying to save a big xarray (~2 GB) dataset using to_netcdf().

Dataset:

I tried the following three approaches:

  1. Directly save using dset.to_netcdf()
  2. Load before save using dset.load().to_netcdf()
  3. Chunk data and save using dset.chunk({'time': 19968}).to_netcdf()

All three approaches failed to write to file which cause the python kernel to hang indefinitely or die.

Any suggestion?

 
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   Writing a netCDF file is unexpectedly slow 435535284

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