issue_comments: 836869041

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https://github.com/pydata/xarray/issues/5276#issuecomment-836869041 https://api.github.com/repos/pydata/xarray/issues/5276 836869041 MDEyOklzc3VlQ29tbWVudDgzNjg2OTA0MQ== 11815787 2021-05-10T15:50:37Z 2021-05-10T15:50:37Z NONE

Hi there - are you able to narrow down the problem a little bit for us? Can you get the same error by opening any one file individually with xarray.open_dataset()? What if you use the netCDF4 library to access a variable directly without xarray? Failing that can you give us a file/files for which this fails, so that we can reproduce the problem locally? Also, have you tried using a more recent version of netCDF4? The most recent version on PyPI seems to be 1.5.6, but you're using 1.4.2.

As mentioned above, the error only happens after successful call the func for a few times, i.e, first few calls it works fine as expected. "Can you get the same error by opening any one file individually with `xarray.open_dataset()" Yes, I can. But the whole point is to use open_mfdataset. 

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