Thanks Rafael! Disabling hdf5 file locking solved it.
export HDF5_USE_FILE_LOCKING=FALSE
I didn't have to do this for v3 mounts before. The only time I remember of
users having to use this is when using xarray and dask to open the netcdf file
in parallel. Anyhow I am happy that it works now. Thanks a lot for your help.
Please see the results below -
export HDF5_USE_FILE_LOCKING=TRUE
ncdump -h -s MERRA2.19800101.A1.05x0625.NA.nc4 |tail -2
ncdump: MERRA2.19800101.A1.05x0625.NA.nc4: MERRA2.19800101.A1.05x0625.NA.nc4:
NetCDF: HDF error
export HDF5_USE_FILE_LOCKING=FALSE
ncdump -h -s MERRA2.19800101.A1.05x0625.NA.nc4 |tail -2
:_Format = "netCDF-4"
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https://bugs.launchpad.net/bugs/1903974
Title:
issue reading netcdf4 files with nfs v3 on ubuntu 20.04
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