Zarr to Zarr capabilites?

[kbren]

I'm interested in using pangeo-forge-recipes to do pre-processing and re-chunking of various large Zarr datasets that are already on GCP. In the documentation for the XarrayZarrRecipe class (https://pangeo-forge.readthedocs.io/en/latest/pangeo_forge_recipes/recipe_user_guide/recipes.html) it says the inputs can be "any file format Xarray can read, including NetCDF, OPeNDAP, GRIP, Zarr." However, when I input Zarr files to FilePattern() with the file_type='zarr' keyword argument and then build and try to run a recipe I get an error:

OSError: [Errno -36] NetCDF: Invalid argument

I also note that FileType.Zarr is set to be an unopenable file type:

pangeo-forge-recipes/pangeo_forge_recipes/recipes/xarray_zarr.py

Line 56 in 45cc115

non_openable_file_types = [FileType.opendap, FileType.zarr]

Is this an error in the documentation or are there plans to make Zarr to Zarr recipes possible? OR are they already possible and I'm messing up keyword arguments?

Thanks!

[rabernat]

Hi Katie! This will definitely be supported in the next release of Pangeo Forge (see #256).

[kbren]

Awesome thanks for the quick reply Ryan! Any estimates on that release date?

[rabernat]

Hopefully by the end of the week!