Modify zarr chunking as suggested in #4496 #4646
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alexamici
requested changes
Dec 3, 2020
xarray/tests/test_backends.py
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| ds_b = xr.open_zarr(store_target, consolidated=True, use_cftime=True) | ||
| assert xr.coding.times.contains_cftime_datetimes(ds_b.time) | ||
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| @requires_dask |
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Use xfail instead, because this is a real limitation with the current implementation.
shoyer
reviewed
Dec 3, 2020
alexamici
approved these changes
Dec 9, 2020
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Part of #4595
The changes involve only
open_dataset(..., engine=zarr)(and marginallyopen_zarr), in particular,_get_chunkshas been modified to fit #4496 (comment) option 1 chunking behaviour and align open_dataset chunking withdataset.chunk:autoit uses dask auto-chunking (if a preferred_chunking is defined, dask will take it into account as done indataset.chunk)-1it uses dask but no chunking.{}it uses the backend encoded chunks (when available) for on-disk data (xr.open_dataset) and the current chunking for already opened datasets (ds.chunk)Add some test
isort . && black . && mypy . && flake8whats-new.rst