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| sha | message | author_date | committer_date | raw_author | raw_committer | repo | author | committer |
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| 851dadeb0338403e5021c3fbe80cbc9127ee672d | No chunk warning if empty (#6402) * Test with warning when loading Zarr with empty dimension with chunks If an array has zero size (due to an empty dimension), it is saved as a single chunk regardless of Dask chunking on other dimensions (#5742). If the `chunks` parameter is provided for other dimensions when loading the Zarr file, xarray gives a warning about potentially degraded performance from splitting the single chunk. When the array has zero size, this warning seems inappropriate because: - performance degradation on an empty array should be negligible. - we don't always know if one of the dimensions is empty until loading. I would use the `chunks` parameter for dimensions that have known chunksize (to specify some multiple of that chunksize), but this only works without warning when the array is nonempty. * Don't check chunk compatibility if variable is empty/has no size * Docs describing removal of warning for `chunks` with empty array Co-authored-by: Deepak Cherian <dcherian@users.noreply.github.com> Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com> | 2022-04-09T20:27:39Z | 2022-04-09T20:27:39Z | 8e3ae398883b443a2f202292cd29e75d1cbcf011 | cd792325681cbad9f663f2879d8b69f1edbb678f | 13221727 | 4666753 | 19864447 |