issues: 376116903

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
376116903 MDExOlB1bGxSZXF1ZXN0MjI3NDA3NTM2 2530 Manually specify chunks in open_zarr 31115101 closed 0     6 2018-10-31T19:04:05Z 2019-04-18T14:35:21Z 2019-04-18T14:34:29Z CONTRIBUTOR   0 pydata/xarray/pulls/2530
  • [x] Addresses #2423
  • [x] Tests added (for all bug fixes or enhancements)
  • [x] Fully documented, including whats-new.rst

This adds a chunks parameter that is analogous to Dataset.chunk. auto_chunk is kept for backwards compatibility and is equivalent to chunks='auto'. It seems reasonable that anyone manually specifying chunks may want to rewrite the dataset in those chunks, and the error that arises when the encoded Zarr chunks mismatch the variable Dask chunks may quickly get annoying. overwrite_encoded_chunks=True sets the encoded chunks to None so there is no clash. 

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