id,node_id,number,state,locked,title,user,body,created_at,updated_at,closed_at,merged_at,merge_commit_sha,assignee,milestone,draft,head,base,author_association,auto_merge,repo,url,merged_by
493292920,MDExOlB1bGxSZXF1ZXN0NDkzMjkyOTIw,4461,closed,0,Allow fsspec/zarr/mfdataset,6042212,"Requires https://github.com/zarr-developers/zarr-python/pull/606


<!-- Feel free to remove check-list items aren't relevant to your change -->

 - [ ] ~Closes #xxxx~
 - [x] Tests added
 - [x] Passes `isort . && black . && mypy . && flake8`
 - [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
 - [x] New functions/methods are listed in `api.rst`
",2020-09-25T18:14:38Z,2021-02-16T15:36:54Z,2021-02-16T15:36:54Z,,c68e6a6bc886c921ffe318acfa4fc2f9bc2805d2,,,0,ef857407de081ef62797af6603dd85708c78f450,d1faca5efb60ada3c920e2313300bba6b19e624d,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/4461,
556917021,MDExOlB1bGxSZXF1ZXN0NTU2OTE3MDIx,4823,closed,0,Allow fsspec URLs in open_(mf)dataset,6042212,"
- [x] Closes #4461 and related
- [x] Tests added
- [x] Passes `pre-commit run --all-files`
- [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [x] New functions/methods are listed in `api.rst`

",2021-01-18T16:22:35Z,2021-02-16T21:26:53Z,2021-02-16T21:18:05Z,2021-02-16T21:18:05Z,8bf415a15cc17995df5afa9af27409d903d48dcc,,,0,40f96033c01a50ffc45036db5a6c8dd771ae4e4f,735a3590ea4df70e1e5be729162df2f8774b3879,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/4823,
1565311663,PR_kwDOAMm_X85dTMKv,8339,closed,0,Reduce dask tokenization time,6042212,"When using dask (e.g., `chunks={}` with a zarr dataset), each dask.array gets a token. Calculating this token currently hits a recursive path within dask and is relatively slow (~10ms), which adds up for many variables. This PR makes a simpler but still unique token.

An example profile of open_dataset before: 
<img width=""1049"" alt=""Screenshot 2023-10-19 at 13 19 43"" src=""https://github.com/pydata/xarray/assets/6042212/f8c4d9a8-cf63-440f-88e4-eddd6afcbb48"">

and after
<img width=""1030"" alt=""Screenshot 2023-10-19 at 13 19 52"" src=""https://github.com/pydata/xarray/assets/6042212/b2a7b9d9-ce08-4571-be91-b3a92c85a92f"">
",2023-10-19T17:22:06Z,2023-10-20T23:13:44Z,2023-10-20T23:13:43Z,2023-10-20T23:13:43Z,86b4167da6dab18cbb11e77a1f1c38900f6f1b62,,,0,5bb296963e7de938a1bc63a65d01fdf5df2b9a7c,8dddbca924fac1012245f510dca282f7f125cb06,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/8339,