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  • TomNicholas · 4 ✖

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  • Unrecognized chunk manager dask - must be one of: [] · 4 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
1561504841 https://github.com/pydata/xarray/issues/7856#issuecomment-1561504841 https://api.github.com/repos/pydata/xarray/issues/7856 IC_kwDOAMm_X85dEqxJ TomNicholas 35968931 2023-05-24T16:16:41Z 2023-05-24T16:26:15Z MEMBER

Solution for those who just found this issue:

Just re-install xarray. pip install -e . is sufficient. Re-installing any way through pip/conda should register the dask chunkmanager entrypoint.

@Illviljan I brought this up in the xarray team call today and we decided that since this only affects people who have previously cloned the xarray repository, are using a development install, and then updated by pulling changes from main; this problem only affects maybe ~10-20 people worldwide, all of whom are developers who are equipped to quickly solve it.

I'm going to add a note into the what's new entry for this version now - if you think we need to do more then let me know.

EDIT: I added a note to whatsnew in https://github.com/pydata/xarray/commit/69445c62953958488a6b35fafd8b9cfd6c0374a5, and updated the release notes.

 
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   Unrecognized chunk manager dask - must be one of: [] 1718410975
1556201913 https://github.com/pydata/xarray/issues/7856#issuecomment-1556201913 https://api.github.com/repos/pydata/xarray/issues/7856 IC_kwDOAMm_X85cwcG5 TomNicholas 35968931 2023-05-21T15:04:05Z 2023-05-21T15:04:05Z MEMBER

The only reason I didn't separate the chunkmanager entry points into local and other entry points was simplicity of code.

I didn't realise that might make a difference when it came to whether or not you have to pip install - I assumed that adding a new type of entry point would require re-installing no matter how I implemented it. If that's not the case perhaps we should adjust it (and re-release).

 
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   Unrecognized chunk manager dask - must be one of: [] 1718410975
1556191719 https://github.com/pydata/xarray/issues/7856#issuecomment-1556191719 https://api.github.com/repos/pydata/xarray/issues/7856 IC_kwDOAMm_X85cwZnn TomNicholas 35968931 2023-05-21T14:19:27Z 2023-05-21T14:35:22Z MEMBER

Yes, but I'm wondering what functional difference is that making here?

Have you tried doing the local pip install of the xarray dev version again? I.e. pip install -e . from the xarray folder. 

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   Unrecognized chunk manager dask - must be one of: [] 1718410975
1556182520 https://github.com/pydata/xarray/issues/7856#issuecomment-1556182520 https://api.github.com/repos/pydata/xarray/issues/7856 IC_kwDOAMm_X85cwXX4 TomNicholas 35968931 2023-05-21T13:36:22Z 2023-05-21T13:36:22Z MEMBER

Hmm, it's acting as if dask is not installed/importable. Any idea what's different about your setup vs the xarray CI?

Yes daskmanager is also registered via a different entry point, but that should already be set up to happen by default.

To see which chunk managers it can find you can call

```python from xarray.core.parallelcompat import list_chunkmanagers

list_chunkmanagers() ```

I expect it will return an empty list in your case, but that's the code we should be trying to debug on your system.

 
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   Unrecognized chunk manager dask - must be one of: [] 1718410975

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