html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/2531#issuecomment-460174589,https://api.github.com/repos/pydata/xarray/issues/2531,460174589,MDEyOklzc3VlQ29tbWVudDQ2MDE3NDU4OQ==,743508,2019-02-04T09:06:14Z,2019-02-04T09:06:43Z,CONTRIBUTOR,"Perhaps related - I was running into MemoryErrors with a large array and also noticed that chunksizes were not respected (basically xarray tried to process the array in one go) - but it turned out that i'd forgotten to install both `bottleneck` and `numexpr` and after installing both (just installing bottleneck was not enough), everything worked as expected.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,376154741
https://github.com/pydata/xarray/issues/2531#issuecomment-434843563,https://api.github.com/repos/pydata/xarray/issues/2531,434843563,MDEyOklzc3VlQ29tbWVudDQzNDg0MzU2Mw==,102827,2018-10-31T20:52:49Z,2018-10-31T20:52:49Z,CONTRIBUTOR,"The cause has been explained by @fujiisoup here https://github.com/pydata/xarray/issues/2514#issuecomment-433528586

> Nice catch!
> 
> For some historical reasons, `mean` and some reduction method uses bottleneck as default, while `count` does not.
> 
> `mean` goes through this function
> 
> [xarray/xarray/core/dask_array_ops.py](https://github.com/pydata/xarray/blob/b622c5e7da928524ef949d9e389f6c7f38644494/xarray/core/dask_array_ops.py#L23)
> 
> Line 23 in [b622c5e](/pydata/xarray/commit/b622c5e7da928524ef949d9e389f6c7f38644494)
>  def dask_rolling_wrapper(moving_func, a, window, min_count=None, axis=-1): 
> 
> It looks there is another but for this function.
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,376154741