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/542#issuecomment-137379731,https://api.github.com/repos/pydata/xarray/issues/542,137379731,MDEyOklzc3VlQ29tbWVudDEzNzM3OTczMQ==,1177508,2015-09-03T08:41:00Z,2015-09-03T08:41:00Z,NONE,"cool, thanks ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,102177256 https://github.com/pydata/xarray/issues/542#issuecomment-136877509,https://api.github.com/repos/pydata/xarray/issues/542,136877509,MDEyOklzc3VlQ29tbWVudDEzNjg3NzUwOQ==,1217238,2015-09-01T22:05:02Z,2015-09-01T22:05:02Z,MEMBER,"Just fixed this issue on the dask side: https://github.com/blaze/dask/pull/622 ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,102177256 https://github.com/pydata/xarray/issues/542#issuecomment-133376299,https://api.github.com/repos/pydata/xarray/issues/542,133376299,MDEyOklzc3VlQ29tbWVudDEzMzM3NjI5OQ==,1177508,2015-08-21T11:22:06Z,2015-08-21T11:22:06Z,NONE,"Nope, it gives me the same error. It seem to only work with `ds.load()`. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,102177256 https://github.com/pydata/xarray/issues/542#issuecomment-133112303,https://api.github.com/repos/pydata/xarray/issues/542,133112303,MDEyOklzc3VlQ29tbWVudDEzMzExMjMwMw==,1177508,2015-08-20T18:40:24Z,2015-08-20T18:40:24Z,NONE,"I see, I'll try that, thanks ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,102177256 https://github.com/pydata/xarray/issues/542#issuecomment-133078118,https://api.github.com/repos/pydata/xarray/issues/542,133078118,MDEyOklzc3VlQ29tbWVudDEzMzA3ODExOA==,1217238,2015-08-20T17:07:08Z,2015-08-20T17:07:08Z,MEMBER,"So the issue here is that xray needs to load some arrays into memory as numpy arrays (e.g., to do indexing), but dask arrays don't know how to interact with numpy arrays: https://github.com/blaze/dask/issues/290 You can work around this by manually rechunking: ``` python with xray.open_mfdataset(...) as ds: ds = ds.chunk() a = ds['x'] * ds['y'] ``` Kind of awkward but it works for now. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,102177256