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
440233667,MDU6SXNzdWU0NDAyMzM2Njc=,2940,test_rolling_wrapped_dask is failing with dask-master,1217238,closed,0,,,5,2019-05-03T21:44:23Z,2019-06-28T16:49:04Z,2019-06-28T16:49:04Z,MEMBER,,,,"The `test_rolling_wrapped_dask` tests in `test_dataarray.py` are failing with dask master, e.g., as seen here:
https://travis-ci.org/pydata/xarray/jobs/527936531

I reproduced this locally. `git bisect` identified the culprit as https://github.com/dask/dask/pull/4756.

The source of this issue on the xarray side appears to be these lines:
https://github.com/pydata/xarray/blob/dd99b7d7d8576eefcef4507ae9eb36a144b60adf/xarray/core/rolling.py#L287-L291

In particular, we are currently `padded` as an xarray.DataArray object, not a dask array. Changing this to `padded.data` shows that passing an actual dask array to `dask_array_ops.rolling_window` results in failing tests.

@fujiisoup @jhamman any idea what's going on here?","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/2940/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue