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/2551#issuecomment-437717439,https://api.github.com/repos/pydata/xarray/issues/2551,437717439,MDEyOklzc3VlQ29tbWVudDQzNzcxNzQzOQ==,1217238,2018-11-11T23:52:34Z,2018-11-11T23:52:34Z,MEMBER,"Previously the indexing operation would sometimes return a NumPy array. Now it's always lazy, so accessing the dataset when the file is closed fails.

Perhaps we should raise our own error though instead of just passing things through to netCDF4.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,379177627
https://github.com/pydata/xarray/issues/2551#issuecomment-437707332,https://api.github.com/repos/pydata/xarray/issues/2551,437707332,MDEyOklzc3VlQ29tbWVudDQzNzcwNzMzMg==,1217238,2018-11-11T21:37:42Z,2018-11-11T21:37:42Z,MEMBER,"My best guess is that `ds.thick.isel(x=('z', [1, 3, 4]), y=('z', [7, 2, 1]))` previously loaded data into memory (and cached it) but now operates lazily.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,379177627
https://github.com/pydata/xarray/issues/2551#issuecomment-437618316,https://api.github.com/repos/pydata/xarray/issues/2551,437618316,MDEyOklzc3VlQ29tbWVudDQzNzYxODMxNg==,1217238,2018-11-10T20:18:31Z,2018-11-10T20:18:31Z,MEMBER,"@fmaussion Yep, that looks a bug on your end. Were you using `autoclose=True` before? If so, that could have hidden the issue, because exiting the `with` block didn't use to actually close the file in that case.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,379177627
https://github.com/pydata/xarray/issues/2551#issuecomment-437483895,https://api.github.com/repos/pydata/xarray/issues/2551,437483895,MDEyOklzc3VlQ29tbWVudDQzNzQ4Mzg5NQ==,1217238,2018-11-09T20:22:03Z,2018-11-09T20:22:03Z,MEMBER,"I am slightly regretting not doing a release candidate here, but hopefully this should be straightforward to fix.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,379177627
https://github.com/pydata/xarray/issues/2551#issuecomment-437471566,https://api.github.com/repos/pydata/xarray/issues/2551,437471566,MDEyOklzc3VlQ29tbWVudDQzNzQ3MTU2Ng==,1217238,2018-11-09T19:37:15Z,2018-11-09T19:37:15Z,MEMBER,"Oh my -- sorry about that!

Thinking about this a little more, I guess this should not be too surprising since I don't think we have any dask integration tests that cover appending to existing files. Maybe a good place to start would be adding one of those, e.g., adapted from this existing test:
https://github.com/pydata/xarray/blob/575e97aef405c9b473508f5bc0e66332df4930f3/xarray/tests/test_distributed.py#L66","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,379177627