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/1440#issuecomment-309006084,https://api.github.com/repos/pydata/xarray/issues/1440,309006084,MDEyOklzc3VlQ29tbWVudDMwOTAwNjA4NA==,9341267,2017-06-16T11:49:38Z,2017-06-16T11:49:38Z,NONE,"@Zac-HD: Thanks, I submitted a separate issue: #1458","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,233350060
https://github.com/pydata/xarray/issues/1440#issuecomment-308821670,https://api.github.com/repos/pydata/xarray/issues/1440,308821670,MDEyOklzc3VlQ29tbWVudDMwODgyMTY3MA==,9341267,2017-06-15T18:01:51Z,2017-06-15T18:01:51Z,NONE,"I have encountered a related issue here.  When I read a file with netCDF4 compression into a Dataset, a subsequent call to write the dataset using `to_netcdf` fails.

For instance, using data from the POP model, I can convert output to netCDF4 using NCO
```
$ ncks --netcdf4 --deflate 1 $file nc4-test.nc
```
Then in Python:
```
ds = xr.open_dataset('nc4-test.nc',decode_times=False,decode_coords=False)
ds.to_netcdf('test-out.nc')
```
The write fails with: ""RuntimeError: NetCDF: Bad chunk sizes.""

If I include `format = NETCDF3_64BIT`, the write completes.

This seems like a bug.


","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,233350060