issues: 262619571

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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
262619571 MDU6SXNzdWUyNjI2MTk1NzE= 1601 _FillValue and missing_value mismatch if float 4701070 closed 0     2 2017-10-03T23:12:25Z 2017-10-11T21:39:47Z 2017-10-11T21:39:47Z NONE      

I get the following error when _FillValue and missing_value are both floating-point decimals, even though they are the same value (-999.99):

File "/usr/local/lib/python2.7/dist-packages/xarray/backends/api.py", line 301, in open_dataset return maybe_decode_store(store, lock) File "/usr/local/lib/python2.7/dist-packages/xarray/backends/api.py", line 225, in maybe_decode_store drop_variables=drop_variables) File "/usr/local/lib/python2.7/dist-packages/xarray/conventions.py", line 955, in decode_cf decode_coords, drop_variables=drop_variables) File "/usr/local/lib/python2.7/dist-packages/xarray/conventions.py", line 888, in decode_cf_variables decode_times=decode_times) File "/usr/local/lib/python2.7/dist-packages/xarray/conventions.py", line 800, in decode_cf_variable "and decoding explicitly using " ValueError: ('Discovered conflicting _FillValue and missing_value. Considering opening the offending dataset using decode_cf=False, corrected the attributes', 'and decoding explicitly using xarray.conventions.decode_cf(ds)')

Here is the OPeNDAP end point that causes the error:

http://oos.soest.hawaii.edu/thredds/dodsC/hioos/tide_mhi

The error is unwarranted since the values match. My workaround thus far has been to first open the dataset with decode_cf=False, then I remove the duplicate missing_value attributes, and then decode explicitly using decode_cf(ds).

 
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