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/3785#issuecomment-592191561,https://api.github.com/repos/pydata/xarray/issues/3785,592191561,MDEyOklzc3VlQ29tbWVudDU5MjE5MTU2MQ==,11326731,2020-02-27T21:42:54Z,2020-02-27T22:41:48Z,NONE,"@ngreenwald you need to update your version of xarray to 0.12.2 or greater and use the `load_dataarray` method instead of the `open_dataarray` one, in which case, the `cache` option is not necessary. More info here: [http://xarray.pydata.org/en/stable/generated/xarray.load_dataarray.html](http://xarray.pydata.org/en/stable/generated/xarray.load_dataarray.html)

Here your example corrected, showing the expected output:

```python
import xarray as xr
import numpy as np
import os

# create two different xarrays with different sizes and coords
test_xr1 = xr.DataArray(np.zeros((5, 5, 3)),
                        coords=[range(5), range(5), [""x1"", ""y1"", ""z1""]],
                        dims=[""1"", ""2"", ""3""])
test_xr2 = xr.DataArray(np.zeros((10, 2, 3)),
                        coords=[range(10), range(2), [""x2"", ""y2"", ""z2""]],
                        dims=[""1"", ""2"", ""3""])

display(test_xr1.coords)
display(test_xr2.coords)
```
```
Out:
Coordinates:
  * 1        (1) int64 0 1 2 3 4
  * 2        (2) int64 0 1 2 3 4
  * 3        (3) <U2 'x1' 'y1' 'z1'

Coordinates:
  * 1        (1) int64 0 1 2 3 4 5 6 7 8 9
  * 2        (2) int64 0 1
  * 3        (3) <U2 'x2' 'y2' 'z2'
```
```python
# save first xarray, reload it, and inspect coords
test_xr1.to_netcdf(""test_xr.xr"")
loaded_xr = xr.load_dataarray(""test_xr.xr"")
loaded_xr.coords
```
```
Out:
Coordinates:
  * 1        (1) int64 0 1 2 3 4
  * 2        (2) int64 0 1 2 3 4
  * 3        (3) object 'x1' 'y1' 'z1'
```
```python
# remove first xarray, save second with the same name, and load it
os.remove(""test_xr.xr"")
test_xr2.to_netcdf(""test_xr.xr"")
loaded_xr = xr.load_dataarray(""test_xr.xr"")
loaded_xr.coords
```
```
Out:
Coordinates:
  * 1        (1) int64 0 1 2 3 4 5 6 7 8 9
  * 2        (2) int64 0 1
  * 3        (3) object 'x2' 'y2' 'z2'
```","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,568705055