issue_comments: 277306575

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https://github.com/pydata/xarray/issues/1244#issuecomment-277306575 https://api.github.com/repos/pydata/xarray/issues/1244 277306575 MDEyOklzc3VlQ29tbWVudDI3NzMwNjU3NQ== 1217238 2017-02-03T17:17:01Z 2017-02-03T17:17:01Z MEMBER

Just to be clear -- you overrode the file on disk while you had it open in another session? Indeed, that is definitely not a recommended workflow, so I'm not surprised things broke. An error would have been friendlier than silent corruption, but maybe the netcdf devs have reasons for this behavior.

Xarray loads data from disk lazily by default, so if you want to overwrite the data on disk you should call .load() or .compute() first. But generally, I recommend always creating new files. Treating data files as immutable makes it much harder to accidentally overwrite the wrong data.

 
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