issue_comments: 881100884

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https://github.com/pydata/xarray/issues/5604#issuecomment-881100884 https://api.github.com/repos/pydata/xarray/issues/5604 881100884 IC_kwDOAMm_X840hIhU 49487505 2021-07-16T00:55:25Z 2021-07-16T00:57:19Z NONE

This will likely need much more detail. Though to start: what's the source of the 1000x number? What happens if you pass compat="identical", coords="minimal" to open_mfdataset? If that fails, the opening operation may be doing some expensive alignment.

Trying this gives me "conflicting values for variable 'ubar' on objects to be combined.", actually it makes sense as identical requires values to be the same right? 

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