In my application I have a status log which is kept in Core Data. This gives a 
nice interface and persistence for the log. 
However, I would like to be able to save the log to disk independent from other 
parts of my Core Data model. This is needed to prevent the log from getting 
lost in the event of a power failure or program crash. The uptime is supposed 
to be several months, at least, so things should be saved at some point. 
 
It is possible to assign the log objects to a second persistent store, but that 
gives no second 'save action' to save it independently. The only save action I 
found is in the managedObjectContext but that saves everything, destroying the 
undo stack. So should I have two managed object contexts? And then, also with 
another persistent store coordinator? Or is there a simpler way?
 
 
Thanks for your time,
Arthur 
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