Lightroom Classic: Import hangs

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  • Updated 1 year ago
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I'm transitioning from Aperture to Lightroom and trying to import a collection of photos that has several tens of thousands of photos in it.  Needless to say, there is some cruft and duplicates that have popped up over the last 20 years.

These photos are hosted on my NAS and served to my windows PC via the windows file sharing protocol (cifs/samba).  I'm ADDing them to my library (not copying or moving them).  I find that the Lightroom import will hang when it comes across two photos that have the same filename but with different case (upper/lower) letters.


So, for example, if I'm trying to import 100 photos and, after importing 20,  LR finds a photo `p1010042.jpg` and also finds `P1010042.JPG` (not sure if it matters that they are in the same folder) then the import will just stop.  I have to cancel the import and restart it.  Then it will import another 10-30 files.  Then another 10-30.  Eventually it'll come down to a handful of files and if I deselect the duplicate filename, the import will finish flawlessly.


This is happening on LR Classic 8.3.1.
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Miles Bintz

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Posted 1 year ago

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Photo of Carlos Cardona

Carlos Cardona

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Of course, it can’t handle 2 files with the same name, which is why, during import, you should ALWAYS rename your files to change it from the camera file name (which will reset to “1” when it runs out of numbers, at 10 or a 100 thousand, depending on your camera. Some people use dates, I use names like “Chicago19-nextnumber” (I check the last number used in the Chicago folder, then start numbering after that).
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Miles Bintz

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Sure.  But finding 100 filename conflicts in 60,000 files can be rather difficult.  For the import to hang or silently fail is NOT an acceptable behavior even if there is a filename conflict.  It should handle it and show a dialog listing the conflict.
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Carlos Cardona

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Totally agree!
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Steve Valentine

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On the NAS, are you using non-Windows based file storage that allows dup files within a file location? 
Windows doesn't allow duplicate file names within a given folder so the files have to be unique based upon the folders where the files reside, if using Windows based storage. 

What happens when duplicate files have the same casing? Does Lr hang on those duplicates? 
Are dup files the same image, e.g. same capture date, same size, same image? 

There should be a way to find the duplicate files using Windows utilities like PowerShell before submitting to Lr for import.

Most likely, you have found a bug with Lr import related to how the image info is stored in a catalog.