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Really large Lightroom library.lrlibrary

Community Beginner ,
Jun 29, 2020 Jun 29, 2020

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Hi,

 

My lightroom lrlibrary file has grown to be really huge. It is at 122 GB right now and a separate file, "Photos Library" is 27 GB in size. 

 

Any ideas what to do? This is really eating up the space on my laptop.

 

System details: macOS Catalina 10.15

 

Thanks, in advance, for your help.

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Mac, Performance, Problem or error

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Adobe Community Professional ,
Jun 29, 2020 Jun 29, 2020

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Photos Library is your library for the Photos app and has nothing to do with Lightroom so don't touch that. The Lightroom.lrlibrary file is controlled by the setting in Preferences->local storage. You should see a preference for photo cache size there and preferences to store smart previews and whether to store local copies for everything. Set the photo cache size to a smaller number and after a few days you should see the lrlibrary file decrease. Also you can generally turn off the local copy option. 

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Community Beginner ,
Jun 29, 2020 Jun 29, 2020

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Thanks! That's very useful. 

 

I had my options set to 25% of the available disk space (now reduced it to 10%) and had the "local copy option" set to off already. Hopefully the reduction (25% to 10%) will help.

 

Also, can I delete the current files in the local copy (in the "originals" folder) safely?

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Adobe Community Professional ,
Jun 29, 2020 Jun 29, 2020

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If you click on the cloud icon in Lightroom and it says "Synced and Backed up" you can delete files from the orginals folder inside the lrlibrary file indeed. But make absolutely sure Lightroom says everything is synced and backed up.

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Community Beginner ,
Jun 30, 2020 Jun 30, 2020

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I actually have a copy of the originals on my desktop -- I had imported it separately from the camera before adding it to LR as an album. So I'm assuming that should be fine?

 

Thanks for your informative responses btw!

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Adobe Community Professional ,
Jun 30, 2020 Jun 30, 2020

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That is probably good if you are sure they have been added into Lightroom and have been synced to the cloud. I generally recommend people back up their images separately themselves as the cloud system Adobe provides is not really a backup as you can easily delete images without a good way to get them back.

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New Here ,
Sep 08, 2021 Sep 08, 2021

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Hello ,

 

I have the same problem , big lrlibrary file and same System details 

but can't find the preferences ---> local storage   .... where ?

I've searched in Lightroom Preferences , Photo Preferences and also  MAc System Preferences ... did not find 

 

Thanks in advance for your help 

 

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Adobe Community Professional ,
Sep 08, 2021 Sep 08, 2021

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From the Lightroom menu select preferences and then click on Local storage. There you can select how much space the Lightroom Library can take up. Make sure to uncheck the two "store a copy" options

Screen Shot 2021-09-08 at 11.06.36 AM.png

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New Here ,
Sep 09, 2021 Sep 09, 2021

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Thanks , perfect !!

I understood and the problem with lrlibrary is solved now, but 

I still have a hudge file Mobile Downloads.Irdata  124.02 GB  

Can you help me to reduce it too ? 

 

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Adobe Community Professional ,
Sep 09, 2021 Sep 09, 2021

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quote

I still have a hudge file Mobile Downloads.Irdata  124.02 GB  

Can you help me to reduce it too ? 

 

 

Are you also using Lightrrom Classic, and are you syncing the Classic catalog with the cloud? If you are, you should be aware that when you add original images to the cloud from any of the Lightroom ecosystem apps, a copy of those originals are also downloaded into the synced Classic catalog. The default location for storing those downloaded images is the "Mobile Downloads.lrdata" folder/package on the system drive. If you want to sync your Classic catalog with the cloud, you cannot avoid having the cloud-based originals also stored on the local system, but you can change the location of them to say an external drive.....see the Lightroom Classic Preferences>Lightroom Sync tab. I believe that if you specify a different location you will also be given the option to have the current images moved from the Mobile Downloads.lrdata to the new location. If that doesn't happen, you can move them yourself using drag and drop in the Lightroom Classic Folders panel.

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New Here ,
Sep 09, 2021 Sep 09, 2021

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You are right in all your comments .

I already follow your instructions and moved the folder to my external drive .

 

Thank you very much  !! 

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