Calibre taking 30+ minutes to start with 20K book library - Page 4

kovidgoyal · Yesterday, 04:32 AM

Run

calibre-debug -g

in a command prompt and post the log

JSWolf · Yesterday, 06:33 AM

Quote:

Originally Posted by TobyReads

I'm on Windows 11 and have been experiencing this problem for the past few months. Strangely, the startup time gets longer and longer. It started with about 30 secs. Now it's 4-6 minutes.

I have 486 books in my library. Checked the database. No errors.

I used to run the library from OneDrive. Moved it out of OneDrive. Makes no difference.

Cleared the cache. Makes no difference.

I whitelisted all Calibre folders in Windows Defender. Makes no difference.

Lastly, a huge thank you to all the developers of Calibre. Amazing application.

Is your calibre library on an internal hard drive? Have you tried compacting the database?

In the toolbar right click on the database icon. Then Library maintenance > Check library. It will vacuum the database (compress the database).

TobyReads · Yesterday, 07:22 AM

@kovidgoyal

I ran the debug but I couldn't locate any log file, so I copy/pasted the command prompt output into the attached file.

It appears to be a permission problem in the ".caltrash" folder in the library folder.

TobyReads · Yesterday, 07:26 AM

@JSWolf

Yes, the library is located on an internal SATA SSD drive.

I have checked and compacted the database several times, but the loading problem persists.

kovidgoyal · Yesterday, 07:37 AM

You can always delete .caltrash if you want. It' used ot store recently deleted books. But that's most likely not a permission problem, instead you have some other software scanning that folder which prevents calibre from accessing it. Typically OneDrive/DropBox/Anti Virus programs.

TobyReads · Yesterday, 08:37 AM

@kovidgoyal

Thanks for your suggestion. I nuked the contents of ".caltrash" and made a specific exclusion for the folder in Windows Defender. I'll check back in a few hours when the problem usually resets and reappears.

TobyReads · Yesterday, 12:55 PM

Thank you, kovidgoyal!

Deleting the content of ".caltrash" in the library folder has solved the problem.

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Yesterday, 04:32 AM	#46
kovidgoyal creator of calibre Posts: 45,659 Karma: 28549046 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Run calibre-debug -g in a command prompt and post the log

Yesterday, 07:26 AM	#49
TobyReads Junior Member Posts: 6 Karma: 10 Join Date: Nov 2025 Location: Denmark Device: None	@JSWolf Yes, the library is located on an internal SATA SSD drive. I have checked and compacted the database several times, but the loading problem persists.

Yesterday, 07:37 AM	#50
kovidgoyal creator of calibre Posts: 45,659 Karma: 28549046 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You can always delete .caltrash if you want. It' used ot store recently deleted books. But that's most likely not a permission problem, instead you have some other software scanning that folder which prevents calibre from accessing it. Typically OneDrive/DropBox/Anti Virus programs.

Yesterday, 08:37 AM	#51
TobyReads Junior Member Posts: 6 Karma: 10 Join Date: Nov 2025 Location: Denmark Device: None	@kovidgoyal Thanks for your suggestion. I nuked the contents of ".caltrash" and made a specific exclusion for the folder in Windows Defender. I'll check back in a few hours when the problem usually resets and reappears.

Yesterday, 12:55 PM	#52
TobyReads Junior Member Posts: 6 Karma: 10 Join Date: Nov 2025 Location: Denmark Device: None	Thank you, kovidgoyal! Deleting the content of ".caltrash" in the library folder has solved the problem.