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Old 09-27-2023, 04:58 AM   #1
kacir
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Speed of automatic backup of database changes into metadata.opf files
Calibre has a very nice feature of saving ebook metadata it has in database into individual metadata.opf files. In order not to overwhelm the disk or system or whatever, those writes are throttled back to about 26 files per minute. You can view the progress info in "Calibre Library" menu, under "maintenance" and "Library metadata backup status". You can even tell Calibre to refresh all metadata.opf files from this dialog by choosing "Queue all books for backup".

Is there any way I can tell Calibre to speed up this process? Is there any setting, tweak, plugin, hack or trick to tell Calibre "Hey, I am going to sleep now and you have the computer (with nice new SSD) all to yourself, go full tilt"?
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Old 09-27-2023, 05:06 AM   #2
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You can use the calibredb command to do this


calibredb backup_metadata

it is not speed restricted. Quit calibre before doing it.
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Old 09-27-2023, 11:15 AM   #3
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Originally Posted by kovidgoyal View Post
You can use the calibredb command to do this


calibredb backup_metadata

it is not speed restricted. Quit calibre before doing it.
Thank you very much. This is exactly what I was looking for. And the process is blazing fast.
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