MobileRead Forums - View Single Post - Synology Drive not detecting changes in Calibre Library

pk1966 · 12-20-2022, 12:44 PM

What I read was that running multiple instances of calibre accessing the same library directly is not good (which is why I don't so that and am trying to use a one-way sync back to the PC), but I also read posts that said running calibre across a network share (say from a PC client to a NAS share) was also prone to difficulties. Is this not true?

Either way, I don't leave my PC running 24x7 whereas the NAS is running all the time. I only fire up my PC when I need it and wanted to just fire up a PC version of calibre using a replica copy of the library to enable quick syncing of books to my kindle.

Books are added either automatically via Readarr (which uses the calibre API) or manually by storing the book in a downloads share on the NAS and adding a book through the Calibre GUI using Remote Desktop. The version of the DB on the NAS is always the master and never updated by anything else.

Web access works fine via both Calibre Content Server and Bicbucstrrim running on the NAS. New books appear immediately in the content server/Bicbucstriim.

The NAS is basically a Linux server (with some "Synology-isms") so don't understand why standard functions don't appear to work.

Your suggestion of rsync made me think and, as a quick test, did a local rsync of the calibre library from one NAS folder to another and it does immediately pick up new content - suggesting the way Synology Drive and rsync spot changes is different. I may raise a ticket with Synology to see what they say.

12-20-2022, 12:44 PM	#6
pk1966 Member Posts: 15 Karma: 10 Join Date: Jan 2019 Device: Kindle	What I read was that running multiple instances of calibre accessing the same library directly is not good (which is why I don't so that and am trying to use a one-way sync back to the PC), but I also read posts that said running calibre across a network share (say from a PC client to a NAS share) was also prone to difficulties. Is this not true? Either way, I don't leave my PC running 24x7 whereas the NAS is running all the time. I only fire up my PC when I need it and wanted to just fire up a PC version of calibre using a replica copy of the library to enable quick syncing of books to my kindle. Books are added either automatically via Readarr (which uses the calibre API) or manually by storing the book in a downloads share on the NAS and adding a book through the Calibre GUI using Remote Desktop. The version of the DB on the NAS is always the master and never updated by anything else. Web access works fine via both Calibre Content Server and Bicbucstrrim running on the NAS. New books appear immediately in the content server/Bicbucstriim. The NAS is basically a Linux server (with some "Synology-isms") so don't understand why standard functions don't appear to work. Your suggestion of rsync made me think and, as a quick test, did a local rsync of the calibre library from one NAS folder to another and it does immediately pick up new content - suggesting the way Synology Drive and rsync spot changes is different. I may raise a ticket with Synology to see what they say. Last edited by pk1966; 12-20-2022 at 12:46 PM.