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Old 06-26-2015, 02:47 PM   #49
cybmole
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Join Date: Sep 2010
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Quote:
Originally Posted by LadyKate View Post
Isn't there a problem with the metadata.db backing up?
if calibre is idle, then there shoudl be no issue synching as the file metadata.db is not being accessed or altered during the sync.

AFAIK, calibre does not do any automated routine maintenance, so as long as there are no jobs running when you are syncing ( which should only take a couple of minutes ) all should be OK ( but see my caveat below) . all or almost all of the library can be rebuilt by re-importing all the e books + covers +their OPF records, if only the .db file is bad ?


I must admit that i have never lost an entire library yet, so I have not stress tested the restore process. ( but I have retrieved individual books and searched within my dropbox backup via the calibre cloud app & that has always worked OK )
I would never sync if calibre was in the middle of some add book or convert book operation, but it's no strain to wt for one of those to complete.
I sync only manually, it's is not on any auto-schedule, and every time I re-sync , metadata.db should get re-synced anyways, so unless I mess up the one that I actually then need for a restore...

but feel free to completely close calibre to be extra safe, I think I said that before.

PS >harryt "As discussed earlier in the thread, backing up "metadata.db" while Calibre is running".... do you class idling ( i.e. no active jobs & no use of GUI ) as running ? ). If sync while idling & minimised to system tray is unsafe, I'd like to understand why that is please.

Last edited by cybmole; 06-26-2015 at 02:54 PM.
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