Impossible to add any book in the library

Ron53 · 08-17-2020, 08:01 AM

It is - after an brandnew installation on a brand new PC - still absolute not possible to add a book into the calibre database.
I have tried several re installs but nothing helps

See the error message:
calibre, version 4.22.0
FOUT: Fouten bij toevoegen: Kon geen enkel boek toevoegen, klik op 'Toon details' voor meer informatie

----------------------------------------------------------------------
Toevoegen van boek mislukt:Lucinda Riley_De Zeven zussen 06_2019 - Zon
S:\35 eBooks tijdelijk\Zon - Lucinda Riley.epub
Met fout:
Traceback (most recent call last):
File "site-packages\calibre\gui2\add.py", line 414, in add_book
File "site-packages\calibre\db\legacy.py", line 225, in create_book_entry
File "site-packages\calibre\db\cache.py", line 62, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 1621, in create_book_entry
File "site-packages\calibre\db\cache.py", line 1334, in set_metadata
File "site-packages\calibre\db\cache.py", line 1158, in update_path
File "site-packages\calibre\db\backend.py", line 1606, in update_path
File "site-packages\calibre\db\tables.py", line 137, in set_path
File "site-packages\calibre\db\backend.py", line 874, in execute
File "c:\t\t\apsw-47cp24d7\src\cursor.c", line 236, in resetcursor
CantOpenError: CantOpenError: unable to open database file

My drive S: is an drive located on a Synology NAS. All my other programs works with maps on this drive. My Synology drive S: will make an backup every night to another Synology NAS server, placed in a physical other place.

The Calibre software is standard installed on the C: drive on one of my computers in the home network.

As mentioned earlier, I tried on several PC's to install the Calibre software on C: and to create an Calibre database on drive S: without any success.

PS: I am a Dutch user of the Calibre software

kovidgoyal · 08-17-2020, 08:24 AM

https://manual.calibre-ebook.com/faq...rked-drive-nas

Ron53 · 08-22-2020, 01:32 PM

It took me some time, but I have tried to install the database and Calibre on a single stand alone PC and Yes! It worked well since that single install.

It is a bit confusing that a drive in Windows as a part of a NAS cannot be used as location for de Calibre database. Strange also, that I have used Calibre a long time in that manner without any problems. I think there has been a change in Windows or in Synology DSM, so the problem occured since?

Anyway, I now know the reason why Calibre didn't worked.

Thanks for helping!

DNSB · 08-22-2020, 11:32 PM

Quote:

Originally Posted by Ron53

It took me some time, but I have tried to install the database and Calibre on a single stand alone PC and Yes! It worked well since that single install.

It is a bit confusing that a drive in Windows as a part of a NAS cannot be used as location for de Calibre database. Strange also, that I have used Calibre a long time in that manner without any problems. I think there has been a change in Windows or in Synology DSM, so the problem occured since?

Anyway, I now know the reason why Calibre didn't worked.

Thanks for helping!

Welcome what seems to be the most common complaint from people who try using calibre and the database/library stored a NAS/SAN/cloud drive: "But it worked for years...".

theducks · 08-23-2020, 12:30 PM

What many folk fail to realize is it is NOT an always: 'Does not Work', but it is FRAGILE.

Timing, Race Condition, (and the big Not Supported) Multi-(in)use interaction.
Calibre performs a Sequence of actions every time you make or update an entry. It expects the action to have completed when it move on to the next step. That may not be true with a buffered operation (network/cache) in use.
Toss in Anti-whatever checks and you get more delays (and I DO NOT endorse disabling Networked file checks, only a local disk Library..if needed)

08-17-2020, 08:01 AM	#1
Ron53 Junior Member Posts: 3 Karma: 10 Join Date: Jul 2020 Device: Kobo	Impossible to add any book in the library It is - after an brandnew installation on a brand new PC - still absolute not possible to add a book into the calibre database. I have tried several re installs but nothing helps See the error message: calibre, version 4.22.0 FOUT: Fouten bij toevoegen: Kon geen enkel boek toevoegen, klik op 'Toon details' voor meer informatie ---------------------------------------------------------------------- Toevoegen van boek mislukt:Lucinda Riley_De Zeven zussen 06_2019 - Zon S:\35 eBooks tijdelijk\Zon - Lucinda Riley.epub Met fout: Traceback (most recent call last): File "site-packages\calibre\gui2\add.py", line 414, in add_book File "site-packages\calibre\db\legacy.py", line 225, in create_book_entry File "site-packages\calibre\db\cache.py", line 62, in call_func_with_lock File "site-packages\calibre\db\cache.py", line 1621, in create_book_entry File "site-packages\calibre\db\cache.py", line 1334, in set_metadata File "site-packages\calibre\db\cache.py", line 1158, in update_path File "site-packages\calibre\db\backend.py", line 1606, in update_path File "site-packages\calibre\db\tables.py", line 137, in set_path File "site-packages\calibre\db\backend.py", line 874, in execute File "c:\t\t\apsw-47cp24d7\src\cursor.c", line 236, in resetcursor CantOpenError: CantOpenError: unable to open database file My drive S: is an drive located on a Synology NAS. All my other programs works with maps on this drive. My Synology drive S: will make an backup every night to another Synology NAS server, placed in a physical other place. The Calibre software is standard installed on the C: drive on one of my computers in the home network. As mentioned earlier, I tried on several PC's to install the Calibre software on C: and to create an Calibre database on drive S: without any success. PS: I am a Dutch user of the Calibre software

08-22-2020, 01:32 PM	#3
Ron53 Junior Member Posts: 3 Karma: 10 Join Date: Jul 2020 Device: Kobo	Problem Solved It took me some time, but I have tried to install the database and Calibre on a single stand alone PC and Yes! It worked well since that single install. It is a bit confusing that a drive in Windows as a part of a NAS cannot be used as location for de Calibre database. Strange also, that I have used Calibre a long time in that manner without any problems. I think there has been a change in Windows or in Synology DSM, so the problem occured since? Anyway, I now know the reason why Calibre didn't worked. Thanks for helping!

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08-17-2020, 08:24 AM	#2
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	https://manual.calibre-ebook.com/faq...rked-drive-nas

08-23-2020, 12:30 PM	#5
theducks Well trained by Cats Posts: 31,047 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	What many folk fail to realize is it is NOT an always: 'Does not Work', but it is FRAGILE. Timing, Race Condition, (and the big Not Supported) Multi-(in)use interaction. Calibre performs a Sequence of actions every time you make or update an entry. It expects the action to have completed when it move on to the next step. That may not be true with a buffered operation (network/cache) in use. Toss in Anti-whatever checks and you get more delays (and I DO NOT endorse disabling Networked file checks, only a local disk Library..if needed)

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