Debugging calibre/plugins

413Michele · 11-24-2023, 10:52 AM

Hello, I've used calibre for a long time now and in the years I've added plenty of books, plug-ins and tweaks to the settings to get an experience that fit my needs.

It's some time now that I'm having two problems with my installation:

Opening books (Epubs) in the viewer is very slow if it's the first time they're opened
Exporting all of calibre's data either hangs indefinitely or ends without a prompt after writing some gigabytes of data

The first problem disappears if I start calibre with the option "--ignore-plugins", so the cause is clear. The second one's origin, however, is unclear and prevents me from switching to a clean calibre installation.

So my question is: how can I debug these two problems? I looked up the manual and tried calibre-debug, but it seems to be limited and I didn't get any useful information, and although I'm tech-savvy I can't really code or anything.

A note: I've had these problems for at least a year, so they are not related to calibre 7

kovidgoyal · 11-24-2023, 11:05 AM

Disable your third party plugins one by one till you find the culprit. As for the second problem, what do you mean ends without a prompt? Once all the data is exported the window closes there is no prompt. What are you expecting?

413Michele · 11-24-2023, 11:16 AM

Quote:

Originally Posted by kovidgoyal

As for the second problem, what do you mean ends without a prompt? Once all the data is exported the window closes there is no prompt. What are you expecting?

That's good then, even though IMO a confirmation dialog is useful when a process is long or has important consequences if something goes wrong. The problem in my case is that from a library of ∼470 MB plus a few custom icons I get 2.8 GB of exported data. That can't be right...

kovidgoyal · 11-24-2023, 11:20 AM

The exported data contains the full text database which is multiple GB.

413Michele · 11-24-2023, 11:29 AM

I hadn't thought about that at all

Well then, this one is now cleared. I'll try to find the culprit for the first one, thank you for the help

BetterRed · 11-24-2023, 01:02 PM

Moderator Notice

Moved out of Development, see this sticky.

BR

413Michele · 11-24-2023, 01:14 PM

Quote:

Originally Posted by BetterRed

Moved out of Development, see this sticky.

BR

Yeah I'm sorry, I started the thread for help with debug but then it was way simpler than I had envisioned

11-24-2023, 10:52 AM	#1
413Michele Enthusiast Posts: 47 Karma: 10 Join Date: Jan 2021 Location: Italy Device: Kobo Libra 2, Kindle Paperwhite (1st gen)	Debugging calibre/plugins Hello, I've used calibre for a long time now and in the years I've added plenty of books, plug-ins and tweaks to the settings to get an experience that fit my needs. It's some time now that I'm having two problems with my installation: Opening books (Epubs) in the viewer is very slow if it's the first time they're opened Exporting all of calibre's data either hangs indefinitely or ends without a prompt after writing some gigabytes of data The first problem disappears if I start calibre with the option "--ignore-plugins", so the cause is clear. The second one's origin, however, is unclear and prevents me from switching to a clean calibre installation. So my question is: how can I debug these two problems? I looked up the manual and tried calibre-debug, but it seems to be limited and I didn't get any useful information, and although I'm tech-savvy I can't really code or anything. A note: I've had these problems for at least a year, so they are not related to calibre 7

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11-24-2023, 11:05 AM	#2
kovidgoyal creator of calibre Posts: 43,933 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Disable your third party plugins one by one till you find the culprit. As for the second problem, what do you mean ends without a prompt? Once all the data is exported the window closes there is no prompt. What are you expecting?

11-24-2023, 11:20 AM	#4
kovidgoyal creator of calibre Posts: 43,933 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The exported data contains the full text database which is multiple GB.

11-24-2023, 11:29 AM	#5
413Michele Enthusiast Posts: 47 Karma: 10 Join Date: Jan 2021 Location: Italy Device: Kobo Libra 2, Kindle Paperwhite (1st gen)	I hadn't thought about that at all Well then, this one is now cleared. I'll try to find the culprit for the first one, thank you for the help

11-24-2023, 01:02 PM	#6
BetterRed null operator (he/him) Posts: 20,629 Karma: 26960534 Join Date: Mar 2012 Location: Sydney Australia Device: none	Moderator Notice Moved out of Development, see this sticky. BR