03-20-2012, 03:18 PM | #1 |
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trouble when converting many epubs to epubs
I tried to convert 11 epubs again to epubs. Calibre started converting and finished 10 books conversion. The conversion of the 11th started, but in the progress bar of the job I got the message that no information about progress was available and calibre didn't finish. I had to stop this job und start it again. Then calibre finished very fast. Does calibre have a problem converting many books simultanously?
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03-20-2012, 03:47 PM | #2 | |
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Quote:
What OS? What version NUMBER of calibre? What is the value in Preferences: Miscellaneous: 'Maximum Conversions..." ? |
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03-20-2012, 03:54 PM | #3 |
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OS: Linux (Ubuntu 10.04)
Calibre: 0.8.43 Maximum Conversions: 3 The maximum number is limited to the number of CPU cores, that means 4 on my system |
03-20-2012, 04:09 PM | #4 |
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Converting ePub > ePub is a really bad idea. If you have an issue with these ePub, use Sigil to fix them the tweak program to go in and make the changes.
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03-20-2012, 04:14 PM | #5 |
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I have the problem that calibre's viewer doesn't show some epubs former versions of calibre were able to show. With these epubs I now only get an empty white screen in the previewer. After converting them using epub to epub the viewer is again able to show them.
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03-20-2012, 04:17 PM | #6 | |
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Quote:
BTW my Ubuntu Natty rig (1G RAM P4-3.2 Hyper threaded) has been taking OMG time (1000+ on some, others just minutes) on EPUB to Mobi. (and something started Calibre using Swap, which almost never gets used when Only Calibre is running.) I have seen Calibre 8.43 leave behind, and running, Killed (in) Calibre tasks. I also had a spontaneous reboot happen yesterday, while 2 long running converts were running. The KVM was on the Window system when it happened) And I later found a Zombie Calibre-Parrallel As soon as this set finishes, I will run Memtest86 |
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03-20-2012, 05:51 PM | #7 | |
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Quote:
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03-20-2012, 05:52 PM | #8 |
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03-20-2012, 06:02 PM | #9 |
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Hmm I had a BSOD on a laptop I bought a couple of weeks ago (well 24+) so I sent it back. Replacement is fine I think and never had one on my desktop.
Zombies seems scarier though and in a weird way almost desireable to those of us who know no better. Helen |
03-20-2012, 07:55 PM | #10 |
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When testing an ePub, use ADE. Don't use any other program to display it. If it works, then it's the fault of the other program.
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03-20-2012, 10:44 PM | #11 |
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This is a longstanding issue with IPC on some linux systems that I have never been able to reprduce and no one else has been able to track down. Basically the last job in a large batch of jobs hangs endlessly.
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03-20-2012, 11:34 PM | #12 |
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Orphan
Here is a screen shot.
I killed a 1900 Minute convert (the last running) in about 10) Closed Calibre and the CPU loag did not fall Screen capture and Files open for the orphaned Calibre Process |
03-21-2012, 12:10 AM | #13 |
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The only way to debug this is to run calibre from source and add debugging code to the IPC sections of calibre.
As a first step if you can consistently reproduce it, run calibre in a terminal and see if any tracebacks are printed. Then add some print statements to main() inipc/worker.py and see what's happening. |
03-21-2012, 01:57 AM | #14 |
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disagree, sometimes it can take a very long time to manually locate an obscure glitch via sigil, whereas epub to epub is often a very fast quick fix. it is very good e.g. at regularising margins & stripping irrelevancies from css. it is also the only practical way to quickly break a single large xhtml into chapter sized chunks
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