Calibre freezes when decision is needed.

[Scorcerer]

Hello everyone!
Topic may be kinda ambiguous, but it's really simple:
When I'm trying to download metadata (using ctrl+d) for many books, i often encounter one which has more than 1 possibilities in search results (found that using manual download from edit metadata window). And then, sometimes the process freezes - it's not like calibre stops responding, i can abort the operation, no problem. But it won't decide which result should it pick, so when i check like 1000 books to get metadata overnight, it'll freeze on 5th-7th and for the rest of time will do totally nothing. Is there any way around that issue? Like, maybe, hard timeout - if no metadata had been picked for over two minutes calibre will skip that book and head to next one?

[kovidgoyal]

Hmm I doubt this has anything to do with multiple results, in such a case calibre just picks the first one. Is there anything else in common with these books. Post the title and author of a few of them.

[timlegge]

Hi

I also seem to be getting freezing when editing the metadata. I am running in debug mode but no errors appear. It simply stops responding.

When I run top I see:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
27087 tl 20 0 266m 75m 35m R 98 8.0 2:48.02 python

I am looking at an strace but nothing has jumped out at me yet.

Tim

[kovidgoyal]

you're getting the freezing when just editing metadata, not downloading matches?

[timlegge]

Yes, in my case it is related to editing the metadata. However, some books seem to work while others do not.

I left Calibre running last night with it frozen expecting it to finish what it was doing and display the edit metadata dialog but this morning it was still using 100% CPU and still frozen.

Dragons of the Dwarven Depths by Margaret Weis & Tracy Hickman is one that does not seem to work.

Tim

[DoctorOhh]

Originally Posted by timlegge

I left Calibre running last night with it frozen expecting it to finish what it was doing and display the edit metadata dialog but this morning it was still using 100% CPU and still frozen.

It sounds like you're saying all you were doing was opening the edit metadata window for a single book and it froze, is this correct? Which BTW is completely different from the OPs issue.

[timlegge]

Originally Posted by dwanthny

It sounds like you're saying all you were doing was opening the edit metadata window for a single book and it froze, is this correct? Which BTW is completely different from the OPs issue.

Yes, I really should be more clear. I expect users to be clear when they report bugs to me and then I babble incoherently when I report something.

To reproduce:

1) Start Calibre
2) Right Click a book record
3) Select Edit Metadata (from memory...)
4) Select Individual (also from memory the actual title is something similar)
5) Wait
6) Eventually kill Calibre

I cases where it works I hear the drive getting accessed almost immediately. In cases where it does not work I don't hear anything.

When I am able to open the metadata window I can use next to open the next record of a book that works but it freezes when I encounter one that will not open individually.

I will try to insert some debug code tonight if I have some time. This is on Ubuntu 10.04...

Tim

[kovidgoyal]

Stick a few print statements into the __init__ method of MetadataSingleDialog to see where it is freezing.

Also the code that launches the dialog (in case it si freezing before __init__) is in actions.edit_metadata in the edit_metadata method.