Metadata download issue

Cassiehthomas · 12-30-2015, 05:17 AM

Hi guys,

Just wondering if anyone knows how to fix the below problem, I am running windows 10 and trying to use calibre portable, also where do I learn how to 'read' the code so I can fix stuff myself in future?

Thanks

calibre, version 2.46.0 (win32, isfrozen: True)
Failed to download metadata: Failed: Download metadata for 1 books

Starting job: Download metadata for 1 books
Job: "Download metadata for 1 books" failed with error:
Traceback (most recent call last):
File "site-packages\calibre\gui2\threaded_jobs.py", line 83, in start_work
File "site-packages\calibre\gui2\metadata\bulk_download.py", line 237, in download
File "site-packages\calibre\utils\ipc\simple_worker.py", line 220, in fork_job
File "site-packages\calibre\utils\ipc\simple_worker.py", line 108, in communicate
WorkerError: Failed to connect to worker process

Called with args: ([35664], u'C:\\Users\\Cassie\\AppData\\Local\\Temp\\calibre _hmv2qc\\5trw3o_metadata_bulk.log', <calibre.db.legacy.LibraryDatabase object at 0x058E78B0>, True, True, None) {u'log': <calibre.utils.logging.GUILog object at 0x0A1D8DB0>, u'abort': <threading._Event object at 0x12391730>, u'notifications': <Queue.Queue instance at 0x0F763B70>}

itimpi · 12-30-2015, 05:23 AM

I would guess that you have security software that is interfering with Calibre's ability to communicate with its child process.

Cassiehthomas · 12-30-2015, 05:35 AM

OMG I just figured that out you are very fast though, Thank you very much, what is the language called please? so I can learn it

itimpi · 12-30-2015, 05:38 AM

Quote:

Originally Posted by Cassiehthomas

OMG I just figured that out you are very fast though, Thank you very much

Quote:

what is the language called please? so I can learn it

Most of Calibre is written using Python.

There is a section in the User Guide on how to set up a Calibre development environment. It is very easy.

Cassiehthomas · 12-30-2015, 05:40 AM

Thank you

eschwartz · 12-30-2015, 10:41 AM

You don't really need to investigate the code though, if you just want to understand errors.

In this case, if you take a look at the error message, it says "Failed to connect to worker process" -- calibre uses worker subprocesses to do various tasks, and this is a well-known sign by now that some antivirus is blocking calibre.
Of course, to know that you'd have to hang out here a lot and see many people have that problem.

theducks · 12-30-2015, 11:21 AM

Heavy handed A/V is the usual for this

You do not need to learn Python (unless you want to).
The bottom line of the error report is a pretty good summary of what balked.

In this case, you started a task that hands it off to worker_process to grind in background while you continue to browse your library.

In this case, the hand-off was interfered with .
Tell you A/V Calibre.exe is a good guy (calibre-parallel.exe is the worker. You may see more than 1 in the Task Manager depending on your CPU specs and Calibre settings)

12-30-2015, 05:17 AM	#1
Cassiehthomas Junior Member Posts: 3 Karma: 10 Join Date: Nov 2015 Device: Ipad mini	Metadata download issue Hi guys, Just wondering if anyone knows how to fix the below problem, I am running windows 10 and trying to use calibre portable, also where do I learn how to 'read' the code so I can fix stuff myself in future? Thanks calibre, version 2.46.0 (win32, isfrozen: True) Failed to download metadata: Failed: Download metadata for 1 books Starting job: Download metadata for 1 books Job: "Download metadata for 1 books" failed with error: Traceback (most recent call last): File "site-packages\calibre\gui2\threaded_jobs.py", line 83, in start_work File "site-packages\calibre\gui2\metadata\bulk_download.py", line 237, in download File "site-packages\calibre\utils\ipc\simple_worker.py", line 220, in fork_job File "site-packages\calibre\utils\ipc\simple_worker.py", line 108, in communicate WorkerError: Failed to connect to worker process Called with args: ([35664], u'C:\\Users\\Cassie\\AppData\\Local\\Temp\\calibre _hmv2qc\\5trw3o_metadata_bulk.log', <calibre.db.legacy.LibraryDatabase object at 0x058E78B0>, True, True, None) {u'log': <calibre.utils.logging.GUILog object at 0x0A1D8DB0>, u'abort': <threading._Event object at 0x12391730>, u'notifications': <Queue.Queue instance at 0x0F763B70>}

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12-30-2015, 05:23 AM	#2
itimpi Wizard Posts: 4,553 Karma: 950151 Join Date: Nov 2008 Device: Sony PRS-950, iphone/ipad (Marvin/iBooks/QuickReader)	I would guess that you have security software that is interfering with Calibre's ability to communicate with its child process.

12-30-2015, 05:35 AM	#3
Cassiehthomas Junior Member Posts: 3 Karma: 10 Join Date: Nov 2015 Device: Ipad mini	OMG I just figured that out you are very fast though, Thank you very much, what is the language called please? so I can learn it

12-30-2015, 05:40 AM	#5
Cassiehthomas Junior Member Posts: 3 Karma: 10 Join Date: Nov 2015 Device: Ipad mini	Thank you

12-30-2015, 10:41 AM	#6
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	You don't really need to investigate the code though, if you just want to understand errors. In this case, if you take a look at the error message, it says "Failed to connect to worker process" -- calibre uses worker subprocesses to do various tasks, and this is a well-known sign by now that some antivirus is blocking calibre. Of course, to know that you'd have to hang out here a lot and see many people have that problem.

12-30-2015, 11:21 AM	#7
theducks Well trained by Cats Posts: 31,057 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Heavy handed A/V is the usual for this You do not need to learn Python (unless you want to). The bottom line of the error report is a pretty good summary of what balked. In this case, you started a task that hands it off to worker_process to grind in background while you continue to browse your library. In this case, the hand-off was interfered with . Tell you A/V Calibre.exe is a good guy (calibre-parallel.exe is the worker. You may see more than 1 in the Task Manager depending on your CPU specs and Calibre settings)