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Old 03-22-2026, 04:49 PM   #1
gadget.felugyelo
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Question Download bulk metadata job hangs
Downloading bulk metadata - even for one book - keeps hanging. I am able to download metadata when I'm editing the metadata.

I restarted calibre in debug mode, but there was no printout at all during bulk download. I already waited over 10 minutes to download metadata for one book.

I also reduced the metadata sources to only one (I tried Google and Goodreads as standalone source) - but it worked as mentioned above.


Click image for larger version Name: 1_bulk_metadata_download.png Views: 19 Size: 255.3 KB ID: 221990
Starting Bulk Download job

Click image for larger version Name: 2_bulk_metadata_download_running.png Views: 15 Size: 240.3 KB ID: 221991
Job is "Waiting", but I could wait for an hour and wouldn't happen anything.

Click image for larger version Name: 3_edit_and_download_metadata.png Views: 13 Size: 331.5 KB ID: 221992
It works inside Edit Metadata.


I'm using Calibre 9.5.

I tried:
- restart calibre
- restart Windows
and just to be sure (but since it's work for inside Edit Metadata, shouldn't change the behaviour)
- switch from WIFI to Ethernet
- use VPN

Any ideas? Thanks!
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Old 03-22-2026, 10:42 PM   #2
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Try rebooting in safe mode.
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Old 03-23-2026, 07:38 PM   #3
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Overall, I don't recommend using Bulk Metadata Download. Too many sites will ban your IP for a variable period since a BMD tends to look much like a denial of service attack.
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Old 03-23-2026, 08:54 PM   #4
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Quote:
Originally Posted by gadget.felugyelo View Post
Downloading bulk metadata - even for one book - keeps hanging. I am able to download metadata when I'm editing the metadata.

I restarted calibre in debug mode, but there was no printout at all during bulk download. I already waited over 10 minutes to download metadata for one book.

I also reduced the metadata sources to only one (I tried Google and Goodreads as standalone source) - but it worked as mentioned above.


Attachment 221990
Starting Bulk Download job

Attachment 221991
Job is "Waiting", but I could wait for an hour and wouldn't happen anything.

Attachment 221992
It works inside Edit Metadata.


I'm using Calibre 9.5.

I tried:
- restart calibre
- restart Windows
and just to be sure (but since it's work for inside Edit Metadata, shouldn't change the behaviour)
- switch from WIFI to Ethernet
- use VPN

Any ideas? Thanks!
Switching from WiFi to Ethernet may change nothing as it is the IP of your router, not the PC's ports
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Old 03-24-2026, 03:55 AM   #5
gadget.felugyelo
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Quote:
Originally Posted by kovidgoyal View Post
Try rebooting in safe mode.
It helped partially, I can download metadata for around 50 books. Previously I was able to download more than that. Also if there was any kind of access problem, I received an error.

My "biggest" problem is not that something goes wrong, but that I don't got any error message: whether is it because the website(s) refuse my query or anything else.

After such an error, I can't use the bulk download until restart.

wishful thinking: it would be also nice if 80% is downloaded, then the result of that 80% could be processed.

Click image for larger version Name: 4_download_metadata.png Views: 2 Size: 18.6 KB ID: 222020
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Old 03-24-2026, 03:57 AM   #6
gadget.felugyelo
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Quote:
Originally Posted by DNSB View Post
Overall, I don't recommend using Bulk Metadata Download. Too many sites will ban your IP for a variable period since a BMD tends to look much like a denial of service attack.
I considered this too, hence I also tried to use it with VPN. It also failed to download metadata for only one book, where it worked from inside the metadata editor.
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Old 03-24-2026, 04:00 AM   #7
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Quote:
Originally Posted by theducks View Post
Switching from WiFi to Ethernet may change nothing as it is the IP of your router, not the PC's ports
It provides stability of the network connection for the PC, hence I provided it as an additional information. But I also used VPN to change my IP to the outside word.
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Old 03-24-2026, 04:05 AM   #8
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Quote:
Originally Posted by DNSB View Post
Overall, I don't recommend using Bulk Metadata Download. Too many sites will ban your IP for a variable period since a BMD tends to look much like a denial of service attack.

That makes sense, hence I tried VPN too. I also waited before I posted here. It also didn't worked to download metadata for only one book with BMD, but it worked from inside the metadata editor.
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Old 03-24-2026, 08:56 AM   #9
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Quote:
Originally Posted by gadget.felugyelo View Post
It helped partially, I can download metadata for around 50 books. Previously I was able to download more than that. Also if there was any kind of access problem, I received an error.
That indicates you have some software on your machine blocking the calibre worker process used to download metadata. Typical culprits are antivirus/security software.
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Old 03-24-2026, 09:05 AM   #10
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It's not worth it to download metadata as there is always something that needs to be fixed manually. So you may as well just deal with the metadata manually.

What is wrong with your eBook metadata that you feel the need to download it? Most of the time, I just need to download a proper description and maybe find the series name.
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Old 03-24-2026, 12:11 PM   #11
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Quote:
Originally Posted by gadget.felugyelo View Post
It provides stability of the network connection for the PC, hence I provided it as an additional information. But I also used VPN to change my IP to the outside word.
VERY TRUE. I am a serious fan for wired on everything that CAN accept the connection.
When I made the comment, I was thinking about IP blocking
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