I'm not sure what is going on in this particular instance, but taking the same steps on my production system results in a PDF containing the expected cards and nearly zero CPU usage. Unless someone else can confirm the problem, I would look at something local. Perhaps a Koha update did not apply well or some such, resulting in a script not being updated. On Sun, Apr 1, 2018 at 5:22 PM, Sven Halm <sven.halm@shalm.de> wrote:

I've always gone the following way:

Tools/Patron lists/Actions/Print cartridge cards

Then I choose the template and layout and that's it. As soon as I click on the pdf-link, the CPU goes up.

I'll attach some screenshots to the e-mail.

Many greetings Sven

------------------------------ *Von: *"Christopher Nighswonger" <chris.nighswonger@gmail.com> *An: *"Sven Halm" <sven.halm@shalm.de> *Gesendet: *Sonntag, 1. April 2018 22:35:51 *Betreff: *Re: [Koha-devel] Printing patron cards results in 100% cpu

It appears that no batch is passed to the script. How are you accessing it?

Chris

On Sun, Apr 1, 2018, 3:43 PM Sven Halm <sven.halm@shalm.de> wrote:

...

Hello and happy Easter!

I have a problem with the patronage card printing. I also described the problem in Bug 20077. I got a tip from Katrin to try the mailing list.

When I try to print the patron cards, the /usr/share/koha/intranet/cgi- bin/patroncards/create-pdf.pl does not finish and runs with 100% CPU load.

In plack-error.log I find the following lines: Use of uninitialized value $batch_id in concatenation (.) or string at /usr/share/koha/intranet/cgi-bin/patroncards/create-pdf.pl line 68. Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256. Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 288. Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256. Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 288. Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256.

The problem first appeared in February 2018 after I started the Ubuntu updates. Unfortunately I don't remember what has been updated.

Current system environment (no changes made to koha!): OS: Ubuntu 17.10 Koha-Version: 17.11.04.000 OS Version ('uname -a'): Linux koha 4.13.0-37-generic #42-Ubuntu SMP Wed Mar 7 14:13:23 UTC 2018 x86_64 Perl Interpreter: /usr/bin/perl Perl-Version: 5.026000 Perl @INC: /usr/share/koha/lib /usr/share/koha/installer /usr/share/koha/lib/installer /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.0 /usr/local/share/perl/5.26.0 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base MySQL-Version: mysql Ver 15.1 Distrib 10.1.30-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2 Apache-Version: Server version: Apache/2.4.27 (Ubuntu)

Unfortunately I am not able to print patron cards at the moment. It would be great if there was a solution for this soon.

Many greetings Sven

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