bug#49106: closed (slow load for cups /admin page)

[GNU bug Tracking System]

Your message dated Thu, 24 Jun 2021 04:18:45 +0200
with message-id <87lf70xawq.fsf@nckx>
and subject line Re: CUPS :631/admin interface freezes
has caused the debbugs.gnu.org bug report #42068,
regarding slow load for cups /admin page
to be marked as done.

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42068: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=42068
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--- Begin Message --- Subject: slow load for cups /admin page Date: Fri, 18 Jun 2021 16:43:10 -0800

Hi, ever since I have started using Guix a few years ago, I have always found that the cups page at http://127.0.0.1:631/admin load very slowly, with nothing appearing on the Web browser page for something like two minutes. The home page (http://127.0.01:631) loads very quickly, and also other pages you select after you get to the admin page (e.g., modifying a printer) load quickly. I have had this problem across multiple Guix computers using different printers. I am wondering if all CUPS installations in the world have this problem, which seems unlikely, or if it is something specific to the Guix service configuration.

This is the cups service entry for my system:

    (service cups-service-type

     (cups-configuration

      (web-interface? #t)

      (log-level 'debug)

      (access-log-level 'all)

      (extensions

       (list hplip-minimal cups-filters))))

My system information:

OS: Guix System 9703a51048fbc1d322595d676ff0d63b1eb89304 x86_64 

Host: OptiPlex 9020 00 

Kernel: 5.12.8-gnu 

Uptime: 1 day, 1 hour, 15 mins 

Packages: 93 (guix-system), 109 (guix-user) 

Shell: bash 5.0.16 

Resolution: 1920x1080 

DE: GNOME 

Theme: Adwaita [GTK2/3] 

Icons: Adwaita [GTK2/3] 

Terminal: kitty 

CPU: Intel i5-4570 (4) @ 3.600GHz 

GPU: Intel HD Graphics 

GPU: AMD ATI Radeon HD 8490 / R5 235X OEM 

Memory: 3399MiB / 7869MiB

Thank you,

Christopher Howard

https://librehacker.com

--- End Message ---

--- Begin Message --- Subject: Re: CUPS :631/admin interface freezes Date: Thu, 24 Jun 2021 04:18:45 +0200 I've pushed some patches I've been using since ‘forever’ to core-updates. They simply remove the entire right-hand ‘Server’ form, and short-circuit the logic behind it that caused the long delays.

An older work-around I tried was to simply link to the store cupsd.conf in /etc/cups. This solves the immediate problem, and even allows viewing (not editing) a few settings in said form. It's an option for those who can't wait for core-updates to be merged (don't forget to delete it next year… :-).

However, doing so merely hides the fact that this code is broken with -c FILE by effectively circumventing the option in a very sneaky way. A step back, not forward.

Kind regards,

T G-R

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