[cups.general] CUPS and OpenBSD

[Jerome Alet]

On Tue, Jun 12, 2007 at 01:38:18PM -0400, Bambero wrote:
> D [12/Jun/2007:19:24:11 +0200] LoadDevices: Added device "ipp"...
> D [12/Jun/2007:19:24:11 +0200] LoadDevices: Added device "lpd"...
> W [12/Jun/2007:19:24:41 +0200] LoadDevices: Backend did not respond within 30 seconds!
> D [12/Jun/2007:19:24:43 +0200] LoadDevices: Added device "socket"...
> 
> Backend did not respond within 30 seconds! -> What does it mean ?
> 
> I can see no devices when trying to add printer using web gui.

This means that one the backends available in /usr/lib/cups/backend/
took too long to answer, and so it was ignored by CUPS.

This unfortunately can happen when your machine is a bit slow and 
you've got one or several backend wrappers in /usr/lib/cups/backend 
which try to autodetect the other available backends : they launch 
every other backend in turn to construct URIs to ease the setup of 
new printers in CUPS' web interface (to my knowledge you may 
encounter this problem with at least PyKota, Tea4CUPS and Jasmine). 
Sometimes the 30 second delay is too short, and a message like the 
one above is reported, and the backend (or backend wrapper) ignored. 

hth

Jerome Alet