[cups] What is the preferd method to connect cups 1.7.5 to cups 1.3.9

[Pförtsch, Franz]

Hello Johannes,

Thanks a lot for your answer.

On wednesday I had the problem between my new central sles12 sp1 cups 1.7.5 printserver to a sles11 sp4 cups 1.3.9 in the location.

The central-server transfers the spool jobs from <local-queue> to the remote cups via the device-uri lpd://<remote-server>/<remote-queue>.
A lot of spooljobs where transfert. It was working for hours, suddenly the spooljobs get stucked in the <local-queue>.
The status of the queue was processing and the spooljobs showed "Data file sent successfully."

After this I tried several device uri's but nothing helped.

On the end I created a new queue to park the spooljobs, because I do not want to loose data. we are in JIT-production.
I moved the jobs to this queue, but this also did not help.

In the end I removed the <local-queue> and created this new. When I started one of the spooljobs the cupd crashed with segfault without a coredump :-(

Today I had the same problem with two Laserprinter (Kyocera FS-4000DN/Canon ADF C53xx).
I solved this situation by modifiying the printer which startet the queue/canceling the printjob)

There seems to be a syncing problem between printjob and printqueue.

But I could no reproduce the situation by my self :-(


I opened a call at our supporter. The Service Request is   # 10994025138

But now again! What is the preferd connection between two cups-daemons?

How should I couple two cups-servers?
Is ipp better then lpd?

A lot of regards
Franz Pförtsch


-----Original Message-----
From: cups-bounces at cups.org [mailto:cups-bounces at cups.org] On Behalf Of Johannes Meixner
Sent: Friday, February 26, 2016 4:31 PM
To: The CUPS user discussion list.
Subject: Re: [cups] What is the preferd method to connect cups 1.7.5 to cups 1.3.9


Hello,

On Feb 24 18:05 Pförtsch, Franz wrote:
> I have a large installations of cups 1.3.9 from sles 11.
>
> I am on the transmission to sles 12 with cups 1.7.5.
>
> What is the preferd method to connect these versions.
> I have trouble with lpd and ipp.
>
> My device uri's are like this:
>
> http://<servername>:631/printers/<queue>?version=1.1&waitjobs=false&sn
> mp=false
> lpd://<servername>/<queue>?snmp=false
>
> any help available?

I am afraid, your descripition is too short for me to understand what exact trouble you have and what exactly you mean with "connect these versions".

Does your device uris mean you use them on one CUPS server to sent print jobs via such device uris to another CUPS server (i.e. do you forward print jobs from one CUPS server via such device uris to another CUPS server)?

In general regarding how to report a printing issue see https://en.opensuse.org/SDB:How_to_Report_a_Printing_Issue

All what I could tell regarding the incompatible changes between CUPS <= 1.5.4 and CUPS >= 1.6 at the time when SLES12 was made is mentioned in the SLES12 release notes:
https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/

For a bit more information regarding submitting print jobs from CUPS >= 1.6 to CUPS <= 1.5.4 and vice versa see the

   duplex not working ("Transport endpoint is not connected")

mail thread on this list from Jan 2016, in particular see

http://cups.org/pipermail/cups/2016-January/027434.html


Kind Regards
Johannes Meixner
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