CentOS - Dec 2008 - Unable to connect to printer; will retry in 30 seconds...: Connection timed out

Hi ALL,

I recently withed from CentOS 3 X  server to CentOS 4.5. It works fine
other than printers.

there are many printers connected to it. We have configured the commnad

printconf

queue type is Networked UNIX (LPD)


Some times, we will be able to print , But, some times, We will NOT be
able to print.

We can ping its ip address. Even, when we can't print, We can ping its
ip address.

When we check logs , we see something like this.

[Job 888] Unable to connect to printer; will retry in 30 seconds...:
Connection timed out


Then, What we do is , We go to application, system setting, printing

and when we get the window, We click apply button,
Then, again, We will be able to print.

Could u pls let me know why?

But, When We used CentOS 3X, it worked fine. No problem at all.

here are rpms installed on  CentOS 3X

[root at lwlsvr_old root]# rpm -qa |grep cups
cups-1.1.17-13.3.32
cups-libs-1.1.17-13.3.32

[root at lwlsvr_old root]# rpm -qa |grep samba
redhat-config-samba-1.0.16-5
samba-common-3.0.9-1.3E.5
samba-3.0.9-1.3E.5
samba-swat-3.0.9-1.3E.5
samba-client-3.0.9-1.3E.5



But, on CentOS 4.5 , We get issues.

here are rpms installed on  CentOS 4.5

[root at lwlsvr ~]# rpm -qa |grep cups
hal-cups-utils-0.5.2-8
libgnomecups-0.1.12-5
cups-1.1.22-0.rc1.9.20
cups-libs-1.1.22-0.rc1.9.20

[root at lwlsvr ~]# rpm -qa |grep samba
system-config-samba-1.2.21-1.el4.1
samba-common-3.0.10-1.4E.11
samba-3.0.10-1.4E.11
samba-client-3.0.10-1.4E.11



Hope to hear form you.



-- 
Thank you
Indunil Jayasooriya

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Indunil Jayasooriya
> Sent: Thursday, December 18, 2008 2:42 AM
> To: CentOS mailing list
> Subject: [CentOS] Unable to connect to printer;will retry in 
> 30 seconds...: Connection timed out
> 
> Hi ALL,
> 
> I recently withed from CentOS 3 X  server to CentOS 4.5. It works fine
> other than printers.
> 
> there are many printers connected to it. We have configured 
> the commnad
> 
> printconf
> 
> queue type is Networked UNIX (LPD)
> 
> 
> Some times, we will be able to print , But, some times, We will NOT be
> able to print.
> 
> We can ping its ip address. Even, when we can't print, We can ping its
> ip address.
> 
> When we check logs , we see something like this.
> 
> [Job 888] Unable to connect to printer; will retry in 30 seconds...:
> Connection timed out
> 
> 
> Then, What we do is , We go to application, system setting, printing
> 
> and when we get the window, We click apply button,
> Then, again, We will be able to print.
> 
> Could u pls let me know why?
> 
> But, When We used CentOS 3X, it worked fine. No problem at all.
> 
> here are rpms installed on  CentOS 3X
> 
> [root at lwlsvr_old root]# rpm -qa |grep cups
> cups-1.1.17-13.3.32
> cups-libs-1.1.17-13.3.32
> 
> [root at lwlsvr_old root]# rpm -qa |grep samba
> redhat-config-samba-1.0.16-5
> samba-common-3.0.9-1.3E.5
> samba-3.0.9-1.3E.5
> samba-swat-3.0.9-1.3E.5
> samba-client-3.0.9-1.3E.5
> 
> 
> 
> But, on CentOS 4.5 , We get issues.
> 
> here are rpms installed on  CentOS 4.5
> 
> [root at lwlsvr ~]# rpm -qa |grep cups
> hal-cups-utils-0.5.2-8
> libgnomecups-0.1.12-5
> cups-1.1.22-0.rc1.9.20
> cups-libs-1.1.22-0.rc1.9.20
> 
> [root at lwlsvr ~]# rpm -qa |grep samba
> system-config-samba-1.2.21-1.el4.1
> samba-common-3.0.10-1.4E.11
> samba-3.0.10-1.4E.11
> samba-client-3.0.10-1.4E.11
-------------------------------
You Hit the Apply Button But did you bother to make it Default Printer?

JohnStanley

On Wed, Dec 17, 2008 at 11:42 PM, Indunil Jayasooriya
<indunil75 at gmail.com> wrote:
> Hi ALL,
>
>
> When we check logs , we see something like this.
>
> [Job 888] Unable to connect to printer; will retry in 30 seconds...:
> Connection timed out
>
> Then, What we do is , We go to application, system setting, printing
>
> and when we get the window, We click apply button,
> Then, again, We will be able to print.
>
> Could u pls let me know why?
>
I can't tell you why, but I can expound on this a little.

I run CentOS on my desktop at home, x86_64.  I started on 4.4 and am
now running 5.2.  During most of this time, I had a Minolta PagePro
1100 printer with parallel (lp0) interface that worked fine - except
that every once in a great while, I would get this error, and there
was NO way to clear it except to reboot.

ABout a month ago, that printer gave up the ghost (ok, the second drum
wore out), so I replaced it with a Brother HL-2140 with a USB
interface.  I noticed that this problem occurs every time I boot my
vmware Windows VM if the printer is attached to the VM, and once,
recently, even when it wasn't.  (I wonder if this is related to the
previous issue on the Minolta....)  What usually clears this is to
empty the queue, go into the System->Administration->Printer applet
(or run system-config-printer as root), disable the printer, cycle
power on the printer, then re-enable it,  Then it works fine.

Interesting points:

1) Only seems to happen when vmware is involved, most often if the
printer is accessible to the vmware VM (usually I have this disabled,
for obvious reasons).

2) Disconnecting the USB cable and plugging it back in has no effect -
I have to cycle the power on the printer, and only after it has been
disabled.

3) This whole process MUST take at least 30 seconds because if I do it
too fast, it doesn't work.  This may be related to the timeout issue.

I strongly suspect that there is a bug somewhere in the printer system
(CUPS maybe?) such that, once a printer gets out of sync (like this),
it requires a reset to fix it.  With the parallel printer, I had to
reset the system.  With the USB printer, I can reset the printer,
probably because the underlying OS layers are designed to handle USB
devices going on and off line more easily that the parallel device(s).

Given the issue I have seen with vmware, I wonder if the issue in your
situation has to do with passing control of the printer around on your
network.  I know that sort of thing _should_ not happen, but reality
has a nasty way of intruding on our needs-and-expectations-based
world.

Perhaps someone better informed on the details inside can comment....

HTH

mhr

Indunil Jayasooriya wrote:
> Hi ALL,
>
> I recently withed from CentOS 3 X  server to CentOS 4.5. It works fine
> other than printers.
>
> there are many printers connected to it. We have configured the commnad
>
> printconf
>
> queue type is Networked UNIX (LPD)
>
>
> Some times, we will be able to print , But, some times, We will NOT be
> able to print.
>
> We can ping its ip address. Even, when we can't print, We can ping its
> ip address.
>
> When we check logs , we see something like this.
>
> [Job 888] Unable to connect to printer; will retry in 30 seconds...:
> Connection timed out
>
>
> snip
>
>
> Hope to hear form you.
>
>
>
>   
We have a CentOS 4.x server at a hosting facility that currently has 73 
printers defined on various protocols (socket, ipp, lpd) which can see 
extensive delays in print jobs.  We are seeing the same error in our 
logs.  As a work around for this issue you can do a cupsdisable then a 
cupsenable for the effected printer which should clear the delay and 
start it working again, provided that you can ping the printer and the 
printer itself is not causing the problem. If that does not fix it try 
doing a service cups restart.

Mark