topic Re: script to reset print spooler in Operating System - HP-UX

script to reset print spooler

James Wardlaw_1 — Tue, 09 Apr 2002 16:53:02 GMT

I capture text on a pc from my HP-UX 10.2 server. for some reason the spooler hangs and to get it going again i have to manually start and stop the print spooler almost daily. ie after a weeks vacation i have 8,000 small print requests in the que. If i had a script that would reset the spooler daily this wouldnt hang up my spooler.

Thanks,

James

Re: script to reset print spooler

harry d brown jr — Tue, 09 Apr 2002 16:56:25 GMT

Start your script like this:

#!/usr/bin/ksh
#

then add your commands to it, then tell cron to run it once a day.

live free or die
harry

Re: script to reset print spooler

pap — Tue, 09 Apr 2002 16:59:28 GMT

Hi you can do as below

/sbin/init.d/lp stop
/sbin/init.d/lp start

That will restart the spooler

put the script in cronjob.

-pap

Re: script to reset print spooler

harry d brown jr — Tue, 09 Apr 2002 17:03:24 GMT

The real problem to SOLVE is WHY is it hanging the spool queue? Solve that problem and you don't need to "bounce" the spooler.

Can any of this be answered?
* What are you "capturing"?
* how are you doing it (capturing)?
* how are you sending it to the print queue?
* is the printer hung?
* are there any "control" or "escape sequences" in the file being sent to the printer?

live free or die
harry

Re: script to reset print spooler

MANOJ SRIVASTAVA — Tue, 09 Apr 2002 17:09:42 GMT

Hi James

First the reason as to why it happenes to be found out . Incase still you want the script
add the following to the cron of the root

0 1 * * * /usr/local/adm/lprestart

and under the directory /usr/local/adm

create and executable script

#!bin/sh
/usr/sbin/lpshut
sleep 30
/usr/sbin/lpsched

please make sure that the permissions are set to excutable

Manoj Srivastava

Re: script to reset print spooler

Ross Martin — Tue, 09 Apr 2002 17:26:32 GMT

You may want to check to see if you have the latest lpspool cumulative patch PHCO_25109 for 10.20. (No reboot required and no dependencies).

It deals with spooler hangs and such -- maybe that is what you are encountering and it can be resolved with a patch.

Hope that helps.

Ross Martin
HP Response Center

Re: script to reset print spooler

Bill Hassell — Tue, 09 Apr 2002 17:41:30 GMT

It's not normal for the spooler to hang. Have you kept your system up to date on patches? Not just lp spooler but ARPA networking and LVM and shells, etc?

The process to shutdown the spooler and restart it is simply:

# lpshut
# lpsched

However, you might want to call the standard HP-UX start/stop script as in:

# /sbin/init.d/lp stop
# /sbin/init.d/lp start

Just put this into a script such as:

#!/usr/bin/sh
/sbin/init.d/lp stop
/sbin/init.d/lp start

But you might also check for hung instances of lp processes:

# ps -u lp

So the script becomes:

#!/usr/bin/sh
/sbin/init.d/lp stop
sleep 2

PID4LP=$(/usr/bin/ps -u blh | awk '$1 !~ /PID/ {print $1}')
if [ $PID4LP#} -ne 0 ]
then
for PIDLP in $PID4LP
do
/usr/bin/kill -9 $PIDLP
done
/sbin/init.d/lp start

Put the above into a script, test it to see that it really works OK (hint, use sh -x ro run the script) and then add it to cron.

Re: script to reset print spooler

Steve Steel — Wed, 10 Apr 2002 05:56:09 GMT

Hi

All good advice especially for the patches.

One more.

Check the value of nproc and maxuprc.

If maxuprc is low the spooler can hang.

Steve Steel