Multiple lpsched processes

[Jack C. Mahaffey]

I have multiple lpsched processes running on my HP-UX, Version 11.0

I've ran the /sbin/init.d/lp stop to stop and then restart lpsched but the multip lpsched processes start up again.

Here's ps output for the lp user:
[5568]root:/var/spool/lp # ps -fxu lp
UID PID PPID C STIME TTY TIME COMMAND
lp 6211 6084 0 Aug 12 ? 0:00 cat /var/spool/lp/request/Printer108/dA4069chl001h
lp 6142 6087 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/model.orig/Printer59 Printer59-1607 rb23cbs1 1 /var/spool/lp/request/Printer59/dA1607chl001h
lp 6084 6044 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/model.orig/Printer108 Printer108-4069 pc4oper 1 /var/spool/lp/request/Printer108/dA4069chl001h
lp 6214 6103 0 Aug 12 ? 0:09 /opt/hpnp/bin/hpnpf -j Printer225-1466+annexrec -x Printer225
lp 6103 6102 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/Printer225 Printer225-1466 annexrec 1 /var/spool/lp/request/Printer225/dA1466chl001h
lp 6043 6026 0 Aug 12 ? 0:00 /usr/lib/lpsched
lp 6235 6142 0 Aug 12 ? 0:00 cat /var/spool/lp/request/Printer59/dA1607chl001h
lp 6102 6026 0 Aug 12 ? 0:00 /usr/lib/lpsched
lp 6086 6026 0 Aug 12 ? 0:00 /usr/lib/lpsched
lp 13157 13156 6 15:33:35 ? 0:00 /usr/bin/sh /etc/lp/interface/Printer255p1 Printer255p1-4200 sl3oper 3 /var/spool/lp/request/Printer255p1/dA4200chl001h
lp 6087 6086 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/Printer59 Printer59-1607 rb23cbs1 1 /var/spool/lp/request/Printer59/dA1607chl001h
lp 6085 6044 0 Aug 12 ? 0:10 /opt/hpnp/bin/hpnpf -j Printer108-4069+pc4oper -x 1xx.2x0.38.120
lp 13156 6026 2 15:33:35 ? 0:00 /usr/lib/lpsched
lp 6026 1 1 Aug 12 ? 19:29 /usr/lib/lpsched
lp 6145 6087 0 Aug 12 ? 0:10 /opt/hpnp/bin/hpnpf -j Printer59-1607+rb23cbs1 -x 1xx.2x0.38.71
lp 13167 13157 4 15:33:36 ? 0:00 /usr/sbin/rlp -IPrinter255p1-4200 /var/spool/lp/request/Printer255p1/dA4200chl001h
lp 6238 6195 0 Aug 12 ? 0:00 cat /var/spool/lp/request/Printer225/dA1466chl001h
lp 6044 6043 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/Printer108 Printer108-4069 pc4oper 1 /var/spool/lp/request/Printer108/dA4069chl001h
lp 6195 6103 0 Aug 12 ? 0:00 /usr/bin/sh /etc/lp/interface/model.orig/Printer225 Printer225-1466 annexrec 1 /var/spool/lp/request/Printer225/dA1466chl001h

Recommendations to get it down to only one lpsched process running?


Thanks in advance...
Jack

[Patrick Wallek · Accepted solution]

First do:

# /sbin/init.d/lp stop

Now,

# ps -ef | grep lp

Look for any remaining lpsched or other lp processes and kill them. The lpsched processes I see on your system are from August 12, so they are leftover from a couple of weeks ago. Once you kill those, restart lp and see what happens.

[A. Clay Stephenson]

You should have at most one lpsched process running. Do an lpshut. Next look for any /var/spool/lp/SCHEDLOCK and /var/spool/lp/*FIFO* files and remove them. Next do a ps -ef | grep "lp" and kill any lp processes. You should also kill any remaining hpnpf JetDirect processes. These will occasionally hang.

After this, a normal lpsched should leave with with exactly one lpsched process running.

[Jack C. Mahaffey]

Thanks both... Will follow your recommendations tomorrow and we'll see if they come back. Won't forget to kill the processes and remove the files.


Thanks again...

[Jack C. Mahaffey]

Oh yeah... I'll assign points tomorrow after the process is back up.

[Sยภเl Kย๓คг]

Try using 'lpshut' to stop the lp scheduler and to start it by 'lpsched' command
regards
SK