topic Re: utmp file cleaning in Operating System - HP-UX

utmp file cleaning

Wenth Leopold — Fri, 20 Feb 2009 15:30:57 GMT

dear all
i have in /etc/ the file utmp
with the command who -u i can see that in this
file there are processes which in fact do not
exist anymore
what is the best way to clean that utmp
file , so that i have the correct who -u display

Re: utmp file cleaning

T G Manikandan — Fri, 20 Feb 2009 15:35:58 GMT

If you dont need to preserve data:
# cat /dev/null > /var/adm/wtmp

If you want to preserve :
# /usr/sbin/acct/fwtmp < /var/adm/wtmp > /tmp/wtmp_data
Edit & make changes, then
# /usr/sbin/acct/fwtmp -ic < /tmp/wtmp_data > /var/adm/wtmp

Re: utmp file cleaning

James R. Ferguson — Fri, 20 Feb 2009 15:36:30 GMT

Hi Wenth:

A reboot is the simplest, cleanest choice.

Regards!

...JRF...

Re: utmp file cleaning

T G Manikandan — Fri, 20 Feb 2009 15:40:27 GMT

Please ignore my previous post.

Re: utmp file cleaning

T G Manikandan — Fri, 20 Feb 2009 16:13:39 GMT

I had given the steps to fix the corrupt wtmp file.
I have never tried fwtmp with utmp, but should follow the procedure to fix it. Make sure you backup the current file before any changes.

Thanks.

Re: utmp file cleaning

Dennis Handly — Sat, 21 Feb 2009 03:03:20 GMT

>T G Manikandan: I had given the steps to fix the corrupt wtmp file.

It seems to work fine for me:
$ /usr/sbin/acct/fwtmp < /etc/utmp > utmp_t
$ /usr/sbin/acct/fwtmp -ic < utmp_t > utmp_t.bin
$ cmp -l utmp_t.bin /etc/utmp
1055 0 162
1056 0 162

But it depends on the OS since utmpd(1m) is being used on 11.23. And that uses /etc/utmpx.

Re: utmp file cleaning

Wenth Leopold — Sun, 22 Feb 2009 09:52:50 GMT

dear all

reboot is in my case not possible
the "lost processesnumcbers " is see i
in my utmp are mainly processes with
the name gold -- which is in fact goglobalux version 2.2.6 -- maybe one of you have same programm with the same troubles -
by troubles i mean - that if i have these many "ghost processes" new users cannot start
the apllication any more -- only stopping and starting of goglobalux solves my problems
-- maybe these gold processes are execeeding also som kernelparameters --

Re: utmp file cleaning

Wenth Leopold — Sun, 22 Feb 2009 10:01:20 GMT

hallo
i forgot to post my hp ux version

B.11.11 U 9000/800

Re: utmp file cleaning

Dennis Handly — Sun, 22 Feb 2009 18:27:45 GMT

>reboot is in my case not possible

Then try using fwtmp to remove these phantom processes.