Ulimit restriction

[gibily]

Hi, on HP-UX 11 Itry to increase the ulimit file's value (for the Oracle user) like "ulimit -f unlimited" but we get the following error /usr/bin/sh: ulimit: The specified value exceeds the user's allowable limit. This user uses the POSIX shell (sh) and by default the ulimit file's value is set to 2113674.
I checked /etc/profile and there is no restriction.
My question is, how can I increase this value ?
Thanks.

[federico_3]

modify the /var/adm/cron/.proto like the following:

cd $d
if [ "$1"= "4194304"]; then
ulimit unlimited
echo was number
else
ulimit $1
echo was unlimited
fi
ulimit
umask $m
$<



Ciao
Federico

[gibily]

Thanks federico,
but I don't use the cron to run my scripts.
Anyway I changed the script as you said, but it still doesn't work.
New idea ?

[Michael Tully]

Hi,

ulimit has only got variables when used in conjunction with the posix shell. No other shell has options for posix. Have a look at the man page for sh-posix.

HTH
-Michael

[gibily]

Hi Michael, I also tried with ksh, (the limit is set to 2113674), when I want to increase it by typing, ulimit 2200000 I receive the message : ksh: ulimit: bad number
There is somewhere a limit set, but where ?

[S.K. Chan]

Did you check the user's .profile ?

[K.Vijayaragavan.]

How about adjusting the values of below mentioned configurable files parameters (kernel parameters) in sam?

1)maxfiles_lim
2)maxfiles
3)nfile
4)nflocks
5)ninode

-K.Vijay

[Steven Sim Kok Leong]

Hi,

What is your maxdsiz btw?

Hope this helps. Regards.

Steven Sim Kok Leong

[gibily]

Yes, I checked the user's .profile, and there is nothing set. I also checked the kernel parameters as you said,
1)maxfiles_lim 2048
2)maxfiles 2048
3)nfile 12008
4)nflocks 664
5)ninode 7360
maxdsiz 1073741824
maxdsiz_64bits 1073741824

By the way, we have another server with the same kernel's parameters, and we don't have this problem ?
It seems that it has something to do with the shell, but on all our HP systems we use sh-posix and the ulimit value is set to unlimited by default. But I don't know here this default value is set ?

[K.Vijayaragavan.]

Hi,

"find / -type f | xargs grep ulimit | pg"

command should help you in finding where all the files "ulimit" command is used.

-K.Vijay

[Zeev Schultz]

Actually ulimit has two kinds - hard and soft,
(sh-posix(1) man) and the difference is that
hard limit can not be increased once it's been
set but soft can.What happens is if you do not specify which limit you change (soft or hard ) with -H/-S flags after "ulimit" command,it changes both and afterthat impossible to change soft "-f" value.
What can be done is to leave the current shell,
relogin,check with "ulimit -fH","ulimit -fS" ulimit -fS can go up to ulimit -fH and change
as needed.