topic Re: ulimit error in Operating System - HP-UX

ulimit error

Rommel T. Misa_2 — Thu, 05 Feb 2009 02:26:33 GMT

I am trying to install Oracle BI on my rx7640 server with 4 cores and 8 GB RAM running HP-UX. When I increase my ulimits I get the following error:

# ulimit -n unlimited
sh: ulimit: The specified value exceeds the user's allowable limit

What kernel parameter should I tweak to overcome this? Any advise will help.

Thanks!

Re: ulimit error

Shinji Teragaito_1 — Thu, 05 Feb 2009 02:46:06 GMT

It seems to me the same question was recently posted. Please refer to the following thread.

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1310293

Regards,

Re: ulimit error

Rommel T. Misa_2 — Thu, 05 Feb 2009 02:57:12 GMT

We already set maxfiles and maxfiles_lim to maximum values but when we did so, our kernel got corrupted and we had to restore from Ignite. :(

Rommel

Re: ulimit error

Patrick Wallek — Thu, 05 Feb 2009 03:40:03 GMT

So don't set those to their maximum values.

You **SHOULD** set them to another value, but you need to stop and think a bit first.

The maximum value is likely way too large on most systems.

Re: ulimit error

Rommel T. Misa_2 — Thu, 05 Feb 2009 04:18:36 GMT

Thanks for the input. Is there a way to compute for the "just enough" value for maxfiles and maxfiles_lim to accommodate the ulimit value requested?

Re: ulimit error

Dennis Handly — Thu, 05 Feb 2009 04:35:39 GMT

>Is there a way to compute for the "just enough" value for accommodate the ulimit value requested?

Start with 4096 and see if the application aborts? 10K may be a reasonable number.

You can use glance to see how many files are open.
On 11.31, there is pfiles(1).