topic Re: File table overflow in Operating System - HP-UX

File table overflow

Anoop R Nath — Wed, 21 Oct 2009 12:32:07 GMT

Hi all,

How I can monitor the file table in HP-UX 11.11?
Is there any options in SAM/Glance to inform the user when the value of nfile exceeds.

Re: File table overflow

James R. Ferguson — Wed, 21 Oct 2009 12:36:12 GMT

Hi:

You can use 'sar -v' or glance. With 'glance', toggle the 't'able view.

Regards!

...JRF...

Re: File table overflow

Anoop R Nath — Wed, 21 Oct 2009 12:42:08 GMT

Thank you James. But using this I will get only the realtime output only .Right? But I need the output only when the nfile value exceeds the limit.

Re: File table overflow

James R. Ferguson — Wed, 21 Oct 2009 12:47:29 GMT

Hi (again):

> But using this I will get only the realtime output only .Right? But I need the output only when the nfile value exceeds the limit.

The 'file-ov' column of 'sar's output tells you the number of times the system file table overflowed during the sample interval.

All this aside, you would be far better to tune up your 'nfile' kernel parameter. It uses tiny amounts of memory for large values. When you get to 11.31, the parameter is obsolete too.

Regards!

...JRF...

Re: File table overflow

Anoop R Nath — Wed, 21 Oct 2009 16:29:11 GMT

Thanks to everyone

Re: File table overflow

Dennis Handly — Thu, 22 Oct 2009 08:53:22 GMT

You can also use kcusage(1m) to get the value of nfile on 11.23:
$ /usr/sbin/kcusage nfile
Tunable Usage / Setting
nfile 773 / 65536