topic Glance in Operating System - HP-UX

Glance

augusto cossa — Thu, 05 Oct 2000 13:26:34 GMT

Good Day,

I was running glance and I received below message:

RED ALERT File Table is nearly full.

Help on it.

Regards,

Augusto

Re: Glance

Rick Garland — Thu, 05 Oct 2000 13:28:10 GMT

The file table is a kernel parm

Re: Glance

James R. Ferguson — Thu, 05 Oct 2000 13:31:28 GMT

Hi:

Glance is telling you that your system has too many open files. You may have rogue processes that you need to kill. More likely is that you need to make some adjustments to kernel parameter (as done with SAM).

...JRF...

Re: Glance

John Palmer — Thu, 05 Oct 2000 13:56:16 GMT

Hi Augusto,

You can look at the state of the File Tale by using the 't' command in Glance.

As stated in the previous responses, you may need to increase the kernel parameter 'nfile'.

Regards,
John

Re: Glance

Alan Riggs — Thu, 05 Oct 2000 14:55:07 GMT

If you have sar properly configured on your box, sar -v will show you a day's history on the file table so that you can see when teh filetable started to fill.

Regardless, unless you had a program spinning out of control and causing an unusual number of open files you will want to increase nfile and reboot.

Re: Glance

Bill Hassell — Thu, 05 Oct 2000 15:01:48 GMT

Sounds like your system may be growing. The first taak is to verify that this is expected (ie, more users, more programs, etc). If not, then a runaway process or script may be using most of your file handles.

But if it is indeed growing in usage (as is true of most computers), you will have to take an active role in expanding the tables needed to keep pace with the load. There are two ways:

1. Use the formula macro: maxusers
and increase it (double or triple it)

2. Manually override the formulae with a specific value. To see nfile (and nproc), use the command: sar -v 1

nfile (maximum number of files open for the entire system) and nproc (max processes for the entire system) are related: if you have nproc set to 500, then nfile needs to be at least 3x larger, more like 5x since every process has at least 3 file handles (STDIN STDOUT STDERR) and most likely several more.

Re: Glance

Manju Kampli — Fri, 06 Oct 2000 00:52:38 GMT

Glance is complaining you that your system has too many open files.

You may have huge processes process running on your system.
if this problem is coming more frequently you need increase nfile kernel parameter