Open files per process

[Brian Lee_4]

Is there any command or tool to find out that certain process opens how many files.

I had some issue with kernel parameter, nfile.
When open files reach the value of nfile, I can't telnet into the system.
I tried to find which process opened how many files but I couldn't.

Please help me out.

[harry d brown jr · Accepted solution]

lsof

http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.70/

live free or die
harry

[Pete Randall]

Brian,

Sounds like a job for lsof. For 64 bit 11i: http://the-other.wiretapped.net/security/host-security/lsof/binaries/hpux/B.11.11/

For 11.0:
http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.70/


Pete

[Sridhar Bhaskarla]

Hi,

You will have to install 'lsof' to find out the open files on the system. Simply use

lsof > lsof.out

Then sort out through second column. It is the pid of the process. You can write a small script to find the number of open files per process.

-Sri

[Fred Ruffet]

lsof is a great tool, and may easily be included in scripts, but if your action is done only once, and have glance already installed, it can give you the info.

regards,

Fred

[Tim D Fulford]

dont you just hate it when 4 people get there before you... lsof... But I guess yopu got the idea!!

Tim

[Camel_1]

GLANCE always is an option to check the process details.

Simon

[Sanjay_6]

Hi,

Your problem may not be due to the no of processes, but could be due to the limit being reached on the number of telenet sessions allowed on the box.

Try this to identify yout problem and see if it can be due to something other than the limit on the no of files / processes.

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000072193612

The ITRC doc id is KBRC00014017.

Hope this helps.

Regds

[Bill Hassell]

Very important: nfile may be the originaql default value, jut a few hundred. It can be set to thousands or tens of thousands. Just run SAM and change the value. Remember that every process uses a minimum of 3 files (stdin, stdout, stderr) plus whatever the program needs. If you have 200 processes running, you can figure that nfile needs to be at least 1000. But to be sure, look at sar -v 1. The file and proc columns will show you the current values and maximum values. Your system is capable of running 10 or 100 times more processes--just adjust the kernel parameters.

[Brian Lee_4]

I tried to install C compiler before I installed lsof but it requires "gmake".
Please let me know where I can get the program.

[Steven E. Protter]

Just a note: If you run into a situation where nproc is set high but a given user or job can't seem to open enough processes.

check kernel parameter maxuprc

max processes per user.

It defaults to 75 and that can be a problem once in a while.

SEP

[Manish Srivastava]

Hi,

You can try this site...

http://software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXIEXP1123


manish

[harry d brown jr]

Brian, Don't build it, just download the RUN TIME depot and install it:

http://hpux.cs.utah.edu/ftp/hpux/Sysadmin/lsof-4.70/lsof-4.70-sd-11.00.depot.gz

put it on your server, then gunzip it:

cd /opt/
gunzip lsof-4.70/lsof-4.70-sd-11.00.depot.gz
swinstall -s /opt/lsof-4.70/lsof-4.70-sd-11.00.depot

live free or die
harry

[Brian Lee_4]

After I install lsof depot, I run "lsof > lsof.file" command but I get the following error.

can't read proc table info

please help me

[harry d brown jr]

are you root ?

Is the OS HPux 11i (11.11v1) ?

What would you say your patch level is on your system ?

live free or die
harry

[Brian Lee_4]

yes, it is 11iv1
patch: sep, 2003