Memory leak on 10.20

[Brian Barbour]

I am running a 9000 D280 server with 10.20. I am experiecing significant problem with memory "filling up" and then rendering the system non-functional unless I reboot. Swapinfo reveals my memory usage to be around 9% at reboot only to climb over the course of six hours to 78 %. Over the course of the next two weeks it will approach 100% and lock up the server. I was wondering what insight anyone had into this. I have 640 MB of memory and two swap spaces matching that size.

brian

[harry d brown jr]

Do you have your machine up-to-date with patches?

Have you identified what application is causing the issue?

Do you have glance/measureware installed?

live free or die
harry

[Ken Hubnik_2]

This command will grep on the process and sort by memory usage. Run it several times and see if a process is growing memory.

UNIX95= ps -e -o vsz,ruser,pid,args | sort -rn | head

[Martin Johnson]

If you have glance you can check which process is increasing memory usage.

If you don't have glance, you can use top.

HTH
Marty

[A. Clay Stephenson]

10.20 is now very stable; I would suspect two things: 1) System needing patching - I would apply the latest General Release patchset 2) Bad application code. You need to identify processes who are growing over time using this command on a periodic basis:

UNIX95= ps -eo vsz,ruser,args | sort -rn

Glance would also be an excellent tool to spot memory leaks.

[Bill Hassell]

I know of no significant memory leaks in HP-UX 10.20 so the problem is likely with application programs. This is highly likely since swap usage is growing which means programs are either growing or the number of programs is increasing.

[Brian Barbour]

Thanks for all the input. I was wondering where I can get a copy of "glance" it is not loaded on my server. Also some of you have mentioned that I use ps -e o but my system says the -o option is illegal. Any thoughts?

[Pete Randall]

Brian,

You can find Glance (the 30 day trial version) on your application CDs.

In order to use the -o option of ps, you need to use the UNIX95 syntax like Ken had it:

UNIX95= ps -e -o vsz,ruser,pid,args | sort -rn | head


Not the space following the = sign.

Pete

[Armin Feller]

Hi Brian,

here a patchlist which fixes all currently known memory leaks in HP-UX 10.20

PHNE_22507 ARPA
PHNE_22877 NFS (
PHNE_22085 Streams PTY PHNE_18870 FDDI
PHNE_2190[34] DLPI
PHKL_2089[01] PM/VM
PHKL_23258 SCSI
PHNE_25501 ATM
PHNE_25619 STREAMS PHNE_23195 100BT
PHNE_18870(?) FDDI
PHNE_12559

If you download and install this your problem should be solved.

;-))) quick and dirty solution ;-)))

Regards,
Armin