topic Re: fork failed: No more processes in Operating System - HP-UX

fork failed: No more processes

OLIVA_1 — Tue, 19 Sep 2006 11:02:18 GMT

Hello,

I have this error meesage "fork failed: No more processes" just after rebooting server (Model : 9000/800/L1500-5x ; OS : HPUX 11.11).
I have just modified "maxusers" kernel parameter from 512 to 1024 in order to increase "nproc" parameter but without success...

I would like count the process number, how can I get it ?

nproc parameter is currently set to 8212.

Thanks,

Re: fork failed: No more processes

spex — Tue, 19 Sep 2006 11:08:36 GMT

Hi,

# ps -e | wc -l
or
# sar -v 5 1

PCS

Re: fork failed: No more processes

James R. Ferguson — Tue, 19 Sep 2006 11:08:41 GMT

Hi Oliva:

You can use 'sar -v ' or 'glance' [tottle "t" for kernel tables] to ascertain the current value of 'nproc'.

That aside, do not bother using the 'maxusers' define. It is deprecated and not really a kernel parameter. Simply set 'nproc' to an appropriate value.

Regards!

...JRF...

Re: fork failed: No more processes

Jaime Bolanos Rojas. — Tue, 19 Sep 2006 11:12:12 GMT

Hi Oliva!

It looks like you are having memory problems becuase of the "fork failed" error.
If you want to know a way to check on processes I would recommend you to get procsize, this is an unsupported utility that HP has.

If you are having problems with processes you would be getting error like table if full in syslog or dmesg.

Please send the output for swapinfo -tam and vmstat 5 20 please.

Regards,

Jaime.

Re: fork failed: No more processes

OLIVA_1 — Tue, 19 Sep 2006 11:16:20 GMT

I found !!!

I have increased maxupc (max processes per user) from 100 to 400, and it is ok.

Thanks,