I am installing a statistical applicaton and for its web components it is a listed requirement that I have soft limits of files (20480) and no of processes (soft t o 10240). I am on RHEL 6.1.
As root I made the following changes in /etc/security/limits.conf
Code:
* soft nproc 10240
* hard nproc 35000
* soft nofile 20480
* hard nofile 60000
However my deployment keeps failing. On checking I see these values still
Code:
ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 62538
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 20480
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 1024 #<---------this one wont chg
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
I log out, restart deployment from scratch but so far no good. I am not an admin so I am sure I am missing something.
I searched this forum but did not find much under nproc keyword search.
Thank you in advance,
Last edited by Scott; 09-09-2013 at 02:47 PM..
Reason: Code tags, please...
Thank you for the answer and your time, I am indeed using ssh to access. I have no way to access the terminal directly...so now further will try to find out how to find if priv separation is indeed enabled and how to disable it. I did run the couple of cmds listed in the bug track:
Code:
ulimit -H -u = 35000 & ulimit -S -u 1024
were my outcomes.
TY again.
---------- Post updated at 01:46 PM ---------- Previous update was at 01:36 PM ----------
Did find /etc/ssh and sshd_config in there, the priv line is commented out...what does that mean?
Code:
#UsePrivilegeSeparation yes
I am afraid this where my any adv knowledge ends and do not want to mess things...if any could suggest what else to check...I would be grateful.
One question I did not ask, normally does one need to reboot server after limits.conf change? I read that it is not needed (RHEL 6.1/6.2)? That change is effective immediately.
You should also have kernel.pid_max = 65535 in /etc/sysctl.conf (higher than the 35000 limit, and lower than 99999 to avoid problems with some tools).
And there are some tools that do not like the 35000 limit: e.g. sshd at least will take a long time to start/fork (time to close all 35000 file handles).
Last edited by MadeInGermany; 09-09-2013 at 04:39 PM..
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