I'm guessing that the alarm threshold coded in Nagios is set to alarm on a value without regard to number of cores. I'd have a look at the scripts and make adjustments such that the number of cores is taken into account.
I just peeked at one of our larger machines (255 cores) which is showing this load average:
Depending on the sophistication of the scheduler, it is very possible to end up with a machine that is more heavily loaded. It's also possible that the load is more evenly balanced than it appears from the Nagios alarms, but the other machines are just running under the threshold value.
Hi,
I am seeing very high kernel usage and very high load averages on my system (Although we are not loading much data to our database). Here is the output of top...does anyone know what i should be looking at?
Thanks,
Lorraine
last pid: 13144; load averages: 22.32, 19.81, 16.78 ... (4 Replies)
we have an unix system which has
load average normally about 20.
but while i am running a particular unix batch which performs heavy
operations on filesystem and database average load
reduces to 15.
how can we explain this situation?
while running that batch idle cpu time is about %60-65... (0 Replies)
Hi Buddies,
Thanx for reading my first post...
After googling a lot and searching so many forums I am feeling down a bit...
Please don't mind my ignorence, and my grammer ... :)
My server is running RHEL 2.6.9-5.EL. The cpu load is going higher than roof, almost 100 sometimes.
I am... (2 Replies)
Hello AlL,..
I want from experts to help me as my load average is increased and i dont know where is the problem !!
this is my top result :
root@a4s # top
top - 11:30:38 up 40 min, 1 user, load average: 3.06, 2.49, 4.66
Mem: 8168788k total, 2889596k used, 5279192k free, 47792k... (3 Replies)
Hi All,
Please see to the prstat o/p of one of my sun box..
Total: 1 processes, 68 lwps, load averages: 531.00, 305.18, 144.77 Check the pstack ....
As i have read in all docs , people say a value of 5 is considered high CPU usage , i don't know then how we can even relate those... (3 Replies)
i have a Intel Quad Core Xeon X3440 (4 x 2.53GHz, 8MB Cache, Hyper Threaded) with 16gig and 1tb harddrive with a 1gb port and my apache is causing my cpu to go up to 100% on all four cores heres my http.config
<IfModule prefork.c>
StartServers 10
MinSpareServers 10
MaxSpareServers 15... (4 Replies)
With linux kernel 2.4.22-1.2199.nptlsmp (I know, it's very old) Sometimes Load average increases to big value (over 7) but my 4 vCPU are in
idle state (5% busy every cpu). My web procedure was gone down so I found out that process (with 4732 process id, see my following output)
was in... (4 Replies)
Nagios::Plugin::Performance(3pm) User Contributed Perl Documentation Nagios::Plugin::Performance(3pm)NAME
Nagios::Plugin::Performance - class for handling Nagios::Plugin performance data.
SYNOPSIS
use Nagios::Plugin::Performance use_die => 1;
# Constructor (also accepts a 'threshold' obj instead of warning/critical)
$p = Nagios::Plugin::Performance->new(
label => 'size',
value => $value,
uom => "kB",
warning => $warning,
critical => $critical,
min => $min,
max => $max,
);
# Parser
@perf = Nagios::Plugin::Performance->parse_perfstring(
"/=382MB;15264;15269;; /var=218MB;9443;9448"
)
or warn("Failed to parse perfstring");
# Accessors
for $p (@perf) {
printf "label: %s
", $p->label;
printf "value: %s
", $p->value;
printf "uom: %s
", $p->uom;
printf "warning: %s
", $p->warning;
printf "critical: %s
", $p->critical;
printf "min: %s
", $p->min;
printf "max: %s
", $p->max;
# Special accessor returning a threshold obj containing warning/critical
$threshold = $p->threshold;
}
# Perfdata output format i.e. label=value[uom];[warn];[crit];[min];[max]
print $p->perfoutput;
DESCRIPTION
Nagios::Plugin class for handling performance data. This is a public interface because it could be used by performance graphing routines,
such as nagiostat (http://nagiostat.sourceforge.net), perfparse (http://perfparse.sourceforge.net), nagiosgraph
(http://nagiosgraph.sourceforge.net) or NagiosGrapher (http://www.nagiosexchange.org/NagiosGrapher.84.0.html).
Nagios::Plugin::Performance offers both a parsing interface (via parse_perfstring), for turning nagios performance output strings into
their components, and a composition interface (via new), for turning components into perfdata strings.
USE'ING THE MODULE
If you are using this module for the purposes of parsing perf data, you will probably want to set use_die => 1 at use time. This forces
&Nagios::Plugin::Functions::nagios_exit to call die() - rather than exit() - when an error occurs. This is then trappable by an eval. If
you don't set use_die, then an error in these modules will cause your script to exit
CLASS METHODS
Nagios::Plugin::Performance->new(%attributes)
Instantiates a new Nagios::Plugin::Performance object with the given attributes.
Nagios::Plugin::Performance->parse_perfstring($string)
Returns an array of Nagios::Plugin::Performance objects based on the string entered. If there is an error parsing the string - which
may consists of several sets of data - will return an array with all the successfully parsed sets.
If values are input with commas instead of periods, due to different locale settings, then it will still be parsed, but the commas will
be converted to periods.
OBJECT METHODS (ACCESSORS)
label, value, uom, warning, critical, min, max
These all return scalars. min and max are not well supported yet.
threshold
Returns a Nagios::Plugin::Threshold object holding the warning and critical ranges for this performance data (if any).
rrdlabel
Returns a string based on 'label' that is suitable for use as dataset name of an RRD i.e. munges label to be 1-19 characters long with
only characters [a-zA-Z0-9_].
This calls $self->clean_label and then truncates to 19 characters.
There is no guarantee that multiple N:P:Performance objects will have unique rrdlabels.
clean_label
Returns a "clean" label for use as a dataset name in RRD, ie, it converts characters that are not [a-zA-Z0-9_] to _.
It also converts "/" to "root" and "/{name}" to "{name}".
perfoutput
Outputs the data in Nagios::Plugin perfdata format i.e. label=value[uom];[warn];[crit];[min];[max].
SEE ALSO
Nagios::Plugin, Nagios::Plugin::Threshold, http://nagiosplug.sourceforge.net.
AUTHOR
This code is maintained by the Nagios Plugin Development Team: see http://nagiosplug.sourceforge.net.
COPYRIGHT AND LICENSE
Copyright (C) 2006-2007 Nagios Plugin Development Team
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2010-12-03 Nagios::Plugin::Performance(3pm)