Summary: Nagios / NagiosGrapher / performance monitoring

[Hugo van der Kooij]

Hi,

After doing some tests and keeping it running for several days I can now
make a summary of what I did to make NagiosGrapher work for me at this
point.

 1. Running a perl script to gather data is too slow if multiple events
occur. As the C program did not work for me I have opted to use printf and
send it to the named pipe like this:

# 'process-service-perfdata' command definition
define command {
        command_name    process-service-perfdata
        command_line    /usr/bin/printf "%b" "$HOSTNAME$\t$SERVICEDESC$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n" >> /var/spool/nagios/ngraph.pipe
        }

 2. Sending 4 results at once to the named pipe is logged correctly by the
collect tool but did not do an update to all of the RRD files. At present
the work around is to run just 1 service check at the time and feed it to
the collector. For this I modified some other entries in Nagios:

max_concurrent_checks=1
service_reaper_frequency=1

This does have an impact on the total number of services you can check. I
will try to play with it a bit more to see if changing it will have a
reverse effect.

But for now all performance grahps show all the data and show them
consistently.


And of course I did the normal changes to Nagios like:

process_performance_data=1
service_perfdata_command=process-service-perfdata


If anyone feels like taking these notes and adding them to documentation:
Please do.

Hugo.

-- 
	I hate duplicates. Just reply to the relevant mailinglist.
	hvdkooij at vanderkooij.org		http://hvdkooij.xs4all.nl/
		Don't meddle in the affairs of magicians,
		for they are subtle and quick to anger.


-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null