performance data from plugins - does it exist?

[atonns at mail.ivillage.com]

Since I started this thread...

Another thing to consider is what metrics to measure / keep?
For example, a 3rd party monitoring service we use here keeps statistics on
these metrics for HTTP:

 DNS Lookup Time
 Connection Time 
 First Byte 
 Content Download 
 Redirect time 

Given, not all of it is relevant to HTTP, but it is all relevant to "user
experience".
But that's not the point. The point is that if there is going to be a system
for collecting performance metrics, it should allow for a custom levels of
verbosity. In an example:

check_http -w 3 -c 8 -Pdcf www.nagios.org

would yield performance data for dns lookup (d), connection time (c) and
time to first byte (f) while

check_http -w 3 -c 8 -Pcl www.nagios.org

would yield performance data for connection time (c) and content download
time (l).

Finally, although nagios is only in a test phase here at my office, I would
be interested in assisting with plugin modifications for performance data
collection. I have already written a plugin (without performance data
collection) that checks disk space for arbitrary partitions (ie:
--path=/usr) using the net-snmp host resources mib via Net::SNMP and perl.

I supect this conversation should be moved to nagiosplug-devel at this
point...

--
"Computer science is as much about computers as
        astronomy is about telescopes" -- Edsger Dijkstra
---------------------------------------------------------
Anthony Tonns, UNIX Administrator - atonns at mail.ivillage.com


-----Original Message-----
From: Daniel Wittenberg [mailto:daniel-wittenberg at uiowa.edu]
Sent: Thursday, September 12, 2002 12:45 PM
To: Thomas
Cc: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] performance data from plugins - does it
exist?


The only part I worry about is the "modify source code from plugins". 
Not that I mind doing the coding, but if we do, just want to make sure
these changes can be committed so it doesn't have to be re-done at every
version.

Dan

On Thu, 2002-09-12 at 11:41, Thomas wrote:
> hi,
> 
> Ok, I'm going in, just let me a week to finish some important job, than 
> I will work with you to put an rrdtool into nagios
> It would be cool to do a howto for the others who will want to put 
> performance graph into their nagios... sure when it will be finished ;)
> So to sumup,
> - put good infos in the file (means perhaps modify source code from
plugins)
> - extract them to put into rrdtool
> - find a way to integrate them for each host (urlize or in extinfo ...)
> - test & test
> - do a howto
> 
> Excuse me, but I'm a bit "speed" today, I got some important work, I 
> hope you understand my bad english
> 
> Bye
> Tom



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