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<TITLE>RE: [Nagios-users] performance data from plugins - does it exist?</TITLE>
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<P><FONT SIZE=2>Since I started this thread...</FONT>
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<P><FONT SIZE=2>Another thing to consider is what metrics to measure / keep?</FONT>
<BR><FONT SIZE=2>For example, a 3rd party monitoring service we use here keeps statistics on these metrics for HTTP:</FONT>
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<P><FONT SIZE=2> DNS Lookup Time</FONT>
<BR><FONT SIZE=2> Connection Time </FONT>
<BR><FONT SIZE=2> First Byte </FONT>
<BR><FONT SIZE=2> Content Download </FONT>
<BR><FONT SIZE=2> Redirect time </FONT>
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<P><FONT SIZE=2>Given, not all of it is relevant to HTTP, but it is all relevant to "user experience".</FONT>
<BR><FONT SIZE=2>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:</FONT></P>
<P><FONT SIZE=2>check_http -w 3 -c 8 -Pdcf www.nagios.org</FONT>
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<P><FONT SIZE=2>would yield performance data for dns lookup (d), connection time (c) and time to first byte (f) while</FONT>
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<P><FONT SIZE=2>check_http -w 3 -c 8 -Pcl www.nagios.org</FONT>
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<P><FONT SIZE=2>would yield performance data for connection time (c) and content download time (l).</FONT>
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<P><FONT SIZE=2>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.</FONT></P>
<P><FONT SIZE=2>I supect this conversation should be moved to nagiosplug-devel at this point...</FONT>
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<P><FONT SIZE=2>--</FONT>
<BR><FONT SIZE=2>"Computer science is as much about computers as</FONT>
<BR><FONT SIZE=2> astronomy is about telescopes" -- Edsger Dijkstra</FONT>
<BR><FONT SIZE=2>---------------------------------------------------------</FONT>
<BR><FONT SIZE=2>Anthony Tonns, UNIX Administrator - atonns@mail.ivillage.com</FONT>
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<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Daniel Wittenberg [<A HREF="mailto:daniel-wittenberg@uiowa.edu">mailto:daniel-wittenberg@uiowa.edu</A>]</FONT>
<BR><FONT SIZE=2>Sent: Thursday, September 12, 2002 12:45 PM</FONT>
<BR><FONT SIZE=2>To: Thomas</FONT>
<BR><FONT SIZE=2>Cc: nagios-users@lists.sourceforge.net</FONT>
<BR><FONT SIZE=2>Subject: Re: [Nagios-users] performance data from plugins - does it</FONT>
<BR><FONT SIZE=2>exist?</FONT>
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<P><FONT SIZE=2>The only part I worry about is the "modify source code from plugins". </FONT>
<BR><FONT SIZE=2>Not that I mind doing the coding, but if we do, just want to make sure</FONT>
<BR><FONT SIZE=2>these changes can be committed so it doesn't have to be re-done at every</FONT>
<BR><FONT SIZE=2>version.</FONT>
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<P><FONT SIZE=2>Dan</FONT>
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<P><FONT SIZE=2>On Thu, 2002-09-12 at 11:41, Thomas wrote:</FONT>
<BR><FONT SIZE=2>> hi,</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Ok, I'm going in, just let me a week to finish some important job, than </FONT>
<BR><FONT SIZE=2>> I will work with you to put an rrdtool into nagios</FONT>
<BR><FONT SIZE=2>> It would be cool to do a howto for the others who will want to put </FONT>
<BR><FONT SIZE=2>> performance graph into their nagios... sure when it will be finished ;)</FONT>
<BR><FONT SIZE=2>> So to sumup,</FONT>
<BR><FONT SIZE=2>> - put good infos in the file (means perhaps modify source code from plugins)</FONT>
<BR><FONT SIZE=2>> - extract them to put into rrdtool</FONT>
<BR><FONT SIZE=2>> - find a way to integrate them for each host (urlize or in extinfo ...)</FONT>
<BR><FONT SIZE=2>> - test & test</FONT>
<BR><FONT SIZE=2>> - do a howto</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Excuse me, but I'm a bit "speed" today, I got some important work, I </FONT>
<BR><FONT SIZE=2>> hope you understand my bad english</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Bye</FONT>
<BR><FONT SIZE=2>> Tom</FONT>
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