Manual Reference Pages - MRTG-SQUID (1)
mrtg-squid - using mrtg to monitor Squid
Squid 2.3 knows SNMP and you can therefore use mrtg to
monitor it quite easily.
I have made some modifications to mrtg which simplify this.
My work is based on earlier modification made by:
email@example.com and firstname.lastname@example.org.
I added new code for displaying correct units to the
previous patches perminute and perhour (option tokens),
which allows other measurement in addition to persecond.
Then I created a new option token dorelpercent which
allows the calculation of the percentage of IN-stream / OUT-stream on
the fly and then displays it on a fixed scale from 0% to 100%. For my
requirements, this does good work. Maybe someone wants a floating
scale. It should not be a problem to implement it, too (but
give me an option to keep my fixed scale). If IN-stream is always
less than OUT-stream both lines (OUT-stream and relative percent)
are always displayed on top of IN-stream bulk. Otherwise this
option makes no sense. With this option you can display hitrates,
errorrates (for router monitoring: rel. droprates) easily now.
If you use this options please consider that you need a 5th
colourname/value pair in your Colours statements!
Due to some discussion on this list, I have implemented two
kilo and kMG
kilo should contain the value of k (1000 or 1024), where 1000 is the
kMG is a comma separated list of multiplier prefixes, used
instead of ", k, M, G, T" on the MRTG display. Leave the
place free, if you want no prefix.
Also an incomplete list of OIDs for the new SQUID release is
You may need to turn on snmp_port in squid.conf to as it is disabled by default.
I hope you enjoy it.
First load the squid mib
You can measure responsetimes in ms and display it with MRTG
You can display now MB/s as 1024*1024 B/s with:
Assuming youre not running squids SNMP on the default snmp port, you need
to include a port number in your target line:
A sample config for squid:
Title[proxy-hit]: HTTP Hits
PageTop[proxy-hit]: <H2>proxy Cache Statistics: HTTP Hits / Requests</H2>
LegendI[proxy-hit]: HTTP hits
LegendO[proxy-hit]: HTTP requests
Legend1[proxy-hit]: HTTP hits
Legend2[proxy-hit]: HTTP requests
Options[proxy-hit]: nopercent, perminute, dorelpercent
Title[proxy-srvkbinout]: Cache Server Traffic In / Out
PageTop[proxy-srvkbinout]: <H2>Cache Statistics: Server traffic volume (In/Out) </H2>
LegendI[proxy-srvkbinout]: Traffic In
LegendO[proxy-srvkbinout]: Traffic Out
Legend1[proxy-srvkbinout]: Traffic In
Legend2[proxy-srvkbinout]: Traffic Out
YLegend[proxy-srvkbinout]: per minute
Options[proxy-srvkbinout]: nopercent, perminute
Andreas Papst <email@example.com>
Dirk-Lueder Kreie <firstname.lastname@example.org>
Chris Chiappa <email@example.com>
|2.17.4 ||MRTG-SQUID (1) ||2012-01-12 |
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