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mrtg-squid

Langue: en

Version: 2010-01-20 (ubuntu - 24/10/10)

Section: 1 (Commandes utilisateur)

NAME

mrtg-squid - using mrtg to monitor Squid

DESCRIPTION

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: matija.grabnar@arnes.si and kostas@nlanr.net.

MODIFICATIONS

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 tokens too:

``kilo'' and ``kMG''

``kilo'' should contain the value of k (1000 or 1024), where 1000 is the default.

``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 added.

I hope you enjoy it.

CONFIG EXAMPLE

You can measure responsetimes in ms and display it with MRTG correctly with:
  kMG[measure-ms]: m,,k,M,G,T
  short[measure-ms]: s
 
 

You can display now MB/s as 1024*1024 B/s with:

  kilo[volume]: 1024
 
 

A sample config for squid:

  Target[proxy-hit]: cacheHttpHits&cacheProtoClientHttpRequests:public@proxy
  Title[proxy-hit]: HTTP Hits
  PageTop[proxy-hit]: <H2>proxy Cache Statistics: HTTP Hits / Requests</H2>
  Suppress[proxy-hit]: y
  LegendI[proxy-hit]:  HTTP hits
  LegendO[proxy-hit]:  HTTP requests
  Legend1[proxy-hit]:  HTTP hits
  Legend2[proxy-hit]:  HTTP requests
  YLegend[proxy-hit]: perminute
  ShortLegend[proxy-hit]: req/min
  Options[proxy-hit]: nopercent, perminute, dorelpercent
 
  Target[proxy-srvkbinout]: cacheServerInKb&cacheServerOutKb:public@proxy
  Title[proxy-srvkbinout]: Cache Server Traffic In / Out
  PageTop[proxy-srvkbinout]: <H2>Cache Statistics: Server traffic volume (In/Out) </H2>
  Suppress[proxy-srvkbinout]: y
  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
  ShortLegend[proxy-srvkbinout]: b/min
  kMG[proxy-srvkbinout]: k,M,G,T
  kilo[proxy-srvkbinout]: 1024
  Options[proxy-srvkbinout]: nopercent, perminute
 
 

AUTHOR

Andreas Papst <andreas.papst@univie.ac.at> Dirk-Lu.der Kreie <deelkar@gmx.de>
Toi, qui me lis, es-tu sûr de comprendre ma langue ?
-+- Jorge Luis Borges (1899-1986), La bibliothèque de Babel -+-