MRTG-SQUID(1)                  mrtg                 MRTG-SQUID(1)



NNAAMMEE
       mrtg-squid - using mrtg to monitor Squid

DDEESSCCRRIIPPTTIIOONN
       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.

MMOODDIIFFIICCAATTIIOONNSS
       I added new code for displaying correct units to the pre-
       vious 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 dis-
       play 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 dis-
       play. 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.

CCOONNFFIIGG EEXXAAMMPPLLEE
       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

AAUUTTHHOORR
       Andreas Papst <andreas.papst@univie.ac.at> Dirk-Lder Kreie
       <deelkar@gmx.de>



2.12.1                      2005-05-16              MRTG-SQUID(1)
