SQUID(1)                       mrtg                      SQUID(1)



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       squid - using mrtg to monitor Squid

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       Squid 2.x knows SNMP and you can therfore use mrtg to mon-
       itore is 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.

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       So I have add new code for displaying correct units to the
       previous patches "perminute" and "perhour" ("option"
       tokens), which allow to mesure not only per second.

       Then I have created a new option token "dorelpercent",
       which allows to caclulate the percentage of IN-stream /
       OUT-stream on the fly and display 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 then 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 dis-
       play. Leave the place free, if you want no prefix.

       Also a not complete list of OIDs for the new SQUID release
       is added.

       I hope you enjoy it.

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       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&cacheClientHttpRequests: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


AAAAUUUUTTTTHHHHOOOORRRR
       Andreas Papst <andreas.papst@univie.ac.at>



2002-05-31                    2.9.18                     SQUID(1)
