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

mrtg-squid - using mrtg to monitor Squid

D?DE?ES?SC?CR?RI?IP?PT?TI?IO?ON?N

       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.

M?MO?OD?DI?IF?FI?IC?CA?AT?TI?IO?ON?NS?S

       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.

       You may need to turn on snmp_port in squid.conf to as it is disabled by

       default.

       I hope you enjoy it.

C?CO?ON?NF?FI?IG?G E?EX?XA?AM?MP?PL?LE?E

       First load the squid mib

        LoadMIBs: /usr/share/squid/mib.txt

       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

       Assuming you're not running squid's SNMP on the default snmp port, you

       need to include a port number in your target line:

        Target[proxy-hit]: cacheHttpHits&cacheProtoClientHttpRequests:public@localhost:3401

       A sample config for squid:

        Target[proxy-hit]: cacheHttpHits&cacheProtoClientHttpRequests:public@proxy

        Title[proxy-hit]: HTTP Hits

        PageTop[proxy-hit]: 
proxy Cache Statistics: HTTP Hits / Requests

        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]: 
Cache Statistics: Server traffic volume (In/Out) 

        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

A?AU?UT?TH?HO?OR?R

       Andreas Papst <andreas.papst@univie.ac.at> Dirk-LXder Kreie

       <deelkar@gmx.de> Chris Chiappa <chris+debian@chiappa.net>

2.17.7                            2018-07-13                     MRTG-SQUID(1)