Final stage of getting MRTG working with Nagios v2

Greg Pangrazio pangrazi at gmail.com
Mon Nov 16 15:11:35 CET 2009


I may be wrong here but i thought you had to point the check_mrtg to a rrd
file and not the rrdtool log file.


Greg Pangrazio
pangrazi at gmail.com




On Sun, Nov 15, 2009 at 8:24 PM, AJay <ajay at wxsec.com> wrote:

> Your mrtg is probably not working correctly, check you mrtg.cfg and
> /var/spool/mail/root to see what's going on with mrtg.
>
>  ------------------
>  AJay
>
>
>
>  ------------------ Original ------------------
>  *From: * "xmanhosting"<anthony at xmanhosting.com.au>;
> *Date: * Sat, Nov 14, 2009 12:27 PM
> *To: * "nagios-users"<nagios-users at lists.sourceforge.net>;
>  *Subject: * [Nagios-users] Final stage of getting MRTG working with
> Nagios v2
>
> Hello,
>
> I have been fluffing around with Nagios for a couple of weeks, and have
> nearly finally nailed it.
>
> I just have one thing to go.
>
> I am trying to get MRTG to work with Nagios.
>
> I have got MRGT working locally on my machine , and can see it working bygoing to these 2 sites  (locally)
>  in a browser:
>
> file:///usr/local/mrtg-2/share/mrtg2/icons/index.html<http://m33.mail.qq.com/cgi-bin/frame_html?sid=6AuAxsNrmrW1bmsg&r=31ef6d4e0997510a3066d059ab83e370#> and
>
>
> file:///usr/local/mrtg-2/share/mrtg2/icons/localhost_2.html<http://m33.mail.qq.com/cgi-bin/frame_html?sid=6AuAxsNrmrW1bmsg&r=31ef6d4e0997510a3066d059ab83e370#>
>
> I followed the tutorial below to set up my router with Nagios:
>
>
> http://www.thegeekstuff.com/2008/11/how-to-monitor-network-switch-and-ports-using-nagios/
>
> however I am yet to get MRTG working with Nagios:
>
> PING OK 11-14-2009 13:13:56 21d 16h 10m 13s 1/3 PING OK - Packet loss = 0%,
> RTA = 1.38 ms
> Port 1 Bandwidth Usage UNKNOWN 11-14-2009 13:09:49 21d 16h 8m 43s 3/3 *check_mrtgtraf:
> Unable to open MRTG log file*
> Port 1 Link Status OK 11-14-2009 13:11:29 12d 22h 37m 5s 1/3 SNMP OK -
> up(1)
> Uptime OK 11-14-2009 13:10:29 12d 22h 27m 57s 1/3 SNMP OK - Timeticks:
> (152738042) 17 days, 16:16:20.42
>
> My switch.cfg currently has the following:
>
> # Monitor bandwidth via MRTG logs
> define service{
> use     generic-service ; Inherit values from a template
> host_name    Billion
> service_description   Port 1 Bandwidth Usage
> check_command    *
> check_local_mrtgtraf!/usr/local/mrtg-2/share/mrtg2/icons/localhost2.log!AVG!1000000,1000000!5000000,5000000!10
> *
> }
>
> My localhost2.log is at the location above: *
> /usr/local/mrtg-2/share/mrtg2/icons/localhost2.log* ,however I still must
> have something wrong for it to not work.
>
> When I run: /usr/local/nagios/bin/nagios -v
> /usr/local/nagios/etc/nagios.cfg , it says: "*Things look okay - No
> serious problems were detected during the pre-flight check*"
>
> When I run: /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg , it says:
>
> -----------------------------------------------------------------------
> ERROR: Mrtg will most likely not work properly when the environment
>        variable LANG is set to UTF-8. Please run mrtg in an environment
>        where this is not the case. Try the following command to start:
>
>        env LANG=C /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
> -----------------------------------------------------------------------
>
> When I run: env LANG=C /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
> , there are no errors.
>
> Does anyone know what I am still doing wrong
>
> Thanks for any help,
>
> Kind regards,
> Anthony
>
>
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> ::: Please include Nagios version, plugin version (-v) and OS when
> reporting any issue.
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