[mrtg] mrtg error with mod_watch 3.18

Craig Metzer ucantspamthis at hotmail.com
Mon Jan 29 17:24:48 CET 2007


The error you're receiving indicates mod_watch.pl isn't returning data in 
the correct format.  Search for "External Monitoring Scripts" in the ref 


It seems to me that you'd have to modify the mod-watch script or write 
something else to parse it to return the four lines as defined above.

Hope this helps,

>From: Ethan Pierce <ethan.pierce at earthlink.net>
>To: mrtg at lists.oetiker.ch
>Subject: [mrtg] mrtg error with mod_watch 3.18
>Date: Mon, 29 Jan 2007 10:31:44 -0500
>Greetings MRTG list and thank you in advance for your
>I am using the latest stable MRTG v2.15.0 with no difficulties, its
>working great and I'm quite pleased with the results.  I was assigned a
>project of gathering traffic reports of all virtual domains hosted on a
>particular machine.  mod_watch seemed to be the only application that
>popped up in google, but apparently is not supported any longer/closed
>down by the developer.
>With a bit of searching, I found the appropriate mod_watch version to go
>with a 1.3 apache server and have it working as it's supposed to.
>When I call a domain.com/watch-info I get output like:
>www.domain.com 151082 0 155837158 20317 5168 1 2027.111 13141214
>ifName ifUptime ifInOctets ifOutOctets ifRequests ifDocuments ifActive
>This data gets pulled into mrtg from mrtg.cfg with lines for each
>virtualhost as follows:
>Title[www.domain.com]: www.domain.com Data Traffic
>Target[www.domain.com]: `/usr/local/sbin/mod_watch.pl
>MaxBytes[www.domain.com]: 1250000
>PageTop[www.domain.com]: <h2><a
>href="http://www.domain.com/">www.domain.com</a> Data Traffic</h2>
>Checking the mrtg.log, Im finding errors like this for domain.com:
>2007-01-29 10:20:09 -- 2007-01-29 10:20:08: ERROR:
>Target[www.domain.com][_IN_] ' $target->[13]{$mode} ' did not eval into
>defined data
>2007-01-29 10:20:09 -- 2007-01-29 10:20:08: ERROR:
>Target[www.domain.com][_OUT_] ' $target->[13]{$mode} ' did not eval into
>defined data
>Any ideas?
>Thank you kindly,
>mrtg mailing list
>mrtg at lists.oetiker.ch

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