[mrtg] MRTG not updating RRD files

Dean, Mike mdean at landstar.com
Wed Mar 7 21:52:40 CET 2007

No go on those (thanks though):

Permissions are set correctly, I setup RRD to run as a specific user and
group and that user has rw permissions.  Also checked 
with an invalid OID and it is logging to the correct log file. 

I'm also out of ideas for trouble shooting.  I've also verified that the
system is sending the SNMP information to the switch and the switch is
receiving it.

-----Original Message-----
From: Stuart Kendrick [mailto:skendric at fhcrc.org] 
Sent: Wednesday, March 07, 2007 3:37 PM
To: Dean, Mike
Cc: mrtg at lists.oetiker.ch
Subject: Re: [mrtg] MRTG not updating RRD files

permissions on the RRD files set to 666?

change the OID you are monitoring to something which doesn't exist ... 
that should generate errors in the log file ... this exercise just 
proves that you're looking at the right log file

change the OID to something else which you are successfully monitoring 
elsewhere, see if that changes behavior

i'm stabbing here ... trying to come up with a way to trouble-shoot 
this, rather than explain how it could be happening


stuart kendrick

Dean, Mike wrote:
> I've been running MRTG on two separate systems with each running the
> config files for systems that were local to their network.  Yesterday,
> moved everything to a single system and all device RRD files are being
> updated as they should except for one set of files.  Regardless of
> I do, the RRD files will no be updated by MRTG.  MRTG is running and
> no giving any system errors, and running any of the configuration
> by themselves (non daemon) does not produce any errors either.
> All of the systems are being updated via a DS3 WAN connection that
> at about 10mbps (plenty of room left) and two of the devices in
> are Catalyst 6513s with more than 200 interfaces each.  
> If I remove the RRD files, MRTG will create new ones; however, after
> their initial creation, the RRD files never get updated.  All other
> devices, including other devices being updated over the same DS3 are
> being updated correctly.
> System Information
> Mandrake Linux (kernel 2.4.22-10mdk)
> MRTG, v2.15.0 
> RRDTool, v1.2.11
> Frontend: routers.cgi, v2.16
> Thanks, in advance!
> Mike
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