[rrd-users] RRDTOOL and MRTG on LInux 5

Nabil BouDiab mr_bou at yahoo.com
Sat Sep 19 16:16:19 CEST 2009

Thanks Steve,

How did you manage to fail over the MRTG processes? did you create your own monitoring agents? or used generic agents from linux HA?
i have recently reached a limitation on the number of monitored routers and my mrtg tools is crashing. is it safe to run two mrtg processes on the same instance each with a different cfg file?? or do i need to seperate them into different linux instances??


----- Original Message ----
From: Steve Shipway <s.shipway at auckland.ac.nz>
To: Nabil BouDiab <mr_bou at yahoo.com>; "rrd-users at lists.oetiker.ch" <rrd-users at lists.oetiker.ch>
Sent: Thursday, September 17, 2009 12:50:25 AM
Subject: RE: [rrd-users] RRDTOOL and MRTG on LInux 5

> - Is anyone running rrdtool and mrtg on linux 5.4 ?

Yes, we are (RHEL 5.3 just updated to 5.4)

> - anyone managed to integrate the MRTG process into a cluster? for
> automatic failover?

Yes, we have been doing this for more than 2 years.  We have 2 linux boxes linked with LinuxHA and a shared external SSA disk unit.  The filesystem, virtual IP and MRTG processes fail over between the two.  The 'non-active' server hosts our Nagios installation which fails over in the opposite direction.

In fact, we now have distributed MRTG as we monitor so many metrics, and have 2 such failover pairs and a single non-failover all linked into one big virtual frontend using the Routers2 distributed-MRTG features.



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