[Xymon] Setting Xymon up for redundancy/HA

[Root, Paul]

Not sure about historical data and keeping that in sync. But I used to run 2 servers side by side. I would use rdist to copy the bb-hosts and hobbit-alerts.cfg, etc in sync.

The second server, actually kept the first serves hobbit-alerts.cfg file in a holding tank.  No it's alerts file had one alert, and that was for the first one. If the first went down, it would run a script that would copy the alerts file in place, thus making it the primary. In that alerts file, there is a rule that looks for recovery of the first server, and when that happens, a script is run that copies the backup alert file back in place.

Easy.

This question was posted a couple months ago. Check the archives. I'm pretty sure I posted the scripts.

Paul.


Paul Root
Lead Internet Systems Eng
CenturyLink
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf Of Carl Melgaard
Sent: Thursday, May 12, 2011 2:47 AM
To: 'xymon at xymon.com'
Subject: [Xymon] Setting Xymon up for redundancy/HA

Hi,

Im curious how you guys have achieved to setup Xymon for HA/redundancy - so that you can do maintenance etc. on 1 Xymon server, and still keep monitoring hosts with the other.

I've looked at the different approaches in the "Administration Guide", but they all have pros and cons and some are rather complex.

The goals I have: Being able to keep monitoring with 1 xymon server down - have all data etc. sync'ed between the 2 xymon servers, so I don't miss out on historic data - don't get double notifications/alerts - easy administration.

We currently have 4 data centres, spread around on different locations - one possibility would be to have 1 xymon server in each data centre, with the local hosts reporting in to that server, but how do I keep on monitoring those hosts, if the local xymon server crashes?

Hope you can answer some of my questions.


Regards,
Carl Melgaard

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