[ILUG] system monitoring and logging s/w

[Ray Kelly]

"McAuley, Tim" wrote:
> Hmmm... already use that for network monitoring the cisco router here.
> 
> Not sure if it'll give me enough information, and then there's the overhead
> of using snmp. These servers are being tested for system that will throttle
> them! So they need to be streamlined as much as possible.
> 
> Might see what I get with MRTG though.

MRTG is a wonderful little tool but I've seen a "slightly" misconfigured
cfg file (read overzealous) completely murder a non slouch of a server 
in the past! So be wary of how much you're recording if you use that.

RRDtool might be a better option especially if you're trying to cut 
down the resources actually used by the monitoring process, in that 
it won't actually update the the images of the graphs until whatever 
frontend you're using to view the results is called. 

There's a rather cute little module called sysstats 
(http://sourceforge.net/projects/webminstats) avaliable for webmin which 
uses rrdtool to gather it's data. try using some of the scripts there
as a starting point. potentially you could even use a webserver on a 
seperate system & nfs to update the graphs as a means of taking load 
away from the box(en) your monitoring, though be wary as this could 
be a double edged sword.

mise le meas 

	Ray ...