Netsaint to Nagios

[Tom DE BLENDE]

Thanks for this extensive reply. If it can be done on one day, then I
might just consider doing the shift to Nagios. I'm thinking of
installing Nagios next to Netsaint, but running it in passive mode
until I do the actual migration. That seems like a valid path to me.

Stanley Hopcroft wrote:
> 
> Dear Sir,
> 
> I am writing to thank you for your letter and say,
> 
> On Tue, Dec 03, 2002 at 08:48:49AM +0100, Tom DE BLENDE wrote:
> > Hi,
> >
> > Since Nagios is stable now (yeah, yeah, I know it is for a while now.)
> 
> - not all that long 24/11/2002
> 
> > I would like to have a closer look at it. Is there any risk in
> > installing it on the same box Netsaint is running on?
> >
> 
> Here are some thoughts and observations :-
> 
> 0 I too hummed and hawed over this until realising that all the action
> is happening with Nagios.
> 
> 'Upcoming' sounds wonderful ( http://www.nagios.org/upcoming.php )
> 
> For example, the quoted argument patch for embedded Perl has
> already been committed to Nagios. It won't be for Netsaint (
> http://www.nagios.org/faqs/viewfaq.php?faq_id=90 )
> 
> 1 Fine to have Netsaint and Nagios on the same box subject to the box
> tolerating the load of two (2) Netsaint processes (in my _limited_
> experience Nagios seems to have a load average of 5-10% less than
> Netsaint)
> 
> 2 However,
> 
> . you may have non standard plugins with embedded paths in them (Tsk
> tsk) - for storing state information etc
> 
> . you may  do checks with Netsaint by ssh so you'll have to add a nagios
> user to those boxes you want to check by ssh and make sure that the
> nagios user home directory has the same .ssh as the Netsaint user
> 
> . you probably want to adopt the new template configuration method
> (although you probably can run Nagios - if you configure it
> appropriately - to use your Netsaint stuff).
> 
> You may find  http://www.nagios.org/faqs/viewfaq.php?faq_id=89 useful (I
> converted semi automatically by other means. It took me far too long so
> this may be better. However, it's worth being aware of what the
> templates offer at
> 
> http://nagios.sourceforge.net/docs/1_0/xodtemplate.html
> 
> . Some things, even at an early stage, are obviously better  eg
> 
>  - rescheduling a check (instead of force an immediate check) is a means
> of having Nagios run a check when you want it to run.
> 
> This is handy for RRD updates that expect data to arrive at the DS
> update interval (otherwise the numbers look funny because the DS is
> updated with interpolated values).
> 
>  - the availability CGI looks better (to me)
> 
>  - the extinfo CGI looks better (to me). Having the summary availability
> info was not actually useful (more of a liability if you are reporting
> across some interval, because you would have to reset the status.log to
> reset the stats)
> 
> . If it's not obvious, you can change the Alias and ScriptAlias
> directives in Apache to reduce the impact on Netsaint bookmarks (most of
> my colleagues are still browsing http://some_host/netsaint/ after
> adding
> 
>     ScriptAlias /cgi-bin/netsaint/ "/usr/local/nagios/sbin/"
> 
>     Alias /netsaint/ "/usr/local/nagios/share/" ).
> 
> To sum up, I made the change in about a day for a small site with ~200
> hosts and ~325 checks.
> 
> > Kind regards,
> > Tom
> >
> 
> Enjoy.
> 
> Yours sincerely.
> --
> ------------------------------------------------------------------------
> Stanley Hopcroft
> ------------------------------------------------------------------------
> 
> '...No man is an island, entire of itself; every man is a piece of the
> continent, a part of the main. If a clod be washed away by the sea,
> Europe is the less, as well as if a promontory were, as well as if a
> manor of thy friend's or of thine own were. Any man's death diminishes
> me, because I am involved in mankind; and therefore never send to know
> for whom the bell tolls; it tolls for thee...'
> 
> from Meditation 17, J Donne.
> 
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