Re: [hobbit] Xymon 4.3.0: Beta version available on Sourceforge

[Henrik Størner <henrik (at) hswn.dk>]

Hi Giovanni,

On Mon, Feb 09, 2009 at 07:21:43PM -0200, giovanni (at) redix.com.br wrote:
> 
> Hi Henrik,
> 
>    I was reading about 4.5 release and maybe its time to think about store
> the data into a Database like MySQL/PostgreSQL, if you do that far more
> contributors can start to colaborate with customs web-interfaces, reports,
> etc etc.

this subject comes up once in a while. I have two problems with it:


1) I've never done any programming that interfaces to a database, so
it would mean digging into one more API - but that is something I
could probably handle.

2) The real problem is that unless the database is co-located with the
Xymon server, then your monitoring suddenly becomes dependant on 
a remote database-server. So what happens if your database server loses
the network connection to the Xymon server ? You won't get any alerts
from Xymon, because it has no data available to generate alerts from.


It's the same reason that has kept me from using SAN storage for my
production Xymon server at work. Much too complex for my taste, far
too many ways it can break.

And the time when you need your Xymon server the most is *exactly*
when everything else has gone down in flames.


What I *would* consider is to create a module like the hobbitd_filestore
module, except it sends the status-data off to a database somewhere.
Or even an external module for hobbitd_rrd that gets all of the 
parsed data we collect and use as the basis of all of the graphs.
Such modules would be very easy to write for someone who knows how
to do programming with the database API - my guess is that it wouldn't 
take more than a day or two.

So if you know someone who could voluteer for such an add-on, I would
be very happy to work together with him/her on putting such an add-on
together.


Regards,
Henrik