Dan,
As I understand it, the issue is less about Nagios and more about npcd.
Nagios merrily produces the perfdata files and then npcd comes along and scoops
them up, but as it's processing them it's opening a lot of rrd files and
inserting data into them. So really it's npcd that's the problem. Well, not
really a problem, but ultimately it's doing its thing and then Nagios gets less
than a fair share of the box's I/O. It's not that it's horrible right now,
but we're starting to notice it and I would tend to be concerned about scaling
problems.
Honestly even with Nagios 3, it seems like Nagios' own I/O is entirely
manageable so far with strategic use of ram disk. It's just putting Nagios
and PNP4Nagios (plus Apache to serve up the graph contents which I'm also not
happen going on on the same server) on the same boxes that I don't like.
Hmm. I was unaware that rrdcached could be configured to receive data over the
network. I'm assuming that means that npcd can be configured to send. I'll
check that out. Still doesn't feel like an elegant solution, but it may fit
the bill.
Thanks
Mark
From: Daniel Wittenberg [mailto:daniel.wittenberg.r...@statefarm.com]
Sent: Wednesday, October 03, 2012 11:08 AM
To: Nagios Users List
Subject: Re: [Nagios-users] solutions for off-server PNP4Nagios perfdata
processing?
You might consider looking at 4.0 since disk i/o is almost nothing, but short
of that looked at using rrdcache to send the processing to another server?
Dan
On Oct 3, 2012, at 9:33 AM, Frost, Mark {BIS} wrote:
Hello. Has anyone come up with solutions for processing Nagios performance
data on a server other than a Nagios server? We've been processing perfdata
results on our Nagios server(s) for a while now and increasingly it's just
eating up too much I/O to make me comfortable.
Yes, we do use rrdcached and yes, I realize that shuffling data around on
different disk spindles and controllers would help, but in today's world where
companies don't like building any kind of physical server let alone one with
all that additional hardware, that's not entirely an option for us.
I realize that once the perfdata files are on the dedicated graphing server(s),
processing them into RRD files there should be a no-brainer. My problem is
figuring out how to get them there without say, using a NAS device. (If I/O's
a problem locally, I don't want to shuffle that I/O to an even slower network
device).
It would be ideal if somehow there was a process that I could just send that
data to and have it picked up remotely. Like if maybe Merlin have a special
kind of peer that just received a stream of perfdata or something. Anything
else I could imagine would be some kind of home-grown solution like say pumping
events into a messaging system from the Nagios server(s) and then letting the
graphing server pick them up from the message queue(s). I could also imagine
some kind of fancy-pants module in Nagios 4 that did something like this, maybe.
Any thoughts would be appreciated.
Thanks
Mark
------------------------------------------------------------------------------
Don't let slow site performance ruin your business. Deploy New Relic APM
Deploy New Relic app performance management and know exactly
what is happening inside your Ruby, Python, PHP, Java, and .NET app
Try New Relic at no cost today and get our sweet Data Nerd shirt too!
http://p.sf.net/sfu/newrelic-dev2dev_______________________________________________
Nagios-users mailing list
Nagios-users@lists.sourceforge.net<mailto:Nagios-users@lists.sourceforge.net>
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting
any issue.
::: Messages without supporting info will risk being sent to /dev/null
------------------------------------------------------------------------------
Don't let slow site performance ruin your business. Deploy New Relic APM
Deploy New Relic app performance management and know exactly
what is happening inside your Ruby, Python, PHP, Java, and .NET app
Try New Relic at no cost today and get our sweet Data Nerd shirt too!
http://p.sf.net/sfu/newrelic-dev2dev
_______________________________________________
Nagios-users mailing list
Nagios-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting
any issue.
::: Messages without supporting info will risk being sent to /dev/null
