nanog mailing list archives

Re: Graph Utils (Open-Source)


From: Max <perldork () webwizarddesign com>
Date: Sat, 19 Feb 2011 20:22:21 -0500

Even with rrdcached, the I/O from many RRD files being updated often
will hammer the I/O subsydtem of most hosts :)

We have a host with around 50k RRD data files and rrdcached running,
most are updated every 5 mins, some every minute (Nagios + PNP) - with
RAID 10 and 10k rpm disks the io wait on the system hangs out at about
15-20 pct, while load hangs around 1-2.

I like rrd a lot but scaling it is hard.

Max

On 2/19/11, Rene Skjoldmose <rene.skjoldmose () gmail com> wrote:
On 2011-02-18 22:03, Max Pierson wrote:
Nothing at all :)    My problem is with rrdtool. It doesn't scale for this
project. I was looking into GNUplot, but wanted to see what else was out
there as well.
Is scaling of rrdtool still a problem for you with rrdcached?
http://oss.oetiker.ch/rrdtool/doc/rrdcached.en.html

Cheers,
René




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