[collectd] collectd versus rrdcollect-remote rrdtool [network] IO

[Florian Forster]

Hi Greg,

On Tue, Jan 20, 2009 at 10:26:19AM +0100, Greg wrote:
> Sorry, mispelled ? I would say that "my" collectd (my configuration of
> collectd) is not enough tuned for IO performance.

sorry, took this the wrong way :/

> > put into the files). It appears you have both tools running on the
> > same machine at the same time, so my guess is that rrdcollect is
> > killing the machine and collectd is not scheduled often enough,
> > leading to the UDP receive-buffer issue. Try increasing the
> > receive-buffer and restarting collectd:
> 
> I'm agree with this theory. I've increased those values, but it didn't
> help :

You restared collectd, right? You can check the current queue length
using something like that:
  netstat -ln | grep Recv-Q; while sleep 1; do netstat -ln | grep 25826; done

If the queue is always empty, the problem is somewhere else.

Can you tell me a bit more about the machine you're using and how many
RRD files you're updating? How much memory do you have? How many CPUs
are installed? And so on ;)

Regards,
-octo
-- 
Florian octo Forster
Hacker in training
GnuPG: 0x91523C3D
http://verplant.org/
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