[rrd-users] Re: How to change the samples collection time?

[Alex van den Bogaerdt]

=?iso-8859-1?q?Michael=20Chan?= wrote:

> > > 
> > > rrdtool create router.rrd --step 900 \
> > > DS:ifInOctets:COUNTER:600:U:U \
> > > DS:ifOutOctets:COUNTER:600:U:U \
> >                         ^^^^^
> > Look up the meaning of heartbeat.  You didn't
> > understand or you
> > overlooked it.
> 
> oic...However, I still cannot get any data even
> through I change it to 1800 which is larger than the
> step value :<  (BTW, how to judge how large the heart
> beat is?)

I assume you changed the heartbeat value using rrdtool tune?

You can verify the current settings using rrdtool info.

It is not necessary to have a heartbeat which is larger than the
step time.  What is important is that you send updates into RRDtool
before the heartbeat timer expires.

If you have more problems, repost useful information (to the list)
as there may be another problem that I didn't spot.

cheers,
-- 
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