[rrd-users] Re: RRDTool graphs: various questions
Alex van den Bogaerdt
alex at ergens.op.het.net
Thu May 27 13:57:09 MEST 2004
On Thu, May 27, 2004 at 11:08:24AM +0100, John Murdoch wrote:
> This does seem logical... but my other, more granular data is in a 15 min (--step 900) RRD, so updating at noon-only is impossible if I stay with the same RRD. :( I am guessing this is the cause of why MIN/MAX points are represented as continuous lines for the whole day. Should I construct a seperate RRD to hold the noon-based data? (see below for my DS/RRD layout)
I have a database with a one-second granularity. I sometimes update
this database twice a day. No problem. Just make sure heartbeat
> > > 2) Is it possible to plot two RRAs using the same consolidation function, but with differing steps/rows, on the same graph? I'd like to plot two RRA AVERAGEs of varying granularity on the same graph, but I can't seem to do this.
> > There's no problem whatsoever to do this AFAIK.
> Hmmm... this is puzzling me (using RRDtool 1.0.47). I've tried plotting the two different AVERAGES, but rrdtool graph seems to just pick the most relevant to the timescale and plots that twice. Here's my RRD layout (every 15 mins for 3 years):
> "DS:users:GAUGE:1700:0:U", "RRA:AVERAGE:0.5:1:105120", "RRA:AVERAGE:0.75:96:1095", "RRA:MIN:0.75:96:1095", "RRA:MAX:0.75:96:1095"
OK, when you try to fetch the RRAs from the same RRD it will currently fail.
You _can_ graph data from different RRAs on the same graph. In order to
aquire the data you need to fetch them from different RRDs.
But make sure you test this before you rely on what I say.
I ask you to respect any "Reply-To" and "Mail-Follow-Up" headers. If
you reply to me off-list, you'd better tell me you're doing so. If
you don't, and if I reply to the list, that's your problem, not mine.
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help mailto:rrd-users-request at list.ee.ethz.ch?subject=help
More information about the rrd-users