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No graph from RRD data

list Jason Altrincham Jones
Wed, 22 Nov 2006 14:49:00 -0000
Message-Id: <user-256cc3273da4@xymon.invalid>

" No graph on the status page, but OK on the trends page

Make sure you have ncv listed in the GRAPHS setting in hobbitserver.cfg.
(Don't ask why - just take my word that it must be there)."
?
Jason.

-----Original Message-----
From: user-82d5dfad5b5f@xymon.invalid [mailto:user-82d5dfad5b5f@xymon.invalid] 
Sent: 22 November 2006 12:47
To: user-ae9b8668bcde@xymon.invalid
Subject: RE: [hobbit] No graph from RRD data

Great!
Now the rrd file has the right type and the data shows up in the graph,
but graph is showed on the trends page only.

My hobbitserver.cfg:
TEST2RRD="cpu=la,disk,...,usage=ncv"
NCV_usage="usage:GAUGE"
GRAPHS="la,disk,...,usage"

How can I get the graph on the status page from the "usage" test?

Johan

-----Original Message-----
From: Henrik Stoerner [mailto:user-ce4a2c883f75@xymon.invalid]
Sent: woensdag 22 november 2006 12:58
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] No graph from RRD data


On Wed, Nov 22, 2006 at 09:40:36AM +0100, user-82d5dfad5b5f@xymon.invalid wrote:
NCV_usage="usage:GAUGE"
        <ds>
                <name> usage </name>
                <type> DERIVE </type>
These don't match. I guess your Hobbit created the rrd file using the
default DERIVE datatype, before you remembered to put in the NCV_usage
setting. That's why your graph stays at 0 - DERIVE tracks changes,
whereas GAUGE tracks absolute values.

Make sure that hobbitd_rrd has been restarted after you changed the
NCV_usage setting. Then delete the rrd file; the next time Hobbit
creates it it should have the correct dataset type, and your graph
should start showing the values you expect.


Henrik