[rrd-users] Re: Monitoring Spoolers

[Falko Zurell]

Hi Rob,

looks like like you simply forgot to print out the graph.

Try this:

rrdtool graph brisqck.gif DEF:mybrisqck=brisqck.rrd:brisqck:AVERAGE \
LINE2:mybrisqck#FF0000:"Printer"

In your command you specified a Datasource but didn't printed anything out.
See the rrdtool graph help on www.rrdtool.org

kind regards
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----- Original Message -----
From: "Rob Ford" <r.ford at pindar.com>
To: <rrd-users at list.ee.ethz.ch>
Sent: Tuesday, January 15, 2002 1:05 PM
Subject: [rrd-users] Monitoring Spoolers


>
> Can anyone help with the following problem:
>
> All I need to monitor is a spooler i.e. so many files go in and out of it
throughout the day/night.  About a year ago I used MRTG to perform this
task, but I now require the extra graphical functions of RRD.  I found MRTG
fairly straight forward, but unfortunately RRD has proved to be alot more
tricky.
>
> Having read through the tutorials and mailing-archives, I created my
database as follows:
>
> rrdtool create brisqck.rrd -s 60 DS:brisqck:ABSOLUTE:60:0:200
RRA:AVERAGE:0.5:1:6000
>
> I then wrote a perl script that ran every min on a crontab that updated
the database using the following command:
>
> rrdtool update brisqck.rrd N:value
>
> If I try and retrieve any information using fetch this is what I get back:
>
> rrdtool fetch brisqck.rrd AVERAGE
>
> sample.......
>
> 1011007800: 1.0000000000e+00
> 1011008100: 1.0000000000e+00
> 1011008400: 1.1966666667e+00
> 1011008700: 1.1933333333e+00
> 1011009000: 2.5966666667e+00
> 1011009300: 2.0100000000e+00
> 1011009600: 1.0000000000e+00
> 1011009900: 2.0000000000e+00
> 1011010200: 1.2033333333e+00
> 1011010500: 1.0000000000e+00
> 1011010800: 2.0166666667e+00
> 1011011100: 1.3933333333e+00
> 1011011400: 1.2000000000e+00
> 1011011700: 1.0000000000e+00
> 1011012000: 1.3966666667e+00
>
> When I try an generate a graph from this I get:
>
> rrdtool graph brisqck.gif DEF:mybrisqck=brisqck.rrd:brisqck:AVERAGE
> 0x0
>
> When I ran through the examples in the tutorial everything seemed to run
ok and all the example graphs seemed to generate without any problems.  I am
running RRD on Solaris 8 on a SUN Ultra5.
> It could be something really obvious that I have missed, but any help
anyone could give me would be greatly appreciated.
>
> Regards
>
> Rob Ford
>
>
>
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