[Xymon] Custom non-ncv graph

[Tomáš Wachtarczyk]

Hello,

I am struggling with displaying custom graph.

It should display volumegroups on host with VGSIZE, VGFREE and VGPRCT
(usage of VG)
Number of VG are not constant, it may differ.

So i am sending it as data and i can find rrd on xymon server.

TEST=*VG*

BBVGB=$(sudo /usr/sbin/vgs --units B --nosuffix --noheadings --aligned --o
vg_name,vg_size,vg_free)

while read VG VGSIZE VGFREE; do
VGPRCT=$(bc <<< "scale=2;100-(${VGFREE}/${VGSIZE}*100)")
DATA="${DATA}
[*VG2*,${VG}.rrd]
DS:vgsize:GAUGE:600:0:U ${VGSIZE}
DS:vgfree:GAUGE:600:0:U ${VGFREE}
DS:vgprct:GAUGE:600:0:100 ${VGPRCT}
"
done <<< "${BBVGB}"


It produce
[*VG2*,appvg.rrd]
DS:vgsize:GAUGE:600:0:U 314572800000
DS:vgfree:GAUGE:600:0:U 69130518528
DS:vgprct:GAUGE:600:0:100 75

[*VG2*,rootvg.rrd]
DS:vgsize:GAUGE:600:0:U 2472800000
DS:vgfree:GAUGE:600:0:U 430518528
DS:vgprct:GAUGE:600:0:100 97

Sending it to xymon server with
${XYMON} ${XYMSRV} "data ${MACHINE}.trends
${DATA}"

Data are delivered, i can dump rrd on xymonserver, seems to ok to me,
archive is filling up, but i am not able to display it on trends or GRAPH_
*VG*="*VG2*" page.

rrdttol dump *VG2*,appvg.rrd
        <ds>
                <name> vgsize </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> 0.0000000000e+00 </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> 314572800000 </last_ds>
                <value> 2.6109542400e+13 </value>
                <unknown_sec> 0 </unknown_sec>
        </ds>



I set it in xymonserver.cfg to TEST2RRD="....VG2"  (is it correct?) and
GRAPHS="...VG2"

I tried to define it also in graphs.cfg
[*VG2*]
        FNPATTERN VG2.(.+).rrd
        TITLE Volume group
        DEF:vgsize=@RRDFN@:vgsize:AVERAGE
        DEF:vgfree=@RRDFN@:vgfree:AVERAGE
        DEF:vgprct=@RRDFN@:vgprct:AVERAGE
        LINE1.5:p at RRDIDX@#@COLOR@:@RRDPARAM@
        GPRINT:vgsize:LAST: \: %5.1lf (cur)
        GPRINT:vgsize:MAX: \: %5.1lf (max)
        GPRINT:vgsize:MIN: \: %5.1lf (min)
        GPRINT:vgsize:AVERAGE: \: %5.1lf (avg)\n
        GPRINT:vgfree:LAST: \: %5.1lf (cur)
        GPRINT:vgfree:MAX: \: %5.1lf (max)
        GPRINT:vgfree:MIN: \: %5.1lf (min)
        GPRINT:vgfree:AVERAGE: \: %5.1lf (avg)\n
        GPRINT:vgprct:LAST: \: %5.1lf (cur)
        GPRINT:vgprct:MAX: \: %5.1lf (max)
        GPRINT:vgprct:MIN: \: %5.1lf (min)
        GPRINT:vgprct:AVERAGE: \: %5.1lf (avg)\n


I was able to understand when i was sending ncv only
vg:percentage
appvg:75
rootvg:98

, and it worked.

But i am stupid for more complex solutions and lost in english. I am sure
it is very easy task, but i just do not get it.

Thank you for your help

W.

P.S: I have plan to send VG as status with human formated output and VG2
will be data for graphs.
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