On 11/8/2016 4:24 AM, Hauke Fath wrote:
On 11/03/16 14:44, Hauke Fath wrote:
a xymon 4.3.27 installation I set up a while back generally works, but
comes up with all blank graphs.
Digging into it some more, I have
#!/bin/sh
rrd="/var/xymon/rrd/Gurgler/tcp.ssh.rrd"
rrdtool graph "/tmp/rrd-ssh-output.png" \
--width=800 -v "ssh response time" \
-s 'now-48h' -e now \
DEF:time1=${rrd}:sec:AVERAGE \
LINE2:time1#FF0000:time1
creating a proper graph (for the fun of it: <https://www2.nt.tu-darmstadt.de/~hf/xymon/rrdtool-graph-output.png>;).
On the other hand,
#!/bin/sh
REQUEST_METHOD=GET
SCRIPT_NAME=showgraph.sh
QUERY_STRING="host=Gurgler&color=green&service=tcp%3aconn&graph_height=120&graph_width=576&disp=Gurgler&nostale&graph=daily&action=view"
export REQUEST_METHOD SCRIPT_NAME QUERY_STRING
showgraph.cgi \
--env=/etc/pkg/xymon/xymonserver.cfg \
| tail -n +4 > /tmp/showgraph-output.png
leaves me with an empty graph - see <https://www2.nt.tu-darmstadt.de/~hf/xymon/showgraph-output.png>;.
Adding --debug doesn't bring up anything helpful; --save does not write anything, fwiw.
For sh!ts and giggles, and to rule out pkgsrc artefacts, I installed xymon from the distribution sources, and got identical results..This needed a few NetBSD specific patches, which I saw the pkg maintainer had sent to the list before, but they were never incorporated -- what is the accepted way to submit patches?
I do not at this point have a comprehensive mental image of xymon's inner workings, so hints and pointers would be very helpful.
Cheerio,
hauke
Ahh. Took me a bit to realize that you meant an RRD graph with no data in it rather than just a blank (or invalid) image. :)
The query_string looks correct and it appears to work fine on a test environment. One point, though, is that you're looking at two different data sources. The manual script is looking at SSH, while the shell wrapper is reading the conn (ping) test. Does "tcp%3assh" instead of "tcp%3aconn" work for you?
On a broader note are *any* graphs showing data properly on the trends pages?
-jc
