[Xymon] Trying to implement, fw-conntrack, RRD doesn't like the data, won't generate graphs

[Mike Burger]

I've implemented fw-conntrack, per 
http://www.bakarasse.de/pages/en/xymon-plugins/client-side-plugins/fw-conntrack.sh.php.

All seems well EXCEPT that no graphs are being generated.

Looking at the rrd-status.log, I see the following:

2016-07-21 09:13:00.487129 xymond_channel: Tried to down BOARDBUSY: 
Invalid argument
2016-07-21 09:13:00 xymond_channel: received shutdown message
2016-07-21 09:13:00.487647 Shutting down, flushing cached updates to 
disk
2016-07-21 09:13:00.489846 Cache flush completed
2016-07-21 09:14:48.695450 Shutting down, flushing cached updates to 
disk
2016-07-21 09:14:48.699070 Cache flush completed
2016-07-21 09:31:12.628946 RRD error updating 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd from 
192.168.0.1: 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd: not a 
simple signed integer: '0.401'
2016-07-21 09:54:27.013907 RRD error updating 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd from 
192.168.0.1: 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd: not a 
simple signed integer: '0.237'
2016-07-21 10:16:36.315732 RRD error updating 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd from 
192.168.0.1: 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd: not a 
simple signed integer: '0.381'
2016-07-21 10:38:55.627258 RRD error updating 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd from 
192.168.0.1: 
/var/lib/xymon/rrd/burgers.bubbanfriends.org/fw-conntrack.rrd: not a 
simple signed integer: '0.381'

But these are the only errors I'm seeing, at the moment.

Has anyone else implemented this, and if so, do you have any ideas on 
what I can look at to get this functioning?

Thanks.

-- 
Mike Burger
http://www.bubbanfriends.org

"It's always suicide-mission this, save-the-planet that. No one ever 
just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1