graphs not updating, rrdtool says ok?

[fritchie]

Hi all, in graph debug mode I see:

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-60 \
--title="Pocatello Router - Traffic - Gi0/0" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="bits per second" \
--slope-mode \
DEF:a="/usr/share/cacti/site/rra/pocatello_router_traffic_in_465.rrd":traffic_in:AVERAGE \
DEF:b="/usr/share/cacti/site/rra/pocatello_router_traffic_in_465.rrd":traffic_out:AVERAGE \
CDEF:cdefa=a,8,* \
CDEF:cdefe=b,8,* \
AREA:cdefa#00CF00:"Inbound" \
GPRINT:cdefa:LAST:" Current\:%8.2lf %s" \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s\n" \
LINE1:cdefe#002A97:"Outbound" \
GPRINT:cdefe:LAST:"Current\:%8.2lf %s" \
GPRINT:cdefe:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefe:MAX:"Maximum\:%8.2lf %s\n" \
COMMENT:"\n" \
HRULE:0#FF0000:"95th Percentile" \
COMMENT:"(0 mbit in+out)"
RRDTool Says:

OK

but the graph itself is empty with values showing NAN

has anyone else seen this? a permissions issue?[/img]

[rony]

It could be a permission issue on the rrd file or the rra directory. Make sure that the user running the poller has permissions to write to these files.

[gandalf]

Please see my link on "NaN Debugging"
Reinhard