[rrd-users] RRD Returning NaN for Some Counters

[MrPaul]

Sorry if this is a MRTG question but the issues seem to be coming from
rrdtool.

I'm trying to graph some GigE sub interfaces (VLANs) on a Cisco 7200. 
The pertinent info out of the mrtg cfg file is as follows

Target[gw-rt.clm_Gi0_1.1]: #Gi0/1.1:COMMUNITY at host.name:::::2
SetEnv[gw-rt.clm_Gi0_1.1]: MRTG_INT_IP="1.1.1.1"
MRTG_INT_DESCR="GigabitEthernet0/1.1-802.1Q-vLAN-subif"
MaxBytes[gw-rt.clm_Gi0_1.1]: 125000000

I'm noticing my MRTG graphs are only generating data for one
direction.  Upon further inspection, the input on this interface is
always nan.  I can poll this manually and I always get an incrementing
counter.

When I run MRTG in debug mode (mrtg --debug=log cfg.file) I get some
indication that rrdtool isn't inserting the data correctly.

--log: Called: RRDs::tune(/home/mrtg/public_html/network-stats/host.name_gi0_1.1.rrd
-a ds0:125000000 -a ds1:125000000 -d ds0:COUNTER -d ds1:COUNTER)
--log: Calling:
RRDs::update(/home/mrtg/public_html/network-stats/host.name_gi0_1.1.rrd,
'1139341818:16790674952726334939:57895191682899')
--log: Called: RRDs::last()
--log: Called: RRDs::fetch(/home/mrtg/public_html/network-stats/host.name_gi0_1.1.rrd,'AVERAGE','-s',1139341818,'-e',1139341818)
--log:   got: NaN/8509438.73067865

Note that last line from RRDs::fetch returned NaN/8509438.73067865. 
That shouldn't be there right?

Thanks for any input you can give me on this one...drawing a blank here.

Paul

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://lists.ee.ethz.ch/rrd-users
WebAdmin    http://lists.ee.ethz.ch/lsg2.cgi