poller not working

[trini18]

I followed the install to a tee but the problem am facing is that nothing is polling

cacti log shows
CMDPHP: Poller[0] Host[2] DS[9] WARNING: Result from SNMP not valid. Partial Result:

graphs are there but it just shows nan

if i manually poll some graphs will poll but some don't?

running on fedora core 6

thanks

[TheWitness]

How familiar are you with Cacti? Are you familiar with net-snmp? Do you know what you are doing?

TheWitness

[trini18]

new to cacti...and no i don't know what am doing..thats why i posted

[TheWitness]

It's good to know that. Well, If you hunt down Gandolf. He has a whole book on Cacti stuff in his signature line.

As far as "snmp not responding". That can be for several of reasons. It could be that the OID does not exist of the agent (most likely), you dont have the correct community string (beginners issue), or the device is busy and could not respond in time, or there are problems in the network and either the request or response was lost.

The best thing to do to test is the following. Knowing the OID that Cacti is polling, you do the following:

snmpget -v <your_snmp_version> -c <your_snmp_community> <your_hostname> <your_oid>

If you get a response, then it might be a timeout. I suspect that one of the aforementioned problems relates to you.

TheWitness

[trini18]

I know snmp is working on my device becuase I monitor that device on a windows box...I ran snmpget and it did respond back...in cacti under devices it does show the snmp...it is able to ping the device becuase it says its up...the only problem is that cacti cant graph

[TheWitness]

Goto Graph Management and Select the Graph of interest. Then from that interface, hit the Graph Debug link and post what it comes back with.

TheWitness

[trini18]

this is what it comes back with

RRDTool Command:

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title="1.1.1.1 (CORE-SW001) - Traffic - Gi0/1" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="bits per second" \
--slope-mode \
DEF:a="/var/www/html/cacti/rra/1_1_1_1_core001_traffic_in_10.rrd":traffic_in:AVERAGE \
DEF:b="/var/www/html/cacti/rra/1_1_1_1_core001_traffic_in_10.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"


RRDTool Says:

OK

[TheWitness]

So, it's graphing fine. My guess that those warning were for this graph. No item to poll, all zero;s,

TheWitness

[trini18]

i've added another device and its doing the same thing

[gandalf]

Please follow advise of second link of my signature. Please respond to each of those steps
Reinhard