Undefined offset: 1 in rrd.php

[decals74]

Hi,

I'm having some probs trying to create traffic graphs for a Foundry Fastiron FESX424 switch. Here's my setup:

rhel 3
cacti-0.8.6j (unpatched)
php 5.2.3
apache 2.0.46
mysql 5.0.41-community

Cacti is currently graphing localhost and memcached data just fine so the instance seems to be ok otherwise.

I've tried creating the fastiron device as a generic snmp-enabled host and the rrd files are successfully being created by poller.php and rrdtool shows valid data but no graphs are being displayed. graph debug shows the following:

RRDTool Command:

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1123

/usr/local/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title="gsw01 - Traffic - ethernet1" \
--rigid \
--base=1000 \
--height=150 \
--width=500 \
--alt-autoscale \
--vertical-label="bits per second" \
--slope-mode \
DEF:a="/var/www/html/cacti-0.8.6j/rra/gsw01_traffic_in_83.rrd":traffic_in:AVERAGE \
DEF:b="/var/www/html/cacti-0.8.6j/rra/gsw01_traffic_in_83.rrd":traffic_out:AVERAGE \
CDEF:cdefa=a,8,* \
CDEF:cdefe=b,-8,* \
CDEF:cdeff=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" \
AREA:cdefe#96E78A:"Outbound" \
GPRINT:cdeff:LAST:"Current\:%8.2lf %s" \
GPRINT:cdeff:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdeff:MAX:"Maximum\:%8.2lf %s" \
HRULE:0#FF0000:"" \
VRULE:1181372400#9FA4EE:""

RRDTool Says:

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1123

OK

I've seen a couple other posts here with the same errmsg but didn't see any resolution. Googling around indicates that this errmsg is related to an out of scope array member but I'm no PHP pundit and don't want to hack at it. Anyone else have this prob or perhaps a good template?? Thanks.

[TheWitness]

add the following to lib/rrd.php on line 1119 for debugging and post your results.

echo $graph_items["value"];

Thanks,

TheWitness

[decals74]

Hi witness, here's the graph debug output after adding the echo:

RRDTool Command:

Notice: Undefined index: value in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1121

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1126

[decals74]

hmm, did you mean 'echo $graph_item["value"];' ??

i added a couple more echos to identify $value_array[0] and $value_array[1] as such:
#########################################################

1118 $value_array = explode(":", $graph_item["value"]);
1119
1120 ##
1121 echo $graph_items["value"] . "\n";
1122
1123 if ($value_array[0] < 0) {
1124 $value = date("U") - (-3600 * $value_array[0]) - 60 * $value_array[1];
1125 }else{
1126 ##
1127 echo "val_arr0 $value_array[0]";
1128 echo "val_arr1 $value_array[1]";
1129 $value = date("U", mktime($value_array[0],$value_array[1],0));

#########################################################
and graph debug is now:

Notice: Undefined index: value in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1121


val_arr0 00

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1128

val_arr1

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1129

[decals74]

and with 'echo $graph_item["value"];'

#rrd.php#################################################

1118 $value_array = explode(":", $graph_item["value"]);
1119
1120 ##
1121 echo $graph_item["value"] . "\n";
1122
1123 if ($value_array[0] < 0) {
1124 $value = date("U") - (-3600 * $value_array[0]) - 60 * $value_array[1];
1125 }else{
1126 ##
1127 echo "val_arr0 $value_array[0]";
1128 echo "val_arr1 $value_array[1]";
1129 $value = date("U", mktime($value_array[0],$value_array[1],0));

#debug###################################################

RRDTool Command:

00
val_arr0 00

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1128

val_arr1

Notice: Undefined offset: 1 in /var/www/html/cacti-0.8.6j/lib/rrd.php on line 1129

#########################################################

thanks again for your assistance.

[TheWitness]

There may either be a bug in the VRULE code, or you have incorrectly defined it in your graph template. It's pretty late/early though. I have more information, you should avoid the VRULE code.

TheWitness

[TheWitness]

What version of RRDtool are you using? Please advise. This may be an escaping issue.

TheWitness

[TheWitness]

In order to help you with the VRULE issue, you must "Edit" your graph template, edit the VRULE item, take a screen shot and post it here. Also, perform the following in the code:

print_r($graph_item);

Thanks,

TheWitness