Hi Guys,

I have a really weird problem. I have created an aggregate graph from simple 2 line graphs. When the aggregate graph is created under the aggregate graphs section(under management) everything is cool and working accordingly.

However, when I add the aggregated graph under a graph tree, the whole RRD for the aggregated graph changes and the graph cannot show the total value.

Here is the graph rrd before adding to a tree:

**Code:**

/bin/rrdtool graph - \

--imgformat=PNG \

--start='-86400' \

--end='-300' \

--title='Total Online Users' \

--base='1000' \

--height='150' \

--width='650' \

--alt-autoscale-max \

--lower-limit='0' \

--units-exponent='0' \

--vertical-label='Online Users' \

--slope-mode \

--font TITLE:10: \

--font AXIS:7: \

--font LEGEND:8: \

--font UNIT:7: \

DEF:a='/usr/share/cacti/rra/xxxxxxxxxxxxxxxx.rrd':'dsl_user_input':AVERAGE \

DEF:b='/usr/share/cacti/rra/yyyyyyyyyyyyyyyy.rrd':'time':AVERAGE \

CDEF:cdefa='a,0,*' \

CDEF:cdefb='b,0,*' \

CDEF:cdefc='TIME,1533625072,GT,a,a,UN,0,a,IF,IF,TIME,1533625072,GT,b,b,UN,0,b,IF,IF,+' \

LINE2:cdefa#0000FFFF:'' \

LINE2:cdefb#0000FFFF:'' \

GPRINT:cdefc:LAST:'Total Users\:%8.0lf' \

LINE2:cdefc#0000FFFF:'' \

GPRINT:cdefc:MIN:'Min Users\: %8.0lf' \

GPRINT:cdefc:MAX:'Max Users\: %8.0lf\n'

Here is the graph rrd after adding to a tree:

**Code:**

/bin/rrdtool graph - \

--imgformat=PNG \

--start='-86400' \

--end='-300' \

--title='Total Online Users' \

--base='1000' \

--height='150' \

--width='650' \

--alt-autoscale-max \

--lower-limit='0' \

--units-exponent='0' \

--vertical-label='Online Users' \

--slope-mode \

--font TITLE:10: \

--font AXIS:7: \

--font LEGEND:8: \

--font UNIT:7: \

DEF:a='/usr/share/cacti/rra/xxxxxxxxxxxxxxxx.rrd':'dsl_user_input':AVERAGE \

DEF:b='/usr/share/cacti/rra/yyyyyyyyyyyyyyyy.rrd':'time':AVERAGE \

CDEF:cdefa='a,0,*' \

CDEF:cdefb='b,0,*' \

LINE2:cdefa#0000FFFF:'' \

LINE2:cdefb#0000FFFF:''

Basically the cdef function loses the total value(cdefc) and the graph ends up showing nothing.

I can't understand why!

Any help appreciated!

Thanks!!!