Getting munin to get totals accoss nodes

Question

Below is my config file for munin. I am trying to do a test for summing the loads across machiches. The nodes are showing up un munin but the total is not. Did I leave something out?

[ec2-50-17-142-0.compute-1.amazonaws.com]
address 50.17.142.0
use_node_name yes

[ec2-107-20-94-67.compute-1.amazonaws.com]
address 107.20.94.67
use_node_name yes

[ec2-107-21-83-181.compute-1.amazonaws.com]
address 107.21.83.181
use_node_name yes


[compute-1.amazonaws.com;Totals]
update no
load.graph_title Total load
load.sum_load.label load
load.sum_load.special_stack  ec2-50-17-142-0=ec2-50-17-142-0.compute-1.amazonaws.com:load.load  ec2-107-20-94-67=ec2-107-20-94-67.compute-1.amazonaws.com:load.load  ec2-107-21-83-181=ec2-107-21-83-181.compute-1.amazonaws.com:load.load

Answer 1

try:

[compute-1.amazonaws.com;Totals]  
update no  
load.graph_title Total load  
load.sum_load.label load  
load.sum_load.sum ec2-50-17-142-0=ec2-50-17-142-0.compute-1.amazonaws.com:load.load ec2-107-20-94-67=ec2-107-20-94-67.compute-1.amazonaws.com:load.load ec2-107-21-83-181=ec2-107-21-83-181.compute-1.amazonaws.com:load.load