template varaible array issue

[gitkent]

I've had issue on /etc/puppet/environments/production/modules/ganglia/templates/gmond.conf.el6.erb (el5 as well i guess) with error
"
Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Failed to parse template ganglia/gmond.conf.el6.erb:
Filepath: /etc/puppet/environments/production/modules/ganglia/templates/gmond.conf.el6.erb
Line: 36
Detail: undefined method `each' for nil:NilClass
at /etc/puppet/environments/production/modules/ganglia/manifests/gmond/config.pp:25 on node rhel6test.datamail.co.nz
Warning: Not using cache on failed catalog
Error: Could not retrieve catalog; skipping run
"

running on puppet agent 3.3. It looks like ruby doens't understand .each loopinh function in the template. I'd added the following to fix it.

<% if @udp_send_channel.is_a? Array ; @udp_send_channel.each do |channel| -%>
... ...
... ...
<% end ; end -%>

[jhoblitt]

Nice catch. In theory, udp_send_channel should only be able to be an array or nil. Are you passing something like udp_send_channel => undef?

[gitkent]

no, I am passing the default item in the array.
class ganglia::gmond (
... ...
$udp_send_channel = [
{ mcast_join => '239.2.11.71', port => 8649, ttl => 1 }
],
... ...
) {
... ...
}

[jhoblitt]

That's not valid syntax. Could you provide a real code snippet?

[gitkent]

sorry about delayed as I'd been rebuilding the machine. The code snippet as below is in gmond.pp:-

class ganglia::gmond (
$cluster_name = 'unspecified',
$cluster_owner = 'unspecified',
$cluster_latlong = 'unspecified',
$cluster_url = 'unspecified',
$host_location = 'unspecified',
$gmond_mute = 'no',
$gmond_deaf = 'yes',
$udp_send_channel = [
{ mcast_join => '239.2.11.71', port => 8649, ttl => 1 }
],
$udp_recv_channel = [
{ mcast_join => '239.2.11.71', port => 8649, bind => '239.2.11.71' }
],
$tcp_accept_channel = [ { port => 8659 } ],
) {
include ganglia::params
validate_string($cluster_name)
validate_string($cluster_owner)
.... ... ...
.... ... ...

[jhoblitt]

I apologize if my request was vague, what I was asking for a snippet from your manifest in which you are declaring the ganglia::gmond class.

[jhoblitt]

I believe PR #11 should prevent the Detail: undefined methodeach' for nil:NilClass` error that was being reported. I'm going to go ahead and close this issue but please reopen it if the problem is reproducible with the current master branch.