lib/zabbix-ruby-client/plugins/load.rb
# for more info check
# http://juliano.info/en/Blog:Memory_Leak/Understanding_the_Linux_load_average
require "zabbix-ruby-client/plugin_base"
module ZabbixRubyClient
module Plugins
module Load
extend self
extend ZabbixRubyClient::PluginBase
def collect(*args)
host = args[0]
info = get_info
if info
back = []
back << "#{host} load[one] #{time} #{info[0]}"
back << "#{host} load[five] #{time} #{info[1]}"
back << "#{host} load[fifteen] #{time} #{info[2]}"
back << "#{host} load[procs] #{time} #{info[3]}"
return back
else
return []
end
end
private
def get_info
case os
when :linux
info = getline("/proc/loadavg")
if info
back = info.split(/\s+/)
back[3] = back[3].split(/\//)[0]
back
else
false
end
when :unix
output = `uptime | awk '{print $(NF-2)" "$(NF-1)" "$(NF-0)}' | tr "," " "`
back = output.split(/\s+/)
procs = `top -n | grep processes`
data = procs.split(/\s+/)
back << data[2]
back
else
false
end
end
end
end
end
ZabbixRubyClient::Plugins.register('load', ZabbixRubyClient::Plugins::Load)