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Contents
#encoding: utf-8
class Riemann::Babbler::Plugin::Cpu < Riemann::Babbler::Plugin
def init
@old_cpu = Hash.new
plugin.set_default(:service, 'cpu usage')
plugin.set_default(:per_processor, false)
plugin.states.set_default(:warning, 70)
plugin.states.set_default(:critical, 85)
end
def collect
array = Array.new
File.read('/proc/stat').split("\n").each do |cpu_line|
# проверяем есть строчка /cpu\d+/ или /cpu / и сграбливаем это в переменную
cpu_number = cpu_line.scan(/cpu(\d+|\s)\s+/)
next if cpu_number.empty?
cpu_number = cpu_number[0][0] == ' ' ? '_total' : cpu_number[0][0]
# работаем со строкой
cpu_line[/cpu(\d+|\s)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/]
_, u2, n2, s2, i2 = [$1, $2, $3, $4, $5].map { |e| e.to_i }
unless @old_cpu[cpu_number].nil?
u1, n1, s1, i1 = @old_cpu[cpu_number]
used = (u2+n2+s2) - (u1+n1+s1)
total = used + i2-i1
fraction = used.to_f / total
end
@old_cpu[cpu_number] = [u2, n2, s2, i2]
# _total идет с трешхолдом, а все остальное без трешхолда
if cpu_number == '_total'
array << {
:service => plugin.service + " cpu#{cpu_number}", :metric => fraction, :description => "Cpu#{cpu_number} usage\n"
} if fraction
else
array << {
:service => plugin.service + " cpu#{cpu_number}", :metric => fraction, :description => "Cpu#{cpu_number} usage\n", :state => 'ok'
} if fraction && plugin.per_processor
end
end
array
end
end
Version data entries
51 entries across 51 versions & 1 rubygems