Send sar/sysstat metrics to a statsd server, store them as timers

sar-statsd.rb

#!/usr/bin/env ruby
require 'socket'

STATSD_HOST = '127.0.0.1'
STATSD_PORT = 8125
NAMESPACE = "sysstat"

@hostname = `hostname -s`.chomp
@statsd = UDPSocket.new
@statsd.connect STATSD_HOST, STATSD_PORT

def report(k, v)
  puts "#{NAMESPACE}.#{@hostname}.#{k}:#{v}|ms" if ENV["DEBUG"]
  unless ENV["NOSTATSD"]
    @statsd.send "#{NAMESPACE}.#{@hostname}.#{k}:#{v}|ms", 0
  end
end

switching_contexts = false
headings = []
ARGF.each do |line|
  next if line.match(/^Linux/)

  if line.strip.empty?
    switching_contexts = true 
  else
    if switching_contexts 
      switching_contexts = false
      headings = line.split(" ")[1..-1].map(&:strip).reject(&:empty?).reject{|v| v.match(/AM|PM/)}
    else
      values = line.split(" ")[1..-1].map(&:strip).reject(&:empty?).reject{|v| v.match(/AM|PM/)}
      prefix = nil
      values.each_with_index do |v,i|
        if i == 0 && (v.to_f.to_s != v && v.to_i.to_s != v)
          prefix = v
        else
          report("#{headings[i]}#{".#{prefix}" if prefix}", v) 
        end
      end

    end
  end

end