Proof of concept voldemort jmx stats via jruby

vold-stats.rb

require 'rubygems'
begin
	require 'jmx'
rescue LoadError
	puts "This must be run under JRuby. Sorry"
	exit(1)
end

client = JMX.connect :host => 'localhost', :port => '9998'

#puts client.domains.to_a

socket_server = client['voldemort.server.socket:type=socket-server']
store_stats_agg = client['voldemort.store.stats.aggregate:type=aggregate-perf']

puts "Current threads: #{socket_server.current_threads}"
puts "Average Get Time: #{store_stats_agg.average_get_completion_time_in_ms}ms"
%w[get put delete get_all].each do |op|
	stat = "store_stats_agg.number_of_calls_to_#{op}"
	puts "#{op} Calls: #{eval(stat)}"
end
puts "Obsolete Versions: #{store_stats_agg.number_of_obsolete_versions}"