mc-ping

#!/usr/bin/env ruby

require 'mcollective'

oparser = MCollective::Optionparser.new({:verbose => true})

options = oparser.parse{|parser, options|
    parser.define_head "Pings all hosts and report their names and some stats"
}

begin
    client = MCollective::Client.new(options[:config])
    client.options = options

    start = Time.now.to_f
    times = []

    client.req("ping", "discovery") do |resp|
        times << (Time.now.to_f - start) * 1000

        if options[:verbose]
            printf("%-40s time=%.2f ms\n", resp[:senderid], times.last)
        else
            printf(".")
        end
    end

    client.disconnect
rescue Exception => e
    STDERR.puts "Could not call remote agent: #{e}"
    exit 1
end

puts("\n\n---- ping statistics ----")

if times.size > 0
    sum = times.inject(0){|acc,i|acc +i}
    avg = sum / times.length.to_f

    printf("%d replies max: %.2f min: %.2f avg: %.2f\n", times.size, times.max, times.min, avg)
else
    puts("No responses received")
end

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