/usr/bin/memcached_top is in ruby-memcache-client 1.8.5-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | #!/usr/bin/env ruby
require 'optparse'
require 'ostruct'
require 'socket'
@options = OpenStruct.new
@options.hostname = 'localhost'
@options.port = 11211
op = OptionParser.new do |opts|
opts.banner = "View memcached server statistics\nUsage: #{$0} [options]"
opts.separator "General Options:"
opts.on("-h HOSTNAME", "--hostname=HOSTNAME", "Hostname [default: localhost]") do |h|
@options.hostname = h
end
opts.on("-p PORT", "--port=PORT", Integer, "Port [default: 11211]") do |p|
@options.port = p
end
opts.on_tail("--help", "Show this message") do
puts opts
exit
end
end
op.parse!
def stats_data
data = ''
sock = TCPSocket.new(@options.hostname, @options.port)
sock.print("stats\r\n")
sock.flush
# memcached does not close the socket once it is done writing
# the stats data. We need to read line by line until we detect
# the END line and then stop/close on our side.
stats = sock.gets
while true
data += stats
break if stats.strip == 'END'
stats = sock.gets
end
sock.close
data
end
def parse(stats_data)
stats = []
stats_data.each_line do |line|
stats << "#{$1}: #{$2}" if line =~ /STAT (\w+) (\S+)/
end
stats.sort
end
stats = parse(stats_data)
stats.each do |stat|
puts stat
end
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