/usr/lib/ruby/vendor_ruby/chef/expander/control.rb is in chef-expander 10.12.0-1.
This file is owned by root:root, with mode 0o644.
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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | #
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Author:: Seth Falcon (<seth@opscode.com>)
# Author:: Chris Walters (<cw@opscode.com>)
# Copyright:: Copyright (c) 2010-2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'bunny'
require 'yajl'
require 'eventmachine'
require 'amqp'
require 'mq'
require 'highline'
require 'chef/expander/node'
require 'chef/expander/configuration'
require 'pp'
module Chef
module Expander
class Control
def self.run(argv)
remaining_args_after_opts = Expander.init_config(ARGV)
new(remaining_args_after_opts).run
end
def self.desc(description)
@desc = description
end
def self.option(*args)
#TODO
end
def self.arg(*args)
#TODO
end
def self.descriptions
@descriptions ||= []
end
def self.method_added(method_name)
if @desc
descriptions << [method_name, method_name.to_s.gsub('_', '-'), @desc]
@desc = nil
end
end
#--
# TODO: this is confusing and unneeded. Just whitelist the methods
# that map to commands and use +send+
def self.compile
run_method = "def run; case @argv.first;"
descriptions.each do |method_name, command_name, desc|
run_method << "when '#{command_name}';#{method_name};"
end
run_method << "else; help; end; end;"
class_eval(run_method, __FILE__, __LINE__)
end
def initialize(argv)
@argv = argv.dup
end
desc "Show this message"
def help
puts "Chef Expander #{Expander.version}"
puts "Usage: chef-expanderctl COMMAND"
puts
puts "Commands:"
self.class.descriptions.each do |method_name, command_name, desc|
puts " #{command_name}".ljust(15) + desc
end
end
desc "display the aggregate queue backlog"
def queue_depth
h = HighLine.new
message_counts = []
amqp_client = Bunny.new(Expander.config.amqp_config)
amqp_client.start
0.upto(VNODES - 1) do |vnode|
q = amqp_client.queue("vnode-#{vnode}", :durable => true)
message_counts << q.status[:message_count]
end
total_messages = message_counts.inject(0) { |sum, count| sum + count }
max = message_counts.max
min = message_counts.min
avg = total_messages.to_f / message_counts.size.to_f
puts " total messages: #{total_messages}"
puts " average queue depth: #{avg}"
puts " max queue depth: #{max}"
puts " min queue depth: #{min}"
ensure
amqp_client.stop if defined?(amqp_client) && amqp_client
end
desc "show the backlog and consumer count for each vnode queue"
def queue_status
h = HighLine.new
queue_status = [h.color("VNode", :bold), h.color("Messages", :bold), h.color("Consumers", :bold)]
total_messages = 0
amqp_client = Bunny.new(Expander.config.amqp_config)
amqp_client.start
0.upto(VNODES - 1) do |vnode|
q = amqp_client.queue("vnode-#{vnode}", :durable => true)
status = q.status
# returns {:message_count => method.message_count, :consumer_count => method.consumer_count}
queue_status << vnode.to_s << status[:message_count].to_s << status[:consumer_count].to_s
total_messages += status[:message_count]
end
puts " total messages: #{total_messages}"
puts
puts h.list(queue_status, :columns_across, 3)
ensure
amqp_client.stop if defined?(amqp_client) && amqp_client
end
desc "show the status of the nodes in the cluster"
def node_status
status_mutex = Mutex.new
h = ::HighLine.new
node_status = [h.color("Host", :bold), h.color("PID", :bold), h.color("GUID", :bold), h.color("Vnodes", :bold)]
print("Collecting status info from the cluster...")
AMQP.start(Expander.config.amqp_config) do
node = Expander::Node.local_node
node.exclusive_control_queue.subscribe do |header, message|
status = Yajl::Parser.parse(message)
status_mutex.synchronize do
node_status << status["hostname_f"]
node_status << status["pid"].to_s
node_status << status["guid"]
# BIG ASSUMPTION HERE that nodes only have contiguous vnode ranges
# will not be true once vnode recovery is implemented
node_status << "#{status["vnodes"].min}-#{status["vnodes"].max}"
end
end
node.broadcast_message(Yajl::Encoder.encode(:action => :status, :rsvp => node.exclusive_control_queue_name))
EM.add_timer(2) { AMQP.stop;EM.stop }
end
puts "done"
puts
puts h.list(node_status, :columns_across, 4)
puts
end
desc "sets the log level of all nodes in the cluster"
def log_level
@argv.shift
level = @argv.first
acceptable_levels = %w{debug info warn error fatal}
unless acceptable_levels.include?(level)
puts "Log level must be one of #{acceptable_levels.join(', ')}"
exit 1
end
h = HighLine.new
response_mutex = Mutex.new
responses = [h.color("Host", :bold), h.color("PID", :bold), h.color("GUID", :bold), h.color("Log Level", :bold)]
AMQP.start(Expander.config.amqp_config) do
node = Expander::Node.local_node
node.exclusive_control_queue.subscribe do |header, message|
reply = Yajl::Parser.parse(message)
n = reply['node']
response_mutex.synchronize do
responses << n["hostname_f"] << n["pid"].to_s << n["guid"] << reply["level"]
end
end
node.broadcast_message(Yajl::Encoder.encode({:action => :set_log_level, :level => level, :rsvp => node.exclusive_control_queue_name}))
EM.add_timer(2) { AMQP.stop; EM.stop }
end
puts h.list(responses, :columns_across, 4)
end
compile
end
end
end
|