Class: Fairy::Master

Inherits:
Object
  • Object
show all
Defined in:
lib/fairy/master.rb

Constant Summary collapse

IPADDR_REGEXP =

IPv4(ipv6map) または IPv6アドレスか?

/(::ffff:)?([0-9]+\.){3}[0-9]+|[0-9a-f]+:([0-9a-f]*:)[0-9a-f]*/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Master

Returns a new instance of Master.



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# File 'lib/fairy/master.rb', line 24

def initialize

#       @clients = {}
#       @clients_mutex = Mutex.new
#       @clients_cv = XThread::ConditionVariable.new

  @controller_seq = -1
  @controller_seq_mutex = Mutex.new

  @controllers = {}
  @controllers_mutex = Mutex.new
  @controllers_cv = XThread::ConditionVariable.new

#      @clientds2controller = {}

  @nodes = {}
  @nodes_mutex = Mutex.new
  @node_seq = -1

  @no_of_processors = {}
  @no_of_processors_mutex = Mutex.new

  @no_of_active_processors = {}
  @no_of_active_processors_mutex = Mutex.new
  @no_of_active_processors_cv = XThread::ConditionVariable.new

end

Instance Attribute Details

#controllers ⇒ Object (readonly)

Returns the value of attribute controllers.



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# File 'lib/fairy/master.rb', line 52

def controllers
  @controllers
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/fairy/master.rb', line 55

def logger
  @logger
end

#nodes ⇒ Object (readonly)

Returns the value of attribute nodes.



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# File 'lib/fairy/master.rb', line 53

def nodes
  @nodes
end

Class Method Details

.start(service) ⇒ Object 



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# File 'lib/fairy/master.rb', line 335

def Master.start(service)
  master = Master.new
  master.start(service)
end

Instance Method Details

#assgin_controller ⇒ Object 



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# File 'lib/fairy/master.rb', line 116

def assgin_controller

#       @clients_mutex.synchronize do
# 	@clients[fairy.deep_space] = fairy
#       end

  Log::debug(self, "Assgin Controller")
  @controllers_mutex.synchronize do
	controller_id = controller_next_id
	MasterAPP.start_subcommand(CONF.RUBY_BIN, 
   CONF.CONTROLLER_BIN,
   "--master", @deepconnect.local_id.to_s, 
   "--id", controller_id.to_s)
	begin
	  timeout(CONF.SUBCMD_EXEC_TIMEOUT) do
 while !@controllers[controller_id]
   @controllers_cv.wait(@controllers_mutex)
 end
	  end
	rescue Timeout::Error
	  Log::fatal(self, "Can't exec Controller")
	  ERR::Fail ERR::CantExecSubcmd, "controller"
	end

#	@clientds2controller[fairy.deep_space] = @controllers[controller_id]
	Log::debug(self, "Assgin Controller: Assgined")
	@controllers[controller_id]
  end
end

#controller_next_id ⇒ Object

Controller 関連メソッド



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# File 'lib/fairy/master.rb', line 110

def controller_next_id
  @controller_seq_mutex.synchronize do
	@controller_seq += 1
  end
end

#leisured_node(blocking = true) ⇒ Object 



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# File 'lib/fairy/master.rb', line 210

def leisured_node(blocking = true)
Log::debug(self, "LAISURED NODE S:")
  @no_of_active_processors_mutex.synchronize do
	loop do
	  min_node = nil
	  min_no_processor = nil
	  for uuid, node in @nodes.dup
 no = @no_of_active_processors[node]
 if !min_no_processor or min_no_processor > no
   min_no_processor = no
   min_node = node
 end
	  end
	  if min_no_processor <= CONF.MASTER_MAX_ACTIVE_PROCESSORS
Log::debug(self, "LAISURED NODE E:")
 return min_node 
	  end
      if blocking
        Log::debug(self, "LAISURED NODE 1 WAITING:")
        @no_of_active_processors_cv.wait(@no_of_active_processors_mutex)
        Log::debug(self, "LAISURED NODE 2 WAITING END:")
      else
Log::debug(self, "LAISURED NODE E:")
        return nil
      end
	end
  end
end

#leisured_node_except_nodes(except_nodes = [], blocking = true) ⇒ Object 



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# File 'lib/fairy/master.rb', line 239

def leisured_node_except_nodes(except_nodes = [], blocking = true)
Log::debug(self, "LAISURED NODE S:")
  @no_of_active_processors_mutex.synchronize do
	loop do
	  min_node = nil
	  min_no_processor = nil
	  for uuid, node in @nodes.dup
 next if except_nodes.include?(node)

 no = @no_of_active_processors[node]
 if !min_no_processor or min_no_processor > no
   min_no_processor = no
   min_node = node
 end
	  end
	  if min_node && min_no_processor <= CONF.MASTER_MAX_ACTIVE_PROCESSORS
Log::debug(self, "LAISURED NODE E:")
 return min_node 
	  end
	  if blocking
        Log::debug(self, "LAISURED NODE 1 WAITING:")
        @no_of_active_processors_cv.wait(@no_of_active_processors_mutex)
        Log::debug(self, "LAISURED NODE 2 WAITING END:")
	  else
 return nil
	  end
	end
  end
end

#log_id ⇒ Object 



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# File 'lib/fairy/master.rb', line 57

def log_id
  "Master"
end

#node(host) ⇒ Object 



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# File 'lib/fairy/master.rb', line 303

def node(host)
#puts "HOST: #{host}"
  unless IPADDR_REGEXP =~ host
	Resolv.each_address(host) do |addr|
	  ipaddr = IPAddr.new(addr)
#	  ipaddr = ipaddr.ipv4_mapped if ipaddr.ipv4?
	  ipaddr = ipaddr.native
	  host = ipaddr.to_s

	  @nodes_mutex.synchronize do
 if n = @nodes[host] 
   return n 
 end
	  end
	end
	
	return nil
  end

  node = nil
  @nodes_mutex.synchronize do
	node = @nodes[host]
  end
  node
end

#node_in_reisured(host) ⇒ Object 



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# File 'lib/fairy/master.rb', line 183

def node_in_reisured(host)
Log::debug(self, "NODE IN LAISURED S:")
  node = node(host)
  
  return nil unless node

  @no_of_active_processors_mutex.synchronize do
	while @no_of_active_processors[node] > CONF.MASTER_MAX_ACTIVE_PROCESSORS
Log::debug(self, "NODE IN LAISURED 1: WAITING")
	  @no_of_active_processors_cv.wait(@no_of_active_processors_mutex)
Log::debug(self, "NODE IN LAISURED 2: WAITING END")
	end
Log::debug(self, "NODE IN LAISURED E:")
	node
  end
end

#node_in_reisured_without_block(host) ⇒ Object 



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# File 'lib/fairy/master.rb', line 200

def node_in_reisured_without_block(host)
  node = node(host)
  @no_of_active_processors_mutex.synchronize do
	if @no_of_active_processors[node] > CONF.MASTER_MAX_ACTIVE_PROCESSORS
      return false
	end
  end
  node
end

#register_controller(controller) ⇒ Object 



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# File 'lib/fairy/master.rb', line 146

def register_controller(controller)
  @controllers_mutex.synchronize do
	@controllers[controller.id] = controller
	@controllers_cv.broadcast
  end
end

#register_node(node) ⇒ Object

Node 関連メソッド



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# File 'lib/fairy/master.rb', line 286

def register_node(node)
  @nodes_mutex.synchronize do
	@node_seq += 1
	@no_of_processors[node] = 0
	@no_of_active_processors[node] = 0
	
	addr = node.deep_space.peer_uuid[0]
	@nodes[addr] = node
	Log::info self, "Node added: #{addr}->#{node}##{@node_seq}"
	node.id = @node_seq
	node.addr = addr
  end
end

#set_no_of_active_processors(node, no) ⇒ Object 



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# File 'lib/fairy/master.rb', line 175

def set_no_of_active_processors(node, no)
  @no_of_active_processors_mutex.synchronize do
	Log::debug(self, "CHANGE ACTIVE PROCESSORS: #{node}->#{no}")
	@no_of_active_processors[node] = no
	@no_of_active_processors_cv.broadcast
  end
end

#set_no_of_processors(node, no) ⇒ Object 



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# File 'lib/fairy/master.rb', line 168

def set_no_of_processors(node, no)
  @no_of_processors_mutex.synchronize do
	@no_of_processors[node] = no
  end
end

#start(service) ⇒ Object 



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# File 'lib/fairy/master.rb', line 61

def start(service)
  @deepconnect = DeepConnect.start(service)
  @deepconnect.export("Master", self)

  require "fairy/share/inspector"
  @deepconnect.export("Inspector", Inspector.new(self))
  

  require "fairy/share/log"
  @logger = Logger.new
  Log.logger = @logger
  Log.type = "[M]"

  @deepconnect.when_disconnected do |deepspace, opts|
	when_disconnected(deepspace, opts)
  end

  Log.info(self, "Master Service Start")
  Log::info(self, "\tfairy version: #{Version}")
  Log::info(self, "\t[Powerd By #{RUBY_DESCRIPTION}]") 

  begin
	require "fairy.so"
	Log::warn self, "\t Load fairy.so"
  rescue LoadError
	Log::warn self, "Can't load fairy.so. Can't use this feature"
  end
end

#terminate_controller(controller) ⇒ Object 



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# File 'lib/fairy/master.rb', line 153

def terminate_controller(controller)
  @controllers_mutex.synchronize do
	@controllers.delete(controller.id)
	@controllers_cv.broadcast
  end
  
  begin
	controller.terminate
	Process.wait
  rescue
	p $!, $@
  end
end

#unlimited_leisured_node ⇒ Object 



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# File 'lib/fairy/master.rb', line 269

def unlimited_leisured_node
  min_node = nil
  min_no_processor = nil
  for uuid, node in @nodes.dup
#	no = nil
#	@no_of_processors_mutex.synchronize do
	no = @no_of_active_processors[node]
#	end
	if !min_no_processor or min_no_processor > no
	  min_no_processor = no
	  min_node = node
	end
  end
  min_node
end

#when_disconnected(deepspace, opts) ⇒ Object 



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# File 'lib/fairy/master.rb', line 90

def when_disconnected(deepspace, opts)
  Log::debug self, "MASTER: disconnected: Start termination"
#       @controllers_mutex.synchronize do
# 	if c = @controllers.find{|c| c.deep_space == deepspace}
# 	  when_disconnected_controller(c, deepspace, opts)
# 	end
#       end

  # node

  @nodes_mutex.synchronize do
	if addr_node= @nodes.find{|addr, node| node.deep_space == deepspace}
	  Log::info self, "MASTER: disconnected NODE: start termination"
	  when_disconnected_node(addr_node[0], addr_node[1], opts)
	end
  end
end

#when_disconnected_node(addr, node, opts) ⇒ Object 



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# File 'lib/fairy/master.rb', line 329

def when_disconnected_node(addr, node, opts)
#      addr = deep_space.peer_uuid[0]
  Log::info(self, "NODE: disconnected(#{addr})")
  @nodes.delete(addr)
end