Module: Nsqcd::WorkerGroup

Defined in:
lib/nsqcd/workergroup.rb

Instance Method Summary collapse

Instance Method Details

#after_fork ⇒ Object

note! this is not Serverengine#after_start, this is ours!



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# File 'lib/nsqcd/workergroup.rb', line 14

def after_fork # note! this is not Serverengine#after_start, this is ours!
  fafter = Nsqcd::CONFIG[:hooks][:after_fork]
  fafter.call if fafter
end

#before_fork ⇒ Object 



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# File 'lib/nsqcd/workergroup.rb', line 9

def before_fork
  fbefore = Nsqcd::CONFIG[:hooks][:before_fork]
  fbefore.call if fbefore
end

#initialize ⇒ Object 



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# File 'lib/nsqcd/workergroup.rb', line 5

def initialize
  @stop_flag = ServerEngine::BlockingFlag.new
end

#run ⇒ Object 



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# File 'lib/nsqcd/workergroup.rb', line 19

def run
  after_fork

  # Allocate single thread pool if share_threads is set. This improves load balancing
  # when used with many workers.
  pool = config[:share_threads] ? Concurrent::FixedThreadPool.new(config[:threads]) : nil

  worker_classes = config[:worker_classes]

  if worker_classes.respond_to? :call
    worker_classes = worker_classes.call
  end

  # If we don't provide a connection to a worker,
  # the queue used in the worker will create a new one

  @workers = worker_classes.map do |worker_class|
    worker_class.new( pool, { connection: config[:connection] })
  end

  # if more than one worker this should be per worker
  # accumulate clients and consumers as well
  @workers.each do |worker|
    worker.run
  end
  # end per worker
  #
  until @stop_flag.wait_for_set(Nsqcd::CONFIG[:heartbeat])
    Nsqcd.logger.debug("Heartbeat: running threads [#{Thread.list.count}]")
    # report aggregated stats?
  end
end

#stop ⇒ Object 



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# File 'lib/nsqcd/workergroup.rb', line 52

def stop
  Nsqcd.logger.info("Shutting down workers")
  @workers.each do |worker|
    worker.stop
  end
  @stop_flag.set!
end