Class: UnicornWrangler::OutOfMemoryKiller

Inherits:
Killer
  • Object
show all
Defined in:
lib/unicorn_wrangler.rb

Instance Method Summary collapse

Constructor Details

#initialize(logger, stats, max: 20, check_every: 250) ⇒ OutOfMemoryKiller

Returns a new instance of OutOfMemoryKiller.



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# File 'lib/unicorn_wrangler.rb', line 146

def initialize(logger, stats, max: 20, check_every: 250)
  super(logger, stats)
  @max = max
  @check_every = check_every
  @logger.info "Killing workers when using more than #{@max}MB"
end

Instance Method Details

#call(requests, request_time) ⇒ Object 



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# File 'lib/unicorn_wrangler.rb', line 153

def call(requests, request_time)
  return unless (requests % @check_every).zero? # avoid overhead of checking memory too often
  memory = used_memory
  if memory > @max
    kill :memory, memory, requests, request_time
  else
    @stats.histogram("#{STATS_NAMESPACE}.keep.memory", memory) if @stats
    report_status "Keeping", :memory, memory, requests, request_time
  end
end