Class: Appsignal::Hooks::PumaProbe Private

Inherits:
Object
  • Object
show all
Defined in:
lib/appsignal/hooks/puma.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PumaProbe

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of PumaProbe.



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# File 'lib/appsignal/hooks/puma.rb', line 44

def initialize
  @hostname = Appsignal.config[:hostname] || Socket.gethostname
end

Instance Method Details

#call ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/appsignal/hooks/puma.rb', line 48

def call
  puma_stats = fetch_puma_stats
  return unless puma_stats

  stats = JSON.parse puma_stats, :symbolize_names => true
  counts = {}
  count_keys = [:backlog, :running, :pool_capacity, :max_threads]

  if stats[:worker_status] # Multiple workers
    stats[:worker_status].each do |worker|
      stat = worker[:last_status]
      count_keys.each do |key|
        count_if_present counts, key, stat
      end
    end

    gauge(:workers, stats[:workers], :type => :count)
    gauge(:workers, stats[:booted_workers], :type => :booted)
    gauge(:workers, stats[:old_workers], :type => :old)
  else # Single worker
    count_keys.each do |key|
      count_if_present counts, key, stats
    end
  end

  gauge(:connection_backlog, counts[:backlog]) if counts[:backlog]
  gauge(:pool_capacity, counts[:pool_capacity]) if counts[:pool_capacity]
  gauge(:threads, counts[:running], :type => :running) if counts[:running]
  gauge(:threads, counts[:max_threads], :type => :max) if counts[:max_threads]
end