Class: LogStash::Outputs::SumoLogic::Sender

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/logstash/outputs/sumologic/sender.rb

Constant Summary

Constants included from Common

Common::CARBON2, Common::CATEGORY_HEADER, Common::CATEGORY_HEADER_DEFAULT, Common::CATEGORY_HEADER_DEFAULT_STATS, Common::CLIENT_HEADER, Common::CLIENT_HEADER_VALUE, Common::CONTENT_ENCODING, Common::CONTENT_TYPE, Common::CONTENT_TYPE_CARBON2, Common::CONTENT_TYPE_GRAPHITE, Common::CONTENT_TYPE_LOG, Common::DEFAULT_LOG_FORMAT, Common::DEFLATE, Common::GRAPHITE, Common::GZIP, Common::HOST_HEADER, Common::LOG_TO_CONSOLE, Common::METRICS_NAME_PLACEHOLDER, Common::NAME_HEADER, Common::NAME_HEADER_DEFAULT, Common::STATS_TAG, Common::STOP_TAG

Instance Method Summary collapse

Methods included from Common

#blank?, #log_dbg, #log_err, #log_info, #log_warn, #set_logger

Constructor Details

#initialize(client, queue, stats, config) ⇒ Sender

Returns a new instance of Sender.



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# File 'lib/logstash/outputs/sumologic/sender.rb', line 18

def initialize(client, queue, stats, config)
  @client = client
  @queue = queue
  @stats = stats
  @stopping = Concurrent::AtomicBoolean.new(false)
  @url = config["url"]
  @sender_max = (config["sender_max"] ||= 1) < 1 ? 1 : config["sender_max"]
  @sleep_before_requeue = config["sleep_before_requeue"] ||= 30
  @stats_enabled = config["stats_enabled"] ||= false
  @iteration_sleep = 0.3

  @tokens = SizedQueue.new(@sender_max)
  @sender_max.times { |t| @tokens << t }

  # Make resend_queue twice as big as sender_max,
  # because if one batch is processed, the next one is already waiting in the thread
  @resend_queue = SizedQueue.new(2*@sender_max)
  @compressor = LogStash::Outputs::SumoLogic::Compressor.new(config)

end

Instance Method Details

#connect ⇒ Object

def stop



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# File 'lib/logstash/outputs/sumologic/sender.rb', line 82

def connect()
  uri = URI.parse(@url)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = @url.downcase().start_with?("https")
  request = Net::HTTP::Get.new(uri.request_uri)
  begin
    res = http.request(request)
    if res.code.to_i != 200
      log_err("ping rejected",
        :url => @url,
        :code => res.code,
        :body => res.body)
      false
    else
      log_info("ping accepted",
        :url => @url)
      true
    end
  rescue Exception => exception
    log_err("ping failed",
      :url => @url,
      :message => exception.message,
      :class => exception.class.name,
      :backtrace => exception.backtrace)
    false
  end
end

#start ⇒ Object

def initialize



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# File 'lib/logstash/outputs/sumologic/sender.rb', line 39

def start()
  log_info("starting sender...",
    :max => @sender_max, 
    :requeue => @sleep_before_requeue)
  @stopping.make_false()
  @sender_t = Thread.new {
    while @stopping.false?
      begin
        # Resend batch if any in the queue
        batch = @resend_queue.deq(non_block: true)
      rescue ThreadError
        # send new batch otherwise
        begin
          batch = @queue.deq(non_block: true)
        rescue ThreadError
          Stud.stoppable_sleep(@iteration_sleep) { @stopping.true? }
          next
        end
      end
      send_request(batch)
    end # while
    @resend_queue.size.times.map { |queue|
      batch = queue.deq()
      send_request(batch)
    }
    @queue.drain().map { |batch| 
      send_request(batch)
    }
    log_info("waiting while senders finishing...")
    while @tokens.size < @sender_max
      sleep 1
    end # while
  }
end

#stop ⇒ Object

def start



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# File 'lib/logstash/outputs/sumologic/sender.rb', line 74

def stop()
  log_info("shutting down sender...")
  @stopping.make_true()
  @queue.enq(Batch.new(Hash.new, STOP_TAG))
  @sender_t.join
  log_info("sender is fully shutted down")
end