Class: Datadog::Statsd::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/datadog/statsd/connection.rb

Direct Known Subclasses

UDPConnection, UDSConnection

Instance Method Summary collapse

Constructor Details

#initialize(telemetry) ⇒ Connection

Returns a new instance of Connection.



6
7
8
 
# File 'lib/datadog/statsd/connection.rb', line 6

def initialize(telemetry)
  @telemetry = telemetry
end

Instance Method Details

#close ⇒ Object

Close the underlying socket



11
12
13
14
15
16
17
18
 
# File 'lib/datadog/statsd/connection.rb', line 11

def close
  begin
    @socket && @socket.close if instance_variable_defined?(:@socket)
  rescue StandardError => boom
    logger.error { "Statsd: #{boom.class} #{boom}" } if logger
  end
  @socket = nil
end

#write(payload) ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/datadog/statsd/connection.rb', line 20

def write(payload)
  logger.debug { "Statsd: #{payload}" } if logger

  flush_telemetry = telemetry.flush?

  payload += telemetry.flush if flush_telemetry

  send_message(payload)

  telemetry.reset if flush_telemetry

  telemetry.sent(packets: 1, bytes: payload.length)
rescue StandardError => boom
  # Try once to reconnect if the socket has been closed
  retries ||= 1
  if retries <= 1 &&
    (boom.is_a?(Errno::ENOTCONN) or
     boom.is_a?(Errno::ECONNREFUSED) or
     boom.is_a?(IOError) && boom.message =~ /closed stream/i)
    retries += 1
    begin
      close
      retry
    rescue StandardError => e
      boom = e
    end
  end

  telemetry.dropped(packets: 1, bytes: payload.length)
  logger.error { "Statsd: #{boom.class} #{boom}" } if logger
  nil
end