Class: Fluent::LoomsystemsOutput

Inherits:
BufferedOutput
  • Object
show all
Defined in:
lib/fluent/plugin/out_loomsystems.rb

Defined Under Namespace

Classes: ConnectionFailure

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LoomsystemsOutput

Returns a new instance of LoomsystemsOutput.



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 22

def initialize
  super
end

Instance Method Details

#client ⇒ Object 



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 45

def client
 @_socket ||= if @use_ssl
    log.info "opening ssl socket"
    context    = OpenSSL::SSL::SSLContext.new
    socket     = TCPSocket.new @host, @ssl_port
    ssl_client = OpenSSL::SSL::SSLSocket.new socket, context
    sock = ssl_client.connect
  else
    TCPSocket.new @host, @port
  end

  @_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_KEEPALIVE, true)
  @_socket.setsockopt(Socket::SOL_TCP, Socket::TCP_KEEPIDLE, 10)
  @_socket.setsockopt(Socket::SOL_TCP, Socket::TCP_KEEPINTVL, 3)
  @_socket.setsockopt(Socket::SOL_TCP, Socket::TCP_KEEPCNT, 3)

  return @_socket

end

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 31

def configure(conf)
  super
end

#format(tag, time, record) ⇒ Object

This method is called when an event reaches Fluentd.



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 66

def format(tag, time, record)
  #log.info "[tag, time, record] = #{tag}, #{time}, #{record}}"
  return [tag, {"timestamp"=>time, "host"=>@host, "message"=>record}].to_msgpack
end

#send_to_loomsystems(data) ⇒ Object 



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 92

def send_to_loomsystems(data)   
  retries = 0

  begin

    # Check the connectivity and write messages
    #connected,x = client.recv(0)
    #log.trace  "Connected=#{connected},#{x}"
    #raise Errno::ECONNREFUSED, "Client has lost server connection" if connected == 0
    log.trace "New attempt to loomsystems attempt=#{retries}" if retries > 0
    log.trace "Send nb_event=#{data.size} events to loomsystems"
    data.each do |event|
      client.write(event)
    end


  # Handle some failures
  rescue Errno::EHOSTUNREACH, Errno::ECONNREFUSED, Errno::ETIMEDOUT, Errno::EPIPE => e

    if retries < @max_retries || max_retries == -1
      @_socket = nil
      a_couple_of_seconds = retries ** 2
      a_couple_of_seconds = 30 unless a_couple_of_seconds < 30
      retries += 1
      log.warn "Could not push logs to loomsystems, attempt=#{retries} max_attempts=#{max_retries} wait=#{a_couple_of_seconds}s error=#{e.message}"
      sleep a_couple_of_seconds
      retry
    end
    raise ConnectionFailure, "Could not push logs to loomsystems after #{retries} retries, #{e.message}"
  end
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 40

def shutdown
  log.info "----shutdown"
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 35

def start
  log.info "----start"
  super
end

#write(chunk) ⇒ Object

NOTE! This method is called by internal thread, not Fluentd’s main thread. ‘chunk’ is a buffer chunk that includes multiple formatted events.



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# File 'lib/fluent/plugin/out_loomsystems.rb', line 73

def write(chunk) 
  messages = Array.new
  chunk.msgpack_each do |tag, record|
    next unless record.is_a? Hash
    next unless record.has_key? "message"

    if @include_tag_key
      record[@tag_key] = tag
    end
    if @use_json
      messages.push Yajl.dump(record) + "\n"
    else
      messages.push record["message"].rstrip() + "\n"
    end
  end
  send_to_loomsystems(messages)

end