Esempio n. 1
0
func (sinkManager *SinkManager) SendSyslogErrorToLoggregator(errorMsg, appId string) {
	sinkManager.logger.Warnf(errorMsg)
	logMessage, err := logmessage.GenerateMessage(logmessage.LogMessage_ERR, errorMsg, appId, "LGR")
	if err == nil {
		sinkManager.errorChannel <- logMessage
	} else {
		sinkManager.logger.Warnf("Error marshalling message: %v", err)
	}
}
Esempio n. 2
0
func (messageRouter *messageRouter) sendLoggregatorErrorMessage(errorMsg, appId string) {
	messageRouter.logger.Warnf(errorMsg)
	logMessage, err := logmessage.GenerateMessage(logmessage.LogMessage_ERR, errorMsg, appId, "LGR")
	if err == nil {
		messageRouter.errorChannel <- logMessage
	} else {
		messageRouter.logger.Warnf("Error marshalling message: %v", err)
	}
}
Esempio n. 3
0
func (s *SyslogSink) Run() {
	s.logger.Infof("Syslog Sink %s: Running.", s.drainUrl)
	defer s.logger.Errorf("Syslog Sink %s: Stopped. This should never happen", s.drainUrl)

	backoffStrategy := newExponentialRetryStrategy()
	numberOfTries := 0

	buffer := runTruncatingBuffer(s, 100, s.Logger())
	for {
		s.logger.Debugf("Syslog Sink %s: Starting loop. Current backoff: %v", s.drainUrl, backoffStrategy(numberOfTries))

		select {
		case <-s.disconnectChannel:
			return
		case <-time.After(backoffStrategy(numberOfTries)):
		}

		if !s.syslogWriter.IsConnected() {
			s.logger.Debugf("Syslog Sink %s: Not connected. Trying to connect.", s.drainUrl)
			err := s.syslogWriter.Connect()
			if err != nil {
				errorMsg := fmt.Sprintf("Syslog Sink %s: Error when dialing out. Backing off for %v. Err: %v", s.drainUrl, backoffStrategy(numberOfTries+1), err)
				numberOfTries++

				s.logger.Warnf(errorMsg)
				logMessage, err := logmessage.GenerateMessage(logmessage.LogMessage_ERR, errorMsg, s.appId, "LGR")
				if err == nil {
					s.errorChannel <- logMessage
				} else {
					s.logger.Warnf("Error marshalling message: %v", err)
				}
				continue
			}
			s.logger.Infof("Syslog Sink %s: successfully connected.", s.drainUrl)
			s.syslogWriter.SetConnected(true)
			numberOfTries = 0
			defer s.syslogWriter.Close()
		}

		s.logger.Debugf("Syslog Sink %s: Waiting for activity\n", s.drainUrl)

		message, ok := <-buffer.GetOutputChannel()
		if !ok {
			s.logger.Debugf("Syslog Sink %s: Closed listener channel detected. Closing.\n", s.drainUrl)
			return
		}

		s.logger.Debugf("Syslog Sink %s: Got %d bytes. Sending data\n", s.drainUrl, message.GetRawMessageLength())

		var err error

		switch message.GetLogMessage().GetMessageType() {
		case logmessage.LogMessage_OUT:
			_, err = s.syslogWriter.WriteStdout(message.GetLogMessage().GetMessage(), message.GetLogMessage().GetSourceName(), *message.GetLogMessage().Timestamp)
		case logmessage.LogMessage_ERR:
			_, err = s.syslogWriter.WriteStderr(message.GetLogMessage().GetMessage(), message.GetLogMessage().GetSourceName(), *message.GetLogMessage().Timestamp)
		}
		if err != nil {
			s.logger.Debugf("Syslog Sink %s: Error when trying to send data to sink. Backing off. Err: %v\n", s.drainUrl, err)
			numberOfTries++
			s.syslogWriter.SetConnected(false)
		} else {
			s.logger.Debugf("Syslog Sink %s: Successfully sent data\n", s.drainUrl)
			numberOfTries = 0
			atomic.AddUint64(s.sentMessageCount, 1)
			atomic.AddUint64(s.sentByteCount, uint64(message.GetRawMessageLength()))
		}
	}
}