Exemplo n.º 1
0
func (sender *Sender) sendStartMessage(startMessage models.PendingStartMessage) {
	messageToSend, shouldSend := sender.startMessageToSend(startMessage)
	if shouldSend {
		if sender.numberOfStartMessagesSent < sender.conf.SenderMessageLimit {
			sender.logger.Info("Sending message", startMessage.LogDescription())
			err := sender.messageBus.Publish(sender.conf.SenderNatsStartSubject, messageToSend.ToJSON())

			if err != nil {
				sender.logger.Error("Failed to send start message", err, startMessage.LogDescription())
				sender.didSucceed = false
				return
			}

			sender.sentStartMessages = append(sender.sentStartMessages, startMessage)

			if startMessage.KeepAlive == 0 {
				sender.queueStartMessageForDeletion(startMessage, "a sent start message with no keep alive")
			} else {
				sender.markStartMessageSent(startMessage)
			}

			sender.numberOfStartMessagesSent += 1
		}
	} else {
		sender.queueStartMessageForDeletion(startMessage, "start message that will not be sent")
	}
}
Exemplo n.º 2
0
func (a *appAnalyzer) appendStartMessageIfNotDuplicate(message models.PendingStartMessage, loggingMessage string, additionalDetails map[string]string) (didAppend bool) {
	existingMessage, alreadyQueued := a.existingPendingStartMessages[message.StoreKey()]
	if !alreadyQueued {
		a.logger.Info(fmt.Sprintf("Enqueuing Start Message: %s", loggingMessage), message.LogDescription(), additionalDetails)
		a.startMessages[message.StoreKey()] = message
		return true
	} else {
		a.logger.Info(fmt.Sprintf("Skipping Already Enqueued Start Message: %s", loggingMessage), existingMessage.LogDescription(), additionalDetails)
		return false
	}
}
Exemplo n.º 3
0
func (sender *Sender) startMessageToSend(message models.PendingStartMessage) (models.StartMessage, bool) {
	messageToSend := models.StartMessage{
		MessageId:     message.MessageId,
		AppGuid:       message.AppGuid,
		AppVersion:    message.AppVersion,
		InstanceIndex: message.IndexToStart,
	}

	if message.SkipVerification {
		sender.logger.Info("Sending start message: message is marked with SkipVerification", message.LogDescription())
		return messageToSend, true
	}

	appKey := sender.store.AppKey(message.AppGuid, message.AppVersion)
	app, found := sender.apps[appKey]

	if !found {
		sender.logger.Info("Skipping sending start message: app is no longer desired", message.LogDescription())
		return models.StartMessage{}, false
	}

	if !app.IsDesired() {
		sender.logger.Info("Skipping sending start message: app is no longer desired", message.LogDescription(), app.LogDescription())
		return models.StartMessage{}, false
	}

	if !app.IsIndexDesired(message.IndexToStart) {
		sender.logger.Info("Skipping sending start message: instance index is beyond the desired # of instances", message.LogDescription(), app.LogDescription())
		return models.StartMessage{}, false
	}

	if app.HasStartingOrRunningInstanceAtIndex(message.IndexToStart) {
		sender.logger.Info("Skipping sending start message: instance is already running", message.LogDescription(), app.LogDescription())
		return models.StartMessage{}, false
	}

	sender.logger.Info("Sending start message: instance is not running at desired index", message.LogDescription(), app.LogDescription())
	return messageToSend, true
}
Exemplo n.º 4
0
func (sender *Sender) queueStartMessageForDeletion(startMessage models.PendingStartMessage, reason string) {
	sender.logger.Info(fmt.Sprintf("Deleting %s", reason), startMessage.LogDescription())
	sender.startMessagesToDelete = append(sender.startMessagesToDelete, startMessage)
}