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")
}
}
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
}
}
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
}
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)
}
func (sender *Sender) markStartMessageSent(startMessage models.PendingStartMessage) {
startMessage.SentOn = sender.timeProvider.Time().Unix()
sender.startMessagesToSave = append(sender.startMessagesToSave, startMessage)
}
func (sender *Sender) markStartMessageSent(startMessage models.PendingStartMessage) {
startMessage.SentOn = sender.currentTime.Unix()
sender.startMessagesToSave = append(sender.startMessagesToSave, startMessage)
}
"github.com/cloudfoundry/hm9000/models"
. "github.com/cloudfoundry/hm9000/store"
"github.com/cloudfoundry/hm9000/testhelpers/fakelogger"
"github.com/cloudfoundry/storeadapter"
"github.com/cloudfoundry/storeadapter/etcdstoreadapter"
"github.com/cloudfoundry/storeadapter/storenodematchers"
"github.com/cloudfoundry/storeadapter/workerpool"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Storing PendingStartMessages", func() {
var (
store Store
storeAdapter storeadapter.StoreAdapter
conf *config.Config
message1 models.PendingStartMessage
message2 models.PendingStartMessage
message3 models.PendingStartMessage
)
BeforeEach(func() {
var err error
conf, err = config.DefaultConfig()
Ω(err).ShouldNot(HaveOccurred())
storeAdapter = etcdstoreadapter.NewETCDStoreAdapter(etcdRunner.NodeURLS(), workerpool.NewWorkerPool(conf.StoreMaxConcurrentRequests))
err = storeAdapter.Connect()
Ω(err).ShouldNot(HaveOccurred())
message1 = models.NewPendingStartMessage(time.Unix(100, 0), 10, 4, "ABC", "123", 1, 1.0, models.PendingStartMessageReasonInvalid)
message2 = models.NewPendingStartMessage(time.Unix(100, 0), 10, 4, "DEF", "123", 1, 1.0, models.PendingStartMessageReasonInvalid)
message3 = models.NewPendingStartMessage(time.Unix(100, 0), 10, 4, "ABC", "456", 1, 1.0, models.PendingStartMessageReasonInvalid)
})
})
Context("when there are no stop messages in the queue", func() {
It("should not send any messages", func() {
err := sender.Send()
Ω(err).ShouldNot(HaveOccurred())
Ω(messageBus.PublishedMessages).Should(BeEmpty())
})
})
Context("when there are start messages", func() {
var keepAliveTime int
var sentOn int64
var err error
var pendingMessage models.PendingStartMessage
var storeSetErrInjector *fakestoreadapter.FakeStoreAdapterErrorInjector
JustBeforeEach(func() {
store.SyncDesiredState(app.DesiredState(1))
pendingMessage = models.NewPendingStartMessage(time.Unix(100, 0), 30, keepAliveTime, app.AppGuid, app.AppVersion, 0, 1.0, models.PendingStartMessageReasonInvalid)
pendingMessage.SentOn = sentOn
store.SavePendingStartMessages(
pendingMessage,
)
storeAdapter.SetErrInjector = storeSetErrInjector
err = sender.Send()
})
BeforeEach(func() {
keepAliveTime = 0