Esempio n. 1
0
func (db *serviceClient) NewBBSLockRunner(logger lager.Logger, bbsPresence *models.BBSPresence, retryInterval, lockTTL time.Duration) (ifrit.Runner, error) {
	bbsPresenceJSON, err := models.ToJSON(bbsPresence)
	if err != nil {
		return nil, err
	}
	return locket.NewLock(logger, db.consulClient, locket.LockSchemaPath("bbs_lock"), bbsPresenceJSON, db.clock, retryInterval, lockTTL), nil
}
Esempio n. 2
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func (t *ConsulHelper) RegisterCell(cell *models.CellPresence) {
	var err error
	jsonBytes, err := json.Marshal(cell)
	Expect(err).NotTo(HaveOccurred())

	// Use NewLock instead of NewPresence in order to block on the cell being registered
	runner := locket.NewLock(t.logger, t.consulClient, bbs.CellSchemaPath(cell.CellId), jsonBytes, clock.NewClock(), locket.RetryInterval, locket.LockTTL)
	ifrit.Invoke(runner)

	Expect(err).NotTo(HaveOccurred())
}
Esempio n. 3
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	"github.com/tedsuo/ifrit"
	"github.com/tedsuo/ifrit/ginkgomon"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

var _ = Describe("Ping API", func() {
	Describe("Protobuf Ping", func() {
		It("returns true when the bbs is running", func() {
			By("having the bbs down", func() {
				Expect(client.Ping(logger)).To(BeFalse())
			})

			By("starting the bbs without a lock", func() {
				competingBBSLock := locket.NewLock(logger, consulClient, locket.LockSchemaPath("bbs_lock"), []byte{}, clock.NewClock(), locket.RetryInterval, locket.DefaultSessionTTL)
				competingBBSLockProcess := ifrit.Invoke(competingBBSLock)
				defer ginkgomon.Kill(competingBBSLockProcess)

				bbsRunner = testrunner.New(bbsBinPath, bbsArgs)
				bbsRunner.StartCheck = "bbs.lock.acquiring-lock"
				bbsProcess = ginkgomon.Invoke(bbsRunner)

				Expect(client.Ping(logger)).To(BeFalse())
			})

			By("finally acquiring the lock", func() {
				Eventually(func() bool {
					return client.Ping(logger)
				}).Should(BeTrue())
			})
Esempio n. 4
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		lockKeyMetric := strings.Replace(lockKey, "/", "-", -1)
		lockHeldMetricName = "LockHeld." + lockKeyMetric
		lockUptimeMetricName = "LockHeldDuration." + lockKeyMetric
		lockValue = []byte("some-value")

		retryInterval = 500 * time.Millisecond
		lockTTL = 5 * time.Second
		logger = lagertest.NewTestLogger("locket")

		sender = fake.NewFakeMetricSender()
		metrics.Initialize(sender, nil)
	})

	JustBeforeEach(func() {
		clock = fakeclock.NewFakeClock(time.Now())
		lockRunner = locket.NewLock(logger, consulClient, lockKey, lockValue, clock, retryInterval, lockTTL)
	})

	AfterEach(func() {
		ginkgomon.Kill(lockProcess)
	})

	var shouldEventuallyHaveNumSessions = func(numSessions int) {
		Eventually(func() int {
			sessions, _, err := consulClient.Session().List(nil)
			Expect(err).NotTo(HaveOccurred())
			return len(sessions)
		}).Should(Equal(numSessions))
	}

	Context("When consul is running", func() {