Ejemplo n.º 1
0
func ConfigureCapacity(
	gardenClient garden_client.Client,
	memoryMBFlag string,
	diskMBFlag string,
) (executor.ExecutorResources, error) {
	gardenCapacity, err := gardenClient.Capacity()
	if err != nil {
		return executor.ExecutorResources{}, err
	}

	memory, err := memoryInMB(gardenCapacity, memoryMBFlag)
	if err != nil {
		return executor.ExecutorResources{}, err
	}

	disk, err := diskInMB(gardenCapacity, diskMBFlag)
	if err != nil {
		return executor.ExecutorResources{}, err
	}

	return executor.ExecutorResources{
		MemoryMB:   memory,
		DiskMB:     disk,
		Containers: int(gardenCapacity.MaxContainers),
	}, nil
}
func destroyAllContainers(client client.Client) {
	containers, err := client.Containers(nil)
	Ω(err).ShouldNot(HaveOccurred(), "Error while listing containers")

	for _, container := range containers {
		err = client.Destroy(container.Handle())
		Ω(err).ShouldNot(HaveOccurred(), fmt.Sprintf("Error while destroying container %+v", container.Handle()))
	}
}
Ejemplo n.º 3
0
// Until we get a successful response from garden,
// periodically emit metrics saying how long we've been trying
// while retrying the connection indefinitely.
func waitForGarden(logger lager.Logger, gardenClient GardenClient.Client, clock clock.Clock) error {
	pingStart := clock.Now()
	logger = logger.Session("wait-for-garden", lager.Data{"initialTime:": pingStart})
	pingRequest := clock.NewTimer(0)
	pingResponse := make(chan error)
	heartbeatTimer := clock.NewTimer(StalledMetricHeartbeatInterval)

	for {
		select {
		case <-pingRequest.C():
			go func() {
				logger.Info("ping-garden", lager.Data{"wait-time-ns:": clock.Since(pingStart)})
				pingResponse <- gardenClient.Ping()
			}()

		case err := <-pingResponse:
			switch err.(type) {
			case nil:
				logger.Info("ping-garden-success", lager.Data{"wait-time-ns:": clock.Since(pingStart)})
				// send 0 to indicate ping responded successfully
				stalledDuration.Send(0)
				return nil
			case garden.UnrecoverableError:
				logger.Error("failed-to-ping-garden-with-unrecoverable-error", err)
				return err
			default:
				logger.Error("failed-to-ping-garden", err)
				pingRequest.Reset(PingGardenInterval)
			}

		case <-heartbeatTimer.C():
			logger.Info("emitting-stalled-garden-heartbeat", lager.Data{"wait-time-ns:": clock.Since(pingStart)})
			stalledDuration.Send(clock.Since(pingStart))
			heartbeatTimer.Reset(StalledMetricHeartbeatInterval)
		}
	}
}