Exemplo n.º 1
0
func NewManager(sources []source_api.Source, sinkManager sinks.ExternalSinkManager, res, bufferDuration time.Duration, c cache.Cache, useModel bool, modelRes time.Duration) (Manager, error) {
	var newModel model.Model = nil
	if useModel {
		newModel = model.NewModel(modelRes)
		// Temporary semi-hack to get model storage garbage-collected.
		c.AddCacheListener(newModel.GetCacheListener())
	}
	return &realManager{
		sources:      sources,
		sinkManager:  sinkManager,
		cache:        c,
		model:        newModel,
		lastSync:     time.Now(),
		resolution:   res,
		decoder:      sink_api.NewDecoder(),
		sinkStopChan: sinkManager.Sync(),
	}, nil
}
Exemplo n.º 2
0
// Update populates the data structure from a cache.
func (rc *realCluster) Update(c cache.Cache) error {
	var zero time.Time
	latest_time := rc.timestamp
	glog.V(2).Infoln("Schema Update operation started")

	// Invoke cache methods using the Cluster timestamp
	// Iterate through the results in time-ascending order to maintain the context for cumulative metrics

	nodes := c.GetNodes(rc.timestamp, zero)
	for i := len(nodes) - 1; i >= 0; i-- {
		timestamp, err := rc.updateNode(nodes[i])
		if err != nil {
			return fmt.Errorf("Failed to Update Node Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	pods := c.GetPods(rc.timestamp, zero)
	for i := len(pods) - 1; i >= 0; i-- {
		timestamp, err := rc.updatePod(pods[i])
		if err != nil {
			return fmt.Errorf("Failed to Update Pod Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	freeConts := c.GetFreeContainers(rc.timestamp, zero)
	for i := len(freeConts) - 1; i >= 0; i-- {
		timestamp, err := rc.updateFreeContainer(freeConts[i])
		if err != nil {
			return fmt.Errorf("Failed to Update Free Container Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	// Perform metrics aggregation
	rc.aggregationStep()

	// Update the Cluster timestamp to the latest time found in the new metrics
	rc.updateTime(latest_time)

	glog.V(2).Infoln("Schema Update operation completed")
	return nil
}
Exemplo n.º 3
0
// Update populates the data structure from a cache.
func (rc *realModel) Update(c cache.Cache) error {
	var zero time.Time
	latest_time := rc.timestamp
	glog.V(2).Infoln("Model Update operation started")

	// Invoke cache methods using the Model timestamp
	nodes := c.GetNodes(rc.timestamp, zero)
	for _, node := range nodes {
		timestamp, err := rc.updateNode(node)
		if err != nil {
			return fmt.Errorf("Failed to Update Node Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	pods := c.GetPods(rc.timestamp, zero)
	for i := len(pods) - 1; i >= 0; i-- {
		timestamp, err := rc.updatePod(pods[i])
		if err != nil {
			return fmt.Errorf("Failed to Update Pod Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	freeConts := c.GetFreeContainers(rc.timestamp, zero)
	for i := len(freeConts) - 1; i >= 0; i-- {
		timestamp, err := rc.updateFreeContainer(freeConts[i])
		if err != nil {
			return fmt.Errorf("Failed to Update Free Container Information: %s", err)
		}
		latest_time = latestTimestamp(latest_time, timestamp)
	}

	// Perform metrics aggregation
	rc.aggregationStep(latest_time)

	// Update the Model timestamp to the latest time found in the new metrics
	rc.updateTime(latest_time)

	glog.V(2).Infoln("Schema Update operation completed")
	return nil
}