// 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
}
// 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
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 _, pod := range pods {
timestamp, err := rc.updatePod(pod)
if err != nil {
return fmt.Errorf("Failed to Update Pod Information: %s", err)
}
latest_time = latestTimestamp(latest_time, timestamp)
}
free_containers := c.GetFreeContainers(rc.timestamp, zero)
for _, ce := range free_containers {
timestamp, err := rc.updateFreeContainer(ce)
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
}