public static void UpdateQueueStatistics(ResourceCalculator calculator, CSQueue childQueue
, CSQueue parentQueue, Org.Apache.Hadoop.Yarn.Api.Records.Resource clusterResource
, Org.Apache.Hadoop.Yarn.Api.Records.Resource minimumAllocation)
{
Org.Apache.Hadoop.Yarn.Api.Records.Resource queueLimit = Resources.None();
Org.Apache.Hadoop.Yarn.Api.Records.Resource usedResources = childQueue.GetUsedResources
();
float absoluteUsedCapacity = 0.0f;
float usedCapacity = 0.0f;
if (Resources.GreaterThan(calculator, clusterResource, clusterResource, Resources
.None()))
{
queueLimit = Resources.Multiply(clusterResource, childQueue.GetAbsoluteCapacity()
);
absoluteUsedCapacity = Resources.Divide(calculator, clusterResource, usedResources
, clusterResource);
usedCapacity = Resources.Equals(queueLimit, Resources.None()) ? 0 : Resources.Divide
(calculator, clusterResource, usedResources, queueLimit);
}
childQueue.SetUsedCapacity(usedCapacity);
childQueue.SetAbsoluteUsedCapacity(absoluteUsedCapacity);
Org.Apache.Hadoop.Yarn.Api.Records.Resource available = Resources.Subtract(queueLimit
, usedResources);
childQueue.GetMetrics().SetAvailableResourcesToQueue(Resources.Max(calculator, clusterResource
, available, Resources.None()));
}
/// <exception cref="System.IO.IOException"/>
public AbstractCSQueue(CapacitySchedulerContext cs, string queueName, CSQueue parent
, CSQueue old)
{
// Track resource usage-by-label like used-resource/pending-resource, etc.
// Track capacities like used-capcity/abs-used-capacity/capacity/abs-capacity,
// etc.
this.labelManager = cs.GetRMContext().GetNodeLabelManager();
this.parent = parent;
this.queueName = queueName;
this.resourceCalculator = cs.GetResourceCalculator();
// must be called after parent and queueName is set
this.metrics = old != null?old.GetMetrics() : QueueMetrics.ForQueue(GetQueuePath
(), parent, cs.GetConfiguration().GetEnableUserMetrics(), cs.GetConf());
this.csContext = cs;
this.minimumAllocation = csContext.GetMinimumResourceCapability();
// initialize ResourceUsage
queueUsage = new ResourceUsage();
queueEntity = new PrivilegedEntity(PrivilegedEntity.EntityType.Queue, GetQueuePath
());
// initialize QueueCapacities
queueCapacities = new QueueCapacities(parent == null);
}