/// <summary>
/// Create and return a container object reflecting an allocation for the
/// given appliction on the given node with the given capability and
/// priority.
/// </summary>
public virtual Container CreateContainer(FSSchedulerNode node, Org.Apache.Hadoop.Yarn.Api.Records.Resource
capability, Priority priority)
{
NodeId nodeId = node.GetRMNode().GetNodeID();
ContainerId containerId = BuilderUtils.NewContainerId(GetApplicationAttemptId(),
GetNewContainerId());
// Create the container
Container container = BuilderUtils.NewContainer(containerId, nodeId, node.GetRMNode
().GetHttpAddress(), capability, priority, null);
return(container);
}
/// <summary>
/// Whether this app has containers requests that could be satisfied on the
/// given node, if the node had full space.
/// </summary>
public virtual bool HasContainerForNode(Priority prio, FSSchedulerNode node)
{
ResourceRequest anyRequest = GetResourceRequest(prio, ResourceRequest.Any);
ResourceRequest rackRequest = GetResourceRequest(prio, node.GetRackName());
ResourceRequest nodeRequest = GetResourceRequest(prio, node.GetNodeName());
return(anyRequest != null && anyRequest.GetNumContainers() > 0 && (anyRequest.GetRelaxLocality
() || (rackRequest != null && rackRequest.GetNumContainers() > 0)) && (rackRequest
== null || rackRequest.GetRelaxLocality() || (nodeRequest != null && nodeRequest
.GetNumContainers() > 0)) && Resources.LessThanOrEqual(ResourceCalculator, null,
anyRequest.GetCapability(), node.GetRMNode().GetTotalCapability()));
}