Uses of Interface
org.apache.hadoop.net.Node

Packages that use Node

Package	Description
org.apache.hadoop.net	Network-related classes.

Uses of Node in org.apache.hadoop.net

Subinterfaces of Node in org.apache.hadoop.net

Modifier and Type	Interface	Description
interface	InnerNode

Classes in org.apache.hadoop.net that implement Node

Modifier and Type	Class	Description
class	InnerNodeImpl	InnerNode represents a switch/router of a data center or rack.
class	NodeBase	A base class that implements interface Node

Fields in org.apache.hadoop.net declared as Node

Modifier and Type	Field	Description
protected Node	NodeBase.parent

Fields in org.apache.hadoop.net with type parameters of type Node

Modifier and Type	Field	Description
protected final List<Node>	InnerNodeImpl.children
protected final Map<String,Node>	InnerNodeImpl.childrenMap

Methods in org.apache.hadoop.net with type parameters of type Node

Modifier and Type	Method	Description
<T extends Node> void	NetworkTopology.sortByDistance(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader with secondary sort.
<T extends Node> void	NetworkTopology.sortByDistanceUsingNetworkLocation(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader.

Methods in org.apache.hadoop.net that return Node

Modifier and Type	Method	Description
Node	NetworkTopology.chooseRandom(String scope)	Randomly choose a node.
protected Node	NetworkTopology.chooseRandom(String scope, String excludedScope, Collection<Node> excludedNodes)
Node	NetworkTopology.chooseRandom(String scope, Collection<Node> excludedNodes)	Randomly choose one node from scope.
Node	InnerNode.getLeaf(int leafIndex, Node excludedNode)	get leafIndex leaf of this subtree if it is not in the excludedNode
Node	InnerNodeImpl.getLeaf(int leafIndex, Node excludedNode)
Node	InnerNode.getLoc(String loc)	Given a node's string representation, return a reference to the node
Node	InnerNodeImpl.getLoc(String loc)
Node	NetworkTopology.getNode(String loc)	Given a string representation of a node, return its reference
protected Node	NetworkTopology.getNodeForNetworkLocation(Node node)	Return a reference to the node given its string representation.
protected Node	NetworkTopologyWithNodeGroup.getNodeForNetworkLocation(Node node)
Node	Node.getParent()
Node	NodeBase.getParent()

Methods in org.apache.hadoop.net that return types with arguments of type Node

Modifier and Type	Method	Description
List<Node>	InnerNode.getChildren()
List<Node>	InnerNodeImpl.getChildren()
List<Node>	NetworkTopology.getDatanodesInRack(String loc)	Given a string representation of a rack, return its children
List<Node>	NetworkTopology.getLeaves(String scope)	return leaves in scope

Methods in org.apache.hadoop.net with parameters of type Node

Modifier and Type	Method	Description
boolean	InnerNode.add(Node n)	Add node n to the subtree of this node
boolean	InnerNodeImpl.add(Node n)
void	NetworkTopology.add(Node node)	Add a leaf node Update node counter & rack counter if necessary
void	NetworkTopologyWithNodeGroup.add(Node node)	Add a leaf node Update node counter & rack counter if necessary
boolean	NetworkTopology.contains(Node node)	Check if the tree contains node node
void	NetworkTopology.decommissionNode(Node node)	Update empty rack number when remove a node like decommission.
int	NetworkTopology.getDistance(Node node1, Node node2)	Return the distance between two nodes It is assumed that the distance from one node to its parent is 1 The distance between two nodes is calculated by summing up their distances to their closest common ancestor.
static int	NetworkTopology.getDistanceByPath(Node node1, Node node2)	Return the distance between two nodes by comparing their network paths without checking if they belong to the same ancestor node by reference.
Node	InnerNode.getLeaf(int leafIndex, Node excludedNode)	get leafIndex leaf of this subtree if it is not in the excludedNode
Node	InnerNodeImpl.getLeaf(int leafIndex, Node excludedNode)
String	InnerNodeImpl.getNextAncestorName(Node n)
protected Node	NetworkTopology.getNodeForNetworkLocation(Node node)	Return a reference to the node given its string representation.
protected Node	NetworkTopologyWithNodeGroup.getNodeForNetworkLocation(Node node)
static String	NodeBase.getPath(Node node)	Get the path of a node
static String[]	NodeBase.getPathComponents(Node node)	Get the path components of a node.
protected int	NetworkTopology.getWeight(Node reader, Node node)	Returns an integer weight which specifies how far away {node} is away from {reader}.
protected int	NetworkTopologyWithNodeGroup.getWeight(Node reader, Node node)
protected static int	NetworkTopology.getWeightUsingNetworkLocation(Node reader, Node node)	Returns an integer weight which specifies how far away node is from reader.
boolean	InnerNodeImpl.isAncestor(Node n)	Judge if this node is an ancestor of node n.
protected static boolean	NetworkTopology.isNodeInScope(Node node, String scope)	Checks whether a node belongs to the scope.
boolean	NetworkTopology.isOnSameNodeGroup(Node node1, Node node2)
boolean	NetworkTopologyWithNodeGroup.isOnSameNodeGroup(Node node1, Node node2)	Check if two nodes are on the same node group (hypervisor) The assumption here is: each nodes are leaf nodes.
boolean	NetworkTopology.isOnSameRack(Node node1, Node node2)	Check if two nodes are on the same rack
boolean	NetworkTopologyWithNodeGroup.isOnSameRack(Node node1, Node node2)
boolean	InnerNodeImpl.isParent(Node n)	Judge if this node is the parent of node n.
protected boolean	NetworkTopology.isSameParents(Node node1, Node node2)	Compare the parents of each node for equality
void	NetworkTopology.recommissionNode(Node node)	Update empty rack number when add a node like recommission.
boolean	InnerNode.remove(Node n)	Remove node n from the subtree of this node
boolean	InnerNodeImpl.remove(Node n)
void	NetworkTopology.remove(Node node)	Remove a node Update node counter and rack counter if necessary
void	NetworkTopologyWithNodeGroup.remove(Node node)	Remove a node Update node counter and rack counter if necessary
void	Node.setParent(Node parent)	Set this node's parent
void	NodeBase.setParent(Node parent)	Set this node's parent
void	NetworkTopology.shuffle(Node[] nodes, int activeLen)	Randomly permute the active nodes of the node array.
void	NetworkTopology.sortByDistance(Node reader, Node[] nodes, int activeLen)	Sort nodes array by network distance to reader.
<T extends Node> void	NetworkTopology.sortByDistance(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader with secondary sort.
<T extends Node> void	NetworkTopology.sortByDistance(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader with secondary sort.
void	NetworkTopologyWithNodeGroup.sortByDistance(Node reader, Node[] nodes, int activeLen)	Sort nodes array by their distances to reader.
void	NetworkTopology.sortByDistanceUsingNetworkLocation(Node reader, Node[] nodes, int activeLen)	Sort nodes array by network distance to reader with secondary sort.
<T extends Node> void	NetworkTopology.sortByDistanceUsingNetworkLocation(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader.
<T extends Node> void	NetworkTopology.sortByDistanceUsingNetworkLocation(Node reader, T[] nodes, int activeLen, Consumer<List<T>> secondarySort)	Sort nodes array by network distance to reader.

Method parameters in org.apache.hadoop.net with type arguments of type Node

Modifier and Type	Method	Description
protected Node	NetworkTopology.chooseRandom(String scope, String excludedScope, Collection<Node> excludedNodes)
Node	NetworkTopology.chooseRandom(String scope, Collection<Node> excludedNodes)	Randomly choose one node from scope.
int	NetworkTopology.countNumOfAvailableNodes(String scope, Collection<Node> excludedNodes)	return the number of leaves in scope but not in excludedNodes if scope starts with ~, return the number of nodes that are not in scope and excludedNodes;

Constructors in org.apache.hadoop.net with parameters of type Node

Modifier	Constructor	Description
	NodeBase(String name, String location, Node parent, int level)	Construct a node from its name and its location