Package com.yahoo.search.dispatch.searchcluster

Class Group

java.lang.Object

com.yahoo.search.dispatch.searchcluster.Group

public class Group
extends Object

A group in a search cluster. This class is multithread safe.

Author:

bratseth, ollivir

Constructor Summary

Constructors

Constructor	Description
Group(int id, List<Node> nodes)

Method Summary

Modifier and Type	Method	Description
void	aggregateNodeValues()
boolean	equals(Object other)
boolean	fullCoverageStatusChanged(boolean hasFullCoverageNow)
int	hashCode()
boolean	hasSufficientCoverage()	Returns whether this group has sufficient active documents (compared to other groups) that is should receive traffic
int	id()	Returns the unique identity of this group.
boolean	isBalanced()	Returns whether the nodes in the group have about the same number of documents
boolean	isBlockingWrites()	Returns whether any node in this group is currently blocking write operations
boolean	isSparse()	Returns whether this group has too few documents per node to expect it to be balanced
com.google.common.collect.ImmutableList<Node>	nodes()	Returns the nodes in this group as an immutable list
String	toString()
int	workingNodes()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Group

public Group(int id,
             List<Node> nodes)

Method Detail

id

public int id()

Returns the unique identity of this group. NOTE: This is a contiguous index from 0, NOT necessarily the group id assigned by the user or node repo.

nodes

public com.google.common.collect.ImmutableList<Node> nodes()

Returns the nodes in this group as an immutable list

hasSufficientCoverage

public boolean hasSufficientCoverage()

Returns whether this group has sufficient active documents (compared to other groups) that is should receive traffic

workingNodes

public int workingNodes()

aggregateNodeValues

public void aggregateNodeValues()

isBlockingWrites

public boolean isBlockingWrites()

Returns whether any node in this group is currently blocking write operations

isBalanced

public boolean isBalanced()

Returns whether the nodes in the group have about the same number of documents

isSparse

public boolean isSparse()

Returns whether this group has too few documents per node to expect it to be balanced

fullCoverageStatusChanged

public boolean fullCoverageStatusChanged(boolean hasFullCoverageNow)

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object