Package com.yahoo.search.dispatch.searchcluster

Class SearchCluster

java.lang.Object

com.yahoo.search.dispatch.searchcluster.SearchCluster

All Implemented Interfaces:

NodeManager<Node>

public class SearchCluster
extends Object
implements NodeManager<Node>

A model of a search cluster we might want to dispatch queries to.

Author:

bratseth

Constructor Summary

Constructors

Constructor	Description
SearchCluster(String clusterId, AvailabilityPolicy availabilityPolicy, Collection<Node> nodes, com.yahoo.container.handler.VipStatus vipStatus, PingFactory pingFactory)
SearchCluster(String clusterId, SearchGroupsImpl groups, com.yahoo.container.handler.VipStatus vipStatus, PingFactory pingFactory)

Method Summary

Modifier and Type	Method	Description
void	addMonitoring(ClusterMonitor<Node> clusterMonitor)
void	failed(Node node)	Called by the cluster monitor when node state changes to failed
Group	group(int id)
SearchGroups	groupList()
int	groupsWithSufficientCoverage()
boolean	hasInformationAboutAllNodes()
Optional<Node>	localCorpusDispatchTarget()	Returns the single, local node we should dispatch queries directly to, or empty if we should not dispatch directly.
String	name()	Name to identify Nodemanager
void	ping(ClusterMonitor<Node> clusterMonitor, Node node, Executor executor)	Used by the cluster monitor to manage node status
void	pingIterationCompleted()	Update statistics after a round of issuing pings.
void	updateNodes(AvailabilityPolicy availabilityPolicy, Collection<Node> newNodes, ClusterMonitor<Node> monitor)	Sets the new nodes to monitor to be the new nodes, but keep any existing node instances which are equal the new ones.
void	working(Node node)	Called by the cluster monitor when node state changes to working

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SearchCluster

public SearchCluster(String clusterId,
 AvailabilityPolicy availabilityPolicy,
 Collection<Node> nodes,
 com.yahoo.container.handler.VipStatus vipStatus,
 PingFactory pingFactory)

SearchCluster

public SearchCluster(String clusterId,
 SearchGroupsImpl groups,
 com.yahoo.container.handler.VipStatus vipStatus,
 PingFactory pingFactory)

Method Details

name

public String name()

Description copied from interface: NodeManager

Name to identify Nodemanager

Specified by:

name in interface NodeManager<Node>

updateNodes

public void updateNodes(AvailabilityPolicy availabilityPolicy,
 Collection<Node> newNodes,
 ClusterMonitor<Node> monitor)

Sets the new nodes to monitor to be the new nodes, but keep any existing node instances which are equal the new ones.

addMonitoring

public void addMonitoring(ClusterMonitor<Node> clusterMonitor)

groupList

public SearchGroups groupList()

group

public Group group(int id)

groupsWithSufficientCoverage

public int groupsWithSufficientCoverage()

localCorpusDispatchTarget

public Optional<Node> localCorpusDispatchTarget()

Returns the single, local node we should dispatch queries directly to, or empty if we should not dispatch directly.

working

public void working(Node node)

Called by the cluster monitor when node state changes to working

Specified by:

working in interface NodeManager<Node>

failed

public void failed(Node node)

Called by the cluster monitor when node state changes to failed

Specified by:

failed in interface NodeManager<Node>

hasInformationAboutAllNodes

public boolean hasInformationAboutAllNodes()

ping

public void ping(ClusterMonitor<Node> clusterMonitor,
 Node node,
 Executor executor)

Used by the cluster monitor to manage node status

Specified by:

ping in interface NodeManager<Node>

pingIterationCompleted

public void pingIterationCompleted()

Update statistics after a round of issuing pings. Note that this doesn't wait for pings to return, so it will typically accumulate data from last rounds pinging, or potentially (although unlikely) some combination of new and old data.

Specified by:

pingIterationCompleted in interface NodeManager<Node>