Uses of Class
org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster

Packages that use BaseLoadBalancer.Cluster

Package	Description
org.apache.hadoop.hbase.master.balancer

Uses of BaseLoadBalancer.Cluster in org.apache.hadoop.hbase.master.balancer

Fields in org.apache.hadoop.hbase.master.balancer declared as BaseLoadBalancer.Cluster

Modifier and Type	Field and Description
protected BaseLoadBalancer.Cluster	StochasticLoadBalancer.CostFunction.cluster

Methods in org.apache.hadoop.hbase.master.balancer that return BaseLoadBalancer.Cluster

Modifier and Type	Method and Description
protected BaseLoadBalancer.Cluster	BaseLoadBalancer.createCluster(List<ServerName> servers, Collection<RegionInfo> regions)

Methods in org.apache.hadoop.hbase.master.balancer with parameters of type BaseLoadBalancer.Cluster

Modifier and Type	Method and Description
protected boolean	StochasticLoadBalancer.areSomeRegionReplicasColocated(BaseLoadBalancer.Cluster c)
protected boolean	BaseLoadBalancer.areSomeRegionReplicasColocated(BaseLoadBalancer.Cluster c) Subclasses should implement this to return true if the cluster has nodes that hosts multiple replicas for the same region, or, if there are multiple racks and the same rack hosts replicas of the same region
protected double	StochasticLoadBalancer.computeCost(BaseLoadBalancer.Cluster cluster, double previousCost) This is the main cost function.
private List<RegionPlan>	StochasticLoadBalancer.createRegionPlans(BaseLoadBalancer.Cluster cluster) Create all of the RegionPlan's needed to move from the initial cluster state to the desired state.
(package private) abstract BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.CandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.RandomCandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.LoadCandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.LocalityBasedCandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.RegionReplicaCandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.RegionReplicaRackCandidateGenerator.generate(BaseLoadBalancer.Cluster cluster)
protected BaseLoadBalancer.Cluster.Action	FavoredStochasticBalancer.FavoredNodeLocalityPicker.generate(BaseLoadBalancer.Cluster cluster)
(package private) BaseLoadBalancer.Cluster.Action	FavoredStochasticBalancer.FavoredNodeLoadPicker.generate(BaseLoadBalancer.Cluster cluster)
private int	FavoredStochasticBalancer.FavoredNodeLocalityPicker.getDifferentFavoredNode(BaseLoadBalancer.Cluster cluster, List<ServerName> favoredNodes, int currentServer)
(package private) long	StochasticLoadBalancer.RegionReplicaHostCostFunction.getMaxCost(BaseLoadBalancer.Cluster cluster)
private double	StochasticLoadBalancer.LocalityBasedCandidateGenerator.getWeightedLocality(BaseLoadBalancer.Cluster cluster, int region, int server)
(package private) void	StochasticLoadBalancer.CostFunction.init(BaseLoadBalancer.Cluster cluster) Called once per LB invocation to give the cost function to initialize it's state, and perform any costly calculation.
(package private) void	StochasticLoadBalancer.LocalityBasedCostFunction.init(BaseLoadBalancer.Cluster cluster)
(package private) void	StochasticLoadBalancer.RegionReplicaHostCostFunction.init(BaseLoadBalancer.Cluster cluster)
(package private) void	StochasticLoadBalancer.RegionReplicaRackCostFunction.init(BaseLoadBalancer.Cluster cluster)
protected void	StochasticLoadBalancer.initCosts(BaseLoadBalancer.Cluster cluster)
protected boolean	StochasticLoadBalancer.needsBalance(BaseLoadBalancer.Cluster cluster)
protected boolean	BaseLoadBalancer.needsBalance(BaseLoadBalancer.Cluster c)
(package private) BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.nextAction(BaseLoadBalancer.Cluster cluster)
private int	FavoredStochasticBalancer.FavoredNodeLoadPicker.pickLeastLoadedFNServer(BaseLoadBalancer.Cluster cluster, List<ServerName> favoredNodes, int currentServerIndex)
private int	StochasticLoadBalancer.LoadCandidateGenerator.pickLeastLoadedServer(BaseLoadBalancer.Cluster cluster, int thisServer)
private int	FavoredStochasticBalancer.FavoredNodeLoadPicker.pickLeastLoadedServer(BaseLoadBalancer.Cluster cluster, int thisServer)
private int	FavoredStochasticBalancer.FavoredNodeLocalityPicker.pickLowestLocalRegionOnServer(BaseLoadBalancer.Cluster cluster, int server)
private int	FavoredStochasticBalancer.FavoredNodeLoadPicker.pickMostLoadedServer(BaseLoadBalancer.Cluster cluster)
private int	StochasticLoadBalancer.LoadCandidateGenerator.pickMostLoadedServer(BaseLoadBalancer.Cluster cluster, int thisServer)
protected int	StochasticLoadBalancer.CandidateGenerator.pickOtherRandomRack(BaseLoadBalancer.Cluster cluster, int rackIndex)
protected int	StochasticLoadBalancer.CandidateGenerator.pickOtherRandomServer(BaseLoadBalancer.Cluster cluster, int serverIndex)
protected int	StochasticLoadBalancer.CandidateGenerator.pickRandomRack(BaseLoadBalancer.Cluster cluster)
protected int	StochasticLoadBalancer.CandidateGenerator.pickRandomRegion(BaseLoadBalancer.Cluster cluster, int server, double chanceOfNoSwap) From a list of regions pick a random one.
protected BaseLoadBalancer.Cluster.Action	StochasticLoadBalancer.CandidateGenerator.pickRandomRegions(BaseLoadBalancer.Cluster cluster, int thisServer, int otherServer)
protected int	StochasticLoadBalancer.CandidateGenerator.pickRandomServer(BaseLoadBalancer.Cluster cluster)
private ServerName	BaseLoadBalancer.randomAssignment(BaseLoadBalancer.Cluster cluster, RegionInfo regionInfo, List<ServerName> servers) Used to assign a single region to a random server.
private void	BaseLoadBalancer.roundRobinAssignment(BaseLoadBalancer.Cluster cluster, List<RegionInfo> regions, List<RegionInfo> unassignedRegions, List<ServerName> servers, Map<ServerName,List<RegionInfo>> assignments) Round robin a list of regions to a list of servers
private org.apache.hbase.thirdparty.com.google.common.base.Optional<BaseLoadBalancer.Cluster.Action>	StochasticLoadBalancer.LocalityBasedCandidateGenerator.tryMoveOrSwap(BaseLoadBalancer.Cluster cluster, int fromServer, int fromRegion, int toServer) Try to generate a move/swap fromRegion between fromServer and toServer such that locality is improved.
protected void	StochasticLoadBalancer.updateCostsWithAction(BaseLoadBalancer.Cluster cluster, BaseLoadBalancer.Cluster.Action action)