Uses of Class
org.apache.druid.server.coordinator.ServerHolder

Packages that use ServerHolder

Package	Description
org.apache.druid.server.coordinator

Uses of ServerHolder in org.apache.druid.server.coordinator

Methods in org.apache.druid.server.coordinator that return ServerHolder

Modifier and Type	Method and Description
ServerHolder	BalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders) Find the best server to move a DataSegment to according the the balancing strategy.
ServerHolder	RandomBalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	CostBalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	BalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders) Find the best server on which to place a DataSegment replica according to the balancing strategy
ServerHolder	RandomBalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	CostBalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders)

Methods in org.apache.druid.server.coordinator that return types with arguments of type ServerHolder

Modifier and Type	Method and Description
protected Pair<Double,ServerHolder>	CostBalancerStrategy.chooseBestServer(DataSegment proposalSegment, Iterable<ServerHolder> serverHolders, boolean includeCurrentServer) For assignment, we want to move to the lowest cost server that isn't already serving the segment.
Collection<ServerHolder>	DruidCluster.getAllServers()
Set<ServerHolder>	DruidCluster.getBrokers()
Map<String,NavigableSet<ServerHolder>>	DruidCluster.getHistoricals()
NavigableSet<ServerHolder>	DruidCluster.getHistoricalsByTier(String tier)
Set<ServerHolder>	DruidCluster.getRealtimes()
Iterable<NavigableSet<ServerHolder>>	DruidCluster.getSortedHistoricalsByTier()
default Iterator<ServerHolder>	BalancerStrategy.pickServersToDrop(DataSegment toDropSegment, NavigableSet<ServerHolder> serverHolders) Returns an iterator for a set of servers to drop from, ordered by preference of which server to drop from first for a given drop strategy.
Iterator<ServerHolder>	RandomBalancerStrategy.pickServersToDrop(DataSegment toDropSegment, NavigableSet<ServerHolder> serverHolders)
Iterator<ServerHolder>	CostBalancerStrategy.pickServersToDrop(DataSegment toDrop, NavigableSet<ServerHolder> serverHolders)

Methods in org.apache.druid.server.coordinator with parameters of type ServerHolder

Modifier and Type	Method and Description
void	DruidCluster.add(ServerHolder serverHolder)
int	ServerHolder.compareTo(ServerHolder serverHolder)
protected double	DiskNormalizedCostBalancerStrategy.computeCost(DataSegment proposalSegment, ServerHolder server, boolean includeCurrentServer) Averages the cost obtained from CostBalancerStrategy.
protected double	CachingCostBalancerStrategy.computeCost(DataSegment proposalSegment, ServerHolder server, boolean includeCurrentServer)
protected double	CostBalancerStrategy.computeCost(DataSegment proposalSegment, ServerHolder server, boolean includeCurrentServer)

Method parameters in org.apache.druid.server.coordinator with type arguments of type ServerHolder

Modifier and Type	Method and Description
double	CostBalancerStrategy.calculateInitialTotalCost(List<ServerHolder> serverHolders) Calculates the initial cost of the Druid segment configuration.
double	CostBalancerStrategy.calculateNormalization(List<ServerHolder> serverHolders) Calculates the cost normalization.
protected Pair<Double,ServerHolder>	CostBalancerStrategy.chooseBestServer(DataSegment proposalSegment, Iterable<ServerHolder> serverHolders, boolean includeCurrentServer) For assignment, we want to move to the lowest cost server that isn't already serving the segment.
void	BalancerStrategy.emitStats(String tier, CoordinatorStats stats, List<ServerHolder> serverHolderList) Add balancing strategy stats during the 'balanceTier' operation of BalanceSegments to be included
void	RandomBalancerStrategy.emitStats(String tier, CoordinatorStats stats, List<ServerHolder> serverHolderList)
void	CostBalancerStrategy.emitStats(String tier, CoordinatorStats stats, List<ServerHolder> serverHolderList)
ServerHolder	BalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders) Find the best server to move a DataSegment to according the the balancing strategy.
ServerHolder	RandomBalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	CostBalancerStrategy.findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	BalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders) Find the best server on which to place a DataSegment replica according to the balancing strategy
ServerHolder	RandomBalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	CostBalancerStrategy.findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders)
BalancerSegmentHolder	BalancerStrategy.pickSegmentToMove(List<ServerHolder> serverHolders, Set<String> broadcastDatasources) Pick the best segment to move from one of the supplied set of servers according to the balancing strategy.
BalancerSegmentHolder	RandomBalancerStrategy.pickSegmentToMove(List<ServerHolder> serverHolders, Set<String> broadcastDatasources)
BalancerSegmentHolder	CostBalancerStrategy.pickSegmentToMove(List<ServerHolder> serverHolders, Set<String> broadcastDatasources)
default Iterator<ServerHolder>	BalancerStrategy.pickServersToDrop(DataSegment toDropSegment, NavigableSet<ServerHolder> serverHolders) Returns an iterator for a set of servers to drop from, ordered by preference of which server to drop from first for a given drop strategy.
Iterator<ServerHolder>	RandomBalancerStrategy.pickServersToDrop(DataSegment toDropSegment, NavigableSet<ServerHolder> serverHolders)
Iterator<ServerHolder>	CostBalancerStrategy.pickServersToDrop(DataSegment toDrop, NavigableSet<ServerHolder> serverHolders)