io.druid.server.coordinator

Interface BalancerStrategy

All Known Implementing Classes:

CachingCostBalancerStrategy, CostBalancerStrategy, DiskNormalizedCostBalancerStrategy, RandomBalancerStrategy

public interface BalancerStrategy

Method Summary

Modifier and Type	Method and Description
void	emitStats(String tier, CoordinatorStats stats, List<ServerHolder> serverHolderList)
ServerHolder	findNewSegmentHomeBalancer(DataSegment proposalSegment, List<ServerHolder> serverHolders)
ServerHolder	findNewSegmentHomeReplicator(DataSegment proposalSegment, List<ServerHolder> serverHolders)
BalancerSegmentHolder	pickSegmentToMove(List<ServerHolder> serverHolders)

Method Detail

findNewSegmentHomeBalancer

ServerHolder findNewSegmentHomeBalancer(DataSegment proposalSegment,
                                        List<ServerHolder> serverHolders)

findNewSegmentHomeReplicator

ServerHolder findNewSegmentHomeReplicator(DataSegment proposalSegment,
                                          List<ServerHolder> serverHolders)

pickSegmentToMove

BalancerSegmentHolder pickSegmentToMove(List<ServerHolder> serverHolders)

emitStats

void emitStats(String tier,
               CoordinatorStats stats,
               List<ServerHolder> serverHolderList)