org.apache.druid.server.coordinator.rules

Interface SegmentActionHandler

All Known Implementing Classes:

StrategicSegmentAssigner

public interface SegmentActionHandler

Performs various actions on a given segment. Used by Rules to load, drop, broadcast or delete segments.

Method Summary

Modifier and Type	Method and Description
void	broadcastSegment(DataSegment segment) Broadcasts the given segment to all servers that are broadcast targets.
void	deleteSegment(DataSegment segment) Marks the given segment as unused.
void	replicateSegment(DataSegment segment, Map<String,Integer> tierToReplicaCount) Queues load or drop of replicas of the given segment to achieve the target replication level on all historical tiers.

Method Detail

replicateSegment

void replicateSegment(DataSegment segment,
                      Map<String,Integer> tierToReplicaCount)

Queues load or drop of replicas of the given segment to achieve the target replication level on all historical tiers.

deleteSegment

void deleteSegment(DataSegment segment)

Marks the given segment as unused. Unused segments are eventually unloaded from all servers and deleted from metadata as well as deep storage.

broadcastSegment

void broadcastSegment(DataSegment segment)

Broadcasts the given segment to all servers that are broadcast targets.