Package 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
    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 Details

    • 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.