org.apache.druid.server.coordinator.duty

Class KillUnusedSegments

java.lang.Object

org.apache.druid.server.coordinator.duty.KillUnusedSegments

All Implemented Interfaces:

CoordinatorDuty

public class KillUnusedSegments
extends Object
implements CoordinatorDuty

Completely removes information about unused segments who have an interval end that comes before now - retainDuration from the metadata store. retainDuration can be a positive or negative duration, negative meaning the interval end target will be in the future. Also, retainDuration can be ignored, meaning that there is no upper bound to the end interval of segments that will be killed. This action is called "to kill a segment".

See org.apache.druid.indexing.common.task.KillUnusedSegmentsTask.

Constructor Summary

Constructors

Constructor and Description
KillUnusedSegments(SegmentsMetadataManager segmentsMetadataManager, IndexingServiceClient indexingServiceClient, DruidCoordinatorConfig config)

Method Summary

Modifier and Type	Method and Description
DruidCoordinatorRuntimeParams	run(DruidCoordinatorRuntimeParams params) Implementations of this method run various activities performed by the coordinator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KillUnusedSegments

@Inject
public KillUnusedSegments(SegmentsMetadataManager segmentsMetadataManager,
                                  IndexingServiceClient indexingServiceClient,
                                  DruidCoordinatorConfig config)

Method Detail

run

public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)

Description copied from interface: CoordinatorDuty

Implementations of this method run various activities performed by the coordinator. Input params can be used and modified. The returned DruidCoordinatorRuntimeParams is passed to the next duty.

Specified by:

run in interface CoordinatorDuty

Returns:

same as input or a modified value to be used by next duty. Null return values will prevent subsequent CoordinatorDuty objects (see the order in the lists passed into the constructor of DruidCoordinator.DutiesRunnable) from running until the next cycle.