Package org.apache.druid.server.coordinator.duty

Class MarkOvershadowedSegmentsAsUnused

java.lang.Object

org.apache.druid.server.coordinator.duty.MarkOvershadowedSegmentsAsUnused

All Implemented Interfaces:

CoordinatorDuty

public class MarkOvershadowedSegmentsAsUnused
extends Object
implements CoordinatorDuty

Marks a segment as unused if it is overshadowed by:

• a segment served by a historical or broker
• a segment that has zero required replicas and thus will never be loaded on a server

This duty runs only if the Coordinator has been running long enough to have a refreshed metadata view. This duration is controlled by the dynamic config CoordinatorDynamicConfig.markSegmentAsUnusedDelayMillis.

Constructor Summary

Constructors

Constructor	Description
MarkOvershadowedSegmentsAsUnused(MetadataAction.DeleteSegments deleteHandler)

Method Summary

Modifier and Type	Method	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 Details

MarkOvershadowedSegmentsAsUnused

public MarkOvershadowedSegmentsAsUnused(MetadataAction.DeleteSegments deleteHandler)

Method Details

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.