KillUnusedSegments (druid-server 28.0.1 API)

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.

Field Summary

Fields
Modifier and Type	Field	Description
`static com.google.common.base.Predicate<org.apache.druid.indexer.TaskStatusPlus>`	`IS_AUTO_KILL_TASK`
`static String`	`KILL_TASK_TYPE`
`static String`	`TASK_ID_PREFIX`

Constructor Summary

Constructors
Constructor	Description
`KillUnusedSegments(SegmentsMetadataManager segmentsMetadataManager, OverlordClient overlordClient, DruidCoordinatorConfig config)`

Method Summary

All Methods Instance Methods Concrete Methods
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

- Field Detail
  - KILL_TASK_TYPE
```
public static final String KILL_TASK_TYPE
```
    See Also:
    
    Constant Field Values
  - TASK_ID_PREFIX
```
public static final String TASK_ID_PREFIX
```
    See Also:
    
    Constant Field Values
  - IS_AUTO_KILL_TASK
```
public static final com.google.common.base.Predicate<org.apache.druid.indexer.TaskStatusPlus> IS_AUTO_KILL_TASK
```
- Constructor Detail
  - KillUnusedSegments
```
public KillUnusedSegments(SegmentsMetadataManager segmentsMetadataManager,
                          OverlordClient overlordClient,
                          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.