CoordinatorDuty (druid-server 29.0.1 API)

All Known Subinterfaces:

CoordinatorCustomDuty

All Known Implementing Classes:

BalanceSegments, CollectSegmentAndServerStats, CompactSegments, KillAuditLog, KillCompactionConfig, KillDatasourceMetadata, KillRules, KillStalePendingSegments, KillSupervisors, KillSupervisorsCustomDuty, KillUnusedSegments, MarkEternityTombstonesAsUnused, MarkOvershadowedSegmentsAsUnused, MetadataCleanupDuty, PrepareBalancerAndLoadQueues, RunRules, UnloadUnusedSegments
```
public interface CoordinatorDuty
```

Method Summary

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

- Method Detail
  - run
```
@Nullable
DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
```
    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.
    
    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.