org.apache.druid.server.coordinator.duty

Class KillDatasourceMetadata

java.lang.Object

org.apache.druid.server.coordinator.duty.KillDatasourceMetadata

All Implemented Interfaces:

CoordinatorDuty

public class KillDatasourceMetadata
extends Object
implements CoordinatorDuty

CoordinatorDuty for automatic deletion of datasource metadata from the datasource table in metadata storage. (Note: datasource metadata only exists for datasource created from supervisor). Note that this class relies on the supervisorSpec.getDataSources names to match with the 'datasource' column of the datasource metadata table.

Constructor Summary

Constructors

Constructor and Description
KillDatasourceMetadata(DruidCoordinatorConfig config, IndexerMetadataStorageCoordinator indexerMetadataStorageCoordinator, MetadataSupervisorManager metadataSupervisorManager)

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

KillDatasourceMetadata

@Inject
public KillDatasourceMetadata(DruidCoordinatorConfig config,
                                      IndexerMetadataStorageCoordinator indexerMetadataStorageCoordinator,
                                      MetadataSupervisorManager metadataSupervisorManager)

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.