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

Class CoordinatorDutyUtils

java.lang.Object

org.apache.druid.server.coordinator.duty.CoordinatorDutyUtils

public class CoordinatorDutyUtils
extends Object

utilty methods that are useful for coordinator duties

Constructor Summary

Constructors

Constructor	Description
CoordinatorDutyUtils()

Method Summary

Modifier and Type	Method	Description
static List<TaskStatusPlus>	getStatusOfActiveTasks(OverlordClient overlordClient, com.google.common.base.Predicate<TaskStatusPlus> taskPredicate)	Fetches active task statuses that match the given predicate.
static int	getTotalWorkerCapacity(OverlordClient overlordClient)	Returns the total worker capacity in the cluster, including autoscaling, if enabled.

Methods inherited from class java.lang.Object

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

Constructor Details

CoordinatorDutyUtils

public CoordinatorDutyUtils()

Method Details

getTotalWorkerCapacity

public static int getTotalWorkerCapacity(@Nonnull
 OverlordClient overlordClient)

Returns the total worker capacity in the cluster, including autoscaling, if enabled.

Parameters:

overlordClient - The overlord client used to get worker capacity info.

Returns:

the total worker capacity in the cluster, including autoscaling, if enabled.

getStatusOfActiveTasks

public static List<TaskStatusPlus> getStatusOfActiveTasks(@Nonnull
 OverlordClient overlordClient,
 com.google.common.base.Predicate<TaskStatusPlus> taskPredicate)

Fetches active task statuses that match the given predicate. Task statuses with null types are considered to satisfy the predicate too.

Parameters:

overlordClient - The overlord client to use to retrieve the list of active tasks.

taskPredicate - The predicate to match against the list of retrieved task statuses. This predicate will never be called with a null task status.

Returns:

Active task statuses that match the given predicate.