Package org.apache.hadoop.yarn.server.resourcemanager.reservation.planning

Class AlignedPlannerWithGreedy

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.AlignedPlannerWithGreedy

All Implemented Interfaces:

ReservationAgent

public class AlignedPlannerWithGreedy
extends Object
implements ReservationAgent

A planning algorithm that first runs LowCostAligned, and if it fails runs Greedy.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_SMOOTHNESS_FACTOR
static final String	SMOOTHNESS_FACTOR

Fields inherited from interface org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.ReservationAgent

DEFAULT_GREEDY_FAVOR_EARLY_ALLOCATION, FAVOR_EARLY_ALLOCATION

Constructor Summary

Constructors

Constructor	Description
AlignedPlannerWithGreedy()

Method Summary

Modifier and Type	Method	Description
boolean	createReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId, String user, Plan plan, org.apache.hadoop.yarn.api.records.ReservationDefinition contract)	Create a reservation for the user that abides by the specified contract
boolean	deleteReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId, String user, Plan plan)	Delete an user reservation
void	init(org.apache.hadoop.conf.Configuration conf)	Init configuration.
boolean	updateReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId, String user, Plan plan, org.apache.hadoop.yarn.api.records.ReservationDefinition contract)	Update a reservation for the user that abides by the specified contract

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_SMOOTHNESS_FACTOR

public static final int DEFAULT_SMOOTHNESS_FACTOR

See Also:

• Constant Field Values

SMOOTHNESS_FACTOR

public static final String SMOOTHNESS_FACTOR

See Also:

• Constant Field Values

Constructor Details

AlignedPlannerWithGreedy

public AlignedPlannerWithGreedy()

Method Details

init

public void init(org.apache.hadoop.conf.Configuration conf)

Description copied from interface: ReservationAgent

Init configuration.

Specified by:

init in interface ReservationAgent

Parameters:

conf - Configuration

createReservation

public boolean createReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId,
 String user,
 Plan plan,
 org.apache.hadoop.yarn.api.records.ReservationDefinition contract)
                          throws PlanningException

Description copied from interface: ReservationAgent

Create a reservation for the user that abides by the specified contract

Specified by:

createReservation in interface ReservationAgent

Parameters:

reservationId - the identifier of the reservation to be created.

user - the user who wants to create the reservation

plan - the Plan to which the reservation must be fitted

contract - encapsulates the resources the user requires for his session

Returns:

whether the create operation was successful or not

Throws:

PlanningException - if the session cannot be fitted into the plan

updateReservation

public boolean updateReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId,
 String user,
 Plan plan,
 org.apache.hadoop.yarn.api.records.ReservationDefinition contract)
                          throws PlanningException

Description copied from interface: ReservationAgent

Update a reservation for the user that abides by the specified contract

Specified by:

updateReservation in interface ReservationAgent

Parameters:

reservationId - the identifier of the reservation to be updated

user - the user who wants to create the session

plan - the Plan to which the reservation must be fitted

contract - encapsulates the resources the user requires for his reservation

Returns:

whether the update operation was successful or not

Throws:

PlanningException - if the reservation cannot be fitted into the plan

deleteReservation

public boolean deleteReservation(org.apache.hadoop.yarn.api.records.ReservationId reservationId,
 String user,
 Plan plan)
                          throws PlanningException

Description copied from interface: ReservationAgent

Delete an user reservation

Specified by:

deleteReservation in interface ReservationAgent

Parameters:

reservationId - the identifier of the reservation to be deleted

user - the user who wants to create the reservation

plan - the Plan to which the session must be fitted

Returns:

whether the delete operation was successful or not

Throws:

PlanningException - if the reservation cannot be fitted into the plan