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.

Constructor Summary

Constructors

Constructor and Description
AlignedPlannerWithGreedy()
AlignedPlannerWithGreedy(int smoothnessFactor)

Method Summary

Methods

Modifier and Type	Method and 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
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

Constructor Detail

AlignedPlannerWithGreedy

public AlignedPlannerWithGreedy()

AlignedPlannerWithGreedy

public AlignedPlannerWithGreedy(int smoothnessFactor)

Method Detail

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