@InterfaceAudience.LimitedPrivate(value="yarn") @InterfaceStability.Unstable public class NoOverCommitPolicy extends Object implements SharingPolicy
| Constructor and Description | 
|---|
| NoOverCommitPolicy() | 
| Modifier and Type | Method and Description | 
|---|---|
| RLESparseResourceAllocation | availableResources(RLESparseResourceAllocation available,
                  Plan plan,
                  String user,
                  org.apache.hadoop.yarn.api.records.ReservationId oldId,
                  long start,
                  long end)This method provide a (partial) instantaneous validation by applying
 business rules (such as max number of parallel containers allowed for a
 user). | 
| long | getValidWindow()Returns the time range before and after the current reservation considered
 by this policy. | 
| void | init(String planQueuePath,
    ReservationSchedulerConfiguration conf)Initialize this policy. | 
| void | validate(Plan plan,
        ReservationAllocation reservation)This method runs the policy validation logic, and return true/false on
 whether the  ReservationAllocationis acceptable according to this
 sharing policy. | 
public void validate(Plan plan, ReservationAllocation reservation) throws PlanningException
SharingPolicyReservationAllocation is acceptable according to this
 sharing policy.validate in interface SharingPolicyplan - the Plan we validate againstreservation - the allocation proposed to be added to the
          PlanPlanningException - if the policy is respected if we add this
           ReservationAllocation to the Planpublic long getValidWindow()
SharingPolicyPlan, i.e., reservations regarding times before (now - validWindow)
 can be deleted.getValidWindow in interface SharingPolicypublic void init(String planQueuePath, ReservationSchedulerConfiguration conf)
SharingPolicyinit in interface SharingPolicyplanQueuePath - the name of the queue for this planconf - the system configurationpublic RLESparseResourceAllocation availableResources(RLESparseResourceAllocation available, Plan plan, String user, org.apache.hadoop.yarn.api.records.ReservationId oldId, long start, long end) throws PlanningException
SharingPolicyavailableResources in interface SharingPolicyavailable - the amount of resources that would be offered if not
          constrained by the policyplan - reference the the current Planuser - the usernameoldId - (optional) the id of a reservation being updatedstart - the start time for the range we are queryingend - the end time for the range we are queryingRLESparseResourceAllocationPlanningException - throws if the request is not validCopyright © 2008–2023 Apache Software Foundation. All rights reserved.