| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.yarn.server.resourcemanager.reservation.planning; |
| |
| import org.apache.hadoop.yarn.api.records.ReservationDefinition; |
| import org.apache.hadoop.yarn.api.records.ReservationRequest; |
| import org.apache.hadoop.yarn.api.records.ReservationRequestInterpreter; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.Plan; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.RLESparseResourceAllocation; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.ReservationInterval; |
| |
| /** |
| * An implementation of {@link StageExecutionInterval} which gives each stage |
| * the maximal possible time interval, given the job constraints. Specifically, |
| * for ANY and ALL jobs, the interval would be [jobArrival, jobDeadline). For |
| * ORDER jobs, the stage cannot start before its predecessors (if allocateLeft |
| * == true) or cannot end before its successors (if allocateLeft == false) |
| */ |
| public class StageExecutionIntervalUnconstrained implements |
| StageExecutionInterval { |
| |
| @Override |
| public ReservationInterval computeExecutionInterval(Plan plan, |
| ReservationDefinition reservation, |
| ReservationRequest currentReservationStage, boolean allocateLeft, |
| RLESparseResourceAllocation allocations) { |
| |
| Long stageArrival = reservation.getArrival(); |
| Long stageDeadline = reservation.getDeadline(); |
| |
| ReservationRequestInterpreter jobType = |
| reservation.getReservationRequests().getInterpreter(); |
| |
| // Left to right |
| if (allocateLeft) { |
| // If ORDER job, change the stage arrival time |
| if ((jobType == ReservationRequestInterpreter.R_ORDER) |
| || (jobType == ReservationRequestInterpreter.R_ORDER_NO_GAP)) { |
| Long allocationEndTime = allocations.getLatestNonNullTime(); |
| if (allocationEndTime != -1) { |
| stageArrival = allocationEndTime; |
| } |
| } |
| // Right to left |
| } else { |
| // If ORDER job, change the stage deadline |
| if ((jobType == ReservationRequestInterpreter.R_ORDER) |
| || (jobType == ReservationRequestInterpreter.R_ORDER_NO_GAP)) { |
| Long allocationStartTime = allocations.getEarliestStartTime(); |
| if (allocationStartTime != -1) { |
| stageDeadline = allocationStartTime; |
| } |
| } |
| } |
| return new ReservationInterval(stageArrival, stageDeadline); |
| } |
| } |