| /** |
| * 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.scheduler.capacity; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.ReservationSystem; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerDynamicEditException; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.QueueEntitlement; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This represents a dynamic {@link LeafQueue} managed by the |
| * {@link ReservationSystem} |
| * |
| */ |
| public class ReservationQueue extends LeafQueue { |
| |
| private static final Logger LOG = LoggerFactory |
| .getLogger(ReservationQueue.class); |
| |
| private PlanQueue parent; |
| |
| private int maxSystemApps; |
| |
| public ReservationQueue(CapacitySchedulerContext cs, String queueName, |
| PlanQueue parent) throws IOException { |
| super(cs, queueName, parent, null); |
| maxSystemApps = cs.getConfiguration().getMaximumSystemApplications(); |
| // the following parameters are common to all reservation in the plan |
| updateQuotas(parent.getUserLimitForReservation(), |
| parent.getUserLimitFactor(), |
| parent.getMaxApplicationsForReservations(), |
| parent.getMaxApplicationsPerUserForReservation()); |
| this.parent = parent; |
| } |
| |
| @Override |
| public synchronized void reinitialize(CSQueue newlyParsedQueue, |
| Resource clusterResource) throws IOException { |
| // Sanity check |
| if (!(newlyParsedQueue instanceof ReservationQueue) |
| || !newlyParsedQueue.getQueuePath().equals(getQueuePath())) { |
| throw new IOException("Trying to reinitialize " + getQueuePath() |
| + " from " + newlyParsedQueue.getQueuePath()); |
| } |
| super.reinitialize(newlyParsedQueue, clusterResource); |
| CSQueueUtils.updateQueueStatistics( |
| parent.schedulerContext.getResourceCalculator(), newlyParsedQueue, |
| parent, parent.schedulerContext.getClusterResource(), |
| parent.schedulerContext.getMinimumResourceCapability()); |
| updateQuotas(parent.getUserLimitForReservation(), |
| parent.getUserLimitFactor(), |
| parent.getMaxApplicationsForReservations(), |
| parent.getMaxApplicationsPerUserForReservation()); |
| } |
| |
| /** |
| * This methods to change capacity for a queue and adjusts its |
| * absoluteCapacity |
| * |
| * @param entitlement the new entitlement for the queue (capacity, |
| * maxCapacity, etc..) |
| * @throws SchedulerDynamicEditException |
| */ |
| public synchronized void setEntitlement(QueueEntitlement entitlement) |
| throws SchedulerDynamicEditException { |
| float capacity = entitlement.getCapacity(); |
| if (capacity < 0 || capacity > 1.0f) { |
| throw new SchedulerDynamicEditException( |
| "Capacity demand is not in the [0,1] range: " + capacity); |
| } |
| setCapacity(capacity); |
| setAbsoluteCapacity(getParent().getAbsoluteCapacity() * getCapacity()); |
| setMaxApplications((int) (maxSystemApps * getAbsoluteCapacity())); |
| // note: we currently set maxCapacity to capacity |
| // this might be revised later |
| setMaxCapacity(entitlement.getMaxCapacity()); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("successfully changed to " + capacity + " for queue " |
| + this.getQueueName()); |
| } |
| } |
| |
| private void updateQuotas(int userLimit, float userLimitFactor, |
| int maxAppsForReservation, int maxAppsPerUserForReservation) { |
| setUserLimit(userLimit); |
| setUserLimitFactor(userLimitFactor); |
| setMaxApplications(maxAppsForReservation); |
| maxApplicationsPerUser = maxAppsPerUserForReservation; |
| } |
| |
| @Override |
| protected void setupConfigurableCapacities() { |
| CSQueueUtils.updateAndCheckCapacitiesByLabel(getQueuePath(), |
| queueCapacities, parent == null ? null : parent.getQueueCapacities()); |
| } |
| } |