| /** |
| * 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.placement; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.DOT; |
| import static org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.assureRoot; |
| import static org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.cleanName; |
| |
| /** |
| * Places apps in queues by username of the submitter. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class UserPlacementRule extends FSPlacementRule { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(UserPlacementRule.class); |
| |
| @Override |
| public ApplicationPlacementContext getPlacementForApp( |
| ApplicationSubmissionContext asc, String user) throws YarnException { |
| String queueName; |
| |
| String cleanUser = cleanName(user); |
| PlacementRule parentRule = getParentRule(); |
| if (parentRule != null) { |
| LOG.debug("User rule: parent rule found: {}", parentRule.getName()); |
| ApplicationPlacementContext parent = |
| parentRule.getPlacementForApp(asc, user); |
| if (parent == null || getQueueManager(). |
| getQueue(parent.getQueue()) instanceof FSLeafQueue) { |
| LOG.debug("User rule: parent rule failed"); |
| return null; |
| } |
| LOG.debug("User rule: parent rule result: {}", parent.getQueue()); |
| queueName = parent.getQueue() + DOT + cleanUser; |
| } else { |
| queueName = assureRoot(cleanUser); |
| } |
| |
| // If we can create the queue in the rule or the queue exists return it |
| if (createQueue || configuredQueue(queueName)) { |
| return new ApplicationPlacementContext(queueName); |
| } |
| return null; |
| } |
| } |