| /** |
| * 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.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| |
| import static org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.assureRoot; |
| import static org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.isValidQueueName; |
| |
| /** |
| * Places apps in queues by requested queue of the submitter. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class SpecifiedPlacementRule extends FSPlacementRule { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(SpecifiedPlacementRule.class); |
| |
| @Override |
| public boolean initialize(ResourceScheduler scheduler) throws IOException { |
| super.initialize(scheduler); |
| if (getParentRule() != null) { |
| throw new IOException( |
| "Parent rule should not be configured for Specified rule."); |
| } |
| return true; |
| } |
| |
| @Override |
| public ApplicationPlacementContext getPlacementForApp( |
| ApplicationSubmissionContext asc, String user) throws YarnException { |
| |
| // Sanity check the provided queue |
| String queueName = asc.getQueue(); |
| if (!isValidQueueName(queueName)) { |
| LOG.error("Specified queue name not valid: '{}'", queueName); |
| throw new YarnException("Application submitted by user " + user + |
| "with illegal queue name '" + queueName + "'."); |
| } |
| // On submission the requested queue will be set to "default" if no queue |
| // is specified: just check the next rule in that case |
| if (queueName.equals(YarnConfiguration.DEFAULT_QUEUE_NAME)) { |
| return null; |
| } |
| queueName = assureRoot(queueName); |
| // 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; |
| } |
| } |