| /* |
| * 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.drill.yarn.appMaster; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.drill.yarn.core.ContainerRequestSpec; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| |
| public abstract class AbstractScheduler implements Scheduler { |
| private static final Log LOG = LogFactory.getLog(AbstractScheduler.class); |
| private final String name; |
| private final String type; |
| protected TaskSpec taskSpec; |
| protected int priority; |
| protected int failCount; |
| protected TaskManager taskManager; |
| protected SchedulerState state; |
| protected boolean isTracked; |
| |
| public AbstractScheduler(String type, String name) { |
| this.type = type; |
| this.name = name; |
| taskManager = new AbstractTaskManager(); |
| } |
| |
| public void setTaskManager(TaskManager taskManager) { |
| this.taskManager = taskManager; |
| } |
| |
| @Override |
| public void registerState(SchedulerState state) { |
| this.state = state; |
| } |
| |
| @Override |
| public void setPriority(int priority) { |
| this.priority = priority; |
| taskSpec.containerSpec.priority = priority; |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public String getType() { |
| return type; |
| } |
| |
| @Override |
| public TaskManager getTaskManager() { |
| return taskManager; |
| } |
| |
| @Override |
| public void change(int delta) { |
| resize(getTarget() + delta); |
| } |
| |
| protected void addTasks(int n) { |
| LOG.info( "[" + getName( ) + "] - Adding " + n + " tasks" ); |
| for (int i = 0; i < n; i++) { |
| state.start(new Task(this, taskSpec)); |
| } |
| } |
| |
| @Override |
| public boolean isTracked() { |
| return isTracked; |
| } |
| |
| @Override |
| public ContainerRequestSpec getResource() { |
| return taskSpec.containerSpec; |
| } |
| |
| @Override |
| public void limitContainerSize(Resource maxResource) throws AMException { |
| if (taskSpec.containerSpec.memoryMb > maxResource.getMemory()) { |
| LOG.warn(taskSpec.name + " requires " + taskSpec.containerSpec.memoryMb |
| + " MB but the maximum YARN container size is " |
| + maxResource.getMemory() + " MB"); |
| taskSpec.containerSpec.memoryMb = maxResource.getMemory(); |
| } |
| if (taskSpec.containerSpec.vCores > maxResource.getVirtualCores()) { |
| LOG.warn(taskSpec.name + " requires " + taskSpec.containerSpec.vCores |
| + " vcores but the maximum YARN container size is " |
| + maxResource.getVirtualCores() + " vcores"); |
| taskSpec.containerSpec.vCores = maxResource.getVirtualCores(); |
| } |
| } |
| |
| @Override |
| public int getRequestTimeoutSec() { return 0; } |
| } |