| /** |
| * 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.mapreduce.v2.app.local; |
| |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.mapreduce.JobCounter; |
| import org.apache.hadoop.mapreduce.v2.api.records.TaskType; |
| import org.apache.hadoop.mapreduce.v2.app.AppContext; |
| import org.apache.hadoop.mapreduce.v2.app.client.ClientService; |
| import org.apache.hadoop.mapreduce.v2.app.job.event.JobCounterUpdateEvent; |
| import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptContainerAssignedEvent; |
| import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocator; |
| import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocatorEvent; |
| import org.apache.hadoop.mapreduce.v2.app.rm.ContainerRequestEvent; |
| import org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator; |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.api.records.Container; |
| import org.apache.hadoop.yarn.api.records.ContainerId; |
| import org.apache.hadoop.yarn.api.records.NodeId; |
| import org.apache.hadoop.yarn.event.EventHandler; |
| import org.apache.hadoop.yarn.factories.RecordFactory; |
| import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider; |
| import org.apache.hadoop.yarn.util.Records; |
| |
| /** |
| * Allocates containers locally. Doesn't allocate a real container; |
| * instead sends an allocated event for all requests. |
| */ |
| public class LocalContainerAllocator extends RMCommunicator |
| implements ContainerAllocator { |
| |
| private static final Log LOG = |
| LogFactory.getLog(LocalContainerAllocator.class); |
| |
| private final EventHandler eventHandler; |
| private final ApplicationId appID; |
| private AtomicInteger containerCount = new AtomicInteger(); |
| |
| private final RecordFactory recordFactory = |
| RecordFactoryProvider.getRecordFactory(null); |
| |
| public LocalContainerAllocator(ClientService clientService, |
| AppContext context) { |
| super(clientService, context); |
| this.eventHandler = context.getEventHandler(); |
| this.appID = context.getApplicationID(); |
| } |
| |
| @Override |
| public void handle(ContainerAllocatorEvent event) { |
| if (event.getType() == ContainerAllocator.EventType.CONTAINER_REQ) { |
| LOG.info("Processing the event " + event.toString()); |
| ContainerId cID = recordFactory.newRecordInstance(ContainerId.class); |
| cID.setAppId(appID); |
| // use negative ids to denote that these are local. Need a better way ?? |
| cID.setId((-1) * containerCount.getAndIncrement()); |
| |
| Container container = recordFactory.newRecordInstance(Container.class); |
| container.setId(cID); |
| NodeId nodeId = Records.newRecord(NodeId.class); |
| nodeId.setHost("localhost"); |
| nodeId.setPort(1234); |
| container.setNodeId(nodeId); |
| container.setContainerToken(null); |
| container.setNodeHttpAddress("localhost:9999"); |
| // send the container-assigned event to task attempt |
| |
| if (event.getAttemptID().getTaskId().getTaskType() == TaskType.MAP) { |
| JobCounterUpdateEvent jce = |
| new JobCounterUpdateEvent(event.getAttemptID().getTaskId() |
| .getJobId()); |
| // TODO Setting OTHER_LOCAL_MAP for now. |
| jce.addCounterUpdate(JobCounter.OTHER_LOCAL_MAPS, 1); |
| eventHandler.handle(jce); |
| } |
| eventHandler.handle(new TaskAttemptContainerAssignedEvent( |
| event.getAttemptID(), container)); |
| } |
| } |
| |
| } |