/**
* 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;
import static org.mockito.Mockito.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.event.AsyncDispatcher;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.SchedulerEventDispatcher;
import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ContainerPreemptEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEventType;
import org.junit.Assert;
import org.junit.Test;
public class TestRMDispatcher {
@SuppressWarnings("unchecked")
@Test(timeout=10000)
public void testSchedulerEventDispatcherForPreemptionEvents() {
AsyncDispatcher rmDispatcher = new AsyncDispatcher();
CapacityScheduler sched = spy(new CapacityScheduler());
YarnConfiguration conf = new YarnConfiguration();
SchedulerEventDispatcher schedulerDispatcher =
new SchedulerEventDispatcher(sched);
rmDispatcher.register(SchedulerEventType.class, schedulerDispatcher);
rmDispatcher.init(conf);
rmDispatcher.start();
schedulerDispatcher.init(conf);
schedulerDispatcher.start();
try {
ApplicationAttemptId appAttemptId = mock(ApplicationAttemptId.class);
RMContainer container = mock(RMContainer.class);
ContainerPreemptEvent event1 = new ContainerPreemptEvent(
appAttemptId, container, SchedulerEventType.DROP_RESERVATION);
rmDispatcher.getEventHandler().handle(event1);
ContainerPreemptEvent event2 = new ContainerPreemptEvent(
appAttemptId, container, SchedulerEventType.KILL_CONTAINER);
rmDispatcher.getEventHandler().handle(event2);
ContainerPreemptEvent event3 = new ContainerPreemptEvent(
appAttemptId, container, SchedulerEventType.PREEMPT_CONTAINER);
rmDispatcher.getEventHandler().handle(event3);
// Wait for events to be processed by scheduler dispatcher.
Thread.sleep(1000);
verify(sched, times(3)).handle(any(SchedulerEvent.class));
verify(sched).dropContainerReservation(container);
verify(sched).preemptContainer(appAttemptId, container);
verify(sched).killContainer(container);
} catch (InterruptedException e) {
Assert.fail();
} finally {
schedulerDispatcher.stop();
rmDispatcher.stop();
}
}
}