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* 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.scheduler.fair;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.junit.Before;
import org.junit.Test;
public class TestMaxRunningAppsEnforcer {
private QueueManager queueManager;
private Map<String, Integer> queueMaxApps;
private Map<String, Integer> userMaxApps;
private MaxRunningAppsEnforcer maxAppsEnforcer;
private int appNum;
private TestFairScheduler.MockClock clock;
@Before
public void setup() throws Exception {
Configuration conf = new Configuration();
clock = new TestFairScheduler.MockClock();
FairScheduler scheduler = mock(FairScheduler.class);
when(scheduler.getConf()).thenReturn(
new FairSchedulerConfiguration(conf));
when(scheduler.getClock()).thenReturn(clock);
AllocationConfiguration allocConf = new AllocationConfiguration(
conf);
when(scheduler.getAllocationConfiguration()).thenReturn(allocConf);
queueManager = new QueueManager(scheduler);
queueManager.initialize(conf);
queueMaxApps = allocConf.queueMaxApps;
userMaxApps = allocConf.userMaxApps;
maxAppsEnforcer = new MaxRunningAppsEnforcer(scheduler);
appNum = 0;
}
private FSSchedulerApp addApp(FSLeafQueue queue, String user) {
ApplicationId appId = ApplicationId.newInstance(0l, appNum++);
ApplicationAttemptId attId = ApplicationAttemptId.newInstance(appId, 0);
boolean runnable = maxAppsEnforcer.canAppBeRunnable(queue, user);
FSSchedulerApp app = new FSSchedulerApp(attId, user, queue, null, null);
queue.addApp(app, runnable);
if (runnable) {
maxAppsEnforcer.trackRunnableApp(app);
} else {
maxAppsEnforcer.trackNonRunnableApp(app);
}
return app;
}
private void removeApp(FSSchedulerApp app) {
app.getQueue().removeApp(app);
maxAppsEnforcer.untrackRunnableApp(app);
maxAppsEnforcer.updateRunnabilityOnAppRemoval(app, app.getQueue());
}
@Test
public void testRemoveDoesNotEnableAnyApp() {
FSLeafQueue leaf1 = queueManager.getLeafQueue("root.queue1", true);
FSLeafQueue leaf2 = queueManager.getLeafQueue("root.queue2", true);
queueMaxApps.put("root", 2);
queueMaxApps.put("root.queue1", 1);
queueMaxApps.put("root.queue2", 1);
FSSchedulerApp app1 = addApp(leaf1, "user");
addApp(leaf2, "user");
addApp(leaf2, "user");
assertEquals(1, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
removeApp(app1);
assertEquals(0, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
}
@Test
public void testRemoveEnablesAppOnCousinQueue() {
FSLeafQueue leaf1 = queueManager.getLeafQueue("root.queue1.subqueue1.leaf1", true);
FSLeafQueue leaf2 = queueManager.getLeafQueue("root.queue1.subqueue2.leaf2", true);
queueMaxApps.put("root.queue1", 2);
FSSchedulerApp app1 = addApp(leaf1, "user");
addApp(leaf2, "user");
addApp(leaf2, "user");
assertEquals(1, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
removeApp(app1);
assertEquals(0, leaf1.getRunnableAppSchedulables().size());
assertEquals(2, leaf2.getRunnableAppSchedulables().size());
assertEquals(0, leaf2.getNonRunnableAppSchedulables().size());
}
@Test
public void testRemoveEnablesOneByQueueOneByUser() {
FSLeafQueue leaf1 = queueManager.getLeafQueue("root.queue1.leaf1", true);
FSLeafQueue leaf2 = queueManager.getLeafQueue("root.queue1.leaf2", true);
queueMaxApps.put("root.queue1.leaf1", 2);
userMaxApps.put("user1", 1);
FSSchedulerApp app1 = addApp(leaf1, "user1");
addApp(leaf1, "user2");
addApp(leaf1, "user3");
addApp(leaf2, "user1");
assertEquals(2, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf1.getNonRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
removeApp(app1);
assertEquals(2, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(0, leaf1.getNonRunnableAppSchedulables().size());
assertEquals(0, leaf2.getNonRunnableAppSchedulables().size());
}
@Test
public void testRemoveEnablingOrderedByStartTime() {
FSLeafQueue leaf1 = queueManager.getLeafQueue("root.queue1.subqueue1.leaf1", true);
FSLeafQueue leaf2 = queueManager.getLeafQueue("root.queue1.subqueue2.leaf2", true);
queueMaxApps.put("root.queue1", 2);
FSSchedulerApp app1 = addApp(leaf1, "user");
addApp(leaf2, "user");
addApp(leaf2, "user");
clock.tick(20);
addApp(leaf1, "user");
assertEquals(1, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(1, leaf1.getNonRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
removeApp(app1);
assertEquals(0, leaf1.getRunnableAppSchedulables().size());
assertEquals(2, leaf2.getRunnableAppSchedulables().size());
assertEquals(0, leaf2.getNonRunnableAppSchedulables().size());
}
@Test
public void testMultipleAppsWaitingOnCousinQueue() {
FSLeafQueue leaf1 = queueManager.getLeafQueue("root.queue1.subqueue1.leaf1", true);
FSLeafQueue leaf2 = queueManager.getLeafQueue("root.queue1.subqueue2.leaf2", true);
queueMaxApps.put("root.queue1", 2);
FSSchedulerApp app1 = addApp(leaf1, "user");
addApp(leaf2, "user");
addApp(leaf2, "user");
addApp(leaf2, "user");
assertEquals(1, leaf1.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getRunnableAppSchedulables().size());
assertEquals(2, leaf2.getNonRunnableAppSchedulables().size());
removeApp(app1);
assertEquals(0, leaf1.getRunnableAppSchedulables().size());
assertEquals(2, leaf2.getRunnableAppSchedulables().size());
assertEquals(1, leaf2.getNonRunnableAppSchedulables().size());
}
@Test
public void testMultiListStartTimeIteratorEmptyAppLists() {
List<List<AppSchedulable>> lists = new ArrayList<List<AppSchedulable>>();
lists.add(Arrays.asList(mockAppSched(1)));
lists.add(Arrays.asList(mockAppSched(2)));
Iterator<FSSchedulerApp> iter =
new MaxRunningAppsEnforcer.MultiListStartTimeIterator(lists);
assertEquals(1, iter.next().getAppSchedulable().getStartTime());
assertEquals(2, iter.next().getAppSchedulable().getStartTime());
}
private AppSchedulable mockAppSched(long startTime) {
AppSchedulable appSched = mock(AppSchedulable.class);
when(appSched.getStartTime()).thenReturn(startTime);
FSSchedulerApp schedApp = mock(FSSchedulerApp.class);
when(schedApp.getAppSchedulable()).thenReturn(appSched);
when(appSched.getApp()).thenReturn(schedApp);
return appSched;
}
}