/**
* 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.mapred;
import java.io.IOException;
import junit.framework.TestCase;
import org.apache.hadoop.mapred.TestJobQueueTaskScheduler.FakeTaskTrackerManager;
public class TestLimitTasksPerJobTaskScheduler extends TestCase {
protected JobConf jobConf;
protected TaskScheduler scheduler;
private FakeTaskTrackerManager taskTrackerManager;
@Override
protected void setUp() throws Exception {
TestJobQueueTaskScheduler.resetCounters();
jobConf = new JobConf();
jobConf.setNumMapTasks(10);
jobConf.setNumReduceTasks(10);
taskTrackerManager = new FakeTaskTrackerManager();
scheduler = createTaskScheduler();
scheduler.setConf(jobConf);
scheduler.setTaskTrackerManager(taskTrackerManager);
scheduler.start();
}
@Override
protected void tearDown() throws Exception {
if (scheduler != null) {
scheduler.terminate();
}
}
protected TaskScheduler createTaskScheduler() {
return new LimitTasksPerJobTaskScheduler();
}
public void testMaxRunningTasksPerJob() throws IOException {
jobConf.setLong(LimitTasksPerJobTaskScheduler.MAX_TASKS_PER_JOB_PROPERTY,
4L);
scheduler.setConf(jobConf);
TestJobQueueTaskScheduler.submitJobs(taskTrackerManager, jobConf,
2, JobStatus.RUNNING);
// First 4 slots are filled with job 1, second 4 with job 2
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_m_000001_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_m_000002_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_r_000003_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_r_000004_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_m_000005_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_m_000006_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_r_000007_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_r_000008_0 on tt2"});
}
public void testMaxRunningTasksPerJobWithInterleavedTrackers()
throws IOException {
jobConf.setLong(LimitTasksPerJobTaskScheduler.MAX_TASKS_PER_JOB_PROPERTY,
4L);
scheduler.setConf(jobConf);
TestJobQueueTaskScheduler.submitJobs(taskTrackerManager, jobConf, 2, JobStatus.RUNNING);
// First 4 slots are filled with job 1, second 4 with job 2
// even when tracker requests are interleaved
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_m_000001_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_m_000002_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0001_m_000003_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0001_r_000004_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_m_000005_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt1"),
new String[] {"attempt_test_0002_r_000006_0 on tt1"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_r_000007_0 on tt2"});
TestJobQueueTaskScheduler.checkAssignment(
scheduler, TestJobQueueTaskScheduler.tracker(taskTrackerManager, "tt2"),
new String[] {"attempt_test_0002_r_000008_0 on tt2"});
}
}