| /** |
| * 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.conf.Configuration; |
| import org.apache.hadoop.examples.RandomWriter; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapreduce.server.jobtracker.JTConfig; |
| import org.apache.hadoop.mapreduce.server.tasktracker.TTConfig; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| |
| public class TestMapredHeartbeat extends TestCase { |
| public void testJobDirCleanup() throws IOException { |
| MiniMRCluster mr = null; |
| try { |
| // test the default heartbeat interval |
| int taskTrackers = 2; |
| JobConf conf = new JobConf(); |
| mr = new MiniMRCluster(taskTrackers, "file:///", 3, |
| null, null, conf); |
| JobClient jc = new JobClient(mr.createJobConf()); |
| while(jc.getClusterStatus().getTaskTrackers() != taskTrackers) { |
| UtilsForTests.waitFor(100); |
| } |
| assertEquals(JTConfig.JT_HEARTBEAT_INTERVAL_MIN_DEFAULT, |
| mr.getJobTrackerRunner().getJobTracker().getNextHeartbeatInterval()); |
| mr.shutdown(); |
| |
| // test configured heartbeat interval |
| taskTrackers = 5; |
| conf.setInt(JTConfig.JT_HEARTBEATS_IN_SECOND, 1); |
| mr = new MiniMRCluster(taskTrackers, "file:///", 3, |
| null, null, conf); |
| jc = new JobClient(mr.createJobConf()); |
| while(jc.getClusterStatus().getTaskTrackers() != taskTrackers) { |
| UtilsForTests.waitFor(100); |
| } |
| assertEquals(taskTrackers * 1000, |
| mr.getJobTrackerRunner().getJobTracker().getNextHeartbeatInterval()); |
| mr.shutdown(); |
| |
| // test configured heartbeat interval is capped with min value |
| taskTrackers = 5; |
| conf.setInt(JTConfig.JT_HEARTBEATS_IN_SECOND, 100); |
| mr = new MiniMRCluster(taskTrackers, "file:///", 3, |
| null, null, conf); |
| jc = new JobClient(mr.createJobConf()); |
| while(jc.getClusterStatus().getTaskTrackers() != taskTrackers) { |
| UtilsForTests.waitFor(100); |
| } |
| assertEquals(JTConfig.JT_HEARTBEAT_INTERVAL_MIN_DEFAULT, |
| mr.getJobTrackerRunner().getJobTracker().getNextHeartbeatInterval()); |
| } finally { |
| if (mr != null) { mr.shutdown(); } |
| } |
| } |
| |
| public void testOutOfBandHeartbeats() throws Exception { |
| MiniDFSCluster dfs = null; |
| MiniMRCluster mr = null; |
| try { |
| Configuration conf = new Configuration(); |
| dfs = new MiniDFSCluster(conf, 4, true, null); |
| |
| int taskTrackers = 1; |
| JobConf jobConf = new JobConf(); |
| jobConf.setFloat(JTConfig.JT_HEARTBEATS_SCALING_FACTOR, 30.0f); |
| jobConf.setBoolean(TTConfig.TT_OUTOFBAND_HEARBEAT, true); |
| mr = new MiniMRCluster(taskTrackers, |
| dfs.getFileSystem().getUri().toString(), 3, |
| null, null, jobConf); |
| long start = System.currentTimeMillis(); |
| TestMiniMRDFSSort.runRandomWriter(mr.createJobConf(), new Path("rw")); |
| long end = System.currentTimeMillis(); |
| |
| final int expectedRuntimeSecs = 120; |
| final int runTimeSecs = (int)((end-start) / 1000); |
| System.err.println("Runtime is " + runTimeSecs); |
| assertEquals("Actual runtime " + runTimeSecs + "s not less than expected " + |
| "runtime of " + expectedRuntimeSecs + "s!", |
| true, (runTimeSecs <= 120)); |
| } finally { |
| if (mr != null) { mr.shutdown(); } |
| if (dfs != null) { dfs.shutdown(); } |
| } |
| } |
| |
| } |
| |
| |