| /** |
| * 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.Assert; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapreduce.server.jobtracker.JTConfig; |
| import org.apache.hadoop.util.ToolRunner; |
| |
| import org.junit.Test; |
| |
| public class TestSimulatorDeterministicReplay { |
| |
| public static final Log LOG = LogFactory.getLog( |
| TestSimulatorDeterministicReplay.class); |
| protected SimulatorJobSubmissionPolicy policy = SimulatorJobSubmissionPolicy.REPLAY; |
| |
| @Test |
| public void testMain() throws Exception { |
| Path hadoopLogDir = new Path( |
| System.getProperty("test.build.data"), "mumak-replay"); |
| Path hadoopLogDir1 = new Path(hadoopLogDir, "run1"); |
| Path hadoopLogDir2 = new Path(hadoopLogDir, "run2"); |
| runMumak(hadoopLogDir1, 50031); |
| LOG.info("Run1 done"); |
| runMumak(hadoopLogDir2, 50032); |
| compareLogDirs(hadoopLogDir1.toString(), hadoopLogDir2.toString()); |
| } |
| |
| void compareLogDirs(String dir1, String dir2) { |
| try { |
| Runtime runtime = Runtime.getRuntime(); |
| Process process = runtime.exec("diff -r /dev/null /dev/null"); |
| process.waitFor(); |
| // If there is no diff available, we skip the test and end up in |
| // the catch block |
| // Make sure diff understands the -r option |
| if (process.exitValue() != 0) { |
| LOG.warn("diff -r is not working, skipping the test"); |
| return; |
| } |
| // Run the real comparison |
| process = runtime.exec("diff -r " + dir1 + " " + dir2); |
| process.waitFor(); |
| Assert.assertEquals("Job history logs differ, diff returned", |
| 0, process.exitValue()); |
| } catch (Exception e) { |
| LOG.warn("Exception while diffing: " + e); |
| } |
| } |
| |
| // We need a different http port parameter for each run as the socket |
| // is not closed properly in hadoop |
| void runMumak(Path hadoopLogDir, int jobTrackerHttpPort) |
| throws Exception { |
| final Configuration conf = new Configuration(); |
| conf.set(SimulatorJobSubmissionPolicy.JOB_SUBMISSION_POLICY, policy.name()); |
| final FileSystem lfs = FileSystem.getLocal(conf); |
| final Path rootInputDir = new Path( |
| System.getProperty("src.test.data", "data")).makeQualified(lfs); |
| final Path traceFile = new Path(rootInputDir, "19-jobs.trace.json.gz"); |
| final Path topologyFile = new Path(rootInputDir, "19-jobs.topology.json.gz"); |
| |
| LOG.info("traceFile = " + traceFile + " topology = " + topologyFile); |
| |
| conf.setLong("mumak.start.time", 10); |
| // Run 20 minutes of the simulation |
| conf.setLong("mumak.terminate.time", 10 + 20*60*1000); |
| conf.setLong("mumak.random.seed", 42); |
| // SimulatorEngine reads conf and the system property too (!) |
| System.setProperty("hadoop.log.dir", hadoopLogDir.toString()); |
| conf.set("hadoop.log.dir", hadoopLogDir.toString()); |
| conf.set("mapred.job.tracker.http.address", |
| "0.0.0.0:" + jobTrackerHttpPort); |
| conf.setBoolean(JTConfig.JT_PERSIST_JOBSTATUS, false); |
| String[] args = { traceFile.toString(), topologyFile.toString() }; |
| int res = ToolRunner.run(conf, new SimulatorEngine(), args); |
| Assert.assertEquals(0, res); |
| } |
| } |