| /** |
| * 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.File; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| import java.io.IOException; |
| import java.util.Properties; |
| |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapreduce.server.jobtracker.JTConfig; |
| |
| public class TestJobStatusPersistency extends ClusterMapReduceTestCase { |
| static final Path TEST_DIR = |
| new Path(System.getProperty("test.build.data","/tmp"), |
| "job-status-persistence"); |
| |
| @Override |
| protected void setUp() throws Exception { |
| // Don't start anything by default |
| } |
| |
| private JobID runJob() throws Exception { |
| OutputStream os = getFileSystem().create(new Path(getInputDir(), "text.txt")); |
| Writer wr = new OutputStreamWriter(os); |
| wr.write("hello1\n"); |
| wr.write("hello2\n"); |
| wr.write("hello3\n"); |
| wr.write("hello4\n"); |
| wr.close(); |
| |
| JobConf conf = createJobConf(); |
| conf.setJobName("mr"); |
| |
| conf.setInputFormat(TextInputFormat.class); |
| |
| conf.setMapOutputKeyClass(LongWritable.class); |
| conf.setMapOutputValueClass(Text.class); |
| |
| conf.setOutputFormat(TextOutputFormat.class); |
| conf.setOutputKeyClass(LongWritable.class); |
| conf.setOutputValueClass(Text.class); |
| |
| conf.setMapperClass(org.apache.hadoop.mapred.lib.IdentityMapper.class); |
| conf.setReducerClass(org.apache.hadoop.mapred.lib.IdentityReducer.class); |
| |
| FileInputFormat.setInputPaths(conf, getInputDir()); |
| |
| FileOutputFormat.setOutputPath(conf, getOutputDir()); |
| |
| return JobClient.runJob(conf).getID(); |
| } |
| |
| public void testNonPersistency() throws Exception { |
| startCluster(true, null); |
| JobID jobId = runJob(); |
| JobClient jc = new JobClient(createJobConf()); |
| RunningJob rj = jc.getJob(jobId); |
| assertNotNull(rj); |
| stopCluster(); |
| startCluster(false, null); |
| jc = new JobClient(createJobConf()); |
| rj = jc.getJob(jobId); |
| assertNull(rj); |
| } |
| |
| public void testPersistency() throws Exception { |
| Properties config = new Properties(); |
| config.setProperty(JTConfig.JT_PERSIST_JOBSTATUS, "true"); |
| config.setProperty(JTConfig.JT_PERSIST_JOBSTATUS_HOURS, "1"); |
| startCluster(true, config); |
| JobID jobId = runJob(); |
| JobClient jc = new JobClient(createJobConf()); |
| RunningJob rj0 = jc.getJob(jobId); |
| assertNotNull(rj0); |
| boolean sucessfull0 = rj0.isSuccessful(); |
| String jobName0 = rj0.getJobName(); |
| Counters counters0 = rj0.getCounters(); |
| TaskCompletionEvent[] events0 = rj0.getTaskCompletionEvents(0); |
| |
| stopCluster(); |
| startCluster(false, config); |
| |
| jc = new JobClient(createJobConf()); |
| RunningJob rj1 = jc.getJob(jobId); |
| assertNotNull(rj1); |
| assertEquals(sucessfull0, rj1.isSuccessful()); |
| assertEquals(jobName0, rj0.getJobName()); |
| assertEquals(counters0.size(), rj1.getCounters().size()); |
| |
| TaskCompletionEvent[] events1 = rj1.getTaskCompletionEvents(0); |
| assertEquals(events0.length, events1.length); |
| for (int i = 0; i < events0.length; i++) { |
| assertEquals(events0[i].getTaskAttemptId(), events1[i].getTaskAttemptId()); |
| assertEquals(events0[i].getTaskStatus(), events1[i].getTaskStatus()); |
| } |
| } |
| |
| /** |
| * Test if the completed job status is persisted to localfs. |
| */ |
| public void testLocalPersistency() throws Exception { |
| FileSystem fs = FileSystem.getLocal(new JobConf()); |
| |
| fs.delete(TEST_DIR, true); |
| |
| Properties config = new Properties(); |
| config.setProperty(JTConfig.JT_PERSIST_JOBSTATUS, "true"); |
| config.setProperty(JTConfig.JT_PERSIST_JOBSTATUS_HOURS, "1"); |
| config.setProperty(JTConfig.JT_PERSIST_JOBSTATUS_DIR, |
| fs.makeQualified(TEST_DIR).toString()); |
| startCluster(true, config); |
| JobID jobId = runJob(); |
| JobClient jc = new JobClient(createJobConf()); |
| RunningJob rj = jc.getJob(jobId); |
| assertNotNull(rj); |
| |
| // check if the local fs has the data |
| Path jobInfo = new Path(TEST_DIR, rj.getID() + ".info"); |
| assertTrue("Missing job info from the local fs", fs.exists(jobInfo)); |
| fs.delete(TEST_DIR, true); |
| } |
| |
| /** |
| * Verify that completed-job store is inactive if the jobinfo path is not |
| * writable. |
| * |
| * @throws Exception |
| */ |
| public void testJobStoreDisablingWithInvalidPath() throws Exception { |
| MiniMRCluster mr = null; |
| Path parent = new Path(TEST_DIR, "parent"); |
| try { |
| FileSystem fs = FileSystem.getLocal(new JobConf()); |
| |
| if (fs.exists(TEST_DIR) && !fs.delete(TEST_DIR, true)) { |
| fail("Cannot delete TEST_DIR!"); |
| } |
| |
| if (fs.mkdirs(new Path(TEST_DIR, parent))) { |
| if (!(new File(parent.toUri().getPath()).setWritable(false, false))) { |
| fail("Cannot chmod parent!"); |
| } |
| } else { |
| fail("Cannot create parent dir!"); |
| } |
| JobConf config = new JobConf(); |
| config.set(JTConfig.JT_PERSIST_JOBSTATUS, "true"); |
| config.set(JTConfig.JT_PERSIST_JOBSTATUS_HOURS, "1"); |
| config.set(JTConfig.JT_PERSIST_JOBSTATUS_DIR, new Path(parent, |
| "child").toUri().getPath()); |
| boolean started = true; |
| JobConf conf = MiniMRCluster.configureJobConf(config, "file:///", 0, 0, null); |
| try { |
| JobTracker jt = JobTracker.startTracker(conf); |
| } catch (IOException ex) { |
| started = false; |
| } |
| assertFalse(started); |
| } finally { |
| new File(parent.toUri().getPath()).setWritable(true, false); |
| } |
| } |
| } |