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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.pig.tez;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.fs.Path;
import org.apache.pig.PigConfiguration;
import org.apache.pig.PigRunner;
import org.apache.pig.PigServer;
import org.apache.pig.impl.plan.OperatorPlan;
import org.apache.pig.test.Util;
import org.apache.pig.tools.pigstats.JobStats;
import org.apache.pig.tools.pigstats.OutputStats;
import org.apache.pig.tools.pigstats.PigProgressNotificationListener;
import org.apache.pig.tools.pigstats.PigStats;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Test class for tez specific behaviour tests
*/
public class TestTezJobExecution {
private static final String TEST_DIR = Util.getTestDirectory(TestTezJobExecution.class);
private static final String INPUT_FILE = TEST_DIR + Path.SEPARATOR + "input";
private PigServer pigServer;
@BeforeClass
public static void oneTimeSetUp() throws Exception {
Util.deleteDirectory(new File(TEST_DIR));
new File(TEST_DIR).mkdirs();
Util.createLocalInputFile(INPUT_FILE, new String[] {
"1", "1", "1", "2", "2", "2"
});
}
@AfterClass
public static void oneTimeTearDown() throws Exception {
Util.deleteDirectory(new File(TEST_DIR));
}
@Before
public void setUp() throws Exception {
pigServer = new PigServer("tez_local");
}
@Test
public void testUnionParallelHashValuePartition() throws IOException {
String output = TEST_DIR + Path.SEPARATOR + "output1";
String query = "A = LOAD '" + INPUT_FILE + "';"
+ "B = LOAD '" + INPUT_FILE + "';"
+ "C = UNION A, B PARALLEL 2;"
+ "STORE C into '" + output + "';";
pigServer.registerQuery(query);
String part0 = FileUtils.readFileToString(new File(output + Path.SEPARATOR + "part-v002-o000-r-00000"));
String part1 = FileUtils.readFileToString(new File(output + Path.SEPARATOR + "part-v002-o000-r-00001"));
assertEquals("2\n2\n2\n2\n2\n2\n", part0);
assertEquals("1\n1\n1\n1\n1\n1\n", part1);
}
@Test
public void testDAGDiscoveryDisabled() throws IOException {
String output1 = TEST_DIR + Path.SEPARATOR + "output-parallel";
String output2 = TEST_DIR + Path.SEPARATOR + "output-autoparallel";
String scriptFile = TEST_DIR + Path.SEPARATOR + "testDAGRecoveryDisable.pig";
String query = "A = LOAD '" + INPUT_FILE + "';"
+ "B = GROUP A BY $0 PARALLEL 1;"
+ "STORE B into '" + output1 + "';"
+ "exec;"
+ "C = LOAD '" + INPUT_FILE + "';"
+ "D = GROUP C BY $0;"
+ "STORE D into '" + output2 + "';";
Util.createLocalInputFile(scriptFile, new String[] {query});
String[] args = { "-x", "tez_local", scriptFile };
TestNotificationListener listener = new TestNotificationListener();
// Recovery is not disabled when there is auto parallelism. Should reuse AM application session
PigStats stats = PigRunner.run(args, listener);
assertTrue(stats.isSuccessful());
assertEquals(1, listener.getJobsStarted().size());
Util.deleteFile(pigServer.getPigContext(), output1);
Util.deleteFile(pigServer.getPigContext(), output2);
// Recovery is disabled when there is auto parallelism. Should use two different AMs
listener.reset();
args = new String[] {
"-D" + PigConfiguration.PIG_TEZ_AUTO_PARALLELISM_DISABLE_DAG_RECOVERY + "=true",
"-x",
"tez_local",
scriptFile };
stats = PigRunner.run(args, listener);
assertTrue(stats.isSuccessful());
assertEquals(2, listener.getJobsStarted().size());
}
private static class TestNotificationListener implements PigProgressNotificationListener {
private Set<String> jobsStarted = new HashSet<String>();
public void reset() {
this.jobsStarted.clear();
}
public Set<String> getJobsStarted() {
return jobsStarted;
}
@Override
public void initialPlanNotification(String scriptId,
OperatorPlan<?> plan) {
}
@Override
public void launchStartedNotification(String scriptId,
int numJobsToLaunch) {
}
@Override
public void jobsSubmittedNotification(String scriptId,
int numJobsSubmitted) {
}
@Override
public void jobStartedNotification(String scriptId, String assignedJobId) {
jobsStarted.add(assignedJobId);
}
@Override
public void jobFinishedNotification(String scriptId, JobStats jobStats) {
}
@Override
public void jobFailedNotification(String scriptId, JobStats jobStats) {
}
@Override
public void outputCompletedNotification(String scriptId,
OutputStats outputStats) {
}
@Override
public void progressUpdatedNotification(String scriptId, int progress) {
}
@Override
public void launchCompletedNotification(String scriptId,
int numJobsSucceeded) {
}
}
}