/*
* 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.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import junit.framework.Assert;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.Counters;
import org.apache.pig.ExecType;
import org.apache.pig.PigRunner;
import org.apache.pig.PigRunner.ReturnCode;
import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil;
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MROperPlan;
import org.apache.pig.impl.PigContext;
import org.apache.pig.impl.io.FileLocalizer;
import org.apache.pig.newplan.Operator;
import org.apache.pig.tools.pigstats.InputStats;
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.apache.pig.tools.pigstats.PigStatsUtil;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class TestPigRunner {
private static MiniCluster cluster;
private static final String INPUT_FILE = "input";
private static final String OUTPUT_FILE = "output";
private static final String PIG_FILE = "test.pig";
@BeforeClass
public static void setUpBeforeClass() throws Exception {
cluster = MiniCluster.buildCluster();
PrintWriter w = new PrintWriter(new FileWriter(INPUT_FILE));
w.println("1\t2\t3");
w.println("5\t3\t4");
w.println("3\t4\t5");
w.println("5\t6\t7");
w.println("3\t7\t8");
w.close();
Util.copyFromLocalToCluster(cluster, INPUT_FILE, INPUT_FILE);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
new File(INPUT_FILE).delete();
cluster.shutDown();
}
@Before
public void setUp() {
deleteAll(new File(OUTPUT_FILE));
}
@Test
public void testErrorLogFile() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = foreach A generate StringSize(a0);");
w.println("store B into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { "-x", "local", PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(!stats.isSuccessful());
Properties props = stats.getPigProperties();
String logfile = props.getProperty("pig.logfile");
File f = new File(logfile);
assertTrue(f.exists());
} finally {
new File(PIG_FILE).delete();
}
}
@Test
public void testErrorLogFile2() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = foreach A generate StringSize(a0);");
w.println("store B into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { "-M", "-x", "local", PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(!stats.isSuccessful());
Properties props = stats.getPigProperties();
// If test on nfs, the pig script complaining "output" exists
// and does not actually launch the job. This could due to a mapreduce
// bug which removing file before closing it.
// If this happens, props is null because we only set pigContext before
// launching job.
if (props!=null) {
String logfile = props.getProperty("pig.logfile");
File f = new File(logfile);
assertTrue(f.exists());
}
} finally {
new File(PIG_FILE).delete();
}
}
@Test
public void simpleTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = group A by a0;");
w.println("C = foreach B generate group, COUNT(A);");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { "-Dstop.on.failure=true", "-Dopt.multiquery=false", "-Daggregate.warning=false", PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
String name = stats.getOutputNames().get(0);
assertEquals(OUTPUT_FILE, name);
assertEquals(12, stats.getBytesWritten());
assertEquals(3, stats.getRecordWritten());
assertEquals("A,B,C",
((JobStats)stats.getJobGraph().getSinks().get(0)).getAlias());
Configuration conf = ConfigurationUtil.toConfiguration(stats.getPigProperties());
assertTrue(conf.getBoolean("stop.on.failure", false));
assertTrue(!conf.getBoolean("aggregate.warning", true));
assertTrue(!conf.getBoolean("opt.multiquery", true));
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void scriptsInDfsTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = group A by a0;");
w.println("C = foreach B generate group, COUNT(A);");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
Util.copyFromLocalToCluster(cluster, PIG_FILE, PIG_FILE);
Path inputInDfs = new Path(cluster.getFileSystem().getHomeDirectory(), PIG_FILE);
try {
String[] args = { inputInDfs.toString() };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertTrue(stats.getJobGraph().size() == 1);
String name = stats.getOutputNames().get(0);
assertEquals(OUTPUT_FILE, name);
assertEquals(12, stats.getBytesWritten());
assertEquals(3, stats.getRecordWritten());
assertEquals("A,B,C",
((JobStats)stats.getJobGraph().getSinks().get(0)).getAlias());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, PIG_FILE);
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void orderByTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = order A by a0;");
w.println("C = limit B 2;");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
String[] args = { PIG_FILE };
try {
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertTrue(stats.getJobGraph().size() == 4);
assertTrue(stats.getJobGraph().getSinks().size() == 1);
assertTrue(stats.getJobGraph().getSources().size() == 1);
JobStats js = (JobStats) stats.getJobGraph().getSinks().get(0);
assertEquals(OUTPUT_FILE, js.getOutputs().get(0).getName());
assertEquals(2, js.getOutputs().get(0).getNumberRecords());
assertEquals(12, js.getOutputs().get(0).getBytes());
assertEquals(OUTPUT_FILE, stats.getOutputNames().get(0));
assertEquals(2, stats.getRecordWritten());
assertEquals(12, stats.getBytesWritten());
assertEquals("A", ((JobStats) stats.getJobGraph().getSources().get(
0)).getAlias());
assertEquals("B", ((JobStats) stats.getJobGraph().getPredecessors(
js).get(0)).getAlias());
assertEquals("B", js.getAlias());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void simpleMultiQueryTest() throws Exception {
final String OUTPUT_FILE_2 = "output2";
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = filter A by a0 >= 4;");
w.println("C = filter A by a0 < 4;");
w.println("store B into '" + OUTPUT_FILE_2 + "';");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertTrue(stats.getJobGraph().size() == 1);
// Each output file should include the following:
// output:
// 1\t2\t3\n
// 3\t4\t5\n
// 3\t7\t8\n
// output2:
// 5\t3\t4\n
// 5\t6\t7\n
final int numOfRecords = 5;
final int numOfCharsPerRecord = 6;
assertEquals(numOfRecords, stats.getRecordWritten());
assertEquals(numOfRecords * numOfCharsPerRecord, stats.getBytesWritten());
assertTrue(stats.getOutputNames().size() == 2);
for (String fname : stats.getOutputNames()) {
assertTrue(fname.equals(OUTPUT_FILE) || fname.equals(OUTPUT_FILE_2));
if (fname.equals(OUTPUT_FILE)) {
assertEquals(3, stats.getNumberRecords(fname));
} else {
assertEquals(2, stats.getNumberRecords(fname));
}
}
assertEquals("A,B,C",
((JobStats)stats.getJobGraph().getSinks().get(0)).getAlias());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, OUTPUT_FILE_2);
}
}
@Test
public void simpleMultiQueryTest2() throws Exception {
final String OUTPUT_FILE_2 = "output2";
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = filter A by a0 >= 4;");
w.println("C = filter A by a0 < 4;");
w.println("D = group C by a0;");
w.println("E = foreach D generate group, COUNT(C);");
w.println("store B into '" + OUTPUT_FILE_2 + "';");
w.println("store E into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertTrue(stats.getJobGraph().size() == 1);
// Each output file should include the following:
// output:
// 5\t3\t4\n
// 5\t6\t7\n
// output2:
// 1\t1\n
// 3\t2\n
final int numOfRecords1 = 2;
final int numOfRecords2 = 2;
final int numOfCharsPerRecord1 = 6;
final int numOfCharsPerRecord2 = 4;
assertEquals(numOfRecords1 + numOfRecords2, stats.getRecordWritten());
assertEquals((numOfRecords1 * numOfCharsPerRecord1) + (numOfRecords2 * numOfCharsPerRecord2),
stats.getBytesWritten());
assertTrue(stats.getOutputNames().size() == 2);
for (String fname : stats.getOutputNames()) {
assertTrue(fname.equals(OUTPUT_FILE) || fname.equals(OUTPUT_FILE_2));
if (fname.equals(OUTPUT_FILE)) {
assertEquals(2, stats.getNumberRecords(fname));
} else {
assertEquals(2, stats.getNumberRecords(fname));
}
}
assertEquals("A,B,C,D,E",
((JobStats)stats.getJobGraph().getSinks().get(0)).getAlias());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, OUTPUT_FILE_2);
}
}
@Test
public void MQDepJobFailedTest() throws Exception {
final String OUTPUT_FILE_2 = "output2";
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (name:chararray, a1:int, a2:int);");
w.println("store A into '" + OUTPUT_FILE_2 + "';");
w.println("B = FOREACH A GENERATE org.apache.pig.test.utils.UPPER(name);");
w.println("C= order B by $0;");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, null);
Iterator<JobStats> iter = stats.getJobGraph().iterator();
while (iter.hasNext()) {
JobStats js=iter.next();
if(js.getState().name().equals("FAILED")) {
List<Operator> ops=stats.getJobGraph().getSuccessors(js);
for(Operator op : ops ) {
assertEquals(((JobStats)op).getState().toString(), "UNKNOWN");
}
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, OUTPUT_FILE_2);
}
}
@Test
public void simpleNegativeTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = group A by a;");
w.println("C = foreach B generate group, COUNT(A);");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
String[] args = { "-c", PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(stats.getReturnCode() == ReturnCode.PIG_EXCEPTION);
// TODO: error message has changed. Need to catch the new message generated from the
// new parser.
// assertTrue(stats.getErrorCode() == 1000);
// assertEquals("Error during parsing. Invalid alias: a in {a0: int,a1: int,a2: int}",
// stats.getErrorMessage());
}
@Test
public void simpleNegativeTest2() throws Exception {
String[] args = { "-c", "-e", "this is a test" };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.getReturnCode() == ReturnCode.ILLEGAL_ARGS);
}
@Test
public void simpleNegativeTest3() throws Exception {
String[] args = { "-c", "-y" };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.getReturnCode() == ReturnCode.PARSE_EXCEPTION);
assertEquals("Found unknown option (-y) at position 2",
stats.getErrorMessage());
}
@Test
public void NagetiveTest() throws Exception {
final String OUTPUT_FILE_2 = "output2";
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = foreach A generate 1;");
w.println("C = foreach A generate 0/0;");
w.println("store B into '" + OUTPUT_FILE + "';");
w.println("store C into '" + OUTPUT_FILE_2 + "';");
w.println("D = load '" + OUTPUT_FILE_2 + "';");
w.println("E = stream D through `false`;");
w.println("store E into 'ee';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(!stats.isSuccessful());
assertTrue(stats.getReturnCode() == ReturnCode.PARTIAL_FAILURE);
assertTrue(stats.getJobGraph().size() == 2);
JobStats job = (JobStats)stats.getJobGraph().getSources().get(0);
assertTrue(job.isSuccessful());
job = (JobStats)stats.getJobGraph().getSinks().get(0);
assertTrue(!job.isSuccessful());
assertTrue(stats.getOutputStats().size() == 3);
for (OutputStats output : stats.getOutputStats()) {
if (output.getName().equals("ee")) {
assertTrue(!output.isSuccessful());
} else {
assertTrue(output.isSuccessful());
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, OUTPUT_FILE_2);
}
}
@Test
public void testIsTempFile() throws Exception {
PigContext context = new PigContext(ExecType.LOCAL, new Properties());
context.connect();
for (int i=0; i<100; i++) {
String file = FileLocalizer.getTemporaryPath(context).toString();
assertTrue("not a temp file: " + file, PigStatsUtil.isTempFile(file));
}
}
@Test
public void testCounterName() throws Exception {
String s = "jdbc:hsqldb:file:/tmp/batchtest;hsqldb.default_table_type=cached;hsqldb.cache_rows=100";
String name = PigStatsUtil.getMultiInputsCounterName(s, 0);
assertEquals(PigStatsUtil.MULTI_INPUTS_RECORD_COUNTER + "_0_batchtest", name);
s = "file:///tmp/batchtest{1,2}.txt";
name = PigStatsUtil.getMultiInputsCounterName(s, 1);
assertEquals(PigStatsUtil.MULTI_INPUTS_RECORD_COUNTER + "_1_batchtest{1,2}.txt", name);
s = "file:///tmp/batchtest*.txt";
name = PigStatsUtil.getMultiInputsCounterName(s, 2);
assertEquals(PigStatsUtil.MULTI_INPUTS_RECORD_COUNTER + "_2_batchtest*.txt", name);
}
@Test
public void testLongCounterName() throws Exception {
// Pig now restricts the string size of its counter name to less than 64 characters.
PrintWriter w = new PrintWriter(new FileWriter("myinputfile"));
w.println("1\t2\t3");
w.println("5\t3\t4");
w.println("3\t4\t5");
w.println("5\t6\t7");
w.println("3\t7\t8");
w.close();
String longfilename = "longlonglonglonglonglonglonglonglonglonglonglongfilefilefilename";
Util.copyFromLocalToCluster(cluster, "myinputfile", longfilename);
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = load '" + longfilename + "' as (a0:int, a1:int, a2:int);");
w1.println("C = join A by a0, B by a0;");
w1.println("store C into '" + OUTPUT_FILE + "';");
w1.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<InputStats> inputs = stats.getInputStats();
assertEquals(2, inputs.size());
for (InputStats instats : inputs) {
assertEquals(5, instats.getNumberRecords());
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void testDuplicateCounterName() throws Exception {
// Pig now restricts the string size of its counter name to less than 64 characters.
PrintWriter w = new PrintWriter(new FileWriter("myinputfile"));
w.println("1\t2\t3");
w.println("5\t3\t4");
w.close();
String samefilename = "tmp/input";
Util.copyFromLocalToCluster(cluster, "myinputfile", samefilename);
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = load '" + samefilename + "' as (a0:int, a1:int, a2:int);");
w1.println("C = join A by a0, B by a0;");
w1.println("store C into '" + OUTPUT_FILE + "';");
w1.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<InputStats> inputs = stats.getInputStats();
assertEquals(2, inputs.size());
for (InputStats instats : inputs) {
if (instats.getLocation().endsWith("tmp/input")) {
assertEquals(2, instats.getNumberRecords());
} else {
assertEquals(5, instats.getNumberRecords());
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void testDuplicateCounterName2() throws Exception {
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = filter A by a0 > 3;");
w1.println("store A into 'output';");
w1.println("store B into 'tmp/output';");
w1.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<OutputStats> outputs = stats.getOutputStats();
assertEquals(2, outputs.size());
for (OutputStats outstats : outputs) {
if (outstats.getLocation().endsWith("tmp/output")) {
assertEquals(2, outstats.getNumberRecords());
} else {
assertEquals(5, outstats.getNumberRecords());
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, "tmp/output");
}
}
@Test
public void testRegisterExternalJar() throws Exception {
String[] args = { "-Dpig.additional.jars=pig-withouthadoop.jar",
"-Dmapred.job.queue.name=default",
"-e", "A = load '" + INPUT_FILE + "';store A into '" + OUTPUT_FILE + "';\n" };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
Util.deleteFile(cluster, OUTPUT_FILE);
java.lang.reflect.Method getPigContext = stats.getClass()
.getDeclaredMethod("getPigContext");
getPigContext.setAccessible(true);
PigContext ctx = (PigContext) getPigContext.invoke(stats);
Assert.assertNotNull(ctx);
assertTrue(ctx.extraJars.contains(ClassLoader.getSystemResource("pig-withouthadoop.jar")));
assertTrue("default", ctx.getProperties().getProperty("mapred.job.queue.name")!=null && ctx.getProperties().getProperty("mapred.job.queue.name").equals("default")||
ctx.getProperties().getProperty("mapreduce.job.queuename")!=null && ctx.getProperties().getProperty("mapreduce.job.queuename").equals("default"));
}
@Test
public void classLoaderTest() throws Exception {
// Skip in hadoop 23 test, see PIG-2449
if (Util.isHadoop23() || Util.isHadoop2_0())
return;
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("register test/org/apache/pig/test/data/pigtestloader.jar");
w.println("A = load '" + INPUT_FILE + "' using org.apache.pig.test.PigTestLoader();");
w.println("store A into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void fsCommandTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("fs -mv nonexist.file dummy.file");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(!stats.isSuccessful());
assertTrue(stats.getReturnCode() == PigRunner.ReturnCode.IO_EXCEPTION);
} finally {
new File(PIG_FILE).delete();
}
}
@Test // PIG-2006
public void testEmptyFile() throws IOException {
File f1 = new File( PIG_FILE );
FileWriter fw1 = new FileWriter(f1);
fw1.close();
try {
String[] args = { "-x", "local", "-c", PIG_FILE };
PigStats stats = PigRunner.run(args, null);
Assert.assertTrue(stats.isSuccessful());
Assert.assertEquals( 0, stats.getReturnCode() );
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void returnCodeTest() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load 'non-existine.file' as (a0:int, a1:int, a2:int);");
w.println("B = filter A by a0 > 0;;");
w.println("C = group B by $0;");
w.println("D = join C by $0, B by $0;");
w.println("store D into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(!stats.isSuccessful());
assertTrue(stats.getReturnCode() != 0);
assertTrue(stats.getOutputStats().size() == 0);
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test
public void returnCodeTest2() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load 'non-existine.file' as (a0, a1);");
w.println("B = load 'data' as (b0, b1);");
w.println("C = join B by b0, A by a0 using 'repl';");
w.println("store C into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, null);
assertTrue(!stats.isSuccessful());
assertTrue(stats.getReturnCode() != 0);
assertTrue(stats.getOutputStats().size() == 0);
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test //PIG-1893
public void testEmptyFileCounter() throws Exception {
PrintWriter w = new PrintWriter(new FileWriter("myinputfile"));
w.close();
Util.copyFromLocalToCluster(cluster, "myinputfile", "1.txt");
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = load '1.txt' as (a0:int, a1:int, a2:int);");
w1.println("C = join A by a0, B by a0;");
w1.println("store C into '" + OUTPUT_FILE + "';");
w1.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<InputStats> inputs = stats.getInputStats();
assertEquals(2, inputs.size());
for (InputStats instats : inputs) {
if (instats.getLocation().endsWith("1.txt")) {
assertEquals(0, instats.getNumberRecords());
} else {
assertEquals(5, instats.getNumberRecords());
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test //PIG-1893
public void testEmptyFileCounter2() throws Exception {
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = filter A by a0 < 0;");
w1.println("store A into '" + OUTPUT_FILE + "';");
w1.println("store B into 'output2';");
w1.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<OutputStats> outputs = stats.getOutputStats();
assertEquals(2, outputs.size());
for (OutputStats outstats : outputs) {
if (outstats.getLocation().endsWith("output2")) {
assertEquals(0, outstats.getNumberRecords());
} else {
assertEquals(5, outstats.getNumberRecords());
}
}
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, "output2");
}
}
@Test // PIG-2208: Restrict number of PIG generated Haddop counters
public void testDisablePigCounters() throws Exception {
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("C = join A by a0, B by a0;");
w1.println("store C into '" + OUTPUT_FILE + "';");
w1.close();
try {
String[] args = { "-Dpig.disable.counter=true", PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<InputStats> inputs = stats.getInputStats();
assertEquals(2, inputs.size());
for (InputStats instats : inputs) {
// the multi-input counters are disabled
assertEquals(-1, instats.getNumberRecords());
}
List<OutputStats> outputs = stats.getOutputStats();
assertEquals(1, outputs.size());
OutputStats outstats = outputs.get(0);
assertEquals(9, outstats.getNumberRecords());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
}
}
@Test //Pig-2358
public void testGetHadoopCounters() throws Exception {
final String OUTPUT_FILE_2 = "output2";
PrintWriter w = new PrintWriter(new FileWriter(PIG_FILE));
w.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w.println("B = filter A by a0 >= 4;");
w.println("C = filter A by a0 < 4;");
w.println("D = group C by a0;");
w.println("E = foreach D generate group, COUNT(C);");
w.println("store B into '" + OUTPUT_FILE_2 + "';");
w.println("store E into '" + OUTPUT_FILE + "';");
w.close();
try {
String[] args = { PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
Counters counter= ((JobStats)stats.getJobGraph().getSinks().get(0)).getHadoopCounters();
assertEquals(5, counter.getGroup(PigStatsUtil.TASK_COUNTER_GROUP).getCounterForName(
PigStatsUtil.MAP_INPUT_RECORDS).getValue());
assertEquals(3, counter.getGroup(PigStatsUtil.TASK_COUNTER_GROUP).getCounterForName(
PigStatsUtil.MAP_OUTPUT_RECORDS).getValue());
assertEquals(2, counter.getGroup(PigStatsUtil.TASK_COUNTER_GROUP).getCounterForName(
PigStatsUtil.REDUCE_INPUT_RECORDS).getValue());
assertEquals(0, counter.getGroup(PigStatsUtil.TASK_COUNTER_GROUP).getCounterForName(
PigStatsUtil.REDUCE_OUTPUT_RECORDS).getValue());
assertEquals(20,counter.getGroup(PigStatsUtil.FS_COUNTER_GROUP).getCounterForName(
PigStatsUtil.HDFS_BYTES_WRITTEN).getValue());
// Skip for hadoop 20.203+, See PIG-2446
if (Util.isHadoop203plus())
return;
assertEquals(30,counter.getGroup(PigStatsUtil.FS_COUNTER_GROUP).getCounterForName(
PigStatsUtil.HDFS_BYTES_READ).getValue());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, OUTPUT_FILE_2);
}
}
@Test // PIG-2208: Restrict number of PIG generated Haddop counters
public void testDisablePigCounters2() throws Exception {
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A = load '" + INPUT_FILE + "' as (a0:int, a1:int, a2:int);");
w1.println("B = filter A by a0 > 3;");
w1.println("store A into 'output';");
w1.println("store B into 'tmp/output';");
w1.close();
try {
String[] args = { "-Dpig.disable.counter=true", PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(stats.isSuccessful());
assertEquals(1, stats.getNumberJobs());
List<OutputStats> outputs = stats.getOutputStats();
assertEquals(2, outputs.size());
for (OutputStats outstats : outputs) {
// the multi-output counters are disabled
assertEquals(-1, outstats.getNumberRecords());
}
List<InputStats> inputs = stats.getInputStats();
assertEquals(1, inputs.size());
InputStats instats = inputs.get(0);
assertEquals(5, instats.getNumberRecords());
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, "tmp/output");
}
}
/**
* PIG-2780: In this test case, Pig submits three jobs at the same time and
* one of them will fail due to nonexistent input file. If users enable
* stop.on.failure, then Pig should immediately stop if anyone of the three
* jobs has failed.
*/
@Test
public void testStopOnFailure() throws Exception {
PrintWriter w1 = new PrintWriter(new FileWriter(PIG_FILE));
w1.println("A1 = load '" + INPUT_FILE + "';");
w1.println("B1 = load 'nonexist';");
w1.println("C1 = load '" + INPUT_FILE + "';");
w1.println("A2 = distinct A1;");
w1.println("B2 = distinct B1;");
w1.println("C2 = distinct C1;");
w1.println("ret = union A2,B2,C2;");
w1.println("store ret into 'tmp/output';");
w1.close();
try {
String[] args = { "-F", PIG_FILE };
PigStats stats = PigRunner.run(args, new TestNotificationListener());
assertTrue(!stats.isSuccessful());
int successfulJobs = 0;
Iterator<Operator> it = stats.getJobGraph().getOperators();
while (it.hasNext()){
JobStats js = (JobStats)it.next();
if (js.isSuccessful())
successfulJobs++;
}
// we should have less than 2 successful jobs
assertTrue("Should have less than 2 successful jobs", successfulJobs < 2);
} finally {
new File(PIG_FILE).delete();
Util.deleteFile(cluster, OUTPUT_FILE);
Util.deleteFile(cluster, "tmp/output");
}
}
public static class TestNotificationListener implements PigProgressNotificationListener {
private Map<String, int[]> numMap = new HashMap<String, int[]>();
private static final int JobsToLaunch = 0;
private static final int JobsSubmitted = 1;
private static final int JobStarted = 2;
private static final int JobFinished = 3;
@Override
public void initialPlanNotification(String id, MROperPlan plan) {
System.out.println("id: " + id + " planNodes: " + plan.getKeys().size());
assertNotNull(plan);
}
@Override
public void launchStartedNotification(String id, int numJobsToLaunch) {
System.out.println("id: " + id + " numJobsToLaunch: " + numJobsToLaunch);
int[] nums = new int[4];
numMap.put(id, nums);
nums[JobsToLaunch] = numJobsToLaunch;
}
@Override
public void jobFailedNotification(String id, JobStats jobStats) {
System.out.println("id: " + id + " job failed: " + jobStats.getJobId());
}
@Override
public void jobFinishedNotification(String id, JobStats jobStats) {
System.out.println("id: " + id + " job finished: " + jobStats.getJobId());
int[] nums = numMap.get(id);
nums[JobFinished]++;
}
@Override
public void jobStartedNotification(String id, String assignedJobId) {
System.out.println("id: " + id + " job started: " + assignedJobId);
int[] nums = numMap.get(id);
nums[JobStarted]++;
}
@Override
public void jobsSubmittedNotification(String id, int numJobsSubmitted) {
System.out.println("id: " + id + " jobs submitted: " + numJobsSubmitted);
int[] nums = numMap.get(id);
nums[JobsSubmitted] += numJobsSubmitted;
}
@Override
public void launchCompletedNotification(String id, int numJobsSucceeded) {
System.out.println("id: " + id + " numJobsSucceeded: " + numJobsSucceeded);
System.out.println("");
int[] nums = numMap.get(id);
assertEquals(nums[JobsToLaunch], numJobsSucceeded);
assertEquals(nums[JobsSubmitted], numJobsSucceeded);
assertEquals(nums[JobStarted], numJobsSucceeded);
assertEquals(nums[JobFinished], numJobsSucceeded);
}
@Override
public void outputCompletedNotification(String id, OutputStats outputStats) {
System.out.println("id: " + id + " output done: " + outputStats.getLocation());
}
@Override
public void progressUpdatedNotification(String id, int progress) {
System.out.println("id: " + id + " progress: " + progress + "%");
}
}
private void deleteAll(File d) {
if (!d.exists()) return;
if (d.isDirectory()) {
for (File f : d.listFiles()) {
deleteAll(f);
}
}
d.delete();
}
}