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MAPREDUCE-4991. coverage for gridmix (Aleksey Gorshkov via tgraves) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1463808 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas Graves 2013-04-03 01:47:31 +00:00
parent a7cdea51fa
commit e9e576409c
16 changed files with 3574 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hadoop-mapreduce-project/CHANGES.txt
View File

@ -708,6 +708,8 @@ Release 0.23.7 - UNRELEASED
MAPREDUCE-5053. java.lang.InternalError from decompression codec cause
reducer to fail (Robert Parker via jeagles)
MAPREDUCE-4991. coverage for gridmix (Aleksey Gorshkov via tgraves)
Release 0.23.6 - UNRELEASED
INCOMPATIBLE CHANGES

14
hadoop-tools/hadoop-gridmix/pom.xml
View File

@ -91,6 +91,11 @@
<type>test-jar</type>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
@ -115,6 +120,15 @@
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.rat</groupId>
<artifactId>apache-rat-plugin</artifactId>
<configuration>
<excludes>
<exclude>src/test/resources/data/*</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>

12
hadoop-tools/hadoop-gridmix/src/main/java/org/apache/hadoop/mapred/gridmix/Gridmix.java
View File

@ -37,6 +37,7 @@ import org.apache.hadoop.mapred.gridmix.GenerateData.DataStatistics;
import org.apache.hadoop.mapred.gridmix.Statistics.JobStats;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.ExitUtil;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.util.Tool;
@ -136,6 +137,7 @@ public class Gridmix extends Configured implements Tool {
private DistributedCacheEmulator distCacheEmulator;
// Submit data structures
@SuppressWarnings("rawtypes")
private JobFactory factory;
private JobSubmitter submitter;
private JobMonitor monitor;
@ -176,6 +178,7 @@ public class Gridmix extends Configured implements Tool {
* @see org.apache.hadoop.mapred.gridmix.GenerateData
* @return exit status
*/
@SuppressWarnings("deprecation")
protected int writeInputData(long genbytes, Path inputDir)
throws IOException, InterruptedException {
if (genbytes > 0) {
@ -287,6 +290,7 @@ public class Gridmix extends Configured implements Tool {
* @param scratchDir Path into which job output is written
* @param startFlag Semaphore for starting job trace pipeline
*/
@SuppressWarnings("unchecked")
private void startThreads(Configuration conf, String traceIn, Path ioPath,
Path scratchDir, CountDownLatch startFlag, UserResolver userResolver)
throws IOException {
@ -345,6 +349,7 @@ public class Gridmix extends Configured implements Tool {
return new JobSubmitter(monitor, threads, queueDepth, pool, statistics);
}
@SuppressWarnings("rawtypes")
protected JobFactory createJobFactory(JobSubmitter submitter, String traceIn,
Path scratchDir, Configuration conf, CountDownLatch startFlag,
UserResolver resolver)
@ -383,6 +388,7 @@ public class Gridmix extends Configured implements Tool {
return val;
}
@SuppressWarnings("deprecation")
private int runJob(Configuration conf, String[] argv)
throws IOException, InterruptedException {
if (argv.length < 2) {
@ -693,7 +699,7 @@ public class Gridmix extends Configured implements Tool {
try {
res = ToolRunner.run(new Configuration(), new Gridmix(argv), argv);
} finally {
System.exit(res);
ExitUtil.terminate(res);
}
}
@ -800,6 +806,10 @@ public class Gridmix extends Configured implements Tool {
*/
void abort();
}
// it is need for tests
protected Summarizer getSummarizer() {
return summarizer;
}
}

4
hadoop-tools/hadoop-gridmix/src/main/java/org/apache/hadoop/mapred/gridmix/SerialJobFactory.java
View File

@ -175,4 +175,8 @@ public class SerialJobFactory extends JobFactory<JobStats> {
LOG.info(" Starting Serial submission ");
this.rThread.start();
}
// it is need for test
void setDistCacheEmulator(DistributedCacheEmulator e) {
jobCreator.setDistCacheEmulator(e);
}
}

384
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/CommonJobTest.java Normal file
View File

@ -0,0 +1,384 @@
/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.gridmix;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.LocatedFileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.RemoteIterator;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.mapred.Counters;
import org.apache.hadoop.mapred.JobClient;
import org.apache.hadoop.mapred.JobID;
import org.apache.hadoop.mapred.TaskReport;
import org.apache.hadoop.mapreduce.Counter;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.TaskCounter;
import org.apache.hadoop.mapreduce.TaskType;
import org.apache.hadoop.tools.rumen.TaskInfo;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.tools.rumen.JobStory;
import org.apache.hadoop.util.ToolRunner;
public class CommonJobTest {
public static final Log LOG = LogFactory.getLog(Gridmix.class);
protected static int NJOBS = 2;
protected static final long GENDATA = 1; // in megabytes
protected static GridmixJobSubmissionPolicy policy = GridmixJobSubmissionPolicy.REPLAY;
private static File workspace = new File("target" + File.separator
+ TestGridmixSubmission.class.getName() + "-test");
static class DebugGridmix extends Gridmix {
private JobFactory<?> factory;
private TestMonitor monitor;
@Override
protected JobMonitor createJobMonitor(Statistics stats, Configuration conf)
throws IOException {
monitor = new TestMonitor(3, stats);
return monitor;
}
@Override
protected JobFactory<?> createJobFactory(JobSubmitter submitter,
String traceIn, Path scratchDir, Configuration conf,
CountDownLatch startFlag, UserResolver userResolver) throws IOException {
factory = DebugJobFactory.getFactory(submitter, scratchDir, NJOBS, conf,
startFlag, userResolver);
return factory;
}
public void checkMonitor() throws Exception {
monitor.verify(((DebugJobFactory.Debuggable) factory).getSubmitted());
}
}
static class TestMonitor extends JobMonitor {
private final BlockingQueue<Job> retiredJobs;
private final int expected;
static final long SLOPBYTES = 1024;
public TestMonitor(int expected, Statistics stats) {
super(3, TimeUnit.SECONDS, stats, 1);
this.expected = expected;
retiredJobs = new LinkedBlockingQueue<Job>();
}
@Override
protected void onSuccess(Job job) {
LOG.info(" Job Success " + job);
retiredJobs.add(job);
}
@Override
protected void onFailure(Job job) {
fail("Job failure: " + job);
}
public void verify(ArrayList<JobStory> submitted) throws Exception {
assertEquals("Bad job count", expected, retiredJobs.size());
final ArrayList<Job> succeeded = new ArrayList<Job>();
assertEquals("Bad job count", expected, retiredJobs.drainTo(succeeded));
final HashMap<String, JobStory> sub = new HashMap<String, JobStory>();
for (JobStory spec : submitted) {
sub.put(spec.getJobID().toString(), spec);
}
for (Job job : succeeded) {
final String jobName = job.getJobName();
Configuration configuration = job.getConfiguration();
if (GenerateData.JOB_NAME.equals(jobName)) {
RemoteIterator<LocatedFileStatus> rit = GridmixTestUtils.dfs
.listFiles(new Path("/"), true);
while (rit.hasNext()) {
System.out.println(rit.next().toString());
}
final Path in = new Path("foo").makeQualified(
GridmixTestUtils.dfs.getUri(),
GridmixTestUtils.dfs.getWorkingDirectory());
// data was compressed. All files = compressed test size+ logs= 1000000/2 + logs
final ContentSummary generated = GridmixTestUtils.dfs
.getContentSummary(in);
assertEquals(550000, generated.getLength(), 10000);
Counter counter = job.getCounters()
.getGroup("org.apache.hadoop.mapreduce.FileSystemCounter")
.findCounter("HDFS_BYTES_WRITTEN");
assertEquals(generated.getLength(), counter.getValue());
continue;
} else if (GenerateDistCacheData.JOB_NAME.equals(jobName)) {
continue;
}
final String originalJobId = configuration.get(Gridmix.ORIGINAL_JOB_ID);
final JobStory spec = sub.get(originalJobId);
assertNotNull("No spec for " + jobName, spec);
assertNotNull("No counters for " + jobName, job.getCounters());
final String originalJobName = spec.getName();
System.out.println("originalJobName=" + originalJobName
+ ";GridmixJobName=" + jobName + ";originalJobID=" + originalJobId);
assertTrue("Original job name is wrong.",
originalJobName.equals(configuration.get(Gridmix.ORIGINAL_JOB_NAME)));
// Gridmix job seqNum contains 6 digits
int seqNumLength = 6;
String jobSeqNum = new DecimalFormat("000000").format(configuration.getInt(
GridmixJob.GRIDMIX_JOB_SEQ, -1));
// Original job name is of the format MOCKJOB<6 digit sequence number>
// because MockJob jobNames are of this format.
assertTrue(originalJobName.substring(
originalJobName.length() - seqNumLength).equals(jobSeqNum));
assertTrue("Gridmix job name is not in the expected format.",
jobName.equals(GridmixJob.JOB_NAME_PREFIX + jobSeqNum));
final FileStatus stat = GridmixTestUtils.dfs.getFileStatus(new Path(
GridmixTestUtils.DEST, "" + Integer.valueOf(jobSeqNum)));
assertEquals("Wrong owner for " + jobName, spec.getUser(),
stat.getOwner());
final int nMaps = spec.getNumberMaps();
final int nReds = spec.getNumberReduces();
final JobClient client = new JobClient(
GridmixTestUtils.mrvl.getConfig());
final TaskReport[] mReports = client.getMapTaskReports(JobID
.downgrade(job.getJobID()));
assertEquals("Mismatched map count", nMaps, mReports.length);
check(TaskType.MAP, spec, mReports, 0, 0, SLOPBYTES, nReds);
final TaskReport[] rReports = client.getReduceTaskReports(JobID
.downgrade(job.getJobID()));
assertEquals("Mismatched reduce count", nReds, rReports.length);
check(TaskType.REDUCE, spec, rReports, nMaps * SLOPBYTES, 2 * nMaps, 0,
0);
}
}
// Verify if correct job queue is used
private void check(final TaskType type, JobStory spec,
final TaskReport[] runTasks, long extraInputBytes,
int extraInputRecords, long extraOutputBytes, int extraOutputRecords)
throws Exception {
long[] runInputRecords = new long[runTasks.length];
long[] runInputBytes = new long[runTasks.length];
long[] runOutputRecords = new long[runTasks.length];
long[] runOutputBytes = new long[runTasks.length];
long[] specInputRecords = new long[runTasks.length];
long[] specInputBytes = new long[runTasks.length];
long[] specOutputRecords = new long[runTasks.length];
long[] specOutputBytes = new long[runTasks.length];
for (int i = 0; i < runTasks.length; ++i) {
final TaskInfo specInfo;
final Counters counters = runTasks[i].getCounters();
switch (type) {
case MAP:
runInputBytes[i] = counters.findCounter("FileSystemCounters",
"HDFS_BYTES_READ").getValue()
- counters.findCounter(TaskCounter.SPLIT_RAW_BYTES).getValue();
runInputRecords[i] = (int) counters.findCounter(
TaskCounter.MAP_INPUT_RECORDS).getValue();
runOutputBytes[i] = counters
.findCounter(TaskCounter.MAP_OUTPUT_BYTES).getValue();
runOutputRecords[i] = (int) counters.findCounter(
TaskCounter.MAP_OUTPUT_RECORDS).getValue();
specInfo = spec.getTaskInfo(TaskType.MAP, i);
specInputRecords[i] = specInfo.getInputRecords();
specInputBytes[i] = specInfo.getInputBytes();
specOutputRecords[i] = specInfo.getOutputRecords();
specOutputBytes[i] = specInfo.getOutputBytes();
LOG.info(String.format(type + " SPEC: %9d -> %9d :: %5d -> %5d\n",
specInputBytes[i], specOutputBytes[i], specInputRecords[i],
specOutputRecords[i]));
LOG.info(String.format(type + " RUN: %9d -> %9d :: %5d -> %5d\n",
runInputBytes[i], runOutputBytes[i], runInputRecords[i],
runOutputRecords[i]));
break;
case REDUCE:
runInputBytes[i] = 0;
runInputRecords[i] = (int) counters.findCounter(
TaskCounter.REDUCE_INPUT_RECORDS).getValue();
runOutputBytes[i] = counters.findCounter("FileSystemCounters",
"HDFS_BYTES_WRITTEN").getValue();
runOutputRecords[i] = (int) counters.findCounter(
TaskCounter.REDUCE_OUTPUT_RECORDS).getValue();
specInfo = spec.getTaskInfo(TaskType.REDUCE, i);
// There is no reliable counter for reduce input bytes. The
// variable-length encoding of intermediate records and other noise
// make this quantity difficult to estimate. The shuffle and spec
// input bytes are included in debug output for reference, but are
// not checked
specInputBytes[i] = 0;
specInputRecords[i] = specInfo.getInputRecords();
specOutputRecords[i] = specInfo.getOutputRecords();
specOutputBytes[i] = specInfo.getOutputBytes();
LOG.info(String.format(type + " SPEC: (%9d) -> %9d :: %5d -> %5d\n",
specInfo.getInputBytes(), specOutputBytes[i],
specInputRecords[i], specOutputRecords[i]));
LOG.info(String
.format(type + " RUN: (%9d) -> %9d :: %5d -> %5d\n", counters
.findCounter(TaskCounter.REDUCE_SHUFFLE_BYTES).getValue(),
runOutputBytes[i], runInputRecords[i], runOutputRecords[i]));
break;
default:
fail("Unexpected type: " + type);
}
}
// Check input bytes
Arrays.sort(specInputBytes);
Arrays.sort(runInputBytes);
for (int i = 0; i < runTasks.length; ++i) {
assertTrue("Mismatched " + type + " input bytes " + specInputBytes[i]
+ "/" + runInputBytes[i],
eqPlusMinus(runInputBytes[i], specInputBytes[i], extraInputBytes));
}
// Check input records
Arrays.sort(specInputRecords);
Arrays.sort(runInputRecords);
for (int i = 0; i < runTasks.length; ++i) {
assertTrue(
"Mismatched " + type + " input records " + specInputRecords[i]
+ "/" + runInputRecords[i],
eqPlusMinus(runInputRecords[i], specInputRecords[i],
extraInputRecords));
}
// Check output bytes
Arrays.sort(specOutputBytes);
Arrays.sort(runOutputBytes);
for (int i = 0; i < runTasks.length; ++i) {
assertTrue(
"Mismatched " + type + " output bytes " + specOutputBytes[i] + "/"
+ runOutputBytes[i],
eqPlusMinus(runOutputBytes[i], specOutputBytes[i], extraOutputBytes));
}
// Check output records
Arrays.sort(specOutputRecords);
Arrays.sort(runOutputRecords);
for (int i = 0; i < runTasks.length; ++i) {
assertTrue(
"Mismatched " + type + " output records " + specOutputRecords[i]
+ "/" + runOutputRecords[i],
eqPlusMinus(runOutputRecords[i], specOutputRecords[i],
extraOutputRecords));
}
}
private static boolean eqPlusMinus(long a, long b, long x) {
final long diff = Math.abs(a - b);
return diff <= x;
}
}
protected void doSubmission(String jobCreatorName, boolean defaultOutputPath)
throws Exception {
final Path in = new Path("foo").makeQualified(
GridmixTestUtils.dfs.getUri(),
GridmixTestUtils.dfs.getWorkingDirectory());
final Path out = GridmixTestUtils.DEST.makeQualified(
GridmixTestUtils.dfs.getUri(),
GridmixTestUtils.dfs.getWorkingDirectory());
final Path root = new Path(workspace.getAbsolutePath());
if (!workspace.exists()) {
assertTrue(workspace.mkdirs());
}
Configuration conf = null;
try {
ArrayList<String> argsList = new ArrayList<String>();
argsList.add("-D" + FilePool.GRIDMIX_MIN_FILE + "=0");
argsList.add("-D" + Gridmix.GRIDMIX_USR_RSV + "="
+ EchoUserResolver.class.getName());
if (jobCreatorName != null) {
argsList.add("-D" + JobCreator.GRIDMIX_JOB_TYPE + "=" + jobCreatorName);
}
// Set the config property gridmix.output.directory only if
// defaultOutputPath is false. If defaultOutputPath is true, then
// let us allow gridmix to use the path foo/gridmix/ as output dir.
if (!defaultOutputPath) {
argsList.add("-D" + Gridmix.GRIDMIX_OUT_DIR + "=" + out);
}
argsList.add("-generate");
argsList.add(String.valueOf(GENDATA) + "m");
argsList.add(in.toString());
argsList.add("-"); // ignored by DebugGridmix
String[] argv = argsList.toArray(new String[argsList.size()]);
DebugGridmix client = new DebugGridmix();
conf = GridmixTestUtils.mrvl.getConfig();
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setEnum(GridmixJobSubmissionPolicy.JOB_SUBMISSION_POLICY, policy);
conf.setBoolean(GridmixJob.GRIDMIX_USE_QUEUE_IN_TRACE, true);
UserGroupInformation ugi = UserGroupInformation.getLoginUser();
conf.set(MRJobConfig.USER_NAME, ugi.getUserName());
// allow synthetic users to create home directories
GridmixTestUtils.dfs.mkdirs(root, new FsPermission((short) 777));
GridmixTestUtils.dfs.setPermission(root, new FsPermission((short) 777));
int res = ToolRunner.run(conf, client, argv);
assertEquals("Client exited with nonzero status", 0, res);
client.checkMonitor();
} catch (Exception e) {
e.printStackTrace();
} finally {
in.getFileSystem(conf).delete(in, true);
out.getFileSystem(conf).delete(out, true);
root.getFileSystem(conf).delete(root, true);
}
}
}

4
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/DebugJobFactory.java
View File

@ -29,13 +29,13 @@ import java.util.concurrent.CountDownLatch;
/**
* Component generating random job traces for testing on a single node.
*/
class DebugJobFactory {
public class DebugJobFactory {
interface Debuggable {
ArrayList<JobStory> getSubmitted();
}
public static JobFactory getFactory(
public static JobFactory<?> getFactory(
JobSubmitter submitter, Path scratch, int numJobs, Configuration conf,
CountDownLatch startFlag, UserResolver resolver) throws IOException {
GridmixJobSubmissionPolicy policy = GridmixJobSubmissionPolicy.getPolicy(

5
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/DebugJobProducer.java
View File

@ -216,7 +216,7 @@ public class DebugJobProducer implements JobStoryProducer {
if (user == null) {
user = String.format("foobar%d", id);
}
GridmixTestUtils.createHomeAndStagingDirectory(user, (JobConf)conf);
GridmixTestUtils.createHomeAndStagingDirectory(user, conf);
return user;
}
@ -264,6 +264,7 @@ public class DebugJobProducer implements JobStoryProducer {
throw new UnsupportedOperationException();
}
@SuppressWarnings({ "deprecation", "incomplete-switch" })
@Override
public TaskAttemptInfo getTaskAttemptInfo(
TaskType taskType, int taskNumber, int taskAttemptNumber) {
@ -300,7 +301,7 @@ public class DebugJobProducer implements JobStoryProducer {
@Override
public String getQueueName() {
String qName = "q" + ((id % 2) + 1);
String qName = "default";
return qName;
}

83
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/GridmixTestUtils.java
View File

@ -4,55 +4,76 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.mapred.MiniMRCluster;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.MiniMRClientCluster;
import org.apache.hadoop.mapred.MiniMRClientClusterFactory;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.server.jobtracker.JTConfig;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
import org.apache.hadoop.security.Groups;
import java.io.IOException;
/**
* 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
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.
* 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.
*/
public class GridmixTestUtils {
private static final Log LOG = LogFactory.getLog(GridmixTestUtils.class);
static final Path DEST = new Path("/gridmix");
static FileSystem dfs = null;
static MiniDFSCluster dfsCluster = null;
static MiniMRCluster mrCluster = null;
static MiniMRClientCluster mrvl = null;
protected static final String GRIDMIX_USE_QUEUE_IN_TRACE =
"gridmix.job-submission.use-queue-in-trace";
protected static final String GRIDMIX_DEFAULT_QUEUE =
"gridmix.job-submission.default-queue";
public static void initCluster() throws IOException {
public static void initCluster(Class<?> caller) throws IOException {
Configuration conf = new Configuration();
conf.set("mapred.queue.names", "default,q1,q2");
dfsCluster = new MiniDFSCluster(conf, 3, true, null);
// conf.set("mapred.queue.names", "default,q1,q2");
conf.set("mapred.queue.names", "default");
conf.set("yarn.scheduler.capacity.root.queues", "default");
conf.set("yarn.scheduler.capacity.root.default.capacity", "100.0");
conf.setBoolean(GRIDMIX_USE_QUEUE_IN_TRACE, false);
conf.set(GRIDMIX_DEFAULT_QUEUE, "default");
dfsCluster = new MiniDFSCluster.Builder(conf).numDataNodes(1).format(true)
.build();// MiniDFSCluster(conf, 3, true, null);
dfs = dfsCluster.getFileSystem();
conf.set(JTConfig.JT_RETIREJOBS, "false");
mrCluster = new MiniMRCluster(3, dfs.getUri().toString(), 1, null, null,
new JobConf(conf));
mrvl = MiniMRClientClusterFactory.create(caller, 2, conf);
conf = mrvl.getConfig();
String[] files = conf.getStrings(MRJobConfig.CACHE_FILES);
if (files != null) {
String[] timestamps = new String[files.length];
for (int i = 0; i < files.length; i++) {
timestamps[i] = Long.toString(System.currentTimeMillis());
}
conf.setStrings(MRJobConfig.CACHE_FILE_TIMESTAMPS, timestamps);
}
}
public static void shutdownCluster() throws IOException {
if (mrCluster != null) {
mrCluster.shutdown();
if (mrvl != null) {
mrvl.stop();
}
if (dfsCluster != null) {
dfsCluster.shutdown();
@ -64,19 +85,21 @@ public class GridmixTestUtils {
*
* @param conf
*/
public static void createHomeAndStagingDirectory(String user, JobConf conf) {
public static void createHomeAndStagingDirectory(String user,
Configuration conf) {
try {
FileSystem fs = dfsCluster.getFileSystem();
String path = "/user/" + user;
Path homeDirectory = new Path(path);
if(fs.exists(homeDirectory)) {
fs.delete(homeDirectory,true);
}
if (!fs.exists(homeDirectory)) {
LOG.info("Creating Home directory : " + homeDirectory);
fs.mkdirs(homeDirectory);
changePermission(user, homeDirectory, fs);
Path stagingArea =
new Path(conf.get("mapreduce.jobtracker.staging.root.dir",
}
changePermission(user, homeDirectory, fs);
Path stagingArea = new Path(
conf.get("mapreduce.jobtracker.staging.root.dir",
"/tmp/hadoop/mapred/staging"));
LOG.info("Creating Staging root directory : " + stagingArea);
fs.mkdirs(stagingArea);

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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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.gridmix;
import static org.junit.Assert.*;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsAction;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.MapContext;
import org.apache.hadoop.mapreduce.MapReduceTestUtil;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.lib.input.FileSplit;
import org.apache.hadoop.mapreduce.task.MapContextImpl;
import org.apache.hadoop.security.UserGroupInformation;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Validate emulation of distributed cache load in gridmix simulated jobs.
*
*/
public class TestDistCacheEmulation {
private DistributedCacheEmulator dce = null;
@BeforeClass
public static void init() throws IOException {
GridmixTestUtils.initCluster(TestDistCacheEmulation.class);
File target=new File("target"+File.separator+TestDistCacheEmulation.class.getName());
if(!target.exists()){
assertTrue(target.mkdirs());
}
}
@AfterClass
public static void shutDown() throws IOException {
GridmixTestUtils.shutdownCluster();
}
/**
* Validate the dist cache files generated by GenerateDistCacheData job.
*
* @param jobConf
* configuration of GenerateDistCacheData job.
* @param sortedFileSizes
* array of sorted distributed cache file sizes
* @throws IOException
* @throws FileNotFoundException
*/
private void validateDistCacheData(Configuration jobConf,
long[] sortedFileSizes) throws FileNotFoundException, IOException {
Path distCachePath = dce.getDistributedCacheDir();
String filesListFile = jobConf
.get(GenerateDistCacheData.GRIDMIX_DISTCACHE_FILE_LIST);
FileSystem fs = FileSystem.get(jobConf);
// Validate the existence of Distributed Cache files list file directly
// under distributed cache directory
Path listFile = new Path(filesListFile);
assertTrue("Path of Distributed Cache files list file is wrong.",
distCachePath.equals(listFile.getParent().makeQualified(fs.getUri(), fs.getWorkingDirectory())));
// Delete the dist cache files list file
assertTrue(
"Failed to delete distributed Cache files list file " + listFile,
fs.delete(listFile,true));
List<Long> fileSizes = new ArrayList<Long>();
for (long size : sortedFileSizes) {
fileSizes.add(size);
}
// validate dist cache files after deleting the 'files list file'
validateDistCacheFiles(fileSizes, distCachePath);
}
/**
* Validate private/public distributed cache files.
*
* @param filesSizesExpected
* list of sizes of expected dist cache files
* @param distCacheDir
* the distributed cache dir to be validated
* @throws IOException
* @throws FileNotFoundException
*/
private void validateDistCacheFiles(List<Long> filesSizesExpected, Path distCacheDir)
throws FileNotFoundException, IOException {
// RemoteIterator<LocatedFileStatus> iter =
FileStatus[] statuses = GridmixTestUtils.dfs.listStatus(distCacheDir);
int numFiles = filesSizesExpected.size();
assertEquals("Number of files under distributed cache dir is wrong.",
numFiles, statuses.length);
for (int i = 0; i < numFiles; i++) {
FileStatus stat = statuses[i];
assertTrue("File size of distributed cache file "
+ stat.getPath().toUri().getPath() + " is wrong.",
filesSizesExpected.remove(stat.getLen()));
FsPermission perm = stat.getPermission();
assertEquals("Wrong permissions for distributed cache file "
+ stat.getPath().toUri().getPath(), new FsPermission((short) 0644),
perm);
}
}
/**
* Configures 5 HDFS-based dist cache files and 1 local-FS-based dist cache
* file in the given Configuration object <code>conf</code>.
*
* @param conf
* configuration where dist cache config properties are to be set
* @return array of sorted HDFS-based distributed cache file sizes
* @throws IOException
*/
private long[] configureDummyDistCacheFiles(Configuration conf)
throws IOException {
String user = UserGroupInformation.getCurrentUser().getShortUserName();
conf.set("user.name", user);
// Set some dummy dist cache files in gridmix configuration so that they go
// into the configuration of JobStory objects.
String[] distCacheFiles = { "hdfs:///tmp/file1.txt",
"/tmp/" + user + "/.staging/job_1/file2.txt",
"hdfs:///user/user1/file3.txt", "/home/user2/file4.txt",
"subdir1/file5.txt", "subdir2/file6.gz" };
String[] fileSizes = { "400", "2500", "700", "1200", "1500", "500" };
String[] visibilities = { "true", "false", "false", "true", "true", "false" };
String[] timeStamps = { "1234", "2345", "34567", "5434", "125", "134" };
// DistributedCache.setCacheFiles(fileCaches, conf);
conf.setStrings(MRJobConfig.CACHE_FILES, distCacheFiles);
conf.setStrings(MRJobConfig.CACHE_FILES_SIZES, fileSizes);
conf.setStrings(JobContext.CACHE_FILE_VISIBILITIES, visibilities);
conf.setStrings(MRJobConfig.CACHE_FILE_TIMESTAMPS, timeStamps);
// local FS based dist cache file whose path contains <user>/.staging is
// not created on HDFS. So file size 2500 is not added to sortedFileSizes.
long[] sortedFileSizes = new long[] { 1500, 1200, 700, 500, 400 };
return sortedFileSizes;
}
/**
* Runs setupGenerateDistCacheData() on a new DistrbutedCacheEmulator and and
* returns the jobConf. Fills the array <code>sortedFileSizes</code> that can
* be used for validation. Validation of exit code from
* setupGenerateDistCacheData() is done.
*
* @param generate
* true if -generate option is specified
* @param sortedFileSizes
* sorted HDFS-based distributed cache file sizes
* @throws IOException
* @throws InterruptedException
*/
private Configuration runSetupGenerateDistCacheData(boolean generate,
long[] sortedFileSizes) throws IOException, InterruptedException {
Configuration conf = new Configuration();
long[] fileSizes = configureDummyDistCacheFiles(conf);
System.arraycopy(fileSizes, 0, sortedFileSizes, 0, fileSizes.length);
// Job stories of all 3 jobs will have same dist cache files in their
// configurations
final int numJobs = 3;
DebugJobProducer jobProducer = new DebugJobProducer(numJobs, conf);
Configuration jobConf = GridmixTestUtils.mrvl.getConfig();
Path ioPath = new Path("testSetupGenerateDistCacheData")
.makeQualified(GridmixTestUtils.dfs.getUri(),GridmixTestUtils.dfs.getWorkingDirectory());
FileSystem fs = FileSystem.get(jobConf);
if (fs.exists(ioPath)) {
fs.delete(ioPath, true);
}
FileSystem.mkdirs(fs, ioPath, new FsPermission((short) 0777));
dce = createDistributedCacheEmulator(jobConf, ioPath, generate);
int exitCode = dce.setupGenerateDistCacheData(jobProducer);
int expectedExitCode = generate ? 0
: Gridmix.MISSING_DIST_CACHE_FILES_ERROR;
assertEquals("setupGenerateDistCacheData failed.", expectedExitCode,
exitCode);
// reset back
resetDistCacheConfigProperties(jobConf);
return jobConf;
}
/**
* Reset the config properties related to Distributed Cache in the given job
* configuration <code>jobConf</code>.
*
* @param jobConf
* job configuration
*/
private void resetDistCacheConfigProperties(Configuration jobConf) {
// reset current/latest property names
jobConf.setStrings(MRJobConfig.CACHE_FILES, "");
jobConf.setStrings(MRJobConfig.CACHE_FILES_SIZES, "");
jobConf.setStrings(MRJobConfig.CACHE_FILE_TIMESTAMPS, "");
jobConf.setStrings(JobContext.CACHE_FILE_VISIBILITIES, "");
// reset old property names
jobConf.setStrings("mapred.cache.files", "");
jobConf.setStrings("mapred.cache.files.filesizes", "");
jobConf.setStrings("mapred.cache.files.visibilities", "");
jobConf.setStrings("mapred.cache.files.timestamps", "");
}
/**
* Validate GenerateDistCacheData job if it creates dist cache files properly.
*
* @throws Exception
*/
@Test (timeout=200000)
public void testGenerateDistCacheData() throws Exception {
long[] sortedFileSizes = new long[5];
Configuration jobConf = runSetupGenerateDistCacheData(true, sortedFileSizes);
GridmixJob gridmixJob = new GenerateDistCacheData(jobConf);
Job job = gridmixJob.call();
assertEquals("Number of reduce tasks in GenerateDistCacheData is not 0.",
0, job.getNumReduceTasks());
assertTrue("GenerateDistCacheData job failed.",
job.waitForCompletion(false));
validateDistCacheData(jobConf, sortedFileSizes);
}
/**
* Validate setupGenerateDistCacheData by validating <li>permissions of the
* distributed cache directories and <li>content of the generated sequence
* file. This includes validation of dist cache file paths and their file
* sizes.
*/
private void validateSetupGenDC(Configuration jobConf, long[] sortedFileSizes)
throws IOException, InterruptedException {
// build things needed for validation
long sumOfFileSizes = 0;
for (int i = 0; i < sortedFileSizes.length; i++) {
sumOfFileSizes += sortedFileSizes[i];
}
FileSystem fs = FileSystem.get(jobConf);
assertEquals("Number of distributed cache files to be generated is wrong.",
sortedFileSizes.length,
jobConf.getInt(GenerateDistCacheData.GRIDMIX_DISTCACHE_FILE_COUNT, -1));
assertEquals("Total size of dist cache files to be generated is wrong.",
sumOfFileSizes,
jobConf.getLong(GenerateDistCacheData.GRIDMIX_DISTCACHE_BYTE_COUNT, -1));
Path filesListFile = new Path(
jobConf.get(GenerateDistCacheData.GRIDMIX_DISTCACHE_FILE_LIST));
FileStatus stat = fs.getFileStatus(filesListFile);
assertEquals("Wrong permissions of dist Cache files list file "
+ filesListFile, new FsPermission((short) 0644), stat.getPermission());
InputSplit split = new FileSplit(filesListFile, 0, stat.getLen(),
(String[]) null);
TaskAttemptContext taskContext = MapReduceTestUtil
.createDummyMapTaskAttemptContext(jobConf);
RecordReader<LongWritable, BytesWritable> reader = new GenerateDistCacheData.GenDCDataFormat()
.createRecordReader(split, taskContext);
MapContext<LongWritable, BytesWritable, NullWritable, BytesWritable> mapContext = new MapContextImpl<LongWritable, BytesWritable, NullWritable, BytesWritable>(
jobConf, taskContext.getTaskAttemptID(), reader, null, null,
MapReduceTestUtil.createDummyReporter(), split);
reader.initialize(split, mapContext);
// start validating setupGenerateDistCacheData
doValidateSetupGenDC(reader, fs, sortedFileSizes);
}
/**
* Validate setupGenerateDistCacheData by validating <li>permissions of the
* distributed cache directory and <li>content of the generated sequence file.
* This includes validation of dist cache file paths and their file sizes.
*/
private void doValidateSetupGenDC(
RecordReader<LongWritable, BytesWritable> reader, FileSystem fs,
long[] sortedFileSizes) throws IOException, InterruptedException {
// Validate permissions of dist cache directory
Path distCacheDir = dce.getDistributedCacheDir();
assertEquals(
"Wrong permissions for distributed cache dir " + distCacheDir,
fs.getFileStatus(distCacheDir).getPermission().getOtherAction()
.and(FsAction.EXECUTE), FsAction.EXECUTE);
// Validate the content of the sequence file generated by
// dce.setupGenerateDistCacheData().
LongWritable key = new LongWritable();
BytesWritable val = new BytesWritable();
for (int i = 0; i < sortedFileSizes.length; i++) {
assertTrue("Number of files written to the sequence file by "
+ "setupGenerateDistCacheData is less than the expected.",
reader.nextKeyValue());
key = reader.getCurrentKey();
val = reader.getCurrentValue();
long fileSize = key.get();
String file = new String(val.getBytes(), 0, val.getLength());
// Dist Cache files should be sorted based on file size.
assertEquals("Dist cache file size is wrong.", sortedFileSizes[i],
fileSize);
// Validate dist cache file path.
// parent dir of dist cache file
Path parent = new Path(file).getParent().makeQualified(fs.getUri(),fs.getWorkingDirectory());
// should exist in dist cache dir
assertTrue("Public dist cache file path is wrong.",
distCacheDir.equals(parent));
}
}
/**
* Test if DistributedCacheEmulator's setup of GenerateDistCacheData is
* working as expected.
*
* @throws IOException
* @throws InterruptedException
*/
@Test (timeout=20000)
public void testSetupGenerateDistCacheData() throws IOException,
InterruptedException {
long[] sortedFileSizes = new long[5];
Configuration jobConf = runSetupGenerateDistCacheData(true, sortedFileSizes);
validateSetupGenDC(jobConf, sortedFileSizes);
// Verify if correct exit code is seen when -generate option is missing and
// distributed cache files are missing in the expected path.
runSetupGenerateDistCacheData(false, sortedFileSizes);
}
/**
* Create DistributedCacheEmulator object and do the initialization by calling
* init() on it with dummy trace. Also configure the pseudo local FS.
*/
private DistributedCacheEmulator createDistributedCacheEmulator(
Configuration conf, Path ioPath, boolean generate) throws IOException {
DistributedCacheEmulator dce = new DistributedCacheEmulator(conf, ioPath);
JobCreator jobCreator = JobCreator.getPolicy(conf, JobCreator.LOADJOB);
jobCreator.setDistCacheEmulator(dce);
dce.init("dummytrace", jobCreator, generate);
return dce;
}
/**
* Test the configuration property for disabling/enabling emulation of
* distributed cache load.
*/
@Test (timeout=2000)
public void testDistCacheEmulationConfigurability() throws IOException {
Configuration jobConf = GridmixTestUtils.mrvl.getConfig();
Path ioPath = new Path("testDistCacheEmulationConfigurability")
.makeQualified(GridmixTestUtils.dfs.getUri(),GridmixTestUtils.dfs.getWorkingDirectory());
FileSystem fs = FileSystem.get(jobConf);
FileSystem.mkdirs(fs, ioPath, new FsPermission((short) 0777));
// default config
dce = createDistributedCacheEmulator(jobConf, ioPath, false);
assertTrue("Default configuration of "
+ DistributedCacheEmulator.GRIDMIX_EMULATE_DISTRIBUTEDCACHE
+ " is wrong.", dce.shouldEmulateDistCacheLoad());
// config property set to false
jobConf.setBoolean(
DistributedCacheEmulator.GRIDMIX_EMULATE_DISTRIBUTEDCACHE, false);
dce = createDistributedCacheEmulator(jobConf, ioPath, false);
assertFalse("Disabling of emulation of distributed cache load by setting "
+ DistributedCacheEmulator.GRIDMIX_EMULATE_DISTRIBUTEDCACHE
+ " to false is not working.", dce.shouldEmulateDistCacheLoad());
}
/**
* test method configureDistCacheFiles
*
*/
@Test (timeout=2000)
public void testDistCacheEmulator() throws Exception {
Configuration conf = new Configuration();
configureDummyDistCacheFiles(conf);
File ws = new File("target" + File.separator + this.getClass().getName());
Path ioPath = new Path(ws.getAbsolutePath());
DistributedCacheEmulator dce = new DistributedCacheEmulator(conf, ioPath);
JobConf jobConf = new JobConf(conf);
jobConf.setUser(UserGroupInformation.getCurrentUser().getShortUserName());
File fin=new File("src"+File.separator+"test"+File.separator+"resources"+File.separator+"data"+File.separator+"wordcount.json");
dce.init(fin.getAbsolutePath(), JobCreator.LOADJOB, true);
dce.configureDistCacheFiles(conf, jobConf);
String[] caches=conf.getStrings(MRJobConfig.CACHE_FILES);
String[] tmpfiles=conf.getStrings("tmpfiles");
// this method should fill caches AND tmpfiles from MRJobConfig.CACHE_FILES property
assertEquals(6, ((caches==null?0:caches.length)+(tmpfiles==null?0:tmpfiles.length)));
}
}

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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.hadoop.mapred.gridmix;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.CustomOutputCommitter;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PositionedReadable;
import org.apache.hadoop.fs.Seekable;
import org.apache.hadoop.io.DataInputBuffer;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.RawComparator;
import org.apache.hadoop.io.WritableUtils;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.JobContext;
import org.apache.hadoop.mapred.RawKeyValueIterator;
import org.apache.hadoop.mapred.gridmix.GridmixKey.Spec;
import org.apache.hadoop.mapred.gridmix.SleepJob.SleepReducer;
import org.apache.hadoop.mapred.gridmix.SleepJob.SleepSplit;
import org.apache.hadoop.mapreduce.Counter;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.MapContext;
import org.apache.hadoop.mapreduce.OutputCommitter;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.RecordWriter;
import org.apache.hadoop.mapreduce.ReduceContext;
import org.apache.hadoop.mapreduce.StatusReporter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.TaskAttemptID;
import org.apache.hadoop.mapreduce.Mapper.Context;
import org.apache.hadoop.mapreduce.counters.GenericCounter;
import org.apache.hadoop.mapreduce.lib.input.CombineFileSplit;
import org.apache.hadoop.mapreduce.lib.map.WrappedMapper;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer;
import org.apache.hadoop.mapreduce.task.MapContextImpl;
import org.apache.hadoop.mapreduce.task.ReduceContextImpl;
import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl;
import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl.DummyReporter;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.tools.rumen.JobStory;
import org.apache.hadoop.tools.rumen.JobStoryProducer;
import org.apache.hadoop.tools.rumen.ResourceUsageMetrics;
import org.apache.hadoop.tools.rumen.ZombieJobProducer;
import org.apache.hadoop.util.Progress;
import org.junit.Assert;
import org.junit.Test;
import static org.mockito.Mockito.*;
import static org.junit.Assert.*;
public class TestGridMixClasses {
private static final Log LOG = LogFactory.getLog(TestGridMixClasses.class);
/*
* simple test LoadSplit (getters,copy, write, read...)
*/
@Test (timeout=1000)
public void testLoadSplit() throws Exception {
LoadSplit test = getLoadSplit();
ByteArrayOutputStream data = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream(data);
test.write(out);
LoadSplit copy = new LoadSplit();
copy.readFields(new DataInputStream(new ByteArrayInputStream(data
.toByteArray())));
// data should be the same
assertEquals(test.getId(), copy.getId());
assertEquals(test.getMapCount(), copy.getMapCount());
assertEquals(test.getInputRecords(), copy.getInputRecords());
assertEquals(test.getOutputBytes()[0], copy.getOutputBytes()[0]);
assertEquals(test.getOutputRecords()[0], copy.getOutputRecords()[0]);
assertEquals(test.getReduceBytes(0), copy.getReduceBytes(0));
assertEquals(test.getReduceRecords(0), copy.getReduceRecords(0));
assertEquals(test.getMapResourceUsageMetrics().getCumulativeCpuUsage(),
copy.getMapResourceUsageMetrics().getCumulativeCpuUsage());
assertEquals(test.getReduceResourceUsageMetrics(0).getCumulativeCpuUsage(),
copy.getReduceResourceUsageMetrics(0).getCumulativeCpuUsage());
}
/*
* simple test GridmixSplit (copy, getters, write, read..)
*/
@Test (timeout=1000)
public void testGridmixSplit() throws Exception {
Path[] files = {new Path("one"), new Path("two")};
long[] start = {1, 2};
long[] lengths = {100, 200};
String[] locations = {"locOne", "loctwo"};
CombineFileSplit cfSplit = new CombineFileSplit(files, start, lengths,
locations);
ResourceUsageMetrics metrics = new ResourceUsageMetrics();
metrics.setCumulativeCpuUsage(200);
double[] reduceBytes = {8.1d, 8.2d};
double[] reduceRecords = {9.1d, 9.2d};
long[] reduceOutputBytes = {101L, 102L};
long[] reduceOutputRecords = {111L, 112L};
GridmixSplit test = new GridmixSplit(cfSplit, 2, 3, 4L, 5L, 6L, 7L,
reduceBytes, reduceRecords, reduceOutputBytes, reduceOutputRecords);
ByteArrayOutputStream data = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream(data);
test.write(out);
GridmixSplit copy = new GridmixSplit();
copy.readFields(new DataInputStream(new ByteArrayInputStream(data
.toByteArray())));
// data should be the same
assertEquals(test.getId(), copy.getId());
assertEquals(test.getMapCount(), copy.getMapCount());
assertEquals(test.getInputRecords(), copy.getInputRecords());
assertEquals(test.getOutputBytes()[0], copy.getOutputBytes()[0]);
assertEquals(test.getOutputRecords()[0], copy.getOutputRecords()[0]);
assertEquals(test.getReduceBytes(0), copy.getReduceBytes(0));
assertEquals(test.getReduceRecords(0), copy.getReduceRecords(0));
}
/*
* test LoadMapper loadMapper should write to writer record for each reduce
*/
@SuppressWarnings({"rawtypes", "unchecked"})
@Test (timeout=10000)
public void testLoadMapper() throws Exception {
Configuration conf = new Configuration();
conf.setInt(JobContext.NUM_REDUCES, 2);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
TaskAttemptID taskId = new TaskAttemptID();
RecordReader<NullWritable, GridmixRecord> reader = new FakeRecordReader();
LoadRecordGkGrWriter writer = new LoadRecordGkGrWriter();
OutputCommitter committer = new CustomOutputCommitter();
StatusReporter reporter = new TaskAttemptContextImpl.DummyReporter();
LoadSplit split = getLoadSplit();
MapContext<NullWritable, GridmixRecord, GridmixKey, GridmixRecord> mapContext = new MapContextImpl<NullWritable, GridmixRecord, GridmixKey, GridmixRecord>(
conf, taskId, reader, writer, committer, reporter, split);
// context
Context ctx = new WrappedMapper<NullWritable, GridmixRecord, GridmixKey, GridmixRecord>()
.getMapContext(mapContext);
reader.initialize(split, ctx);
ctx.getConfiguration().setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
CompressionEmulationUtil.setCompressionEmulationEnabled(
ctx.getConfiguration(), true);
LoadJob.LoadMapper mapper = new LoadJob.LoadMapper();
// setup, map, clean
mapper.run(ctx);
Map<GridmixKey, GridmixRecord> data = writer.getData();
// check result
assertEquals(2, data.size());
}
private LoadSplit getLoadSplit() throws Exception {
Path[] files = {new Path("one"), new Path("two")};
long[] start = {1, 2};
long[] lengths = {100, 200};
String[] locations = {"locOne", "loctwo"};
CombineFileSplit cfSplit = new CombineFileSplit(files, start, lengths,
locations);
ResourceUsageMetrics metrics = new ResourceUsageMetrics();
metrics.setCumulativeCpuUsage(200);
ResourceUsageMetrics[] rMetrics = {metrics};
double[] reduceBytes = {8.1d, 8.2d};
double[] reduceRecords = {9.1d, 9.2d};
long[] reduceOutputBytes = {101L, 102L};
long[] reduceOutputRecords = {111L, 112L};
return new LoadSplit(cfSplit, 2, 1, 4L, 5L, 6L, 7L,
reduceBytes, reduceRecords, reduceOutputBytes, reduceOutputRecords,
metrics, rMetrics);
}
private class FakeRecordLLReader extends
RecordReader<LongWritable, LongWritable> {
int counter = 10;
@Override
public void initialize(InputSplit split, TaskAttemptContext context)
throws IOException, InterruptedException {
}
@Override
public boolean nextKeyValue() throws IOException, InterruptedException {
counter--;
return counter > 0;
}
@Override
public LongWritable getCurrentKey() throws IOException,
InterruptedException {
return new LongWritable(counter);
}
@Override
public LongWritable getCurrentValue() throws IOException,
InterruptedException {
return new LongWritable(counter * 10);
}
@Override
public float getProgress() throws IOException, InterruptedException {
return counter / 10.0f;
}
@Override
public void close() throws IOException {
// restore data
counter = 10;
}
}
private class FakeRecordReader extends
RecordReader<NullWritable, GridmixRecord> {
int counter = 10;
@Override
public void initialize(InputSplit split, TaskAttemptContext context)
throws IOException, InterruptedException {
}
@Override
public boolean nextKeyValue() throws IOException, InterruptedException {
counter--;
return counter > 0;
}
@Override
public NullWritable getCurrentKey() throws IOException,
InterruptedException {
return NullWritable.get();
}
@Override
public GridmixRecord getCurrentValue() throws IOException,
InterruptedException {
return new GridmixRecord(100, 100L);
}
@Override
public float getProgress() throws IOException, InterruptedException {
return counter / 10.0f;
}
@Override
public void close() throws IOException {
// restore data
counter = 10;
}
}
private class LoadRecordGkGrWriter extends
RecordWriter<GridmixKey, GridmixRecord> {
private Map<GridmixKey, GridmixRecord> data = new HashMap<GridmixKey, GridmixRecord>();
@Override
public void write(GridmixKey key, GridmixRecord value) throws IOException,
InterruptedException {
data.put(key, value);
}
@Override
public void close(TaskAttemptContext context) throws IOException,
InterruptedException {
}
public Map<GridmixKey, GridmixRecord> getData() {
return data;
}
}
private class LoadRecordGkNullWriter extends
RecordWriter<GridmixKey, NullWritable> {
private Map<GridmixKey, NullWritable> data = new HashMap<GridmixKey, NullWritable>();
@Override
public void write(GridmixKey key, NullWritable value) throws IOException,
InterruptedException {
data.put(key, value);
}
@Override
public void close(TaskAttemptContext context) throws IOException,
InterruptedException {
}
public Map<GridmixKey, NullWritable> getData() {
return data;
}
}
private class LoadRecordWriter extends
RecordWriter<NullWritable, GridmixRecord> {
private Map<NullWritable, GridmixRecord> data = new HashMap<NullWritable, GridmixRecord>();
@Override
public void write(NullWritable key, GridmixRecord value)
throws IOException, InterruptedException {
data.put(key, value);
}
@Override
public void close(TaskAttemptContext context) throws IOException,
InterruptedException {
}
public Map<NullWritable, GridmixRecord> getData() {
return data;
}
}
/*
* test LoadSortComparator
*/
@Test (timeout=1000)
public void testLoadJobLoadSortComparator() throws Exception {
LoadJob.LoadSortComparator test = new LoadJob.LoadSortComparator();
ByteArrayOutputStream data = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(data);
WritableUtils.writeVInt(dos, 2);
WritableUtils.writeVInt(dos, 1);
WritableUtils.writeVInt(dos, 4);
WritableUtils.writeVInt(dos, 7);
WritableUtils.writeVInt(dos, 4);
byte[] b1 = data.toByteArray();
byte[] b2 = data.toByteArray();
// the same data should be equals
assertEquals(0, test.compare(b1, 0, 1, b2, 0, 1));
b2[2] = 5;
// compare like GridMixKey first byte: shift count -1=4-5
assertEquals(-1, test.compare(b1, 0, 1, b2, 0, 1));
b2[2] = 2;
// compare like GridMixKey first byte: shift count 2=4-2
assertEquals(2, test.compare(b1, 0, 1, b2, 0, 1));
// compare arrays by first byte witch offset (2-1) because 4==4
b2[2] = 4;
assertEquals(1, test.compare(b1, 0, 1, b2, 1, 1));
}
/*
* test SpecGroupingComparator
*/
@Test (timeout=1000)
public void testGridmixJobSpecGroupingComparator() throws Exception {
GridmixJob.SpecGroupingComparator test = new GridmixJob.SpecGroupingComparator();
ByteArrayOutputStream data = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(data);
WritableUtils.writeVInt(dos, 2);
WritableUtils.writeVInt(dos, 1);
// 0: REDUCE SPEC
WritableUtils.writeVInt(dos, 0);
WritableUtils.writeVInt(dos, 7);
WritableUtils.writeVInt(dos, 4);
byte[] b1 = data.toByteArray();
byte[] b2 = data.toByteArray();
// the same object should be equals
assertEquals(0, test.compare(b1, 0, 1, b2, 0, 1));
b2[2] = 1;
// for Reduce
assertEquals(-1, test.compare(b1, 0, 1, b2, 0, 1));
// by Reduce spec
b2[2] = 1; // 1: DATA SPEC
assertEquals(-1, test.compare(b1, 0, 1, b2, 0, 1));
// compare GridmixKey the same objects should be equals
assertEquals(0, test.compare(new GridmixKey(GridmixKey.DATA, 100, 2),
new GridmixKey(GridmixKey.DATA, 100, 2)));
// REDUSE SPEC
assertEquals(-1, test.compare(
new GridmixKey(GridmixKey.REDUCE_SPEC, 100, 2), new GridmixKey(
GridmixKey.DATA, 100, 2)));
assertEquals(1, test.compare(new GridmixKey(GridmixKey.DATA, 100, 2),
new GridmixKey(GridmixKey.REDUCE_SPEC, 100, 2)));
// only DATA
assertEquals(2, test.compare(new GridmixKey(GridmixKey.DATA, 102, 2),
new GridmixKey(GridmixKey.DATA, 100, 2)));
}
/*
* test CompareGridmixJob only equals and compare
*/
@Test (timeout=10000)
public void testCompareGridmixJob() throws Exception {
Configuration conf = new Configuration();
Path outRoot = new Path("target");
JobStory jobDesc = mock(JobStory.class);
when(jobDesc.getName()).thenReturn("JobName");
when(jobDesc.getJobConf()).thenReturn(new JobConf(conf));
UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
GridmixJob j1 = new LoadJob(conf, 1000L, jobDesc, outRoot, ugi, 0);
GridmixJob j2 = new LoadJob(conf, 1000L, jobDesc, outRoot, ugi, 0);
GridmixJob j3 = new LoadJob(conf, 1000L, jobDesc, outRoot, ugi, 1);
GridmixJob j4 = new LoadJob(conf, 1000L, jobDesc, outRoot, ugi, 1);
assertTrue(j1.equals(j2));
assertEquals(0, j1.compareTo(j2));
// Only one parameter matters
assertFalse(j1.equals(j3));
// compare id and submissionMillis
assertEquals(-1, j1.compareTo(j3));
assertEquals(-1, j1.compareTo(j4));
}
/*
* test ReadRecordFactory. should read all data from inputstream
*/
@Test (timeout=1000)
public void testReadRecordFactory() throws Exception {
// RecordFactory factory, InputStream src, Configuration conf
RecordFactory rf = new FakeRecordFactory();
FakeInputStream input = new FakeInputStream();
ReadRecordFactory test = new ReadRecordFactory(rf, input,
new Configuration());
GridmixKey key = new GridmixKey(GridmixKey.DATA, 100, 2);
GridmixRecord val = new GridmixRecord(200, 2);
while (test.next(key, val)) {
}
// should be read 10* (GridmixKey.size +GridmixRecord.value)
assertEquals(3000, input.getCounter());
// should be -1 because all data readed;
assertEquals(-1, rf.getProgress(), 0.01);
test.close();
}
private class FakeRecordFactory extends RecordFactory {
private int counter = 10;
@Override
public void close() throws IOException {
}
@Override
public boolean next(GridmixKey key, GridmixRecord val) throws IOException {
counter--;
return counter >= 0;
}
@Override
public float getProgress() throws IOException {
return counter;
}
}
private class FakeInputStream extends InputStream implements Seekable,
PositionedReadable {
private long counter;
@Override
public int read() throws IOException {
return 0;
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
int realLen = len - off;
counter += realLen;
for (int i = 0; i < b.length; i++) {
b[i] = 0;
}
return realLen;
}
public long getCounter() {
return counter;
}
@Override
public void seek(long pos) throws IOException {
}
@Override
public long getPos() throws IOException {
return counter;
}
@Override
public boolean seekToNewSource(long targetPos) throws IOException {
return false;
}
@Override
public int read(long position, byte[] buffer, int offset, int length)
throws IOException {
return 0;
}
@Override
public void readFully(long position, byte[] buffer, int offset, int length)
throws IOException {
}
@Override
public void readFully(long position, byte[] buffer) throws IOException {
}
}
private class FakeFSDataInputStream extends FSDataInputStream {
public FakeFSDataInputStream(InputStream in) throws IOException {
super(in);
}
}
/*
* test LoadRecordReader. It class reads data from some files.
*/
@Test (timeout=1000)
public void testLoadJobLoadRecordReader() throws Exception {
LoadJob.LoadRecordReader test = new LoadJob.LoadRecordReader();
Configuration conf = new Configuration();
FileSystem fs1 = mock(FileSystem.class);
when(fs1.open((Path) anyObject())).thenReturn(
new FakeFSDataInputStream(new FakeInputStream()));
Path p1 = mock(Path.class);
when(p1.getFileSystem((JobConf) anyObject())).thenReturn(fs1);
FileSystem fs2 = mock(FileSystem.class);
when(fs2.open((Path) anyObject())).thenReturn(
new FakeFSDataInputStream(new FakeInputStream()));
Path p2 = mock(Path.class);
when(p2.getFileSystem((JobConf) anyObject())).thenReturn(fs2);
Path[] paths = {p1, p2};
long[] start = {0, 0};
long[] lengths = {1000, 1000};
String[] locations = {"temp1", "temp2"};
CombineFileSplit cfsplit = new CombineFileSplit(paths, start, lengths,
locations);
double[] reduceBytes = {100, 100};
double[] reduceRecords = {2, 2};
long[] reduceOutputBytes = {500, 500};
long[] reduceOutputRecords = {2, 2};
ResourceUsageMetrics metrics = new ResourceUsageMetrics();
ResourceUsageMetrics[] rMetrics = {new ResourceUsageMetrics(),
new ResourceUsageMetrics()};
LoadSplit input = new LoadSplit(cfsplit, 2, 3, 1500L, 2L, 3000L, 2L,
reduceBytes, reduceRecords, reduceOutputBytes, reduceOutputRecords,
metrics, rMetrics);
TaskAttemptID taskId = new TaskAttemptID();
TaskAttemptContext ctx = new TaskAttemptContextImpl(conf, taskId);
test.initialize(input, ctx);
GridmixRecord gr = test.getCurrentValue();
int counter = 0;
while (test.nextKeyValue()) {
gr = test.getCurrentValue();
if (counter == 0) {
// read first file
assertEquals(0.5, test.getProgress(), 0.001);
} else if (counter == 1) {
// read second file
assertEquals(1.0, test.getProgress(), 0.001);
}
//
assertEquals(1000, gr.getSize());
counter++;
}
assertEquals(1000, gr.getSize());
// Two files have been read
assertEquals(2, counter);
test.close();
}
/*
* test LoadReducer
*/
@Test (timeout=1000)
public void testLoadJobLoadReducer() throws Exception {
LoadJob.LoadReducer test = new LoadJob.LoadReducer();
Configuration conf = new Configuration();
conf.setInt(JobContext.NUM_REDUCES, 2);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(FileOutputFormat.COMPRESS, true);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
TaskAttemptID taskid = new TaskAttemptID();
RawKeyValueIterator input = new FakeRawKeyValueIterator();
Counter counter = new GenericCounter();
Counter inputValueCounter = new GenericCounter();
LoadRecordWriter output = new LoadRecordWriter();
OutputCommitter committer = new CustomOutputCommitter();
StatusReporter reporter = new DummyReporter();
RawComparator<GridmixKey> comparator = new FakeRawComparator();
ReduceContext<GridmixKey, GridmixRecord, NullWritable, GridmixRecord> reduceContext = new ReduceContextImpl<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>(
conf, taskid, input, counter, inputValueCounter, output, committer,
reporter, comparator, GridmixKey.class, GridmixRecord.class);
// read for previous data
reduceContext.nextKeyValue();
org.apache.hadoop.mapreduce.Reducer<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>.Context context = new WrappedReducer<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>()
.getReducerContext(reduceContext);
// test.setup(context);
test.run(context);
// have been readed 9 records (-1 for previous)
assertEquals(9, counter.getValue());
assertEquals(10, inputValueCounter.getValue());
assertEquals(1, output.getData().size());
GridmixRecord record = output.getData().values().iterator()
.next();
assertEquals(1593, record.getSize());
}
protected class FakeRawKeyValueIterator implements RawKeyValueIterator {
int counter = 10;
@Override
public DataInputBuffer getKey() throws IOException {
ByteArrayOutputStream dt = new ByteArrayOutputStream();
GridmixKey key = new GridmixKey(GridmixKey.REDUCE_SPEC, 10 * counter, 1L);
Spec spec = new Spec();
spec.rec_in = counter;
spec.rec_out = counter;
spec.bytes_out = counter * 100;
key.setSpec(spec);
key.write(new DataOutputStream(dt));
DataInputBuffer result = new DataInputBuffer();
byte[] b = dt.toByteArray();
result.reset(b, 0, b.length);
return result;
}
@Override
public DataInputBuffer getValue() throws IOException {
ByteArrayOutputStream dt = new ByteArrayOutputStream();
GridmixRecord key = new GridmixRecord(100, 1);
key.write(new DataOutputStream(dt));
DataInputBuffer result = new DataInputBuffer();
byte[] b = dt.toByteArray();
result.reset(b, 0, b.length);
return result;
}
@Override
public boolean next() throws IOException {
counter--;
return counter >= 0;
}
@Override
public void close() throws IOException {
}
@Override
public Progress getProgress() {
return null;
}
}
private class FakeRawComparator implements RawComparator<GridmixKey> {
@Override
public int compare(GridmixKey o1, GridmixKey o2) {
return o1.compareTo(o2);
}
@Override
public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
if ((l1 - s1) != (l2 - s2)) {
return (l1 - s1) - (l2 - s2);
}
int len = l1 - s1;
for (int i = 0; i < len; i++) {
if (b1[s1 + i] != b2[s2 + i]) {
return b1[s1 + i] - b2[s2 + i];
}
}
return 0;
}
}
/*
* test SerialJobFactory
*/
@Test (timeout=40000)
public void testSerialReaderThread() throws Exception {
Configuration conf = new Configuration();
File fin = new File("src" + File.separator + "test" + File.separator
+ "resources" + File.separator + "data" + File.separator
+ "wordcount2.json");
// read couple jobs from wordcount2.json
JobStoryProducer jobProducer = new ZombieJobProducer(new Path(
fin.getAbsolutePath()), null, conf);
CountDownLatch startFlag = new CountDownLatch(1);
UserResolver resolver = new SubmitterUserResolver();
FakeJobSubmitter submitter = new FakeJobSubmitter();
File ws = new File("target" + File.separator + this.getClass().getName());
if (!ws.exists()) {
Assert.assertTrue(ws.mkdirs());
}
SerialJobFactory jobFactory = new SerialJobFactory(submitter, jobProducer,
new Path(ws.getAbsolutePath()), conf, startFlag, resolver);
Path ioPath = new Path(ws.getAbsolutePath());
jobFactory.setDistCacheEmulator(new DistributedCacheEmulator(conf, ioPath));
Thread test = jobFactory.createReaderThread();
test.start();
Thread.sleep(1000);
// SerialReaderThread waits startFlag
assertEquals(0, submitter.getJobs().size());
// start!
startFlag.countDown();
while (test.isAlive()) {
Thread.sleep(1000);
jobFactory.update(null);
}
// submitter was called twice
assertEquals(2, submitter.getJobs().size());
}
private class FakeJobSubmitter extends JobSubmitter {
// counter for submitted jobs
private List<GridmixJob> jobs = new ArrayList<GridmixJob>();
public FakeJobSubmitter() {
super(null, 1, 1, null, null);
}
@Override
public void add(GridmixJob job) throws InterruptedException {
jobs.add(job);
}
public List<GridmixJob> getJobs() {
return jobs;
}
}
/*
* test SleepMapper
*/
@SuppressWarnings({"unchecked", "rawtypes"})
@Test (timeout=10000)
public void testSleepMapper() throws Exception {
SleepJob.SleepMapper test = new SleepJob.SleepMapper();
Configuration conf = new Configuration();
conf.setInt(JobContext.NUM_REDUCES, 2);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
TaskAttemptID taskId = new TaskAttemptID();
FakeRecordLLReader reader = new FakeRecordLLReader();
LoadRecordGkNullWriter writer = new LoadRecordGkNullWriter();
OutputCommitter committer = new CustomOutputCommitter();
StatusReporter reporter = new TaskAttemptContextImpl.DummyReporter();
SleepSplit split = getSleepSplit();
MapContext<LongWritable, LongWritable, GridmixKey, NullWritable> mapcontext = new MapContextImpl<LongWritable, LongWritable, GridmixKey, NullWritable>(
conf, taskId, reader, writer, committer, reporter, split);
Context context = new WrappedMapper<LongWritable, LongWritable, GridmixKey, NullWritable>()
.getMapContext(mapcontext);
long start = System.currentTimeMillis();
LOG.info("start:" + start);
LongWritable key = new LongWritable(start + 2000);
LongWritable value = new LongWritable(start + 2000);
// should slip 2 sec
test.map(key, value, context);
LOG.info("finish:" + System.currentTimeMillis());
assertTrue(System.currentTimeMillis() >= (start + 2000));
test.cleanup(context);
assertEquals(1, writer.getData().size());
}
private SleepSplit getSleepSplit() throws Exception {
String[] locations = {"locOne", "loctwo"};
long[] reduceDurations = {101L, 102L};
return new SleepSplit(0, 2000L, reduceDurations, 2, locations);
}
/*
* test SleepReducer
*/
@Test (timeout=1000)
public void testSleepReducer() throws Exception {
Configuration conf = new Configuration();
conf.setInt(JobContext.NUM_REDUCES, 2);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(FileOutputFormat.COMPRESS, true);
CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
TaskAttemptID taskId = new TaskAttemptID();
RawKeyValueIterator input = new FakeRawKeyValueReducerIterator();
Counter counter = new GenericCounter();
Counter inputValueCounter = new GenericCounter();
RecordWriter<NullWritable, NullWritable> output = new LoadRecordReduceWriter();
OutputCommitter committer = new CustomOutputCommitter();
StatusReporter reporter = new DummyReporter();
RawComparator<GridmixKey> comparator = new FakeRawComparator();
ReduceContext<GridmixKey, NullWritable, NullWritable, NullWritable> reducecontext = new ReduceContextImpl<GridmixKey, NullWritable, NullWritable, NullWritable>(
conf, taskId, input, counter, inputValueCounter, output, committer,
reporter, comparator, GridmixKey.class, NullWritable.class);
org.apache.hadoop.mapreduce.Reducer<GridmixKey, NullWritable, NullWritable, NullWritable>.Context context = new WrappedReducer<GridmixKey, NullWritable, NullWritable, NullWritable>()
.getReducerContext(reducecontext);
SleepReducer test = new SleepReducer();
long start = System.currentTimeMillis();
test.setup(context);
long sleeper = context.getCurrentKey().getReduceOutputBytes();
// status has been changed
assertEquals("Sleeping... " + sleeper + " ms left", context.getStatus());
// should sleep 0.9 sec
assertTrue(System.currentTimeMillis() >= (start + sleeper));
test.cleanup(context);
// status has been changed again
assertEquals("Slept for " + sleeper, context.getStatus());
}
private class LoadRecordReduceWriter extends
RecordWriter<NullWritable, NullWritable> {
@Override
public void write(NullWritable key, NullWritable value) throws IOException,
InterruptedException {
}
@Override
public void close(TaskAttemptContext context) throws IOException,
InterruptedException {
}
}
protected class FakeRawKeyValueReducerIterator implements RawKeyValueIterator {
int counter = 10;
@Override
public DataInputBuffer getKey() throws IOException {
ByteArrayOutputStream dt = new ByteArrayOutputStream();
GridmixKey key = new GridmixKey(GridmixKey.REDUCE_SPEC, 10 * counter, 1L);
Spec spec = new Spec();
spec.rec_in = counter;
spec.rec_out = counter;
spec.bytes_out = counter * 100;
key.setSpec(spec);
key.write(new DataOutputStream(dt));
DataInputBuffer result = new DataInputBuffer();
byte[] b = dt.toByteArray();
result.reset(b, 0, b.length);
return result;
}
@Override
public DataInputBuffer getValue() throws IOException {
ByteArrayOutputStream dt = new ByteArrayOutputStream();
NullWritable key = NullWritable.get();
key.write(new DataOutputStream(dt));
DataInputBuffer result = new DataInputBuffer();
byte[] b = dt.toByteArray();
result.reset(b, 0, b.length);
return result;
}
@Override
public boolean next() throws IOException {
counter--;
return counter >= 0;
}
@Override
public void close() throws IOException {
}
@Override
public Progress getProgress() {
return null;
}
}
}

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@ -0,0 +1,202 @@
/**
* 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.gridmix;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.tools.rumen.JobStory;
import org.apache.hadoop.tools.rumen.JobStoryProducer;
import org.apache.hadoop.util.ExitUtil;
import org.apache.log4j.Level;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.zip.GZIPInputStream;
import static org.junit.Assert.*;
public class TestGridmixSubmission extends CommonJobTest {
private static File inSpace = new File("src" + File.separator + "test"
+ File.separator + "resources" + File.separator + "data");
static {
((Log4JLogger) LogFactory.getLog("org.apache.hadoop.mapred.gridmix"))
.getLogger().setLevel(Level.DEBUG);
}
@BeforeClass
public static void init() throws IOException {
GridmixTestUtils.initCluster(TestGridmixSubmission.class);
System.setProperty("src.test.data", inSpace.getAbsolutePath());
}
@AfterClass
public static void shutDown() throws IOException {
GridmixTestUtils.shutdownCluster();
}
/**
* Verifies that the given {@code JobStory} corresponds to the checked-in
* WordCount {@code JobStory}. The verification is effected via JUnit
* assertions.
*
* @param js the candidate JobStory.
*/
private void verifyWordCountJobStory(JobStory js) {
assertNotNull("Null JobStory", js);
String expectedJobStory = "WordCount:johndoe:default:1285322645148:3:1";
String actualJobStory = js.getName() + ":" + js.getUser() + ":"
+ js.getQueueName() + ":" + js.getSubmissionTime() + ":"
+ js.getNumberMaps() + ":" + js.getNumberReduces();
assertEquals("Unexpected JobStory", expectedJobStory, actualJobStory);
}
/**
* Expands a file compressed using {@code gzip}.
*
* @param fs the {@code FileSystem} corresponding to the given file.
* @param in the path to the compressed file.
* @param out the path to the uncompressed output.
* @throws Exception if there was an error during the operation.
*/
private void expandGzippedTrace(FileSystem fs, Path in, Path out)
throws Exception {
byte[] buff = new byte[4096];
GZIPInputStream gis = new GZIPInputStream(fs.open(in));
FSDataOutputStream fsdOs = fs.create(out);
int numRead;
while ((numRead = gis.read(buff, 0, buff.length)) != -1) {
fsdOs.write(buff, 0, numRead);
}
gis.close();
fsdOs.close();
}
/**
* Tests the reading of traces in GridMix3. These traces are generated by
* Rumen and are in the JSON format. The traces can optionally be compressed
* and uncompressed traces can also be passed to GridMix3 via its standard
* input stream. The testing is effected via JUnit assertions.
*
* @throws Exception if there was an error.
*/
@Test (timeout=20000)
public void testTraceReader() throws Exception {
Configuration conf = new Configuration();
FileSystem lfs = FileSystem.getLocal(conf);
Path rootInputDir = new Path(System.getProperty("src.test.data"));
rootInputDir = rootInputDir.makeQualified(lfs.getUri(),
lfs.getWorkingDirectory());
Path rootTempDir = new Path(System.getProperty("test.build.data",
System.getProperty("java.io.tmpdir")), "testTraceReader");
rootTempDir = rootTempDir.makeQualified(lfs.getUri(),
lfs.getWorkingDirectory());
Path inputFile = new Path(rootInputDir, "wordcount.json.gz");
Path tempFile = new Path(rootTempDir, "gridmix3-wc.json");
InputStream origStdIn = System.in;
InputStream tmpIs = null;
try {
DebugGridmix dgm = new DebugGridmix();
JobStoryProducer jsp = dgm.createJobStoryProducer(inputFile.toString(),
conf);
LOG.info("Verifying JobStory from compressed trace...");
verifyWordCountJobStory(jsp.getNextJob());
expandGzippedTrace(lfs, inputFile, tempFile);
jsp = dgm.createJobStoryProducer(tempFile.toString(), conf);
LOG.info("Verifying JobStory from uncompressed trace...");
verifyWordCountJobStory(jsp.getNextJob());
tmpIs = lfs.open(tempFile);
System.setIn(tmpIs);
LOG.info("Verifying JobStory from trace in standard input...");
jsp = dgm.createJobStoryProducer("-", conf);
verifyWordCountJobStory(jsp.getNextJob());
} finally {
System.setIn(origStdIn);
if (tmpIs != null) {
tmpIs.close();
}
lfs.delete(rootTempDir, true);
}
}
@Test (timeout=500000)
public void testReplaySubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.REPLAY;
LOG.info(" Replay started at " + System.currentTimeMillis());
doSubmission(null, false);
LOG.info(" Replay ended at " + System.currentTimeMillis());
}
@Test (timeout=500000)
public void testStressSubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.STRESS;
LOG.info(" Stress started at " + System.currentTimeMillis());
doSubmission(null, false);
LOG.info(" Stress ended at " + System.currentTimeMillis());
}
// test empty request should be hint message
@Test (timeout=100000)
public void testMain() throws Exception {
SecurityManager securityManager = System.getSecurityManager();
final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
final PrintStream out = new PrintStream(bytes);
final PrintStream oldOut = System.out;
System.setErr(out);
ExitUtil.disableSystemExit();
try {
String[] argv = new String[0];
DebugGridmix.main(argv);
} catch (ExitUtil.ExitException e) {
assertEquals("ExitException", e.getMessage());
ExitUtil.resetFirstExitException();
} finally {
System.setErr(oldOut);
System.setSecurityManager(securityManager);
}
String print = bytes.toString();
// should be printed tip in std error stream
assertTrue(print
.contains("Usage: gridmix [-generate <MiB>] [-users URI] [-Dname=value ...] <iopath> <trace>"));
assertTrue(print.contains("e.g. gridmix -generate 100m foo -"));
}
}

17
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/TestGridmixSummary.java
View File

@ -45,7 +45,7 @@ public class TestGridmixSummary {
/**
* Test {@link DataStatistics}.
*/
@Test
@Test (timeout=20000)
public void testDataStatistics() throws Exception {
// test data-statistics getters with compression enabled
DataStatistics stats = new DataStatistics(10, 2, true);
@ -133,7 +133,7 @@ public class TestGridmixSummary {
/**
* A fake {@link JobFactory}.
*/
@SuppressWarnings("unchecked")
@SuppressWarnings("rawtypes")
private static class FakeJobFactory extends JobFactory {
/**
* A fake {@link JobStoryProducer} for {@link FakeJobFactory}.
@ -166,8 +166,8 @@ public class TestGridmixSummary {
/**
* Test {@link ExecutionSummarizer}.
*/
@Test
@SuppressWarnings("unchecked")
@Test (timeout=20000)
@SuppressWarnings({ "unchecked", "rawtypes" })
public void testExecutionSummarizer() throws IOException {
Configuration conf = new Configuration();
@ -359,8 +359,7 @@ public class TestGridmixSummary {
/**
* Test {@link ClusterSummarizer}.
*/
@Test
@SuppressWarnings("deprecation")
@Test (timeout=20000)
public void testClusterSummarizer() throws IOException {
ClusterSummarizer cs = new ClusterSummarizer();
Configuration conf = new Configuration();
@ -374,13 +373,13 @@ public class TestGridmixSummary {
assertEquals("JT name mismatch", jt, cs.getJobTrackerInfo());
assertEquals("NN name mismatch", nn, cs.getNamenodeInfo());
ClusterStats cstats = ClusterStats.getClusterStats();
ClusterStats cStats = ClusterStats.getClusterStats();
conf.set(JTConfig.JT_IPC_ADDRESS, "local");
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "local");
JobClient jc = new JobClient(conf);
cstats.setClusterMetric(jc.getClusterStatus());
cStats.setClusterMetric(jc.getClusterStatus());
cs.update(cstats);
cs.update(cStats);
// test
assertEquals("Cluster summary test failed!", 1, cs.getMaxMapTasks());

81
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/TestLoadJob.java Normal file
View File

@ -0,0 +1,81 @@
/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.gridmix;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.log4j.Level;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
/*
Test LoadJob Gridmix sends data to job and after that
*/
public class TestLoadJob extends CommonJobTest {
public static final Log LOG = LogFactory.getLog(Gridmix.class);
static {
((Log4JLogger) LogFactory.getLog("org.apache.hadoop.mapred.gridmix"))
.getLogger().setLevel(Level.DEBUG);
((Log4JLogger) LogFactory.getLog(StressJobFactory.class)).getLogger()
.setLevel(Level.DEBUG);
}
@BeforeClass
public static void init() throws IOException {
GridmixTestUtils.initCluster(TestLoadJob.class);
}
@AfterClass
public static void shutDown() throws IOException {
GridmixTestUtils.shutdownCluster();
}
/*
* test serial policy with LoadJob. Task should execute without exceptions
*/
@Test (timeout=500000)
public void testSerialSubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.SERIAL;
LOG.info("Serial started at " + System.currentTimeMillis());
doSubmission(JobCreator.LOADJOB.name(), false);
LOG.info("Serial ended at " + System.currentTimeMillis());
}
/*
* test reply policy with LoadJob
*/
@Test (timeout=500000)
public void testReplaySubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.REPLAY;
LOG.info(" Replay started at " + System.currentTimeMillis());
doSubmission(JobCreator.LOADJOB.name(), false);
LOG.info(" Replay ended at " + System.currentTimeMillis());
}
}

142
hadoop-tools/hadoop-gridmix/src/test/java/org/apache/hadoop/mapred/gridmix/TestSleepJob.java Normal file
View File

@ -0,0 +1,142 @@
/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.gridmix;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.tools.rumen.JobStory;
import org.apache.log4j.Level;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
import java.util.List;
import static org.junit.Assert.*;
public class TestSleepJob extends CommonJobTest {
public static final Log LOG = LogFactory.getLog(Gridmix.class);
static {
((Log4JLogger) LogFactory.getLog("org.apache.hadoop.mapred.gridmix"))
.getLogger().setLevel(Level.DEBUG);
}
static GridmixJobSubmissionPolicy policy = GridmixJobSubmissionPolicy.REPLAY;
@BeforeClass
public static void init() throws IOException {
GridmixTestUtils.initCluster(TestSleepJob.class);
}
@AfterClass
public static void shutDown() throws IOException {
GridmixTestUtils.shutdownCluster();
}
/*
* test RandomLocation
*/
@Test (timeout=600000)
public void testRandomLocation() throws Exception {
UserGroupInformation ugi = UserGroupInformation.getLoginUser();
testRandomLocation(1, 10, ugi);
testRandomLocation(2, 10, ugi);
}
@Test (timeout=600000)
public void testMapTasksOnlySleepJobs() throws Exception {
Configuration configuration = GridmixTestUtils.mrvl.getConfig();
DebugJobProducer jobProducer = new DebugJobProducer(5, configuration);
configuration.setBoolean(SleepJob.SLEEPJOB_MAPTASK_ONLY, true);
UserGroupInformation ugi = UserGroupInformation.getLoginUser();
JobStory story;
int seq = 1;
while ((story = jobProducer.getNextJob()) != null) {
GridmixJob gridmixJob = JobCreator.SLEEPJOB.createGridmixJob(configuration, 0,
story, new Path("ignored"), ugi, seq++);
gridmixJob.buildSplits(null);
Job job = gridmixJob.call();
assertEquals(0, job.getNumReduceTasks());
}
jobProducer.close();
assertEquals(6, seq);
}
// test Serial submit
@Test (timeout=600000)
public void testSerialSubmit() throws Exception {
// set policy
policy = GridmixJobSubmissionPolicy.SERIAL;
LOG.info("Serial started at " + System.currentTimeMillis());
doSubmission(JobCreator.SLEEPJOB.name(), false);
LOG.info("Serial ended at " + System.currentTimeMillis());
}
@Test (timeout=600000)
public void testReplaySubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.REPLAY;
LOG.info(" Replay started at " + System.currentTimeMillis());
doSubmission(JobCreator.SLEEPJOB.name(), false);
LOG.info(" Replay ended at " + System.currentTimeMillis());
}
@Test (timeout=600000)
public void testStressSubmit() throws Exception {
policy = GridmixJobSubmissionPolicy.STRESS;
LOG.info(" Replay started at " + System.currentTimeMillis());
doSubmission(JobCreator.SLEEPJOB.name(), false);
LOG.info(" Replay ended at " + System.currentTimeMillis());
}
private void testRandomLocation(int locations, int njobs,
UserGroupInformation ugi) throws Exception {
Configuration configuration = new Configuration();
DebugJobProducer jobProducer = new DebugJobProducer(njobs, configuration);
Configuration jconf = GridmixTestUtils.mrvl.getConfig();
jconf.setInt(JobCreator.SLEEPJOB_RANDOM_LOCATIONS, locations);
JobStory story;
int seq = 1;
while ((story = jobProducer.getNextJob()) != null) {
GridmixJob gridmixJob = JobCreator.SLEEPJOB.createGridmixJob(jconf, 0,
story, new Path("ignored"), ugi, seq++);
gridmixJob.buildSplits(null);
List<InputSplit> splits = new SleepJob.SleepInputFormat()
.getSplits(gridmixJob.getJob());
for (InputSplit split : splits) {
assertEquals(locations, split.getLocations().length);
}
}
jobProducer.close();
}
}

414
hadoop-tools/hadoop-gridmix/src/test/resources/data/wordcount.json Normal file
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"queue" : "default",
"clusterMapMB" : -1,
"clusterReduceMB" : -1,
"jobMapMB" : 1024,
"jobReduceMB" : 1024
}