/// <exception cref="System.Exception"/>
public static void Launch()
{
Configuration conf = new Configuration();
FileSystem fs = FileSystem.Get(conf);
int numOfInputLines = 10;
Path outDir = new Path(testDir, "output_for_field_selection_test");
Path inDir = new Path(testDir, "input_for_field_selection_test");
StringBuilder inputData = new StringBuilder();
StringBuilder expectedOutput = new StringBuilder();
ConstructInputOutputData(inputData, expectedOutput, numOfInputLines);
conf.Set(FieldSelectionHelper.DataFieldSeperator, "-");
conf.Set(FieldSelectionHelper.MapOutputKeyValueSpec, "6,5,1-3:0-");
conf.Set(FieldSelectionHelper.ReduceOutputKeyValueSpec, ":4,3,2,1,0,0-");
Job job = MapReduceTestUtil.CreateJob(conf, inDir, outDir, 1, 1, inputData.ToString
());
job.SetMapperClass(typeof(FieldSelectionMapper));
job.SetReducerClass(typeof(FieldSelectionReducer));
job.SetOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetNumReduceTasks(1);
job.WaitForCompletion(true);
NUnit.Framework.Assert.IsTrue("Job Failed!", job.IsSuccessful());
//
// Finally, we compare the reconstructed answer key with the
// original one. Remember, we need to ignore zero-count items
// in the original key.
//
string outdata = MapReduceTestUtil.ReadOutput(outDir, conf);
NUnit.Framework.Assert.AreEqual("Outputs doesnt match.", expectedOutput.ToString(
), outdata);
fs.Delete(outDir, true);
}
/// <exception cref="System.Exception"/>
public static void Launch()
{
JobConf conf = new JobConf(typeof(Org.Apache.Hadoop.Mapred.TestFieldSelection));
FileSystem fs = FileSystem.Get(conf);
int numOfInputLines = 10;
Path OutputDir = new Path("build/test/output_for_field_selection_test");
Path InputDir = new Path("build/test/input_for_field_selection_test");
string inputFile = "input.txt";
fs.Delete(InputDir, true);
fs.Mkdirs(InputDir);
fs.Delete(OutputDir, true);
StringBuilder inputData = new StringBuilder();
StringBuilder expectedOutput = new StringBuilder();
TestMRFieldSelection.ConstructInputOutputData(inputData, expectedOutput, numOfInputLines
);
FSDataOutputStream fileOut = fs.Create(new Path(InputDir, inputFile));
fileOut.Write(Sharpen.Runtime.GetBytesForString(inputData.ToString(), "utf-8"));
fileOut.Close();
System.Console.Out.WriteLine("inputData:");
System.Console.Out.WriteLine(inputData.ToString());
JobConf job = new JobConf(conf, typeof(Org.Apache.Hadoop.Mapred.TestFieldSelection
));
FileInputFormat.SetInputPaths(job, InputDir);
job.SetInputFormat(typeof(TextInputFormat));
job.SetMapperClass(typeof(FieldSelectionMapReduce));
job.SetReducerClass(typeof(FieldSelectionMapReduce));
FileOutputFormat.SetOutputPath(job, OutputDir);
job.SetOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputFormat(typeof(TextOutputFormat));
job.SetNumReduceTasks(1);
job.Set(FieldSelectionHelper.DataFieldSeperator, "-");
job.Set(FieldSelectionHelper.MapOutputKeyValueSpec, "6,5,1-3:0-");
job.Set(FieldSelectionHelper.ReduceOutputKeyValueSpec, ":4,3,2,1,0,0-");
JobClient.RunJob(job);
//
// Finally, we compare the reconstructed answer key with the
// original one. Remember, we need to ignore zero-count items
// in the original key.
//
bool success = true;
Path outPath = new Path(OutputDir, "part-00000");
string outdata = MapReduceTestUtil.ReadOutput(outPath, job);
NUnit.Framework.Assert.AreEqual(expectedOutput.ToString(), outdata);
fs.Delete(OutputDir, true);
fs.Delete(InputDir, true);
}
/// <summary>Tests one of the maps consuming output.</summary>
/// <exception cref="System.Exception"/>
public virtual void TestChainMapNoOuptut()
{
Configuration conf = CreateJobConf();
string expectedOutput = string.Empty;
Job job = MapReduceTestUtil.CreateJob(conf, inDir, outDir, 1, 0, input);
job.SetJobName("chain");
ChainMapper.AddMapper(job, typeof(TestChainErrors.ConsumeMap), typeof(IntWritable
), typeof(Text), typeof(LongWritable), typeof(Text), null);
ChainMapper.AddMapper(job, typeof(Mapper), typeof(LongWritable), typeof(Text), typeof(
LongWritable), typeof(Text), null);
job.WaitForCompletion(true);
NUnit.Framework.Assert.IsTrue("Job failed", job.IsSuccessful());
NUnit.Framework.Assert.AreEqual("Outputs doesn't match", expectedOutput, MapReduceTestUtil
.ReadOutput(outDir, conf));
}
// test chain mapper and reducer by adding single mapper and reducer to chain
/// <exception cref="System.Exception"/>
public virtual void TestNoChain()
{
Path inDir = new Path(localPathRoot, "testing/chain/input");
Path outDir = new Path(localPathRoot, "testing/chain/output");
string input = "a\nb\na\n";
string expectedOutput = "a\t2\nb\t1\n";
Configuration conf = CreateJobConf();
Job job = MapReduceTestUtil.CreateJob(conf, inDir, outDir, 1, 1, input);
job.SetJobName("chain");
ChainMapper.AddMapper(job, typeof(TokenCounterMapper), typeof(object), typeof(Text
), typeof(Text), typeof(IntWritable), null);
ChainReducer.SetReducer(job, typeof(IntSumReducer), typeof(Text), typeof(IntWritable
), typeof(Text), typeof(IntWritable), null);
job.WaitForCompletion(true);
NUnit.Framework.Assert.IsTrue("Job failed", job.IsSuccessful());
NUnit.Framework.Assert.AreEqual("Outputs doesn't match", expectedOutput, MapReduceTestUtil
.ReadOutput(outDir, conf));
}
/// <exception cref="System.IO.IOException"/>
public static TestJobSysDirWithDFS.TestResult LaunchWordCount(JobConf conf, Path
inDir, Path outDir, string input, int numMaps, int numReduces, string sysDir)
{
FileSystem inFs = inDir.GetFileSystem(conf);
FileSystem outFs = outDir.GetFileSystem(conf);
outFs.Delete(outDir, true);
if (!inFs.Mkdirs(inDir))
{
throw new IOException("Mkdirs failed to create " + inDir.ToString());
}
{
DataOutputStream file = inFs.Create(new Path(inDir, "part-0"));
file.WriteBytes(input);
file.Close();
}
conf.SetJobName("wordcount");
conf.SetInputFormat(typeof(TextInputFormat));
// the keys are words (strings)
conf.SetOutputKeyClass(typeof(Text));
// the values are counts (ints)
conf.SetOutputValueClass(typeof(IntWritable));
conf.SetMapperClass(typeof(WordCount.MapClass));
conf.SetCombinerClass(typeof(WordCount.Reduce));
conf.SetReducerClass(typeof(WordCount.Reduce));
FileInputFormat.SetInputPaths(conf, inDir);
FileOutputFormat.SetOutputPath(conf, outDir);
conf.SetNumMapTasks(numMaps);
conf.SetNumReduceTasks(numReduces);
conf.Set(JTConfig.JtSystemDir, "/tmp/subru/mapred/system");
JobClient jobClient = new JobClient(conf);
RunningJob job = JobClient.RunJob(conf);
// Checking that the Job Client system dir is not used
NUnit.Framework.Assert.IsFalse(FileSystem.Get(conf).Exists(new Path(conf.Get(JTConfig
.JtSystemDir))));
// Check if the Job Tracker system dir is propogated to client
NUnit.Framework.Assert.IsFalse(sysDir.Contains("/tmp/subru/mapred/system"));
NUnit.Framework.Assert.IsTrue(sysDir.Contains("custom"));
return(new TestJobSysDirWithDFS.TestResult(job, MapReduceTestUtil.ReadOutput(outDir
, conf)));
}
/// <exception cref="System.IO.IOException"/>
private string LaunchWordCount(JobConf conf, string input, int numMaps, int numReduces
)
{
Path inDir = new Path("testing/wc/input");
Path outDir = new Path("testing/wc/output");
// Hack for local FS that does not have the concept of a 'mounting point'
if (IsLocalFS())
{
string localPathRoot = Runtime.GetProperty("test.build.data", "/tmp").ToString().
Replace(' ', '+');
inDir = new Path(localPathRoot, inDir);
outDir = new Path(localPathRoot, outDir);
}
FileSystem fs = FileSystem.Get(conf);
fs.Delete(outDir, true);
if (!fs.Mkdirs(inDir))
{
throw new IOException("Mkdirs failed to create " + inDir.ToString());
}
{
DataOutputStream file = fs.Create(new Path(inDir, "part-0"));
file.WriteBytes(input);
file.Close();
}
conf.SetJobName("wordcount");
conf.SetInputFormat(typeof(TextInputFormat));
// the keys are words (strings)
conf.SetOutputKeyClass(typeof(Text));
// the values are counts (ints)
conf.SetOutputValueClass(typeof(IntWritable));
conf.SetMapperClass(typeof(WordCount.MapClass));
conf.SetCombinerClass(typeof(WordCount.Reduce));
conf.SetReducerClass(typeof(WordCount.Reduce));
FileInputFormat.SetInputPaths(conf, inDir);
FileOutputFormat.SetOutputPath(conf, outDir);
conf.SetNumMapTasks(numMaps);
conf.SetNumReduceTasks(numReduces);
JobClient.RunJob(conf);
return(MapReduceTestUtil.ReadOutput(outDir, conf));
}
/// <exception cref="System.IO.IOException"/>
internal static void RunProgram(MiniMRCluster mr, MiniDFSCluster dfs, Path program
, Path inputPath, Path outputPath, int numMaps, int numReduces, string[] expectedResults
, JobConf conf)
{
Path wordExec = new Path("testing/bin/application");
JobConf job = null;
if (conf == null)
{
job = mr.CreateJobConf();
}
else
{
job = new JobConf(conf);
}
job.SetNumMapTasks(numMaps);
job.SetNumReduceTasks(numReduces);
{
FileSystem fs = dfs.GetFileSystem();
fs.Delete(wordExec.GetParent(), true);
fs.CopyFromLocalFile(program, wordExec);
Submitter.SetExecutable(job, fs.MakeQualified(wordExec).ToString());
Submitter.SetIsJavaRecordReader(job, true);
Submitter.SetIsJavaRecordWriter(job, true);
FileInputFormat.SetInputPaths(job, inputPath);
FileOutputFormat.SetOutputPath(job, outputPath);
RunningJob rJob = null;
if (numReduces == 0)
{
rJob = Submitter.JobSubmit(job);
while (!rJob.IsComplete())
{
try
{
Sharpen.Thread.Sleep(1000);
}
catch (Exception ie)
{
throw new RuntimeException(ie);
}
}
}
else
{
rJob = Submitter.RunJob(job);
}
NUnit.Framework.Assert.IsTrue("pipes job failed", rJob.IsSuccessful());
Counters counters = rJob.GetCounters();
Counters.Group wordCountCounters = counters.GetGroup("WORDCOUNT");
int numCounters = 0;
foreach (Counters.Counter c in wordCountCounters)
{
System.Console.Out.WriteLine(c);
++numCounters;
}
NUnit.Framework.Assert.IsTrue("No counters found!", (numCounters > 0));
}
IList <string> results = new AList <string>();
foreach (Path p in FileUtil.Stat2Paths(dfs.GetFileSystem().ListStatus(outputPath,
new Utils.OutputFileUtils.OutputFilesFilter())))
{
results.AddItem(MapReduceTestUtil.ReadOutput(p, job));
}
NUnit.Framework.Assert.AreEqual("number of reduces is wrong", expectedResults.Length
, results.Count);
for (int i = 0; i < results.Count; i++)
{
NUnit.Framework.Assert.AreEqual("pipes program " + program + " output " + i + " wrong"
, expectedResults[i], results[i]);
}
}
/// <exception cref="System.Exception"/>
public static void Launch()
{
JobConf conf = new JobConf(typeof(Org.Apache.Hadoop.Mapred.Lib.Aggregate.TestAggregates
));
FileSystem fs = FileSystem.Get(conf);
int numOfInputLines = 20;
Path OutputDir = new Path("build/test/output_for_aggregates_test");
Path InputDir = new Path("build/test/input_for_aggregates_test");
string inputFile = "input.txt";
fs.Delete(InputDir, true);
fs.Mkdirs(InputDir);
fs.Delete(OutputDir, true);
StringBuilder inputData = new StringBuilder();
StringBuilder expectedOutput = new StringBuilder();
expectedOutput.Append("max\t19\n");
expectedOutput.Append("min\t1\n");
FSDataOutputStream fileOut = fs.Create(new Path(InputDir, inputFile));
for (int i = 1; i < numOfInputLines; i++)
{
expectedOutput.Append("count_").Append(idFormat.Format(i));
expectedOutput.Append("\t").Append(i).Append("\n");
inputData.Append(idFormat.Format(i));
for (int j = 1; j < i; j++)
{
inputData.Append(" ").Append(idFormat.Format(i));
}
inputData.Append("\n");
}
expectedOutput.Append("value_as_string_max\t9\n");
expectedOutput.Append("value_as_string_min\t1\n");
expectedOutput.Append("uniq_count\t15\n");
fileOut.Write(Sharpen.Runtime.GetBytesForString(inputData.ToString(), "utf-8"));
fileOut.Close();
System.Console.Out.WriteLine("inputData:");
System.Console.Out.WriteLine(inputData.ToString());
JobConf job = new JobConf(conf, typeof(Org.Apache.Hadoop.Mapred.Lib.Aggregate.TestAggregates
));
FileInputFormat.SetInputPaths(job, InputDir);
job.SetInputFormat(typeof(TextInputFormat));
FileOutputFormat.SetOutputPath(job, OutputDir);
job.SetOutputFormat(typeof(TextOutputFormat));
job.SetMapOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetMapOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetNumReduceTasks(1);
job.SetMapperClass(typeof(ValueAggregatorMapper));
job.SetReducerClass(typeof(ValueAggregatorReducer));
job.SetCombinerClass(typeof(ValueAggregatorCombiner));
job.SetInt("aggregator.descriptor.num", 1);
job.Set("aggregator.descriptor.0", "UserDefined,org.apache.hadoop.mapred.lib.aggregate.AggregatorTests"
);
job.SetLong("aggregate.max.num.unique.values", 14);
JobClient.RunJob(job);
//
// Finally, we compare the reconstructed answer key with the
// original one. Remember, we need to ignore zero-count items
// in the original key.
//
bool success = true;
Path outPath = new Path(OutputDir, "part-00000");
string outdata = MapReduceTestUtil.ReadOutput(outPath, job);
System.Console.Out.WriteLine("full out data:");
System.Console.Out.WriteLine(outdata.ToString());
outdata = Sharpen.Runtime.Substring(outdata, 0, expectedOutput.ToString().Length);
NUnit.Framework.Assert.AreEqual(expectedOutput.ToString(), outdata);
//fs.delete(OUTPUT_DIR);
fs.Delete(InputDir, true);
}
/// <exception cref="System.Exception"/>
public virtual void TestChain()
{
Path inDir = new Path(localPathRoot, "testing/chain/input");
Path outDir = new Path(localPathRoot, "testing/chain/output");
string input = "1\n2\n";
string expectedOutput = "0\t1ABCRDEF\n2\t2ABCRDEF\n";
Configuration conf = CreateJobConf();
CleanFlags(conf);
conf.Set("a", "X");
Job job = MapReduceTestUtil.CreateJob(conf, inDir, outDir, 1, 1, input);
job.SetJobName("chain");
Configuration mapAConf = new Configuration(false);
mapAConf.Set("a", "A");
ChainMapper.AddMapper(job, typeof(TestMapReduceChain.AMap), typeof(LongWritable),
typeof(Text), typeof(LongWritable), typeof(Text), mapAConf);
ChainMapper.AddMapper(job, typeof(TestMapReduceChain.BMap), typeof(LongWritable),
typeof(Text), typeof(LongWritable), typeof(Text), null);
ChainMapper.AddMapper(job, typeof(TestMapReduceChain.CMap), typeof(LongWritable),
typeof(Text), typeof(LongWritable), typeof(Text), null);
Configuration reduceConf = new Configuration(false);
reduceConf.Set("a", "C");
ChainReducer.SetReducer(job, typeof(TestMapReduceChain.RReduce), typeof(LongWritable
), typeof(Text), typeof(LongWritable), typeof(Text), reduceConf);
ChainReducer.AddMapper(job, typeof(TestMapReduceChain.DMap), typeof(LongWritable)
, typeof(Text), typeof(LongWritable), typeof(Text), null);
Configuration mapEConf = new Configuration(false);
mapEConf.Set("a", "E");
ChainReducer.AddMapper(job, typeof(TestMapReduceChain.EMap), typeof(LongWritable)
, typeof(Text), typeof(LongWritable), typeof(Text), mapEConf);
ChainReducer.AddMapper(job, typeof(TestMapReduceChain.FMap), typeof(LongWritable)
, typeof(Text), typeof(LongWritable), typeof(Text), null);
job.WaitForCompletion(true);
NUnit.Framework.Assert.IsTrue("Job failed", job.IsSuccessful());
string str = "flag not set";
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.A"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.B"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.C"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "reduce.setup.R"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.D"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.E"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.setup.F"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.A.value.1"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.A.value.2"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.B.value.1A"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.B.value.2A"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.C.value.1AB"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.C.value.2AB"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "reduce.R.value.1ABC"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "reduce.R.value.2ABC"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.D.value.1ABCR"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.D.value.2ABCR"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.E.value.1ABCRD"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.E.value.2ABCRD"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.F.value.1ABCRDE"));
NUnit.Framework.Assert.IsTrue(str, GetFlag(conf, "map.F.value.2ABCRDE"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.A"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.B"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.C"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "reduce.cleanup.R"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.D"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.E"));
NUnit.Framework.Assert.IsTrue(GetFlag(conf, "map.cleanup.F"));
NUnit.Framework.Assert.AreEqual("Outputs doesn't match", expectedOutput, MapReduceTestUtil
.ReadOutput(outDir, conf));
}
/// <exception cref="System.Exception"/>
public static void Launch()
{
Configuration conf = new Configuration();
FileSystem fs = FileSystem.Get(conf);
int numOfInputLines = 20;
Path OutputDir = new Path("build/test/output_for_aggregates_test");
Path InputDir = new Path("build/test/input_for_aggregates_test");
string inputFile = "input.txt";
fs.Delete(InputDir, true);
fs.Mkdirs(InputDir);
fs.Delete(OutputDir, true);
StringBuilder inputData = new StringBuilder();
StringBuilder expectedOutput = new StringBuilder();
expectedOutput.Append("max\t19\n");
expectedOutput.Append("min\t1\n");
FSDataOutputStream fileOut = fs.Create(new Path(InputDir, inputFile));
for (int i = 1; i < numOfInputLines; i++)
{
expectedOutput.Append("count_").Append(idFormat.Format(i));
expectedOutput.Append("\t").Append(i).Append("\n");
inputData.Append(idFormat.Format(i));
for (int j = 1; j < i; j++)
{
inputData.Append(" ").Append(idFormat.Format(i));
}
inputData.Append("\n");
}
expectedOutput.Append("value_as_string_max\t9\n");
expectedOutput.Append("value_as_string_min\t1\n");
expectedOutput.Append("uniq_count\t15\n");
fileOut.Write(Sharpen.Runtime.GetBytesForString(inputData.ToString(), "utf-8"));
fileOut.Close();
System.Console.Out.WriteLine("inputData:");
System.Console.Out.WriteLine(inputData.ToString());
conf.SetInt(ValueAggregatorJobBase.DescriptorNum, 1);
conf.Set(ValueAggregatorJobBase.Descriptor + ".0", "UserDefined,org.apache.hadoop.mapreduce.lib.aggregate.AggregatorTests"
);
conf.SetLong(UniqValueCount.MaxNumUniqueValues, 14);
Job job = Job.GetInstance(conf);
FileInputFormat.SetInputPaths(job, InputDir);
job.SetInputFormatClass(typeof(TextInputFormat));
FileOutputFormat.SetOutputPath(job, OutputDir);
job.SetOutputFormatClass(typeof(TextOutputFormat));
job.SetMapOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetMapOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputKeyClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetOutputValueClass(typeof(Org.Apache.Hadoop.IO.Text));
job.SetNumReduceTasks(1);
job.SetMapperClass(typeof(ValueAggregatorMapper));
job.SetReducerClass(typeof(ValueAggregatorReducer));
job.SetCombinerClass(typeof(ValueAggregatorCombiner));
job.WaitForCompletion(true);
NUnit.Framework.Assert.IsTrue(job.IsSuccessful());
//
// Finally, we compare the reconstructed answer key with the
// original one. Remember, we need to ignore zero-count items
// in the original key.
//
string outdata = MapReduceTestUtil.ReadOutput(OutputDir, conf);
System.Console.Out.WriteLine("full out data:");
System.Console.Out.WriteLine(outdata.ToString());
outdata = Sharpen.Runtime.Substring(outdata, 0, expectedOutput.ToString().Length);
NUnit.Framework.Assert.AreEqual(expectedOutput.ToString(), outdata);
fs.Delete(OutputDir, true);
fs.Delete(InputDir, true);
}
