public static void main(String[] args)
throws IOException, ClassNotFoundException, InterruptedException {
Configuration conf = new Configuration();
Job job = new Job(conf, "job");
job.setJarByClass(PVidConvert.class);
job.setMapperClass(Map1.class);
job.setReducerClass(Reduce1.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path("/tmp/temporary_execution/"));
job.waitForCompletion(true);
Configuration conf1 = new Configuration();
Job job1 = new Job(conf1, "job1");
job1.setJarByClass(PVidConvert.class);
job1.setMapperClass(Map2.class);
job1.setReducerClass(Reduce2.class);
job1.setOutputKeyClass(Text.class);
job1.setOutputValueClass(Text.class);
FileInputFormat.addInputPath(job1, new Path("/tmp/temporary_execution/"));
FileOutputFormat.setOutputPath(job1, new Path(args[1]));
job1.waitForCompletion(true);
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
// conf.addResource(new Path("/home/hadoop/hadoop/hadoop-1.2.1/conf/core-site.xml"));
// conf.addResource(new Path("/home/hadoop/hadoop/hadoop-1.2.1/conf/hdfs-site.xml"));
// ===== Stage 1 =====
Job job1 = new Job(conf, "Stage 1: Frequency Count");
job1.setJarByClass(HashCount1.class);
job1.setMapperClass(Mapper1.class);
// job1.setCombinerClass(Combine1.class);
job1.setReducerClass(Reducer1.class);
job1.setOutputKeyClass(Text.class);
job1.setOutputValueClass(IntWritable.class);
job1.setNumReduceTasks(1);
FileInputFormat.addInputPath(job1, new Path("/TwitterInFiles/twitter_10k.tar.gz"));
FileOutputFormat.setOutputPath(job1, new Path("/twitterOuts/output1"));
job1.waitForCompletion(true);
// ===== Stage 2 =====
Job job2 = new Job(conf, "Stage 2: Sort");
job2.setJarByClass(HashCount1.class);
job2.setMapperClass(Mapper2.class);
// job1.setCombinerClass(IntSumReducer.class);
job2.setReducerClass(Reducer2.class);
job2.setOutputKeyClass(IntWritable.class);
job2.setOutputValueClass(Text.class);
job2.setNumReduceTasks(1);
FileInputFormat.addInputPath(job2, new Path("/twitterOuts/output1"));
FileOutputFormat.setOutputPath(job2, new Path("/twitterOuts/output2"));
job2.waitForCompletion(true);
System.exit(job2.waitForCompletion(true) ? 0 : 1);
}
public static void main(String[] args) throws Exception {
final String NAME_NODE = "hdfs://sandbox.hortonworks.com:8020";
Configuration conf = new Configuration();
Job job = Job.getInstance(conf);
job.setJarByClass(WordCount.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(IntWritable.class);
job.setOutputKeyClass(IntWritable.class);
job.setOutputValueClass(NullWritable.class);
if (args.length > 2) {
job.setNumReduceTasks(Integer.parseInt(args[2]));
}
job.setMapperClass(CountMapper.class);
job.setReducerClass(CountReducer.class);
job.setJarByClass(WordCount.class);
job.setNumReduceTasks(1);
FileInputFormat.addInputPath(job, new Path(args[0] + "data/plot_summaries.txt"));
FileSystem fs = FileSystem.get(conf);
// handle (e.g. delete) existing output path
Path outputDestination = new Path(args[0] + args[1]);
if (fs.exists(outputDestination)) {
fs.delete(outputDestination, true);
}
// set output path & start job1
FileOutputFormat.setOutputPath(job, outputDestination);
int jobCompletionStatus = job.waitForCompletion(true) ? 0 : 1;
}
@Override
public int run(String[] args) throws Exception {
// TODO Auto-generated method stub
Configuration conf = getConf();
// conf.set("stat_date", dateString);
Job job = new Job(conf, "DayhslogUserDateNewMac");
job.setJarByClass(DayhslogUserDate.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileInputFormat.addInputPath(job, new Path(args[1]));
FileOutputFormat.setOutputPath(job, new Path(args[2] + "tmp"));
FileSystem.get(conf).delete(new Path(args[2] + "tmp"), true);
job.setMapperClass(DayhslogUserDateNewMacMapper.class);
job.setReducerClass(DayhslogUserDateNewMacReducer.class);
// job.setInputFormatClass(LzoTextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setNumReduceTasks(10);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(Text.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
int code = job.waitForCompletion(true) ? 0 : 1;
if (code == 0) {
Job resultJob = new Job(conf, "DayhslogUserDate");
resultJob.setJarByClass(DayhslogUserDate.class);
FileInputFormat.addInputPath(resultJob, new Path(args[0]));
FileInputFormat.addInputPath(resultJob, new Path(args[2] + "tmp"));
FileOutputFormat.setOutputPath(resultJob, new Path(args[2]));
FileSystem.get(conf).delete(new Path(args[2]), true);
resultJob.setMapperClass(DayhslogUserDateMapper.class);
resultJob.setReducerClass(DayhslogUserDateReducer.class);
resultJob.setNumReduceTasks(10);
resultJob.setMapOutputKeyClass(Text.class);
resultJob.setMapOutputValueClass(Text.class);
resultJob.setOutputKeyClass(Text.class);
resultJob.setOutputValueClass(Text.class);
code = resultJob.waitForCompletion(true) ? 0 : 1;
}
Path tmpPath = new Path(args[2] + "tmp");
FileSystem.get(conf).delete(tmpPath, true);
System.exit(code);
return code;
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
Job job1 = new Job(conf, "combine votes");
job1.setJarByClass(VoteCount.class);
job1.setMapperClass(MergeFilesMapper.class);
job1.setCombinerClass(MergedFilesReducer.class);
job1.setReducerClass(MergedFilesReducer.class);
job1.setOutputKeyClass(Text.class);
job1.setOutputValueClass(Text.class);
FileInputFormat.addInputPath(job1, new Path(args[0]));
FileOutputFormat.setOutputPath(job1, new Path(args[1] + "-tmp"));
job1.waitForCompletion(true);
Job job2 = new Job(conf, "votes count");
job2.setJarByClass(VoteCount.class);
job2.setMapperClass(CalculateVotesMapper.class);
job2.setCombinerClass(CalculateVotesReducer.class);
job2.setReducerClass(CalculateVotesReducer.class);
job2.setOutputKeyClass(Text.class);
job2.setOutputValueClass(IntWritable.class);
FileInputFormat.addInputPath(job2, new Path(args[1] + "-tmp"));
FileOutputFormat.setOutputPath(job2, new Path(args[1]));
System.exit(job2.waitForCompletion(true) ? 0 : 1);
}
public int run(String[] args) throws Exception {
Configuration conf = getConf();
GenericOptionsParser optionparser = new GenericOptionsParser(conf, args);
conf = optionparser.getConfiguration();
Job job = new Job(conf, conf.get("job_name"));
job.setJarByClass(DeliverFormatForUVMR.class);
FileInputFormat.addInputPaths(job, conf.get("input_dir"));
String outputDir = conf.get("output_dir");
String tmpDir = outputDir + "_tmp";
Path tmpOut = new Path(tmpDir);
FileOutputFormat.setOutputPath(job, tmpOut);
tmpOut.getFileSystem(conf).delete(tmpOut, true);
job.setMapperClass(DeliverFormatForUVMapper.class);
job.setCombinerClass(DeliverFormatForUVCombiner.class);
job.setReducerClass(DeliverFormatForUVReducer.class);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setNumReduceTasks(conf.getInt("reduce_num", 20));
int code = job.waitForCompletion(true) ? 0 : 1;
if (code == 0) {
// this job is for combining small files into one
Job combineJob = new Job(conf, "CombineTmpData");
combineJob.setJarByClass(DeliverFormatForUVMR.class);
FileInputFormat.addInputPath(combineJob, new Path(tmpDir));
FileOutputFormat.setOutputPath(combineJob, new Path(outputDir));
combineJob.setMapperClass(IdentityMapper.class);
combineJob.setReducerClass(IdentityReducer.class);
combineJob.setInputFormatClass(KeyValueTextInputFormat.class);
combineJob.setOutputFormatClass(TextOutputFormat.class);
combineJob.setOutputKeyClass(Text.class);
combineJob.setOutputValueClass(Text.class);
TextOutputFormat.setCompressOutput(combineJob, true);
TextOutputFormat.setOutputCompressorClass(combineJob, LzopCodec.class);
combineJob.setNumReduceTasks(1);
code = combineJob.waitForCompletion(true) ? 0 : 1;
}
FileSystem.get(conf).delete(tmpOut, true);
LzoIndexer lzoIndexer = new LzoIndexer(conf);
lzoIndexer.index(new Path(outputDir));
System.exit(code);
return code;
}
@Override
public void searchDB(String keyword) {
long t0 = System.nanoTime();
try {
// First mapreduce phase setup
HBaseConfiguration conf = config;
Job job;
job = new Job(conf, "MapReducePhase1");
job.setJarByClass(MapReduceHbaseDB.class);
Scan scan = new Scan();
String columns = "myColumnFamily";
scan.addColumns(columns);
scan.setCaching(10000);
// Second mapreduce phase setup
HBaseConfiguration conf2 = new HBaseConfiguration();
Job job2 = new Job(conf2, "MapReducePhase2");
job2.setJarByClass(MapReduceHbaseDB.class);
Scan scan2 = new Scan();
String columns2 = "resultF";
scan2.addColumns(columns2);
scan2.setCaching(10000);
// Execution of the first mapreduce phase
TableMapReduceUtil.initTableMapperJob(
"myTable", scan, Mapper1.class, Text.class, Text.class, job);
TableMapReduceUtil.initTableReducerJob("result", Reducer1.class, job);
job.waitForCompletion(true);
long t2 = System.nanoTime();
// Execution of the second mapreduce phase
TableMapReduceUtil.initTableMapperJob(
"result", scan2, Mapper2.class, Text.class, IntWritable.class, job2);
TableMapReduceUtil.initTableReducerJob("result2", Reducer2.class, job2);
job2.waitForCompletion(true);
long t1 = System.nanoTime();
double totalTime = (t1 - t0) / 1000000000.0;
System.out.println("Total time for the search : " + totalTime + " seconds");
double firstPhaseTime = (t2 - t0) / 1000000000.0;
System.out.println("Time for the first mapreduce phase : " + firstPhaseTime + " seconds");
double secondPhaseTime = (t1 - t2) / 1000000000.0;
System.out.println("Time for the first mapreduce phase : " + secondPhaseTime + " seconds");
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
public int run(String[] args) throws Exception {
Configuration conf = getConf();
GenericOptionsParser gop = new GenericOptionsParser(conf, args);
conf = gop.getConfiguration();
Job job = new Job(conf, "ClientUserInstallMR");
job.setJarByClass(ClientUserInstallMR.class);
FileInputFormat.addInputPaths(job, conf.get("input_dir"));
String outputDir = conf.get("output_dir");
String tmpDir = outputDir + "_tmp";
Path tmpOutput = new Path(tmpDir);
FileOutputFormat.setOutputPath(job, tmpOutput);
tmpOutput.getFileSystem(conf).delete(tmpOutput, true);
job.setMapperClass(ClientUserInstallFirstMapper.class);
job.setReducerClass(ClientUserInstallFirstReduce.class);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setNumReduceTasks(30);
int code = job.waitForCompletion(true) ? 0 : 1;
if (code == 0) {
Job secondJob = new Job(conf, "ClientUserInstallResult");
secondJob.setJarByClass(ClientUserInstallMR.class);
conf.set("stat_date", conf.get("stat_date"));
FileInputFormat.addInputPath(secondJob, new Path(tmpDir));
Path output = new Path(outputDir);
FileOutputFormat.setOutputPath(secondJob, output);
output.getFileSystem(conf).delete(output, true);
secondJob.setMapperClass(ClientUserInstallSecondMapper.class);
secondJob.setReducerClass(ClientUserInstallSecondReduce.class);
secondJob.setInputFormatClass(KeyValueTextInputFormat.class);
secondJob.setOutputFormatClass(TextOutputFormat.class);
secondJob.setOutputKeyClass(Text.class);
secondJob.setOutputValueClass(Text.class);
secondJob.setNumReduceTasks(1);
code = secondJob.waitForCompletion(true) ? 0 : 1;
}
FileSystem.get(conf).delete(tmpOutput, true);
System.exit(code);
return code;
}
/**
* Create a map and reduce Hadoop job. Does not set the name on the job.
* @param inputPath The input {@link org.apache.hadoop.fs.Path}
* @param outputPath The output {@link org.apache.hadoop.fs.Path}
* @param inputFormat The {@link org.apache.hadoop.mapreduce.InputFormat}
* @param mapper The {@link org.apache.hadoop.mapreduce.Mapper} class to use
* @param mapperKey The {@link org.apache.hadoop.io.Writable} key class. If the Mapper is a no-op, this value may be null
* @param mapperValue The {@link org.apache.hadoop.io.Writable} value class. If the Mapper is a no-op, this value may be null
* @param reducer The {@link org.apache.hadoop.mapreduce.Reducer} to use
* @param reducerKey The reducer key class.
* @param reducerValue The reducer value class.
* @param outputFormat The {@link org.apache.hadoop.mapreduce.OutputFormat}.
* @param conf The {@link org.apache.hadoop.conf.Configuration} to use.
* @return The {@link org.apache.hadoop.mapreduce.Job}.
* @throws IOException if there is a problem with the IO.
*
* @see #getCustomJobName(String, org.apache.hadoop.mapreduce.JobContext, Class, Class)
* @see #prepareJob(org.apache.hadoop.fs.Path, org.apache.hadoop.fs.Path, Class, Class, Class, Class, Class, org.apache.hadoop.conf.Configuration)
*/
@SuppressWarnings("rawtypes")
public static Job prepareJob(Path inputPath,
Path outputPath,
Class<? extends InputFormat> inputFormat,
Class<? extends Mapper> mapper,
Class<? extends Writable> mapperKey,
Class<? extends Writable> mapperValue,
Class<? extends Reducer> reducer,
Class<? extends Writable> reducerKey,
Class<? extends Writable> reducerValue,
Class<? extends OutputFormat> outputFormat,
Configuration conf) throws IOException {
//Job job = new Job(new Configuration(conf));
Job job = Job.getInstance(conf);
Configuration jobConf = job.getConfiguration();
if (reducer.equals(Reducer.class)) {
if (mapper.equals(Mapper.class)) {
throw new IllegalStateException("Can't figure out the user class jar file from mapper/reducer");
}
job.setJarByClass(mapper);
} else {
job.setJarByClass(reducer);
}
job.setInputFormatClass(inputFormat);
jobConf.set("mapred.input.dir", inputPath.toString());
job.setMapperClass(mapper);
if (mapperKey != null) {
job.setMapOutputKeyClass(mapperKey);
}
if (mapperValue != null) {
job.setMapOutputValueClass(mapperValue);
}
jobConf.setBoolean("mapred.compress.map.output", true);
job.setReducerClass(reducer);
job.setOutputKeyClass(reducerKey);
job.setOutputValueClass(reducerValue);
job.setOutputFormatClass(outputFormat);
jobConf.set("mapred.output.dir", outputPath.toString());
return job;
}
public int run(String[] args) throws Exception {
if (args.length < 2) {
LOG.error("Usage: " + getClass().getName() + " inputFileHDFS outputFileHDFS");
return 1;
}
String inputFile = args[0];
String outputFile = args[1] + System.nanoTime();
Configuration configuration = getConf();
Job job = new Job(configuration);
job.setJarByClass(getClass());
job.setJobName(getClass().getName());
job.setMapperClass(ReadRequestMap.class);
job.setNumReduceTasks(0);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
FileInputFormat.setInputPaths(job, new Path(inputFile));
FileOutputFormat.setOutputPath(job, new Path(outputFile));
job.waitForCompletion(true);
return 0;
}
public static void main(String[] args) throws Exception {
sourcePhoto = "/home/hduser/workspace/images/source.jpg";
sourceFingerprint = SimilarImageSearch.produceFingerPrint(sourcePhoto);
final Configuration conf = new Configuration();
MongoConfigUtil.setInputURI(conf, "mongodb://localhost/photo.fingerprint");
MongoConfigUtil.setOutputURI(conf, "mongodb://localhost/photo.handsomeOut");
System.out.println("Conf: " + conf);
final Job job = new Job(conf, "similar photo");
job.setJarByClass(MdbSimilarPhoto.class);
// Mapper,Reduce and Combiner type definition
job.setMapperClass(PhotoMapper.class);
job.setCombinerClass(SimilarityReducer.class);
job.setReducerClass(SimilarityReducer.class);
// output key/value type definition
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(DoubleWritable.class);
// InputFormat and OutputFormat type definition
job.setInputFormatClass(MongoInputFormat.class);
job.setOutputFormatClass(MongoOutputFormat.class);
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
public static void main(String[] args) throws Exception {
String paths = "/user/cloudera/00";
String path1 = paths;
String path2 = "";
for (int i = 1; i <= 3; i++) {
System.out.println("Now exectuing the " + i + "-th job!");
Job job = new Job();
path2 = paths + i;
job.setJarByClass(PageRank.class);
job.setJobName("PageRank");
path2 = paths + i;
FileInputFormat.addInputPath(job, new Path(path1));
FileOutputFormat.setOutputPath(job, new Path(path2));
job.setMapperClass(PageRankMapper.class);
job.setReducerClass(PageRankReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
path1 = path2;
job.waitForCompletion(true);
}
// System.exit(job.waitForCompletion(true) ? 0 : 1);
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
if (otherArgs.length < 2) {
System.err.println("Usage: RemoveDup <in> [<in>...] <out>");
System.exit(2);
}
// 删除输出目录(可选,省得多次运行时,总是报OUTPUT目录已存在)
// HDFSUtil.deleteFile(conf, otherArgs[otherArgs.length - 1]);
Job job = Job.getInstance(conf, "RemoveDup");
job.setJarByClass(RemoveDup.class);
job.setMapperClass(RemoveDupMapper.class);
job.setCombinerClass(RemoveDupReducer.class);
job.setReducerClass(RemoveDupReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(NullWritable.class);
for (int i = 0; i < otherArgs.length - 1; ++i) {
FileInputFormat.addInputPath(job, new Path(otherArgs[i]));
}
FileOutputFormat.setOutputPath(job, new Path(otherArgs[otherArgs.length - 1]));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
private void doMapReduce() {
try {
Job job = Job.getInstance();
job.getConfiguration().set(OutputFormat.NAMESPACE, "/");
job.getConfiguration().set(OutputFormat.TABLE, "LoadTest");
job.getConfiguration().setInt(OutputFormat.MUTATOR_FLAGS, MutatorFlag.NO_LOG_SYNC.getValue());
job.getConfiguration().setInt(OutputFormat.MUTATOR_FLUSH_INTERVAL, 0);
job.getConfiguration().setInt("LoadSplit.TOTAL_ROWS", this.totalRows);
job.getConfiguration().setInt("LoadSplit.CLIENTS", this.clients);
job.setJarByClass(LoadTest.class);
job.setJobName("Hypertable MapReduce connector LoadTest");
job.setInputFormatClass(LoadInputFormat.class);
job.setOutputFormatClass(OutputFormat.class);
job.setMapOutputKeyClass(KeyWritable.class);
job.setMapOutputValueClass(BytesWritable.class);
job.setMapperClass(LoadMapper.class);
job.setReducerClass(LoadReducer.class);
job.setNumReduceTasks(this.clients);
job.waitForCompletion(true);
} catch (Exception e) {
e.printStackTrace();
}
}
public int run(String[] args) throws Exception {
Configuration conf = getConf();
GenericOptionsParser gop = new GenericOptionsParser(conf, args);
conf = gop.getConfiguration();
Job job = new Job(conf, conf.get("job_name"));
FileInputFormat.addInputPaths(job, conf.get("input_dir"));
Path output = new Path(conf.get("output_dir"));
FileOutputFormat.setOutputPath(job, output);
output.getFileSystem(conf).delete(output, true);
job.setJarByClass(BrowerLogFormatMR.class);
job.setMapperClass(BrowerLogFormatMapper.class);
job.setReducerClass(BrowerLogFormatReducer.class);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setOutputKeyClass(NullWritable.class);
job.setOutputValueClass(Text.class);
job.setNumReduceTasks(1);
int code = job.waitForCompletion(true) ? 0 : 1;
return code;
}
public int run(String[] args) throws Exception {
// TODO Auto-generated method stub
Job job =
Job.getInstance(
getConf(),
"Import vessel locations from files in "
+ args[0]
+ " into table cdb_vessel:vessel_location"); // co
FileInputFormat.addInputPath(job, new Path(args[0]));
job.setJarByClass(ImportVTLocationFromFileWithReducer.class);
job.setJobName("Vessel_location_injection");
job.setInputFormatClass(VTVesselLocationFileInputFormat.class);
job.setMapOutputKeyClass(Key_IMOAndRecordTime.class);
job.setMapOutputValueClass(TextArrayWritable.class);
job.setPartitionerClass(Partitioner_IMO.class);
job.setGroupingComparatorClass(GroupComparator_IMO.class);
job.setReducerClass(ImportReducer.class);
job.setNumReduceTasks(Integer.parseInt(args[1]));
job.setOutputFormatClass(NullOutputFormat.class);
return job.waitForCompletion(true) ? 0 : 1;
}
/**
* Performs an HDF to text operation as a MapReduce job and returns total number of points
* generated.
*
* @param inPath
* @param outPath
* @param datasetName
* @param skipFillValue
* @return
* @throws IOException
* @throws ClassNotFoundException
* @throws InterruptedException
*/
public static long HDFToTextMapReduce(
Path inPath, Path outPath, String datasetName, boolean skipFillValue, OperationsParams params)
throws IOException, InterruptedException, ClassNotFoundException {
Job job = new Job(params, "HDFToText");
Configuration conf = job.getConfiguration();
job.setJarByClass(HDFToText.class);
job.setJobName("HDFToText");
// Set Map function details
job.setMapperClass(HDFToTextMap.class);
job.setNumReduceTasks(0);
// Set input information
job.setInputFormatClass(SpatialInputFormat3.class);
SpatialInputFormat3.setInputPaths(job, inPath);
if (conf.get("shape") == null) conf.setClass("shape", NASAPoint.class, Shape.class);
conf.set("dataset", datasetName);
conf.setBoolean("skipfillvalue", skipFillValue);
// Set output information
job.setOutputFormatClass(TextOutputFormat3.class);
TextOutputFormat3.setOutputPath(job, outPath);
// Run the job
boolean verbose = conf.getBoolean("verbose", false);
job.waitForCompletion(verbose);
Counters counters = job.getCounters();
Counter outputRecordCounter = counters.findCounter(Task.Counter.MAP_OUTPUT_RECORDS);
final long resultCount = outputRecordCounter.getValue();
return resultCount;
}
public static void dijkstra(String input, String output) throws Exception {
String temp = output;
/// Run HITS Algorithm JOB:2 For 32 Times
/// Setting the Value of k-> 32
for (int i = 0; i < 32; i++) {
Configuration conf = new Configuration();
Job job = new Job(conf, "hubsandspokes");
job.setJarByClass(HubsAndSpokes.class);
job.setMapperClass(HubSpokeMapper.class);
job.setReducerClass(HubSpokeReducer.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(NodeWritable.class);
job.setOutputKeyClass(NodeWritable.class);
job.setOutputValueClass(Text.class);
job.setNumReduceTasks(1);
FileInputFormat.addInputPath(job, new Path(input));
FileOutputFormat.setOutputPath(job, new Path(output));
// Toggle the value of Input and Output variable
// For Next iteration
input = output;
output = temp + Integer.toString(i);
// Wait for completing the JOB
boolean b = job.waitForCompletion(true);
if (!b) System.exit(2);
// System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}
@Override
public int run(String[] args) throws Exception {
final int ret = parseArgs(args);
if (ret < 0) {
return ret;
}
Job job = Job.getInstance(getConf());
job.setJarByClass(GreeDiFirst.class);
job.setJobName(String.format("Coverage-GreeDiFirst[%s %s]", partitionCount, selectCount));
job.getConfiguration().setInt(Fields.PARTITION_COUNT.get(), partitionCount);
job.getConfiguration().setInt(Fields.SELECT_COUNT.get(), selectCount);
job.setNumReduceTasks(partitionCount);
SetupHelper.getInstance().setSequenceInput(job, inputPath).setTextOutput(job, outputPath);
job.setMapOutputKeyClass(IntWritable.class);
job.setMapOutputValueClass(DocumentWithVectorWritable.class);
job.setOutputKeyClass(NullWritable.class);
job.setOutputValueClass(IntWritable.class);
job.setMapperClass(Map.class);
job.setReducerClass(GreeDiReducer.class);
// Delete the output directory if it exists already.
FileSystem.get(getConf()).delete(new Path(outputPath), true);
job.waitForCompletion(true);
return 0;
}
public Job getJob(Configuration conf) throws IOException {
Job job = new Job(conf, "pivoting");
job.setJarByClass(PivotingReducer.class);
job.setMapperClass(Mapper.class);
job.setReducerClass(PivotingReducer.class);
job.setInputFormatClass(SequenceFileInputFormat.class);
job.setMapOutputKeyClass(RuleWritable.class);
job.setMapOutputValueClass(MapWritable.class);
job.setOutputKeyClass(RuleWritable.class);
job.setOutputValueClass(MapWritable.class);
job.setOutputFormatClass(SequenceFileOutputFormat.class);
job.setPartitionerClass(RuleWritable.SourcePartitioner.class);
FileInputFormat.setInputPaths(job, new Path(conf.get("thrax.work-dir") + "collected"));
int maxSplitSize = conf.getInt("thrax.max-split-size", 0);
if (maxSplitSize != 0) FileInputFormat.setMaxInputSplitSize(job, maxSplitSize);
int numReducers = conf.getInt("thrax.reducers", 4);
job.setNumReduceTasks(numReducers);
FileOutputFormat.setOutputPath(job, new Path(conf.get("thrax.work-dir") + "pivoted"));
FileOutputFormat.setCompressOutput(job, true);
return job;
}
public static void main(String[] args)
throws IOException, InterruptedException, ClassNotFoundException {
Configuration conf = new Configuration();
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
if (args.length < 1) {
System.out.println("USAGE: RFDSReasoner [pool path] [options]");
return;
}
Job job = new Job(conf, "reasoner");
job.setJarByClass(TCMReasoner.class);
System.out.println(args[0]);
job.setMapperClass(TCMMapper.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(Triple.class);
job.setReducerClass(TCMReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Triple.class);
FileInputFormat.addInputPath(job, new Path(otherArgs[0]));
FileOutputFormat.setOutputPath(job, new Path(otherArgs[1]));
job.waitForCompletion(true);
Counter derivedTriples =
job.getCounters()
.findCounter("org.apache.hadoop.mapred.Task$Counter", "REDUCE_OUTPUT_RECORDS");
System.out.println(derivedTriples.getValue());
return;
}
@Override
public int run(String[] args) throws Exception {
Job job = new Job(getConf());
String jobName = "Rating predictor MR";
job.setJobName(jobName);
job.setJarByClass(UtilityPredictor.class);
FileInputFormat.addInputPaths(job, args[0]);
FileOutputFormat.setOutputPath(job, new Path(args[1]));
job.setMapperClass(UtilityPredictor.PredictionMapper.class);
job.setReducerClass(UtilityPredictor.PredictorReducer.class);
job.setMapOutputKeyClass(TextInt.class);
job.setMapOutputValueClass(Tuple.class);
job.setOutputKeyClass(NullWritable.class);
job.setOutputValueClass(Text.class);
job.setGroupingComparatorClass(ItemIdGroupComprator.class);
job.setPartitionerClass(ItemIdPartitioner.class);
Utility.setConfiguration(job.getConfiguration());
int numReducer = job.getConfiguration().getInt("utp.num.reducer", -1);
numReducer = -1 == numReducer ? job.getConfiguration().getInt("num.reducer", 1) : numReducer;
job.setNumReduceTasks(numReducer);
int status = job.waitForCompletion(true) ? 0 : 1;
return status;
}
private boolean runJob(Configuration conf)
throws IOException, InterruptedException, ClassNotFoundException {
Job job = Job.getInstance(conf, "WordCount");
job.setJarByClass(WordCount.class);
// Configure input format and files
job.setInputFormatClass(TextInputFormat.class);
FileInputFormat.addInputPath(job, new Path(inputDir));
// Configure output format and files
job.setOutputFormatClass(TextOutputFormat.class);
FileOutputFormat.setOutputPath(job, new Path(outputDir));
// set up mapper, combiner and reducer
job.setMapperClass(WordCountMapper.class);
job.setReducerClass(WordCountReducer.class);
job.setCombinerClass(WordCountReducer.class);
// set sorting, grouping and partitioning
// set key and value types
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(IntWritable.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
return job.waitForCompletion(true);
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
Job job = new Job(conf, "ESIndexCreator");
job.setJarByClass(ESIndexCreator.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setMapperClass(ESIndexCreator.MyMapper.class);
job.setNumReduceTasks(0); // Skip Reduce Task
job.setInputFormatClass(KeyValueTextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
// 프로그램 인자
// 0: 입력 파일 경로
// 1: 출력 파일 경로
// 2: elastic search server's host name
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
job.getConfiguration().set("host", args[2]);
job.waitForCompletion(true);
}
public static void main(String[] args)
throws IOException, InterruptedException, ClassNotFoundException {
if (args.length != 2) throw new IllegalArgumentException(args.length + " usage: ... ");
String bitvectorpath = args[0], outputPath = args[1];
Configuration conf = new Configuration();
Job job = Job.getInstance(new Cluster(conf), conf);
job.setJobName("int key replace phase1");
job.setJarByClass(OutlinkGrowthAnalysis.class);
job.setMapperClass(BVIdentitiyMapper.class);
job.setReducerClass(AnaylseOLGrowthReducer.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(Text.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setInputFormatClass(TabSeperatedTextInputFormat.class);
job.setOutputFormatClass(SequenceFileOutputFormat.class);
FileOutputFormat.setOutputPath(job, new Path(outputPath));
FileInputFormat.setInputPaths(job, new Path(bitvectorpath));
job.setNumReduceTasks(1);
job.waitForCompletion(true);
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
String[] remainArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
if (remainArgs.length != 2) {
System.err.println("Usage: wordcount <input> <output>");
System.exit(1);
}
Job job = new Job(conf, "wordcount");
job.setJarByClass(WordCount.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
job.setMapperClass(Map.class);
job.setCombinerClass(Reduce.class);
job.setReducerClass(Reduce.class);
job.setNumReduceTasks(4);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
FileSystem.get(conf).delete(new Path(remainArgs[1]), true);
FileInputFormat.setInputPaths(job, new Path(remainArgs[0]));
FileOutputFormat.setOutputPath(job, new Path(remainArgs[1]));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
@Override
public int run(String[] args) throws Exception {
Job job = new Job(getConf());
String jobName = "Running aggregates for numerical attributes";
job.setJobName(jobName);
job.setJarByClass(RunningAggregator.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
Utility.setConfiguration(job.getConfiguration(), "chombo");
job.setMapperClass(RunningAggregator.AggrMapper.class);
job.setReducerClass(RunningAggregator.AggrReducer.class);
job.setMapOutputKeyClass(Tuple.class);
job.setMapOutputValueClass(Tuple.class);
job.setOutputKeyClass(NullWritable.class);
job.setOutputValueClass(Text.class);
job.setNumReduceTasks(job.getConfiguration().getInt("num.reducer", 1));
int status = job.waitForCompletion(true) ? 0 : 1;
return status;
}
public int run(String[] args) throws Exception {
if (args.length != 1) {
System.out.println("usage: CountRows <table name>");
return 1;
}
Configuration conf = getConf();
try {
String tableName = args[0];
LOG.info("Before map/reduce startup");
Job job = new Job(conf, "query: count rows");
job.setJarByClass(this.getClass());
job.getConfiguration().set(TABLE_NAME, args[0]);
Scan scan = new Scan();
TableMapReduceUtil.initTableMapperJob(
tableName, scan, CountRowMapper.class, ImmutableBytesWritable.class, Put.class, job);
// TableMapReduceUtil.initTableReducerJob(tableName,
// IdentityTableReducer.class, job);
job.setNumReduceTasks(0);
LOG.info("Started " + tableName);
job.waitForCompletion(true);
LOG.info("After map/reduce completion");
} catch (Exception e) {
e.printStackTrace();
return 1;
}
return 0;
}
@Override
protected void configureJob(Job job) throws IOException {
Configuration conf = job.getConfiguration();
job.setJarByClass(PartialBuilder.class);
FileInputFormat.setInputPaths(job, getDataPath());
FileOutputFormat.setOutputPath(job, getOutputPath(conf));
job.setOutputKeyClass(TreeID.class);
job.setOutputValueClass(MapredOutput.class);
job.setMapperClass(Step1Mapper.class);
job.setNumReduceTasks(0); // no reducers
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(SequenceFileOutputFormat.class);
// For this implementation to work, mapred.map.tasks needs to be set to the actual
// number of mappers Hadoop will use:
TextInputFormat inputFormat = new TextInputFormat();
List<?> splits = inputFormat.getSplits(job);
if (splits == null || splits.isEmpty()) {
log.warn("Unable to compute number of splits?");
} else {
int numSplits = splits.size();
log.info("Setting mapred.map.tasks = {}", numSplits);
conf.setInt("mapred.map.tasks", numSplits);
}
}
public int run(String[] args) throws Exception {
// Check input arguments
if (args.length != 2) {
System.out.println("Usage: firstprog <input HIB> <output directory>");
System.exit(0);
}
// Initialize and configure MapReduce job
Job job = Job.getInstance();
// Set input format class which parses the input HIB and spawns map tasks
// job.setInputFormatClass(ImageBundleInputFormat.class);
job.setInputFormatClass(HibInputFormat.class);
// Set the driver, mapper, and reducer classes which express the computation
job.setJarByClass(SampleProgram.class);
job.setMapperClass(SampleProgramMapper.class);
job.setReducerClass(SampleProgramReducer.class);
// Set the types for the key/value pairs passed to/from map and reduce layers
job.setMapOutputKeyClass(IntWritable.class);
job.setMapOutputValueClass(FloatImage.class);
job.setOutputKeyClass(IntWritable.class);
job.setOutputValueClass(Text.class);
// Set the input and output paths on the HDFS
FileInputFormat.setInputPaths(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
// Execute the MapReduce job and block until it complets
boolean success = job.waitForCompletion(true);
// Return success or failure
return success ? 0 : 1;
}
