Example usage for org.apache.hadoop.mapred JobConf setMapOutputValueClass

Introduction

In this page you can find the example usage for org.apache.hadoop.mapred JobConf setMapOutputValueClass.

Prototype

public void setMapOutputValueClass(Class<?> theClass) 

Source Link

Document

Set the value class for the map output data.

Usage

From source file:hibench.PageRankDataGenerator.java

License:Apache License

private void createPageRankNodes() throws IOException {

    LOG.info("Creating PageRank nodes...", null);

    JobConf job = new JobConf(WebDataGen.class);
    String jobname = "Create " + paths.dname + " pagerank nodes";

    job.setJobName(jobname);//from w w  w.j  a va  2 s  .  c om

    job.setOutputKeyClass(NullWritable.class);
    job.setOutputValueClass(Text.class);

    FileInputFormat.setInputPaths(job, paths.getPath(DataPaths.LINKS));
    job.setInputFormat(TextInputFormat.class);

    if (options.PAGERANK_NODE_BALANCE) {
        /***
         * Balance the output order of nodes, to prevent the running
         * of pagerank bench from potential data skew
         */
        job.setMapOutputKeyClass(LongWritable.class);
        job.setMapOutputValueClass(NullWritable.class);

        job.setMapperClass(BalancedLinkNodesMapper.class);
        job.setReducerClass(BalancedLinkNodesReducer.class);
        //         job.setPartitionerClass(ModulusPartitioner.class);

        if (options.reds > 0) {
            job.setNumReduceTasks(options.reds);
        } else {
            job.setNumReduceTasks(DataOptions.getMaxNumReduce());
        }
    } else {
        job.setMapOutputKeyClass(Text.class);

        job.setMapperClass(OutputLinkNodesMapper.class);
        job.setNumReduceTasks(0);
    }

    if (options.SEQUENCE_OUT) {
        job.setOutputFormat(SequenceFileOutputFormat.class);
    } else {
        job.setOutputFormat(TextOutputFormat.class);
    }

    if (null != options.codecClass) {
        job.set("mapred.output.compression.type", "BLOCK");
        FileOutputFormat.setCompressOutput(job, true);
        FileOutputFormat.setOutputCompressorClass(job, options.codecClass);
    }

    FileOutputFormat.setOutputPath(job, paths.getResult(DataPaths.VERTICALS));

    LOG.info("Running Job: " + jobname);
    LOG.info("Links file " + paths.getPath(DataPaths.LINKS) + " as input");
    LOG.info("Vertices file " + paths.getResult(DataPaths.VERTICALS) + " as output");
    JobClient.runJob(job);
    LOG.info("Finished Running Job: " + jobname);

    LOG.info("Cleaning temp files...");
    paths.cleanTempFiles(paths.getResult(DataPaths.VERTICALS));
}

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From source file:hitune.analysis.mapreduce.processor.HadoopMetrics.java

License:Apache License

@Override
public void run() {
    // TODO Auto-generated method stub
    long timestamp = System.currentTimeMillis();
    JobConf conf = new JobConf(this.conf, HadoopMetrics.class);
    try {//  ww w  .  j  a va  2s .  c om
        conf.setJobName(this.getClass().getSimpleName() + timestamp);
        conf.setInputFormat(MultiSequenceFileInputFormat.class);
        conf.setMapperClass(HadoopMetrics.MapClass.class);
        conf.setReducerClass(SystemLog.ReduceClass.class);
        Class<? extends WritableComparable> outputKeyClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputKeyClass))
                .asSubclass(WritableComparable.class);
        Class<? extends Writable> outputValueClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputValueClass))
                .asSubclass(Writable.class);
        conf.setMapOutputKeyClass(outputKeyClass);
        conf.setMapOutputValueClass(outputValueClass);

        conf.setOutputKeyClass(Text.class);

        conf.setOutputValueClass(TextArrayWritable.class);
        conf.setOutputFormat(CSVFileOutputFormat.class);

        String outputPaths = conf.get(AnalysisProcessorConfiguration.reportfolder) + "/"
                + conf.get(AnalysisProcessorConfiguration.reportfile);
        String temp_outputPaths = getTempOutputDir(outputPaths);

        if (this.inputfiles != null) {
            log.debug("inputPaths:" + inputfiles);
            FileInputFormat.setInputPaths(conf, inputfiles);
            FileOutputFormat.setOutputPath(conf, new Path(temp_outputPaths));
            try {
                JobClient.runJob(conf);
                moveResults(conf, outputPaths, temp_outputPaths);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn("For " + getOutputFileName() + " :JOB fails!");
                log.warn(e);
                e.printStackTrace();
                this.MOVE_DONE = false;
            }

        } else {
            log.warn("For " + getOutputFileName() + " :No input path!");
        }

    } catch (Exception e) {

        log.warn("Job preparation failure!");
        log.warn(e);
        e.printStackTrace();
    }

}

---

From source file:hitune.analysis.mapreduce.processor.HistoryLog.java

License:Apache License

public void run() {
    // TODO Auto-generated method stub
    long timestamp = System.currentTimeMillis();
    JobConf conf = new JobConf(this.conf, HistoryLog.class);
    try {/* ww  w .  j a  v a  2s .  co m*/
        conf.setJobName(this.getClass().getSimpleName() + timestamp);
        conf.setInputFormat(MultiSequenceFileInputFormat.class);
        conf.setMapperClass(HistoryLog.MapClass.class);
        conf.setReducerClass(HistoryLog.ReduceClass.class);
        conf.setOutputKeyClass(Text.class);

        Class<? extends WritableComparable> outputKeyClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputKeyClass))
                .asSubclass(WritableComparable.class);
        Class<? extends Writable> outputValueClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputValueClass))
                .asSubclass(Writable.class);
        conf.setMapOutputKeyClass(outputKeyClass);
        conf.setMapOutputValueClass(outputValueClass);

        conf.setOutputValueClass(TextArrayWritable.class);
        conf.setOutputFormat(CSVFileOutputFormat.class);

        String outputPaths = conf.get(AnalysisProcessorConfiguration.reportfolder) + "/"
                + conf.get(AnalysisProcessorConfiguration.reportfile);
        String temp_outputPaths = getTempOutputDir(outputPaths);

        if (this.inputfiles != null) {
            log.debug("inputPaths:" + inputfiles);
            FileInputFormat.setInputPaths(conf, inputfiles);
            FileOutputFormat.setOutputPath(conf, new Path(temp_outputPaths));

            try {
                JobClient.runJob(conf);
                moveResults(conf, outputPaths, temp_outputPaths);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn("For " + getOutputFileName() + " :JOB fails!");
                log.warn(e);
                e.printStackTrace();
                this.MOVE_DONE = false;
            }

        } else {
            log.warn("For " + getOutputFileName() + " :No input path!");
        }
    } catch (Exception e) {
        log.warn("Job preparation failure!");
        log.warn(e);
        e.printStackTrace();
    }
}

---

From source file:hitune.analysis.mapreduce.processor.InstrumentDataflow.java

License:Apache License

@Override
public void run() {
    // TODO Auto-generated method stub

    long timestamp = System.currentTimeMillis();

    JobConf conf = new JobConf(this.conf, InstrumentDataflow.class);
    try {//  ww w  . ja  v  a 2s  . c o m
        conf.setJobName(this.getClass().getSimpleName() + timestamp);
        conf.setInputFormat(MultiSequenceFileInputFormat.class);
        conf.setMapperClass(InstrumentDataflow.MapClass.class);
        conf.setReducerClass(InstrumentDataflow.ReduceClass.class);
        conf.setOutputKeyClass(Text.class);
        Class<? extends WritableComparable> outputKeyClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputKeyClass))
                .asSubclass(WritableComparable.class);
        Class<? extends Writable> outputValueClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputValueClass))
                .asSubclass(Writable.class);
        conf.setMapOutputKeyClass(outputKeyClass);
        conf.setMapOutputValueClass(outputValueClass);

        conf.setOutputValueClass(TextArrayWritable.class);
        conf.setOutputFormat(CSVFileOutputFormat.class);

        String outputPaths = conf.get(AnalysisProcessorConfiguration.reportfolder) + "/"
                + conf.get(AnalysisProcessorConfiguration.reportfile);
        String temp_outputPaths = getTempOutputDir(outputPaths);

        if (this.inputfiles != null) {
            log.debug("inputPaths:" + inputfiles);
            FileInputFormat.setInputPaths(conf, inputfiles);
            FileOutputFormat.setOutputPath(conf, new Path(temp_outputPaths));

            //FileInputFormat.setInputPathFilter(conf, evtFileFilter.class);
            //conf.setNumReduceTasks(1);

            try {
                JobClient.runJob(conf);
                moveResults(conf, outputPaths, temp_outputPaths);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn("For " + getOutputFileName() + " :JOB fails!");
                log.warn(e);
                e.printStackTrace();
                this.MOVE_DONE = false;
            }

        } else {
            log.warn("For " + getOutputFileName() + " :No input path!");
        }
    } catch (Exception e) {
        log.warn("Job preparation failure!");
        log.warn(e);
        e.printStackTrace();
    }
}

---

From source file:hitune.analysis.mapreduce.processor.InstrumentSamplingTop.java

License:Apache License

@Override
public void run() {
    // TODO Auto-generated method stub
    long timestamp = System.currentTimeMillis();
    try {/*ww w  .jav  a  2  s  .  co  m*/
        JobConf conf = new JobConf(this.conf, InstrumentSamplingTop.class);
        conf.setJobName(this.getClass().getSimpleName() + "_1_" + timestamp);

        conf.setInputFormat(MultiSequenceFileInputFormat.class);
        conf.setMapperClass(InstrumentSamplingTop.MapClass.class);
        conf.setReducerClass(InstrumentSamplingTop.ReduceClass.class);

        Class<? extends WritableComparable> outputKeyClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputKeyClass))
                .asSubclass(WritableComparable.class);
        Class<? extends Writable> outputValueClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputValueClass))
                .asSubclass(Writable.class);
        conf.setMapOutputKeyClass(outputKeyClass);
        conf.setMapOutputValueClass(outputValueClass);
        conf.setOutputKeyClass(outputKeyClass);
        conf.setOutputValueClass(outputValueClass);

        conf.setOutputFormat(SequenceFileOutputFormat.class);

        String outputPaths = conf.get(AnalysisProcessorConfiguration.reportfolder) + "/"
                + conf.get(AnalysisProcessorConfiguration.reportfile);

        String temp_outputPaths = getTempOutputDir(outputPaths);

        if (this.inputfiles != null) {
            log.debug("inputPaths:" + inputfiles);
            FileInputFormat.setInputPaths(conf, inputfiles);
            FileOutputFormat.setOutputPath(conf, new Path(outputPaths + "_1_" + timestamp));

            try {

                //first job
                JobClient.runJob(conf);

                JobConf secondconf = new JobConf(this.conf, InstrumentSamplingTop.class);
                secondconf.setJobName(this.getClass().getSimpleName() + "_2_" + timestamp);
                secondconf.setInputFormat(SequenceFileInputFormat.class);
                secondconf.setMapperClass(IdentityMapper.class);
                secondconf.setReducerClass(InstrumentSamplingTop.TopClass.class);

                secondconf.setMapOutputKeyClass(outputKeyClass);
                secondconf.setMapOutputValueClass(outputValueClass);

                secondconf.setOutputKeyClass(Text.class);
                secondconf.setOutputValueClass(TextArrayWritable.class);
                secondconf.setOutputFormat(CSVFileOutputFormat.class);
                FileInputFormat.setInputPaths(secondconf, outputPaths + "_1_" + timestamp);
                FileOutputFormat.setOutputPath(secondconf, new Path(temp_outputPaths));

                //second job to get ranking list
                JobClient.runJob(secondconf);
                moveResults(secondconf, outputPaths, temp_outputPaths);
                Path temp = new Path(outputPaths + "_1_" + timestamp);
                temp.getFileSystem(conf).delete(temp);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn("For " + getOutputFileName() + " :JOB fails!");
                log.warn(e);
                e.printStackTrace();
                this.MOVE_DONE = false;
            }

        } else {
            log.warn("For " + getOutputFileName() + " :No input path!");
        }
    } catch (Exception e) {
        log.warn("Job preparation failure!");
        log.warn(e);
        e.printStackTrace();
    }

}

---

From source file:hitune.analysis.mapreduce.processor.SystemLog.java

License:Apache License

@Override
public void run() {

    // TODO Auto-generated method stub
    long timestamp = System.currentTimeMillis();
    JobConf conf = new JobConf(this.conf, SystemLog.class);

    try {/*from   ww w. j av a2  s . co  m*/
        conf.setJobName(this.getClass().getSimpleName() + timestamp);

        conf.setInputFormat(MultiSequenceFileInputFormat.class);
        conf.setMapperClass(SystemLog.MapClass.class);
        conf.setReducerClass(SystemLog.ReduceClass.class);

        Class<? extends WritableComparable> outputKeyClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputKeyClass))
                .asSubclass(WritableComparable.class);
        Class<? extends Writable> outputValueClass = Class
                .forName(conf.get(AnalysisProcessorConfiguration.mapoutputValueClass))
                .asSubclass(Writable.class);
        conf.setMapOutputKeyClass(outputKeyClass);
        conf.setMapOutputValueClass(outputValueClass);

        conf.setOutputKeyClass(Text.class);

        conf.setOutputValueClass(TextArrayWritable.class);
        conf.setOutputFormat(CSVFileOutputFormat.class);

        String outputPaths = conf.get(AnalysisProcessorConfiguration.reportfolder) + "/"
                + conf.get(AnalysisProcessorConfiguration.reportfile);
        String temp_outputPaths = getTempOutputDir(outputPaths);

        if (this.inputfiles != null) {
            log.debug("inputPaths:" + inputfiles);
            FileInputFormat.setInputPaths(conf, inputfiles);
            FileOutputFormat.setOutputPath(conf, new Path(temp_outputPaths));
            try {
                JobClient.runJob(conf);
                moveResults(conf, outputPaths, temp_outputPaths);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn("For " + getOutputFileName() + " :JOB fails!");
                log.warn(e);
                e.printStackTrace();
                this.MOVE_DONE = false;
            }

        } else {
            log.warn("For " + getOutputFileName() + " :No input path!");

        }

    } catch (Exception e) {
        log.warn("Job preparation failure!");
        log.warn(e);
        e.printStackTrace();
    }

}

---

From source file:io.aos.t4f.hadoop.mapred.WordCountTest.java

License:Apache License

private JobConf createJobConf() {
    JobConf conf = mrCluster.createJobConf();
    conf.setJobName("wordcount test");

    conf.setMapperClass(WordCountMapper.class);
    conf.setReducerClass(WordCountReducer.class);

    conf.setInputFormat(TextInputFormat.class);
    conf.setMapOutputKeyClass(Text.class);
    conf.setMapOutputValueClass(IntWritable.class);
    conf.setOutputKeyClass(Text.class);
    conf.setOutputValueClass(IntWritable.class);
    conf.setNumMapTasks(1);//from w w  w. j a  v  a 2s . c o  m
    conf.setNumReduceTasks(1);
    FileInputFormat.setInputPaths(conf, input);
    FileOutputFormat.setOutputPath(conf, output);
    return conf;
}

---

From source file:io.fluo.stress.trie.Unique.java

License:Apache License

@Override
public int run(String[] args) throws Exception {

    if (args.length < 1) {
        log.error("Usage: " + this.getClass().getSimpleName() + "<input dir>{ <input dir>}");
        System.exit(-1);/*from www  .  ja va 2 s  .  c o  m*/
    }

    JobConf job = new JobConf(getConf());

    job.setJobName(Unique.class.getName());
    job.setJarByClass(Unique.class);

    job.setInputFormat(SequenceFileInputFormat.class);
    for (String arg : args) {
        SequenceFileInputFormat.addInputPath(job, new Path(arg));
    }

    job.setMapOutputKeyClass(LongWritable.class);
    job.setMapOutputValueClass(NullWritable.class);

    job.setReducerClass(UniqueReducer.class);

    job.setOutputFormat(NullOutputFormat.class);

    RunningJob runningJob = JobClient.runJob(job);
    runningJob.waitForCompletion();
    numUnique = (int) runningJob.getCounters().getCounter(Stats.UNIQUE);

    log.debug("numUnique : " + numUnique);

    return runningJob.isSuccessful() ? 0 : -1;

}

---

From source file:ivory.core.preprocess.BuildTargetLangWeightedIntDocVectors.java

License:Apache License

@SuppressWarnings("deprecation")
public int runTool() throws Exception {
    //      sLogger.setLevel(Level.DEBUG);

    sLogger.info("PowerTool: GetTargetLangWeightedIntDocVectors");

    JobConf conf = new JobConf(BuildTargetLangWeightedIntDocVectors.class);
    FileSystem fs = FileSystem.get(conf);

    String indexPath = getConf().get("Ivory.IndexPath");

    RetrievalEnvironment env = new RetrievalEnvironment(indexPath, fs);

    String outputPath = env.getWeightedIntDocVectorsDirectory();
    int mapTasks = getConf().getInt("Ivory.NumMapTasks", 0);
    int minSplitSize = getConf().getInt("Ivory.MinSplitSize", 0);
    String collectionName = getConf().get("Ivory.CollectionName");

    sLogger.info("Characteristics of the collection:");
    sLogger.info(" - CollectionName: " + collectionName);
    sLogger.info("Characteristics of the job:");
    sLogger.info(" - NumMapTasks: " + mapTasks);
    sLogger.info(" - MinSplitSize: " + minSplitSize);

    String vocabFile = getConf().get("Ivory.FinalVocab");
    DistributedCache.addCacheFile(new URI(vocabFile), conf);

    Path inputPath = new Path(PwsimEnvironment.getFileNameWithPars(indexPath, "TermDocs"));
    Path weightedVectorsPath = new Path(outputPath);

    if (fs.exists(weightedVectorsPath)) {
        sLogger.info("Output path already exists!");
        return -1;
    }/*from  www  . ja v  a  2  s.c o  m*/
    conf.setJobName("GetWeightedIntDocVectors:" + collectionName);
    conf.setNumMapTasks(mapTasks);
    conf.setNumReduceTasks(0);
    conf.setInt("mapred.min.split.size", minSplitSize);
    conf.set("mapred.child.java.opts", "-Xmx2048m");
    conf.setBoolean("Ivory.Normalize", getConf().getBoolean("Ivory.Normalize", false));
    FileInputFormat.setInputPaths(conf, inputPath);
    FileOutputFormat.setOutputPath(conf, weightedVectorsPath);

    conf.setInputFormat(SequenceFileInputFormat.class);
    conf.setMapOutputKeyClass(IntWritable.class);
    conf.setMapOutputValueClass(WeightedIntDocVector.class);
    conf.setOutputFormat(SequenceFileOutputFormat.class);
    conf.setOutputKeyClass(IntWritable.class);
    conf.setOutputValueClass(WeightedIntDocVector.class);

    conf.setMapperClass(MyMapper.class);

    long startTime = System.currentTimeMillis();

    RunningJob rj = JobClient.runJob(conf);
    sLogger.info("Job Finished in " + (System.currentTimeMillis() - startTime) / 1000.0 + " seconds");
    Counters counters = rj.getCounters();

    long numOfDocs = (long) counters.findCounter(Docs.Total).getCounter();

    return (int) numOfDocs;
}

---

From source file:ivory.core.preprocess.BuildWeightedIntDocVectors.java

License:Apache License

@SuppressWarnings("deprecation")
public int runTool() throws Exception {
    sLogger.setLevel(Level.WARN);

    sLogger.info("PowerTool: GetWeightedIntDocVectors");

    // create a new JobConf, inheriting from the configuration of this
    // PowerTool//from  w  ww  .ja v  a 2 s .  c om
    JobConf conf = new JobConf(getConf(), BuildWeightedIntDocVectors.class);
    FileSystem fs = FileSystem.get(conf);

    String indexPath = conf.get("Ivory.IndexPath");
    RetrievalEnvironment env = new RetrievalEnvironment(indexPath, fs);
    String outputPath = env.getWeightedIntDocVectorsDirectory();
    int mapTasks = conf.getInt("Ivory.NumMapTasks", 0);
    int minSplitSize = conf.getInt("Ivory.MinSplitSize", 0);
    String collectionName = conf.get("Ivory.CollectionName");

    sLogger.info("Characteristics of the collection:");
    sLogger.info(" - CollectionName: " + collectionName);
    sLogger.info("Characteristics of the job:");
    sLogger.info(" - NumMapTasks: " + mapTasks);
    sLogger.info(" - MinSplitSize: " + minSplitSize);

    String dfByIntFilePath = env.getDfByIntData();
    String cfByIntFilePath = env.getCfByIntData();

    /* add df table to cache */
    if (!fs.exists(new Path(dfByIntFilePath))) {
        throw new RuntimeException("Error, df data file " + dfByIntFilePath + "doesn't exist!");
    }
    DistributedCache.addCacheFile(new URI(dfByIntFilePath), conf);

    /* add cf table to cache */
    if (!fs.exists(new Path(cfByIntFilePath))) {
        throw new RuntimeException("Error, cf data file " + cfByIntFilePath + "doesn't exist!");
    }
    DistributedCache.addCacheFile(new URI(cfByIntFilePath), conf);

    /* add dl table to cache */
    Path docLengthFile = env.getDoclengthsData();
    if (!fs.exists(docLengthFile)) {
        throw new RuntimeException("Error, doc-length data file " + docLengthFile + "doesn't exist!");
    }
    DistributedCache.addCacheFile(docLengthFile.toUri(), conf);

    Path inputPath = new Path(env.getIntDocVectorsDirectory());
    Path weightedVectorsPath = new Path(outputPath);

    if (fs.exists(weightedVectorsPath)) {
        sLogger.info("Output path already exists!");
        return 0;
    }

    //fs.delete(weightedVectirsPath, true);

    conf.setJobName("GetWeightedIntDocVectors:" + collectionName);
    conf.setNumMapTasks(mapTasks);
    conf.setNumReduceTasks(0);
    conf.setInt("mapred.min.split.size", minSplitSize);
    conf.set("mapred.child.java.opts", "-Xmx2048m");

    FileInputFormat.setInputPaths(conf, inputPath);
    FileOutputFormat.setOutputPath(conf, weightedVectorsPath);

    conf.setInputFormat(SequenceFileInputFormat.class);
    conf.setMapOutputKeyClass(IntWritable.class);
    conf.setMapOutputValueClass(WeightedIntDocVector.class);
    conf.setOutputFormat(SequenceFileOutputFormat.class);
    conf.setOutputKeyClass(IntWritable.class);
    conf.setOutputValueClass(WeightedIntDocVector.class);

    conf.setMapperClass(MyMapper.class);
    //conf.setInt("mapred.task.timeout",3600000);

    long startTime = System.currentTimeMillis();

    RunningJob job = JobClient.runJob(conf);
    sLogger.info("Job Finished in " + (System.currentTimeMillis() - startTime) / 1000.0 + " seconds");

    return 0;
}

---

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