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

List of usage examples for org.apache.hadoop.mapred JobConf setMapOutputKeyClass

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Introduction

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

Prototype

public void setMapOutputKeyClass(Class<?> theClass)

Source Link

Document

Set the key class for the map output data.

Usage

From source file:hibench.HiveDataGenerator.java

License:Apache License

private void createRankingsTable() throws IOException {

    LOG.info("Creating table rankings...");

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

    job.setJobName(jobname);//from w  w  w  .  ja  v a2s  .  c  o m

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

    job.setCombinerClass(ConcatTextCombiner.class);
    job.setReducerClass(CountRankingAndReplaceIdReducer.class);

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

    //      job.setNumReduceTasks(options.agents/2);

    /***
     * need to join result with LINK table so that to replace
     * url ids with real contents
     */
    MultipleInputs.addInputPath(job, paths.getPath(DataPaths.T_LINK_PAGE), TextInputFormat.class,
            MyIdentityMapper.class);
    MultipleInputs.addInputPath(job, paths.getPath(DataPaths.LINKS), TextInputFormat.class,
            TagRecordsMapper.class);

    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.RANKINGS));

    LOG.info("Running Job: " + jobname);
    LOG.info("Table link-page file " + paths.getPath(DataPaths.T_LINK_PAGE) + " as input");
    LOG.info("Links file " + paths.getResult(DataPaths.LINKS) + " as output");
    LOG.info("Ouput file " + paths.getResult(DataPaths.RANKINGS));
    JobClient.runJob(job);
    LOG.info("Finished Running Job: " + jobname);

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

From source file:hibench.HiveDataGenerator.java

License:Apache License

private void createUserVisitsTable() throws IOException, URISyntaxException {

    LOG.info("Creating user visits...");

    JobConf job = new JobConf(WebDataGen.class);
    String jobname = "Create " + paths.dname + " uservisits";
    job.setJobName(jobname);/*from w w  w.j  a v  a2 s . c o  m*/

    /***
     * Set distributed cache file for table generation,
     * cache files include:
     * 1. user agents
     * 2. country code and language code
     * 3. search keys
     */

    DistributedCache.addCacheFile(paths.getPath(DataPaths.uagentf).toUri(), job);
    DistributedCache.addCacheFile(paths.getPath(DataPaths.countryf).toUri(), job);
    DistributedCache.addCacheFile(paths.getPath(DataPaths.searchkeyf).toUri(), job);

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

    visit.setJobConf(job);

    job.setInputFormat(TextInputFormat.class);

    MultipleInputs.addInputPath(job, paths.getPath(DataPaths.DUMMY), NLineInputFormat.class,
            CreateRandomAccessMapper.class);
    MultipleInputs.addInputPath(job, paths.getPath(DataPaths.LINKS), TextInputFormat.class,
            TagRecordsMapper.class);

    job.setCombinerClass(CreateUserVisitsCombiner.class);
    job.setReducerClass(CreateUserVisitsReducer.class);

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

    //      job.setNumReduceTasks(options.agents/2);

    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.USERVISITS));

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

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

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);//w  ww  .  j av a2  s . c  o m

    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));
}

From source file:hibench.PageRankDataGenerator.java

License:Apache License

/***
 * Create pagerank edge table, output link A->B as <A, B> pairs
 * @throws IOException/*  www  . java2  s .  c  om*/
 */
private void createPageRankLinks() throws IOException {

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

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

    job.setJobName(jobname);

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

    job.setNumReduceTasks(0);

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

    job.setMapperClass(OutputLinkEdgesMapper.class);

    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.EDGES));

    LOG.info("Running Job: " + jobname);
    LOG.info("Table link-page " + paths.getPath(DataPaths.T_LINK_PAGE) + " as input");
    LOG.info("Edges file " + paths.getResult(DataPaths.EDGES) + " as output");
    JobClient.runJob(job);
    LOG.info("Finished Running Job: " + jobname);

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

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 {/*w  ww . j av a2s .c o  m*/
        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 {// w  w w  . j  a  v a  2 s.  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 {/*from w  w  w .java  2 s . com*/
        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 {/*from  ww w . j  a  va  2  s  .  c o  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 w ww  .jav  a 2s.  c o 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);// ww w.  j  a v  a 2  s . co  m
    conf.setNumReduceTasks(1);
    FileInputFormat.setInputPaths(conf, input);
    FileOutputFormat.setOutputPath(conf, output);
    return conf;
}