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

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

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Introduction

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

Prototype

public void setOutputFormat(Class<? extends OutputFormat> theClass)

Source Link

Document

Set the OutputFormat implementation for the map-reduce job.

Usage

From source file:crimesbytype.CrimesByType.java

public int run(String[] args) throws Exception {
    Configuration conf = getConf();

    JobConf job = new JobConf(conf, CrimesByType.class);

    Path in = new Path(args[0]);
    Path out = new Path(args[1]);
    FileInputFormat.setInputPaths(job, in);
    FileOutputFormat.setOutputPath(job, out);

    job.setJobName("CrimesByType");
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setInputFormat(KeyValueTextInputFormat.class);
    job.setOutputFormat(TextOutputFormat.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(IntWritable.class);
    //   job.set("key.value.separator.in.input.line", "");

    JobClient.runJob(job);/*ww w  .  ja va2s .co m*/

    return 0;
}

From source file:crimesbyweekday.CrimesByWeekDay.java

public int run(String[] args) throws Exception {
    Configuration conf = getConf();

    JobConf job = new JobConf(conf, CrimesByWeekDay.class);

    Path in = new Path(args[0]);
    Path out = new Path(args[1]);
    FileInputFormat.setInputPaths(job, in);
    FileOutputFormat.setOutputPath(job, out);

    job.setJobName("CrimesByWeekDay");
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setInputFormat(KeyValueTextInputFormat.class);
    job.setOutputFormat(TextOutputFormat.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(IntWritable.class);
    //   job.set("key.value.separator.in.input.line", "");

    JobClient.runJob(job);/*from   ww  w  .j  a  va2  s.  co m*/

    return 0;
}

From source file:crimesbyweekdayyear.CrimesByWeekDayYear.java

public int run(String[] args) throws Exception {
    Configuration conf = getConf();

    JobConf job = new JobConf(conf, CrimesByWeekDayYear.class);

    Path in = new Path(args[0]);
    Path out = new Path(args[1]);
    FileInputFormat.setInputPaths(job, in);
    FileOutputFormat.setOutputPath(job, out);

    job.setJobName("CrimesByWeekDayYear");
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setInputFormat(KeyValueTextInputFormat.class);
    job.setOutputFormat(TextOutputFormat.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(IntWritable.class);
    //   job.set("key.value.separator.in.input.line", "");

    JobClient.runJob(job);//from   w w w.  j  a v  a2 s  . co m

    return 0;
}

From source file:crimesprocessingtimes.CrimesProcessingTimes.java

public int run(String[] args) throws Exception {
    Configuration conf = getConf();

    JobConf job = new JobConf(conf, CrimesProcessingTimes.class);

    Path in = new Path(args[0]);
    Path out = new Path(args[1]);
    FileInputFormat.setInputPaths(job, in);
    FileOutputFormat.setOutputPath(job, out);

    job.setJobName("CrimesProcessingTimes");
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setInputFormat(KeyValueTextInputFormat.class);
    job.setOutputFormat(TextOutputFormat.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(IntWritable.class);
    //   job.set("key.value.separator.in.input.line", "");

    JobClient.runJob(job);/*from  w w w.  j  ava 2s.  c  o  m*/

    return 0;
}

From source file:criminaltrespassbytime.CriminalTrespassByTime.java

public int run(String[] args) throws Exception {
    Configuration conf = getConf();

    JobConf job = new JobConf(conf, CriminalTrespassByTime.class);

    Path in = new Path(args[0]);
    Path out = new Path(args[1]);
    FileInputFormat.setInputPaths(job, in);
    FileOutputFormat.setOutputPath(job, out);

    job.setJobName("CriminalTrespassByTime");
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setInputFormat(KeyValueTextInputFormat.class);
    job.setOutputFormat(TextOutputFormat.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(IntWritable.class);
    //   job.set("key.value.separator.in.input.line", "");

    JobClient.runJob(job);//  w w w  . jav  a  2 s .c o  m

    return 0;
}

From source file:crunch.MaxTemperature.java

License:Apache License

@Override
    public int run(String[] args) throws IOException {
        JobConf conf = JobBuilder.parseInputAndOutput(this, getConf(), args);
        if (conf == null) {
            return -1;
        }/*  w w  w  . j a  v  a  2s.co m*/

        /*[*/conf.setInputFormat(TextInputFormat.class);

        conf.setNumMapTasks(1);
        conf.setMapperClass(IdentityMapper.class);
        conf.setMapRunnerClass(MapRunner.class);

        conf.setMapOutputKeyClass(LongWritable.class);
        conf.setMapOutputValueClass(Text.class);

        conf.setPartitionerClass(HashPartitioner.class);

        conf.setNumReduceTasks(1);
        conf.setReducerClass(IdentityReducer.class);

        conf.setOutputKeyClass(LongWritable.class);
        conf.setOutputValueClass(Text.class);

        conf.setOutputFormat(TextOutputFormat.class);/*]*/

        JobClient.runJob(conf);
        return 0;
    }

From source file:crunch.MaxTemperature.java

License:Apache License

@Override
    public int run(String[] args) throws IOException {
        JobConf conf = JobBuilder.parseInputAndOutput(this, getConf(), args);
        if (conf == null) {
            return -1;
        }//from  ww  w .  ja  va  2 s .  com

        conf.setMapperClass(StationMapper.class);
        conf.setMapOutputKeyClass(Text.class);
        conf.setReducerClass(StationReducer.class);
        conf.setOutputKeyClass(NullWritable.class);
        conf.setOutputFormat(StationNameMultipleTextOutputFormat.class);

        JobClient.runJob(conf);
        return 0;
    }

From source file:crunch.MaxTemperature.java

License:Apache License

@Override
    public int run(String[] args) throws IOException {
        JobConf conf = JobBuilder.parseInputAndOutput(this, getConf(), args);
        if (conf == null) {
            return -1;
        }//from w ww  .j av  a  2  s. c o  m

        conf.setMapperClass(StationMapper.class);
        conf.setMapOutputKeyClass(Text.class);
        conf.setReducerClass(MultipleOutputsReducer.class);
        conf.setOutputKeyClass(NullWritable.class);
        conf.setOutputFormat(NullOutputFormat.class); // suppress empty part file

        MultipleOutputs.addMultiNamedOutput(conf, "station", TextOutputFormat.class, NullWritable.class,
                Text.class);

        JobClient.runJob(conf);
        return 0;
    }

From source file:crunch.MaxTemperature.java

License:Apache License

@Override
    public int run(String[] args) throws IOException {
        JobConf conf = JobBuilder.parseInputAndOutput(this, getConf(), args);
        if (conf == null) {
            return -1;
        }/*from  w w w.ja  va  2s.  c  o  m*/

        conf.setInputFormat(WholeFileInputFormat.class);
        conf.setOutputFormat(SequenceFileOutputFormat.class);

        conf.setOutputKeyClass(Text.class);
        conf.setOutputValueClass(BytesWritable.class);

        conf.setMapperClass(SequenceFileMapper.class);
        conf.setReducerClass(IdentityReducer.class);

        JobClient.runJob(conf);
        return 0;
    }

From source file:crunch.MaxTemperature.java

License:Apache License

@Override
    public int run(String[] args) throws IOException {
        JobConf conf = JobBuilder.parseInputAndOutput(this, getConf(), args);
        if (conf == null) {
            return -1;
        }//from w w w . jav a 2s.  c o  m

        conf.setInputFormat(SequenceFileInputFormat.class);
        conf.setOutputKeyClass(IntWritable.class);
        /*[*/conf.setOutputFormat(MapFileOutputFormat.class);/*]*/
        SequenceFileOutputFormat.setCompressOutput(conf, true);
        SequenceFileOutputFormat.setOutputCompressorClass(conf, GzipCodec.class);
        SequenceFileOutputFormat.setOutputCompressionType(conf, CompressionType.BLOCK);

        JobClient.runJob(conf);
        return 0;
    }