Example usage for org.apache.hadoop.mapreduce Job setMapperClass

List of usage examples for org.apache.hadoop.mapreduce Job setMapperClass

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Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce Job setMapperClass.

Prototype

public void setMapperClass(Class<? extends Mapper> cls) throws IllegalStateException

Source Link

Document

Set the Mapper for the job.

Usage

From source file:com.daleway.training.hadoop.condprob.ConditionalProbabilityPairs.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(ConditionalProbabilityPairs.class);
    job.setMapperClass(TokenizerMapper.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setPartitionerClass(ProbDistPartitioner.class);
    job.setReducerClass(IntSumReducer.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(IntWritable.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    job.setNumReduceTasks(5);//from   w w w.ja va2s . com
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;

}

From source file:com.daleway.training.hadoop.condprob.ConditionalProbabilityPairsSecondarySort.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(ConditionalProbabilityPairsSecondarySort.class);
    job.setMapperClass(TokenizerMapper.class);
    job.setSortComparatorClass(KeyComparator.class);
    job.setGroupingComparatorClass(GroupComparator.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setPartitionerClass(ProbDistPartitioner.class);
    job.setReducerClass(IntSumReducer.class);
    job.setOutputKeyClass(Text.class);
    //Is the output value class for Map or Reduce ?
    job.setOutputValueClass(Text.class);
    //job.setNumReduceTasks(5);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;/*  w ww  . jav  a2  s .  c  om*/
}

From source file:com.daleway.training.hadoop.condprob.ConditionalProbabilityPairWordExtractor.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(ConditionalProbabilityPairWordExtractor.class);
    job.setMapperClass(TokenizerMapper.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;//from  w  ww. j av  a 2 s .  c o  m

}

From source file:com.daleway.training.hadoop.condprob.ConditionalProbabilityStripes.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(ConditionalProbabilityStripes.class);
    job.setMapperClass(TokenizerMapper.class);
    // job.setCombinerClass(IntSumReducer.class);
    job.setPartitionerClass(ProbDistPartitioner.class);
    job.setReducerClass(IntSumReducer.class);

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

    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);

    job.setNumReduceTasks(5);//from  www  .  j  a v  a 2 s  .c om
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;
}

From source file:com.daleway.training.hadoop.pagerank.PageRankAdjList.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(PageRankAdjList.class);
    job.setMapperClass(PageRankMapper.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setReducerClass(PageRankReducer.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;/*  w w  w.j a  va  2 s .co  m*/

}

From source file:com.daleway.training.hadoop.pagerank.PageRankCalcDanglingNodeMass.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(PageRankCalcDanglingNodeMass.class);
    job.setMapperClass(PageRankMapper.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setReducerClass(PageRankReducer.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;/*from  w  w  w.ja v  a 2s  . c o  m*/

}

From source file:com.daleway.training.hadoop.pagerank.PageRankComplete.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(PageRankComplete.class);
    job.setMapperClass(PageRankMapper.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setReducerClass(PageRankReducer.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;//from   ww w  . ja v  a 2 s .co m

}

From source file:com.daleway.training.hadoop.pagerank.PageRankSecondarySort.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(PageRankSecondarySort.class);
    job.setMapperClass(TokenizerMapper.class);
    job.setReducerClass(IntSumReducer.class);
    job.setMapOutputKeyClass(LongWritable.class);
    job.setMapOutputValueClass(Text.class);
    job.setSortComparatorClass(LongWritable.DecreasingComparator.class);
    job.setMaxReduceAttempts(1);/* www.  j a va2s. c  om*/
    job.setNumReduceTasks(1);

    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;
}

From source file:com.daleway.training.hadoop.pagerank.PageRankSimple.java

License:Apache License

public static Job createJob(Configuration conf, String inputPath, String outputPath) throws IOException {
    Job job = new Job(conf, "pair wise count");
    job.setJarByClass(PageRankSimple.class);
    job.setMapperClass(PageRankMapper.class);
    //job.setCombinerClass(IntSumReducer.class);
    job.setReducerClass(PageRankReducer.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    FileInputFormat.addInputPath(job, new Path(inputPath));
    FileOutputFormat.setOutputPath(job, new Path(outputPath));
    return job;//from  w  w w.  j a va 2 s .co  m

}

From source file:com.datasalt.pangool.benchmark.secondarysort.HadoopSecondarySort.java

License:Apache License

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: secondarysrot <in> <out>");
        System.exit(2);/*from   w w w  .j a  va 2s  . c  om*/
    }
    Job job = new Job(conf, "Hadoop Secondary Sort");
    FileSystem fS = FileSystem.get(conf);
    fS.delete(new Path(otherArgs[1]), true);

    job.setJarByClass(HadoopSecondarySort.class);
    job.setMapperClass(MapClass.class);
    job.setReducerClass(Reduce.class);

    job.setPartitionerClass(KeyPartitioner.class);
    job.setGroupingComparatorClass(GroupingComparator.class);

    job.setMapOutputKeyClass(ComplexType.class);
    job.setMapOutputValueClass(DoubleWritable.class);

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

    FileInputFormat.addInputPath(job, new Path(otherArgs[0]));
    FileOutputFormat.setOutputPath(job, new Path(otherArgs[1]));
    job.waitForCompletion(true);
}