Example usage for org.apache.hadoop.mapreduce.lib.output FileOutputFormat setOutputPath

List of usage examples for org.apache.hadoop.mapreduce.lib.output FileOutputFormat setOutputPath

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Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce.lib.output FileOutputFormat setOutputPath.

Prototype

public static void setOutputPath(Job job, Path outputDir)

Source Link

Document

Set the Path of the output directory for the map-reduce job.

Usage

From source file:com.conversantmedia.mapreduce.example.WordCount.java

License:Apache License

public static void main(String[] args) {

    try {/*  w  w w  .j  a  v  a 2s.com*/
        Job job = Job.getInstance(new Configuration(), "WordCount v2");

        job.setInputFormatClass(FileInputFormat.class);
        job.setOutputFormatClass(FileOutputFormat.class);

        job.setMapperClass(WordCountMapper.class);
        job.setReducerClass(WordCountReducer.class);
        job.setCombinerClass(WordCountReducer.class);

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

        FileInputFormat.addInputPath(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));

        job.waitForCompletion(true);

    } catch (IOException | ClassNotFoundException | InterruptedException e) {
        e.printStackTrace();
    }
}

From source file:com.conversantmedia.mapreduce.tool.annotation.handler.FileOutputAnnotationHandler.java

License:Apache License

private void configureFileOutputPaths(Job job, Object value)
        throws IllegalArgumentException, IllegalAccessException, IOException, ToolException {
    if (value == null) {
        throw new ToolException("Output path property is null.");
    }/*from   w  ww . j  a  va2  s  .  c o  m*/
    if (value instanceof Path) {
        FileOutputFormat.setOutputPath(job, (Path) value);
    } else if (value instanceof String) {
        FileOutputFormat.setOutputPath(job, new Path((String) value));
    } else {
        throw new ToolException("Illegal Path property. Path must be one of type [" + Path.class + ", "
                + Path[].class + ", or java.lang.String]");
    }
}

From source file:com.cqx.mr.MRSearchAuto.java

public void searchHBase(int numOfDays) throws IOException, InterruptedException, ClassNotFoundException {
    long startTime;
    long endTime;

    Configuration conf = HBaseConfiguration.create();
    conf.set("hbase.zookeeper.quorum", "node2,node3,node4");
    conf.set("fs.default.name", "hdfs://node1");
    conf.set("mapred.job.tracker", "node1:54311");
    /*/* ww  w.  j  a va 2 s . c o  m*/
     * ?map
     */
    conf.set("search.license", "C87310");
    conf.set("search.color", "10");
    conf.set("search.direction", "2");

    Job job = new Job(conf, "MRSearchHBase");
    System.out.println("search.license: " + conf.get("search.license"));
    job.setNumReduceTasks(0);
    job.setJarByClass(MRSearchAuto.class);
    Scan scan = new Scan();
    scan.addFamily(FAMILY_NAME);
    byte[] startRow = Bytes.toBytes("2011010100000");
    byte[] stopRow;
    switch (numOfDays) {
    case 1:
        stopRow = Bytes.toBytes("2011010200000");
        break;
    case 10:
        stopRow = Bytes.toBytes("2011011100000");
        break;
    case 30:
        stopRow = Bytes.toBytes("2011020100000");
        break;
    case 365:
        stopRow = Bytes.toBytes("2012010100000");
        break;
    default:
        stopRow = Bytes.toBytes("2011010101000");
    }
    // ?key
    scan.setStartRow(startRow);
    scan.setStopRow(stopRow);

    TableMapReduceUtil.initTableMapperJob(TABLE_NAME, scan, SearchMapper.class, ImmutableBytesWritable.class,
            Text.class, job);
    Path outPath = new Path("searchresult");
    HDFS_File file = new HDFS_File();
    file.DelFile(conf, outPath.getName(), true); // 
    FileOutputFormat.setOutputPath(job, outPath);// 

    startTime = System.currentTimeMillis();
    job.waitForCompletion(true);
    endTime = System.currentTimeMillis();
    System.out.println("Time used: " + (endTime - startTime));
    System.out.println("startRow:" + Text.decode(startRow));
    System.out.println("stopRow: " + Text.decode(stopRow));
}

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);// ww w. j a va  2s . c om
    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;/*from   ww w.  ja  v  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 w  w  .  j a v  a  2s  .  co  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  av 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;//from w  ww. j  a v  a  2 s .c  o 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   www . j  a va  2  s . c om*/

}

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 w  w w.  j av  a2  s  .com*/

}