Examples of org.apache.hadoop.mapreduce.Job.addCacheFile()

    job.setMapperClass(DistributedCacheCheckerMapper.class);
    job.setReducerClass(DistributedCacheCheckerReducer.class);
    job.setOutputFormatClass(NullOutputFormat.class);
    FileInputFormat.setInputPaths(job, first);
    // Creates the Job Configuration
    job.addCacheFile(
      new URI(first.toUri().toString() + "#distributed.first.symlink"));
    job.addFileToClassPath(second);
    job.addArchiveToClassPath(third);
    job.addCacheArchive(fourth.toUri());
    job.setMaxMapAttempts(1); // speed up failures

    job.setMapperClass(DistributedCacheChecker.class);
    job.setOutputFormatClass(NullOutputFormat.class);


    FileInputFormat.setInputPaths(job, first);
    // Creates the Job Configuration
    job.addCacheFile(
        new URI(first.toUri().toString() + "#distributed.first.symlink"));
    job.addFileToClassPath(second);
    job.addFileToClassPath(APP_JAR); // The AppMaster jar itself.
    job.addArchiveToClassPath(third);
    job.addCacheArchive(fourth.toUri());

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