job.set("crush.3.regex", ".+/text");
job.set("crush.3.regex.replacement", "fourthregex-${crush.task.num}-${crush.timestamp}-${crush.file.num}");
job.set("crush.3.input.format", TextInputFormat.class.getName());
job.set("crush.3.output.format", TextOutputFormat.class.getName());
reducer = new CrushReducer();
reducer.configure(job);
fs = FileSystem.get(job);
}