How can Hadoop job kill by itself

Is there any way to kill a Hadoop job itself or send a signal to kill it. I've read the Configuration settings from jobConf where it says that if a user specify the wrong settings I need to kill the job or throw an error, since map/reduce config method does not allow throwing an exception.

public void configure(JobConf job) {
    System.out.println("Inside config start processing");
     try {

            String strFileName =  jo开发者_JAVA百科b.get("hadoop.rules");
            LoadFile(strFileName );
     } catch (Exception e) {
         e.printStackTrace();
        //Here i need to write code to kill job
     }
}

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In the configure() method, just throw a RuntimeException.

Better yet, if possible, you're better off performing your validation step before the job is run.

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Just save the state into a boolean variable called kill and evaluate the variable inside the map step and then throw an IOException.