Time taken for Hadoop job to execute

问题

Is there an API to figure out how long a Hadoop job took to execute (exactly -> no hacks.)?

回答1:

I think the simplest way is to measure time in Your driver class. Is it ok for you? I mean something like this:

   long start = new Date().getTime();
   boolean status = job.waitForCompletion(true);            
   long end = new Date().getTime();
   System.out.println("Job took "+(end-start) + "milliseconds");

来源：https://stackoverflow.com/questions/6860987/time-taken-for-hadoop-job-to-execute