MyResolver.class, DNSToSwitchMapping.class);
RackResolver.init(configuration);
MRApp app = new MRAppWithHistory(1, 1, true, this.getClass().getName(),
true);
app.submit(configuration);
Job job = app.getContext().getAllJobs().values().iterator().next();
JobId jobId = job.getID();
LOG.info("JOBID is " + TypeConverter.fromYarn(jobId).toString());
app.waitForState(job, JobState.SUCCEEDED);