code: public boolean startDistRaid() throws IOException {
      assert(raidPolicyPathPairList.size() > 0);
      if (setup()) {
        this.jobClient = new JobClient(jobconf);
        this.runningJob = this.jobClient.submitJob(jobconf);
        LOG.info("Job Started: " + runningJob.getID());
        this.startTime = System.currentTimeMillis();
        return true;
      }
      return false;
    }
docs: Invokes a map-reduce job do parallel raiding.
  @return true if the job was started, false otherwise