Java GridHadoopShuffleJob.reducersInitialized Examples

Example #1

  /**
   * @param jobId Task info.
   * @return Shuffle job.
   */
  private GridHadoopShuffleJob<UUID> job(GridHadoopJobId jobId) throws GridException {
    GridHadoopShuffleJob<UUID> res = jobs.get(jobId);

    if (res == null) {
      res = newJob(jobId);

      GridHadoopShuffleJob<UUID> old = jobs.putIfAbsent(jobId, res);

      if (old != null) {
        res.close();

        res = old;
      } else if (res.reducersInitialized()) startSending(res);
    }

    return res;
  }