mapreduce输出如何指定分隔符？

  2. Configuration config = HBaseConfiguration.create();
  4. config.set("mapred.textoutputformat.ignoreseparator","true");
  5. config.set("mapred.textoutputformat.separator",";");

mapreduce多job并行？

  1. import org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob;
  2. import org.apache.hadoop.mapreduce.lib.jobcontrol.JobControl;
  4. //总控制器
  5. JobControl jobControl = new JobControl("tele");
  7. //第一个job
  8. ControlledJob cjb1 = new ControlledJob(job.getConfiguration());
  9. jobControl.addJob(cjb1);
  11. //第二个job
  12. ControlledJob cjb2 = new ControlledJob(callerTimeJob.getConfiguration());
  13. jobControl.addJob(cjb2);
  15. //开启线程执行jobControl
  16. Thread jcThread = new Thread(jobControl);
  17. jcThread.start();
  19. //等待所有job完成
  20. while (true) {
  21.     //当job池里所有的job完成后,执行 下一步操作
  22.     if (jobControl.allFinished()) {
  23.         System.out.println(jobControl.getSuccessfulJobList());
  24.         jobControl.stop();
  25.         break;
  26.     }
  28.     //获取执行失败的job列表
  29.     if (jobControl.getFailedJobList().size() > 0) {
  30.         System.out.println(jobControl.getFailedJobList());
  31.         jobControl.stop();
  32.         break;
  33.     }
  34. }

reduce结果如何输出到mysql？

Job如何定时执行？