石英調度程序：JOB執行多次

Question

我使用石英調度程序來安排我的工作。我用過CronTrigger。但問題在於觸發器會被解僱一次。這裏是我的代碼來設置cron調度..

SchedulerFactory schFactory = new StdSchedulerFactory(); 
     Scheduler sched = null; 
     CronTrigger cronTrigger = null; 
     try { 
      sched = schFactory.getScheduler(); 
      JobDetail jobDetail = new JobDetail("job1", "group1",SchedulerPBGC.class); 

      String cronTimerStr = "* 16 15 * * ? *"; 

      LOG.warn("CRON TRIGGER FORMAT FOR PROCESSING PB GC DATA:"+cronTimerStr); 

      cronTrigger = new CronTrigger("SchedTrigger", "Group1", cronTimerStr); 


      sched.scheduleJob(jobDetail, cronTrigger);   
      sched.start(); 

      LOG.warn("SCHEDULER REGISTERED FOR PROCESSING PB GC DATA : TIME :"+cronTimerStr);   

     } catch (SchedulerException se) { 
      LOG.error("SchedulerException Message::"+se.getLocalizedMessage());  
     } 

這裏我調度執行作業的10倍......在這裏，你可以看到日誌..

2012-06-20 15:16:50,001 DefaultQuartzScheduler_Worker-1 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:50,001 DefaultQuartzScheduler_Worker-1 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:50,001 DefaultQuartzScheduler_Worker-1 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:51,001 DefaultQuartzScheduler_Worker-2 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:51,001 DefaultQuartzScheduler_Worker-2 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:51,001 DefaultQuartzScheduler_Worker-2 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:52,001 DefaultQuartzScheduler_Worker-3 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:52,001 DefaultQuartzScheduler_Worker-3 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:52,001 DefaultQuartzScheduler_Worker-3 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:53,001 DefaultQuartzScheduler_Worker-4 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:53,001 DefaultQuartzScheduler_Worker-4 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:53,001 DefaultQuartzScheduler_Worker-4 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:54,001 DefaultQuartzScheduler_Worker-5 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:54,001 DefaultQuartzScheduler_Worker-5 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:54,001 DefaultQuartzScheduler_Worker-5 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:55,001 DefaultQuartzScheduler_Worker-6 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:55,001 DefaultQuartzScheduler_Worker-6 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:55,001 DefaultQuartzScheduler_Worker-6 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:56,001 DefaultQuartzScheduler_Worker-7 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:56,001 DefaultQuartzScheduler_Worker-7 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:56,001 DefaultQuartzScheduler_Worker-7 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:57,001 DefaultQuartzScheduler_Worker-8 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:57,001 DefaultQuartzScheduler_Worker-8 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:57,001 DefaultQuartzScheduler_Worker-8 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:58,001 DefaultQuartzScheduler_Worker-9 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:58,001 DefaultQuartzScheduler_Worker-9 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:58,001 DefaultQuartzScheduler_Worker-9 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED----------------------- 
2012-06-20 15:16:59,001 DefaultQuartzScheduler_Worker-10 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION STARTED----------------------- 
2012-06-20 15:16:59,001 DefaultQuartzScheduler_Worker-10 WARN test.SchedulerPBGC - The value of NO_OF_BEFORE_DAY_TO_RUN must be less then zero ..to start the scheduler 
2012-06-20 15:16:59,001 DefaultQuartzScheduler_Worker-10 WARN test.SchedulerPBGC - ----------PB GC SCHEDULER EXECUTION COMPLETED-------------------- 

如何設置的CronTimer迭代器爲1？或者如何停止調度程序多次執行作業。

有什麼建議嗎？ 謝謝， Gunjan Shah。

Answer 1

我得到的溶液..

我已經使用這個cron語法是：字符串cronTimerStr = 「？* 16 15 * * *」;

在15:16的時候，Quartz會每秒鐘初始化所有可能的工作人員。因此，讓我們說在一分鐘內（@ 16分鐘和60秒），它將初始化最多60個線程。

我將第二個參數設置爲零。 所以新的語法是「0 16 15 * *？*」。

現在它工作正常。

謝謝， Gunjan Shah。