Quartz scheduler: JOB Выполняется более одного раза

Question

Я использую планировщик кварца, чтобы запланировать свою работу. Я использовал CronTrigger. Но проблема в том, что триггер срабатывает еще один раз. Вот мой код, чтобы настроить хроны планировщика ..

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());  
     } 

Вот мой планировщик выполняет задание в 10 раз ... Здесь Вы можете просматривать журналы ..

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-------------------- 

Как я могу установить CronTimer итератор до 1? ИЛИ Как я могу остановить планировщик на выполнение задания более одного раза.

Любое предложение? Thanks, Gunjan Shah.

Answer 1

Я получил решение ..

хрон синтаксис я использовал это: String cronTimerStr = "* 16 15 * * *";

Здесь в 15:16, Quartz будет инициализировать всех возможных сотрудников каждую секунду. Так что скажем в течение одной минуты (@ 16 минут и 60 секунд), он будет инициализировать максимум 60 потоков.

Я установил второй параметр в ноль. Итак, новый синтаксис «0 16 15 * *? *».

Теперь он отлично работает.

Thanks, Gunjan Shah.