Quartz.Net中的長時間運行作業

Question

我在Quartz.Net中有一份工作，它經常觸發，有時會長時間運行，如果作業已經在運行，我該如何取消觸發器？

Answer 1

更標準的方法是使用IInterruptableJob，請參閱http://quartznet.sourceforge.net/faq.html#howtostopjob。當然，這只是另一種說法，如果（！jobRunning）...

Answer 2

當作業開始時你能不能只是設置某種全局變量（jobRunning = true），並且一旦完成就將其恢復爲假？

然後當觸發器觸發，只要運行你的代碼，如果（jobRunning ==假）

Answer 3

您的應用可以從啓動時的工作列表中刪除本身並插入本身關機。

Answer 4

如今，您可以在觸發器中使用「WithMisfireHandlingInstructionIgnoreMisfires」，並在作業中使用[DisallowConcurrentExecution]屬性。

Answer 5

這是我的實現（使用MarkoL先前給出的鏈接上的建議）。

我只是想保存一些打字。

我是Quartz.NET的新手，所以拿下一串鹽。

public class AnInterruptableJob : IJob, IInterruptableJob 
{ 

    private bool _isInterrupted = false; 

    private int MAXIMUM_JOB_RUN_SECONDS = 10; 

    /// <summary> 
    /// Called by the <see cref="IScheduler" /> when a 
    /// <see cref="ITrigger" /> fires that is associated with 
    /// the <see cref="IJob" />. 
    /// </summary> 
    public virtual void Execute(IJobExecutionContext context) 
    { 


     /* See http://aziegler71.wordpress.com/2012/04/25/quartz-net-example/ */ 

     JobKey key = context.JobDetail.Key; 

     JobDataMap dataMap = context.JobDetail.JobDataMap; 

     int timeOutSeconds = dataMap.GetInt("TimeOutSeconds"); 
     if (timeOutSeconds <= 0) 
     { 
      timeOutSeconds = MAXIMUM_JOB_RUN_SECONDS; 
     } 

     Timer t = new Timer(TimerCallback, context, timeOutSeconds * 1000, 0); 


     Console.WriteLine(string.Format("AnInterruptableJob Start : JobKey='{0}', timeOutSeconds='{1}' at '{2}'", key, timeOutSeconds, DateTime.Now.ToLongTimeString())); 


     try 
     { 
      Thread.Sleep(TimeSpan.FromSeconds(7)); 
     } 
     catch (ThreadInterruptedException) 
     { 
     } 


     if (_isInterrupted) 
     { 
      Console.WriteLine("Interrupted. Leaving Excecute Method."); 
      return; 
     } 

     Console.WriteLine(string.Format("End AnInterruptableJob (should not see this) : JobKey='{0}', timeOutSeconds='{1}' at '{2}'", key, timeOutSeconds, DateTime.Now.ToLongTimeString())); 

    } 


    private void TimerCallback(Object o) 
    { 
     IJobExecutionContext context = o as IJobExecutionContext; 

     if (null != context) 
     { 
      context.Scheduler.Interrupt(context.FireInstanceId); 
     } 
    } 

    public void Interrupt() 
    { 
     _isInterrupted = true; 
     Console.WriteLine(string.Format("AnInterruptableJob.Interrupt called at '{0}'", DateTime.Now.ToLongTimeString())); 
    } 
}