Jobs Firing Multiple Times

Version: 2.6.0

Expected behavior

Jobs scheduled in global.asax should fire one time each at the time specified in their triggers

Actual behavior

Jobs fire multiple times, seemingly increasing each time I add a new job to my application.

Steps to reproduce

Application_Start()
{
...
var properties = new NameValueCollection { { "quartz.threadPool.threadCount", "1" } };
ISchedulerFactory schedFact = new StdSchedulerFactory(properties);
IScheduler sched = (IScheduler)schedFact.GetScheduler();
sched.Clear();
sched.Start();

IJobDetail dailyEmailJob = JobBuilder.Create<DailyEmails>().WithIdentity("DailyEmailJob").Build();
ITrigger dailyEmailTrigger = TriggerBuilder.Create().WithIdentity("DailyEmailTrigger").WithSchedule(CronScheduleBuilder.DailyAtHourAndMinute(12, 05)).ForJob(dailyEmailJob).Build();

IJobDetail scheduledMaintenanceJob = JobBuilder.Create<ScheduledMaintenance>().WithIdentity("ScheduledMaintenanceJob").Build();
ITrigger scheduledMaintenanceTrigger = TriggerBuilder.Create().WithIdentity("ScheduledMaintenanceTrigger").WithSchedule(CronScheduleBuilder.DailyAtHourAndMinute(1, 0)).ForJob(scheduledMaintenanceJob).Build();

IJobDetail resourceAnalysisJob = JobBuilder.Create<ResourceAnalysis>().WithIdentity("ResourceAnalysisJob").Build();
ITrigger resourceAnalysisTrigger = TriggerBuilder.Create().WithSchedule(SimpleScheduleBuilder.RepeatSecondlyForever(10)).Build();

sched.ScheduleJob(dailyEmailJob, dailyEmailTrigger);
sched.ScheduleJob(scheduledMaintenanceJob, scheduledMaintenanceTrigger);
sched.ScheduleJob(resourceAnalysisJob, resourceAnalysisTrigger);
}

My Job:

[DisallowConcurrentExecution]
    public class DailyEmails : IJob
    {
        public void Execute(IJobExecutionContext jobContext)
        {
            ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
            Log.Info("Call to Daily Email Execute. \r\n");

            string url = Helpers.Utilities.GetDomain() + "/Scheduler/DailyEmail/?hash=" + VRS_Scheduler.ScheduledHash;
            var client = new WebClient();
            var text = client.DownloadString(url);
        }
    }

My log file looks like so:

2018-05-15 11:55:00,001 INFO [QuartzScheduler_Worker-1] Transport.Web.UI.Infrastructure.Scheduled.DailyEmails - Call to Daily Email Execute.

2018-05-15 11:55:00,002 INFO [QuartzScheduler_Worker-1] Transport.Web.UI.Infrastructure.Scheduled.DailyEmails - Call to Daily Email Execute.

2018-05-15 11:55:00,088 INFO [QuartzScheduler_Worker-1] Transport.Web.UI.Infrastructure.Scheduled.DailyEmails - Call to Daily Email Execute.

As you can see, the Daily Email job runs 3 times…

[onebalaban]

Had a similar issue. A job has been starting 50 times in a row. The reason was an incorrect cron string - * 0/5 * * * ? *. Fixed with 0 0/5 * * * ?. Quartz v3.6.2

[lahma]

Closing as hard to reproduce. Advice is to run latest Quartz from 3.x series. I suspect this is a configuration problem.