CODEWITHSUNDEEP
quartz.netquartz.net-2.0
Sam Sippe
Sam Sippe

Reputation: 3190

Quartz.net Late Execution with DisallowConcurrentExecution

I am using the latest nuget Quartz.net packages (v2.1.2.400).

This is my job...

[DisallowConcurrentExecution]
[PersistJobDataAfterExecution]
public class HelloJob : IJob
{
    public void Execute(IJobExecutionContext context)
    {
        Console.Out.WriteLine("Hello Job Now=" + DateTime.Now.ToString("s") + " Next=" + context.NextFireTimeUtc.Value.ToLocalTime().ToString("s"));
    }
}

This is my job and trigger setup...

            trigger = TriggerBuilder.Create()
            .WithIdentity("trigger1")
            .StartAt(DateTime.UtcNow.AddSeconds(5))
            .WithSchedule(SimpleScheduleBuilder
                .RepeatSecondlyForever(10)
                .WithMisfireHandlingInstructionIgnoreMisfires()                    
            ).Build();
            var job = JobBuilder.Create<HelloJob>().WithIdentity("job1").Build();
            sched.ScheduleJob(job, trigger);

This is my config...

        properties["quartz.scheduler.instanceName"] = "TestScheduler";
        properties["quartz.scheduler.instanceId"] = "AUTO";
        properties["quartz.jobStore.type"] = "Quartz.Impl.AdoJobStore.JobStoreTX, Quartz";
        properties["quartz.jobStore.useProperties"] = "true";
        properties["quartz.jobStore.dataSource"] = "default";
        properties["quartz.jobStore.tablePrefix"] = "QRTZ_";
        // if running MS SQL Server we need this
        properties["quartz.jobStore.lockHandler.type"] = "Quartz.Impl.AdoJobStore.UpdateLockRowSemaphore, Quartz";
        properties["quartz.jobStore.clustered"] = "true";

        //http://www.connectionstrings.com/mysql#mysql-connector-net-mysqlconnection
        properties["quartz.dataSource.default.connectionString"] = "Server=localhost;Database=quartz;Uid=xxxx;Pwd=xxxxxx;";
        properties["quartz.dataSource.default.provider"] = "MySql-65";

If I run a job without the [DisallowConcurrentExecution] attribute it runs as expected (i.e. every 10 seconds) like so...

Hello Job Now=2013-07-04T13:04:16 Next=2013-07-04T13:04:26
Hello Job Now=2013-07-04T13:04:26 Next=2013-07-04T13:04:36
Hello Job Now=2013-07-04T13:04:36 Next=2013-07-04T13:04:46
Hello Job Now=2013-07-04T13:04:46 Next=2013-07-04T13:04:56
Hello Job Now=2013-07-04T13:04:56 Next=2013-07-04T13:05:06

If I run a job with the [DisallowConcurrentExecution] attribute it soon runs behind schedule like so...

Hello Job Now=2013-07-04T13:11:00 Next=2013-07-04T13:11:10
Hello Job Now=2013-07-04T13:11:10 Next=2013-07-04T13:11:20
Hello Job Now=2013-07-04T13:11:47 Next=2013-07-04T13:11:30
Hello Job Now=2013-07-04T13:12:17 Next=2013-07-04T13:11:40

How can I prevent concurrent execution and have my jobs run on time?

Upvotes: 2

Views: 4380

Answers (1)

Marko Lahma
Marko Lahma

Reputation: 6884

This was a bug in Quartz.NET and has been fixed in version 2.2.3. I suggest you upgrade to the latest version.

Upvotes: 2

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