After implementing a similar SchedulerStarter, I still had the
problem. So, I made my NoOpJob a little less trival
public class NoOpJob : IJob
{
public Boolean Execute(JobExecutionContext context)
{
context.Logger.DebugFormat("Hello World - {0}",
DateTime.Now.ToShortTimeString());
Thread.Sleep(5000);
return true;
}
}
I haven't seen it throw the error since this change.
Jason
On Thu, May 28, 2009 at 8:21 PM, jsmorris <[email protected]> wrote:
> Thanks for sharing your code. I will give it a try.
>
> Are you using the DefaultJobRunner? I took a look at the code and the
> comment in EndExecute explains the error I am seeing. Now all we need
> is a fix for this.
>
> public bool EndExecute(IAsyncResult asyncResult)
> {
> JobAsyncResult jobResult = (JobAsyncResult)asyncResult;
> bool executed = jobResult.End();
> jobFactory.ReleaseJob(jobResult.Job);
> return executed;
>
> //TODO: Fix it.
> //Something is not right. Sometimes (dunno why) it
> throws:
> //System.Runtime.Remoting.RemotingException: The async
> result
> object is null or of an unexpected type.
> }
>
> On Thu, May 28, 2009 at 5:44 AM, John Simons <[email protected]>
> wrote:
>> nope, here is what my config looks like:
>>
>> <component
>> id="scheduler.starter"
>> type="DFAT.SWAT.WCF.Services.SchedulerStarter, DFAT.SWAT.WCF"
>> service="Castle.Core.IStartable, Castle.Core" />
>>
>> And the implementation of SchedulerStarter: (Note: I've created a IJobSpec
>> interface to register jobs)
>>
>> public class SchedulerStarter : IStartable
>> {
>> private readonly IScheduler scheduler;
>> private readonly IKernel kernel;
>> private ILogger logger;
>>
>> public SchedulerStarter(IScheduler scheduler, IKernel kernel)
>> {
>> logger = NullLogger.Instance;
>> this.scheduler = scheduler;
>> this.kernel = kernel;
>> }
>>
>> public ILogger Logger
>> {
>> get { return logger; }
>> set { logger = value; }
>> }
>>
>> #region Implementation of IStartable
>>
>> /// <summary>
>> /// Starts this instance.
>> /// </summary>
>> public void Start()
>> {
>> var jobSpecs = kernel.ResolveAll<IJobSpec>();
>>
>> logger.InfoFormat("{0} jobs found.", jobSpecs.Length);
>>
>> foreach (var spec in jobSpecs)
>> {
>> var jobSpec = new JobSpec(spec.Name, spec.Description,
>> spec.JobId, spec.Trigger);
>>
>> scheduler.CreateJob(jobSpec,
>> CreateJobConflictAction.Replace);
>> logger.InfoFormat("{0} job found.", spec.Name);
>> }
>>
>> if (jobSpecs.Length > 0)
>> {
>> logger.Debug("Starting Scheduler");
>> scheduler.Start();
>> }
>> }
>>
>> /// <summary>
>> /// Stops this instance.
>> /// </summary>
>> public void Stop()
>> {
>> if (scheduler.IsRunning)
>> {
>> scheduler.Stop();
>> }
>>
>> scheduler.Dispose();
>> }
>>
>> #endregion
>> }
>>
>> I hope this helps :)
>> John
>>
>> ________________________________
>> From: jsmorris <[email protected]>
>> To: [email protected]
>> Sent: Thursday, 28 May, 2009 12:04:32 PM
>> Subject: Re: Using Component.Scheduler in Monorail produces random job
>> failures
>>
>>
>> @John
>>
>> I am assuming you configured it something like this (since I didn't
>> see that the DefaultScheduler implemented IStartable)
>>
>> <components>
>> <component id="Core.Scheduling.Scheduler"
>> service="Castle.Components.Scheduler.IScheduler,
>> Castle.Components.Scheduler"
>> type="Castle.Components.Scheduler.DefaultScheduler,
>> Castle.Components.Scheduler"
>> startable="true" startMethod="Start" stopMethod="Stop" />
>> </components>
>>
>> After I tried this, I still got the errors...bummer.
>>
>> Jason
>>
>> On Wed, May 27, 2009 at 10:23 PM, John Simons
>> <[email protected]> wrote:
>>> Hi Jason,
>>>
>>> I use the Scheduler with Monorail and I'm not experiencing any problems.
>>>
>>> The difference is that I start my Scheduler using the Startable Facility
>>>
>>> (http://www.castleproject.org/container/facilities/trunk/startable/index.html),
>>> have a look at the doco.
>>>
>>> Not sure why it would be failing randomly! I'll try to replicate your
>>> setup
>>> today and report on the results later on.
>>>
>>> Cheers
>>> John
>>>
>>>
>>>
>>> ________________________________
>>> From: jsmorris <[email protected]>
>>> To: [email protected]
>>> Sent: Thursday, 28 May, 2009 6:05:51 AM
>>> Subject: Using Component.Scheduler in Monorail produces random job
>>> failures
>>>
>>>
>>> I am exploring the use of Component.Scheduler to execute a few, short
>>> duration jobs within my monorail web app. I have read people's
>>> concern about asp.net killing your threads before the job is complete.
>>> Let's ignore that for the time being, unless using the
>>> Component.Scheduler in a monorail web app is impossible.
>>>
>>> I am running locally on the ASP.NET Development Server (not IIS)
>>> running castle nightly build 1126.
>>>
>>> I have written my Global.cs as such to start and stop the scheduler,
>>> plus adding a very basic job.
>>>
>>> public class Global : HttpApplication, IContainerAccessor
>>> {
>>> private static IWindsorContainer _container;
>>>
>>> public IWindsorContainer Container { get { return _container; } }
>>>
>>> protected void Application_Start(Object sender, EventArgs e)
>>> {
>>> _container = new IoCContainer("Web.config");
>>>
>>> var jobSpec = new JobSpec("NoOp job.", "A test job.",
>>> "NoOpJob", new PeriodicTrigger(new DateTime(1900, 1, 1), new
>>> DateTime(2900, 1, 1), new TimeSpan(0, 0, 10), 1000));
>>>
>>> _container.Resolve<IScheduler>().CreateJob(jobSpec,
>>> CreateJobConflictAction.Ignore);
>>> _container.Resolve<IScheduler>().Start();
>>> }
>>>
>>> protected void Application_End(Object sender, EventArgs e)
>>> {
>>> _container.Resolve<IScheduler>().Stop();
>>> _container.Dispose();
>>> }
>>> }
>>>
>>> My job is
>>>
>>> public class NoOpJob : IJob
>>> {
>>> public Boolean Execute(JobExecutionContext context)
>>> {
>>> context.Logger.DebugFormat("Hello World - {0}",
>>> DateTime.Now.ToShortTimeString());
>>> return true;
>>> }
>>> }
>>>
>>> After starting my web app, I am seeing jobs fail sporadically. I am
>>> not seeing any pattern. A sample of my log is
>>>
>>> 2009-05-27 12:45:10,006 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:45:10 PM.
>>> 2009-05-27 12:45:10,006 [4] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:45:10 PM.
>>> 2009-05-27 12:45:20,007 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:45:20 PM.
>>> 2009-05-27 12:45:20,007 [4]
>>> [ERROR]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob -
>>> Job 'NoOp job.' completed with an error at 5/27/2009 7:45:20 PM.
>>> 2009-05-27 12:45:30,007 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:45:30 PM.
>>> 2009-05-27 12:45:30,007 [4] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:45:30 PM.
>>> 2009-05-27 12:45:40,008 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:45:40 PM.
>>> 2009-05-27 12:45:40,008 [9] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:45:40 PM.
>>> 2009-05-27 12:45:50,008 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:45:50 PM.
>>> 2009-05-27 12:45:50,008 [9] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:45:50 PM.
>>> 2009-05-27 12:46:00,009 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:46:00 PM.
>>> 2009-05-27 12:46:00,009 [4]
>>> [ERROR]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob -
>>> Job 'NoOp job.' completed with an error at 5/27/2009 7:46:00 PM.
>>> 2009-05-27 12:46:10,009 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:46:10 PM.
>>> 2009-05-27 12:46:10,009 [9] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:46:10 PM.
>>> 2009-05-27 12:46:20,010 [Job Watcher for
>>> 'JMORRIS2-MOBL1/WebDev.WebServer, Scheduler #1'.] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.BeginExecuteJob - Job
>>> 'NoOp job.' started at 5/27/2009 7:46:20 PM.
>>> 2009-05-27 12:46:20,010 [4] [INFO
>>> ]Castle.Components.Scheduler.DefaultScheduler.EndExecuteJob - Job
>>> 'NoOp job.' completed successfully at 5/27/2009 7:46:20 PM.
>>>
>>> Before continuing on with this experiment (or debugging into the
>>> castle code), I had a few questions that maybe others have already
>>> answered.
>>>
>>> 1) Why is the (rather simple) job sporadically failing? Is there a
>>> way to see why the job is failing?
>>>
>>> 2) Can I catch the exception and expose it to my code so I can do
>>> something with it?
>>>
>>> 2) Is there a better way to configure the scheduler to start in a web
>>> app?
>>>
>>> Thanks,
>>> Jason
>>>
>>> ________________________________
>>> Need a Holiday? Win a $10,000 Holiday of your choice. Enter now..
>>> >
>>>
>>
>> ________________________________
>> Need a Holiday? Win a $10,000 Holiday of your choice. Enter now..
>> >>
>>
>
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