IntermediateCatchEvent under 5 secondes working only once

[mathieum]

Hello,

I am actually refactor my application which uses Activiti.

I am encoutering some issues with IntermediateCatchEvent.
In my workflow, I have an independant process which call a service every 2 second, so I use an intermediateCatchEvent inside :

<intermediateCatchEvent id="timerintermediatecatcheventUUID" name="TimerCatchEvent UUID">
      <timerEventDefinition>
        <timeDuration>PT2S</timeDuration>
      </timerEventDefinition>
</intermediateCatchEvent>
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The event is fired fine the first time (after a delay of 2 second) but for the other calls, it seems the timer is not reset :

[17/02/2014 15:20:33.635][default-workqueue-3] Call service…[1]
[17/02/2014 15:20:35.097][default-workqueue-3] Call service…[2]
[17/02/2014 15:20:35.144][default-workqueue-3] Call service…[3]
[17/02/2014 15:20:35.176][default-workqueue-3] Call service…[4]
[17/02/2014 15:20:35.222][default-workqueue-3] Call service…[5]
[17/02/2014 15:20:35.269][default-workqueue-3] Call service…[6]
‍‍‍‍‍‍‍‍

After a few try, I discover that the same code/process work fine with a timeDuration setted to PT5S (but not under).

Any ideas about this behavior ?

Thanks in advance,

Mathieu M

[martin_grofcik]

Hi Mathieu,

JobExecutor has set wait time to 5s. Try to decrease it. It can affect activiti performance. Does it really make sense to execute job each 2 sec?

Regards
Martin

[smirzai]

Hi Mathieu
You are right. The minimum wait time for job executor to peek the next job is 5 seconds. That is the maximum resolution with the default job executor.
If you need a finer grained resolution, you can extend the DefaultJobExecutor class, set its waitTimeInMillis property to whatever you want and inject it in process configuration.
I hope it helps you.

You should not set it too low as it will increase overheads.

[mathieum]

Hi Martin, Smirzai,

Thanks for the tip, it fixed my issue perfectly fine.

@Martin : In my application context, I must test the context every 2/3 seconds so I have no other choice.

Thanks again,
Regards,
Mathieu