topic Re: Poller process in Alfresco Archive

Poller process

robinho — Wed, 10 Feb 2016 08:49:10 GMT

HiI have created an activiti process for the lifecycle of an email which passes many service tasks.Now I have another process that polls emails from a queue and starts the new activiti email process everytime a new email is polled.the poller process should never stop polling.I understand that an act

Re: Poller process

martin_grofcik — Wed, 10 Feb 2016 12:28:57 GMT

Hi,

an jUnit test example could help me to understand your issue better, but I would say that poller activity call (subprocess call) is synchronous.
Make this call asynchronous. In that case new job will be created and failure of one subprocess won't cause failure of the parent process.

Another issue is that parent process will wait on the subprocess return. What I would do is:
1. Parent process instance should be started periodically (timer start event) (or you can implement it in java and schedule it with some scheduler)
2. this parent process has to decide whether call subprocess or not.

Regards
Martin
2.

Re: Poller process

robinho — Wed, 10 Feb 2016 14:59:15 GMT

I have created an asynchronous start timer event that calls a new mailing process (every 3 seconds).
I don't want the timer to wait till the mailing process ends.
I want to have multiple mail processes(each has his own lifecycle) running (ca 50K processes) at once, each started by the timer.
the asynchronous start timer is not doing this for me..

How can I make this work?

thanks

Re: Poller process

jbarrez — Thu, 11 Feb 2016 09:50:03 GMT

"the asynchronous start timer is not doing this for me.."

What part is it not doing for you? Multiple process instances at once (don't see why not) … or starting every 3 seconds?

Re: Poller process

robinho — Thu, 11 Feb 2016 11:39:16 GMT

I have an activiti start timer that starts a servicetask every 5 seconds.
In my service task I call my email process with the code:
<code> runtimeService.startProcessInstanceByKey("mailProcess", variables); </code>

I have set my servicetask asynchronous.
The problem is now that my mailProcess is not executed every 5 seconds (async).
Because the servicetask waits for my mailProcess to finish.

How can I solve this? thanks for any help

Re: Poller process

trademak — Mon, 15 Feb 2016 08:35:30 GMT

Hi,

Did you add an asynchronous definition to the steps in your mail process as well? If that's async, then the invocation of starting this process instance should return quickly.

Best regards,

Re: Poller process

robinho — Mon, 15 Feb 2016 13:24:16 GMT

Hi tijs

Thanks for your answer, I didnt know the mailprocess had to be asynchronous as well.
I Made the full process async(every service task) & every servicetask has "exclusive no".
Now my mailprocess is executed async and executed multiple times by a start timer

Thanks