topic Re: Can I restart a task that failed from Probe? in Alfresco Archive

Can I restart a task that failed from Probe?

mgriffith — Wed, 20 Jul 2011 21:14:22 GMT

Hi all, I have a scenario where a I have a task in my workflow that fails and and I want to restart it using probe. Is that possible? I don't see any way to restart it, all I see is the process id. The task is a user task that also uses a spring delegateExpressionType on create to send a message to

Re: Can I restart a task that failed from Probe?

trademak — Thu, 21 Jul 2011 07:22:26 GMT

Hi,

You can create a sequence flow back to the failing task when the request was not successful.
Then the request will be executed again.

Best regards,

Re: Can I restart a task that failed from Probe?

mgriffith — Thu, 21 Jul 2011 13:08:33 GMT

Hi,

You can create a sequence flow back to the failing task when the request was not successful.
Then the request will be executed again.

Best regards,

Thanks for the reply. I'm not sure I fully understand what you mean. However, I get the impression this can't be done without additional programming. Is there an example in the samples that would demonstrate this concept?

If not, can you provide a high level overview of the steps?

Thanks in advance,

MG

Re: Can I restart a task that failed from Probe?

trademak — Thu, 21 Jul 2011 16:13:51 GMT

Hi,

You don't need addtional programming.
What you can do is add a form to the user task "Notify task" with a boolean field like requestCompleted. If the request fails you complete the form with false and in an exclusive gateway you test the value of the requestCompleted variable. If it's false you draw a sequence flow back to the "Notify task", if it's true you continue with the normal process flow.

Best regards,

Re: Can I restart a task that failed from Probe?

sudarshan — Wed, 15 Jan 2014 15:08:49 GMT

Hi
Have similar query here and its found to be happening frequently

Scenario

1. A Process is getting triggered via WebService and that WebService for somehow triggering multiple instances for same caseid. Now there is a logic which is written to check if its duplicate case, while doing this Activiti engine jar is throwing an exception "already taking a transition" .

This is happening (as I suspect) when a custom code is getting executed parallel to a Web Service triggering a new process for same case id
And due to this the case is not visible in ACT_RU…_TASK table

Request , if there is any solution to :-

1. handle this scenarios
2. To re-rerun the failed cases ( because of "already taking a transition" error, the case is not visible to re run in my exception activity)

Re: Can I restart a task that failed from Probe?

frederikherema1 — Wed, 15 Jan 2014 15:11:38 GMT

Can you elaborate a bit more on this "custom code" and where exactly you are seeing this exception?