topic Re: Parallel Gateway stuck on Join in Alfresco Archive

Parallel Gateway stuck on Join

nsaputro — Tue, 20 May 2014 07:35:49 GMT

Hi All,I have a problem where process is stuck in parallel gateway join step waiting execution (task) that is already cancelled by boundary timer<blockcode> [+] Parallel fork / | \ T1 T2 T3 (T3 has a boundary timer that executes a service task when it is due) \ | /

Re: Parallel Gateway stuck on Join

jbarrez — Tue, 20 May 2014 08:29:02 GMT

> Is there any workaround to at least continue the running processes ?

You could try to 'fix' the execution tree yourself, by looking at the processes that are doing the right behaviour, and fixing, using sql, the execution rows to move it past the join. Do not that this is not an easy task, especially if this is production :s

Re: Parallel Gateway stuck on Join

nsaputro — Tue, 20 May 2014 09:11:30 GMT

Thank you. I have been able to reconstruct the task (T3) by creating records on the following tables:

* act_ru_execution (2 records, one for main execution & parallel execution)
* act_ru_task (1 record)

It seems the process continue normally after I completed the task.

Is that safe to do or is there any other table that I need to update/insert?

Re: Parallel Gateway stuck on Join

jbarrez — Wed, 21 May 2014 08:55:46 GMT

If the process is simple enough as you describe (only joining two tasks) it should be only that.
It is 'safe' in the sense that you can always go in the db again and fix it manually 😉
Activiti does not cache anything around executions or runtime state, so that won't cause a problem.

To be sure you could write a unit test that executes the new process, and see what database differences there are with the old version.