nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

No process instance in execution

tdtappe

After getting some unexpected NPEs using CDI (e.g. injecting ProcessInstance) I had a look into the activiti tables and noticed some tasks having a process instance id assigned - but their assigned execution do not have a process instance id.
Is this supposed to be possible/allowed?
Can anyone shed some light on this?

–Heiko

Find more posts tagged with

Comments

frederikherema1

Can you confirm if I understand your question correct: You have ACT_RU_EXECUTION entries that don't have a PROC_INST_ID_ set.

tdtappe

Yes - a whole bunch of them.

jbarrez

That can only be done by casting and setting the process instance id your self.

Are you sure this are "first-class" tasks of a process instance? Ie. they are not standalone tasks or subtasks (parentId != null)?

tdtappe

AFAICT I don't set any process instance id on my own.
As for the standalone tasks or subtasks: I think I don't have any of these. At least not on purpose.

If I don't miss anything the only thing I do in my app concerning Activiti is starting process instances via RuntimeService and completing tasks via TaskService. And for the time being (I am just exploring Activiti) my process definitions are fairly simple - without any subprocesses or anything.

tdtappe

What just popped into my mind: Could this problem be related to suspended processes? While exploring Activiti I made some tests with suspending processes.

tdtappe

No, I haven't got suspended processes any longer in my database.

frederikherema1

Can you post a dump of the related ACT_RU_EXECUTION entries that don't have an execution ID defined? Executions without a process-instance shouldn't exist actually… You're using cdi 'BusinessProcess' I presume?

tdtappe

Sure. Need some time though - I have to restore a backup of the database first.
What I noticed in the meantime was that obviously only "old" processes were affected. So after removing those "invalid" processes I didn't run into problems (so far). So probably there must have been something strange at that time. But for the time being I have no idea what that could have been. As I mentioned before I did some tests with suspended processes. And I removed pseudo tasks which I used to "pause" the processes right after they were started. Also I switched two service tasks right at the beginning and at the end of the process to "async".

tdtappe

Here you are!

frederikherema1

Sorry, I was referring to the ACT_RU_TASK table, that have the missing executtion-ids. I don't see anything in our code that could be causing the absence/disappearing of the ID. So you are saying you cannot reproduce the issue with your process? If you still can, perhaps it's a good idea to extract the process that is showing this behavior, simplify it and create a simple unit-test so we can look closer.

tdtappe

No, I don't have act_ru_task records without execution id.

I will try to restore the state when this problem occured.
I just added three more table exports that might be helpful just in case I can't reproduce the problem.

Thanks so far!

act_re_procdef.txt.zip

act_re_deployment.txt