Duplicate variables occurs in the database when using parallel gateway

Flowable Engine
1

When I update a process variable in the two branches of the parallel gateway, there are duplicate variables in the database.
I use flowable 6.7.2 and mysql 5.7
Has anyone encountered a similar problem?

2

If the variables have the same name, that shouldn’t happen, one branch should get an optimistic lock exception. Do you have a unit test to reproduce?

3

Thanks for your reply. I did unit test, This happened only once. I found that the same variable was created at the same time in database, that shouldn’t happen

4

No, indeed. Hence why I’m interested to reproduce this. But you’re saying you cannot reproduce it in a unit test?

6

I have encountered this twice in flowable6.7.2, but I can’t reproduce it, it happens occasionally. In flowable6.4.2, is reproducible, You can reproduce it with this flowchart.
I use this api : @PostMapping(value = “/runtime/tasks/{taskId}/variables”

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Let me know if you need any other info

7

Hey @ZUI,

The flowchart is not really helping. Can you please provide a simple step by step scenario and your process model? Without it we can’t really help much.

Cheers,
Filip