Lifecycle of a Process Instance between spring app restarts

Flowable Engine
1

Hello:
I am a flowable newbie and have a question. I am creating bpmn process models, storing the xml in the resources folder of my spring boot app. I then use rest endpoints to start process instances. My process includes triggerable events as well as boundary event message listeners. I am able to start a process instance and then trigger each of the async/message related tasks (via rest endpoints). If I restart my spring app in the middle of the execution of a process instance, I no longer can access those executions that were pending. What is the expected behavior in this case? Do I need to “reload” pending executions when the app restarts?

Thanks!
Raj

2

Hi Raj,

What kind of database do you use? Isn’t it h2 with in memory configuration? If yes, configure it to store data on the disk.

Regards
Martin

3

Hi Martin, thank you for your prompt reply. I am using MySQL and on further testing, I notice that I get occasional 500s stating that the execution cannot be found. Let me investigate further. I am able to see the persisted executions in the ACT_RU_EXECUTION table and I’m able to trigger/resume activities after server restarts.

Thanks!
Raj