How to make a task always be scheduled even previous task failed?

[hankquan]

Is there possible to make a task always be scheduled even previous task failed? Just like a finally task, the purpose of this requirement is that I would like to do some cleaning actions even the workflow failed somewhere. Thanks

[maheshyaddanapudi]

I think if you set the parameter "optional": true in the previous task, it would not fail the workflow and carry forward with the next task.

[hankquan]

Thanks @maheshyaddanapudi , I didn't know this options. It helps a lot, thank you.

[apanicker-nflx]

Thanks for the answer @maheshyaddanapudi .
While setting optional:true on the task would prevent it from failing, it would not help achieve the cleanup action that is desired.

@howaric You would probably benefit from using the failure_workflow feature . You could create a workflow which does cleanup and link to it from your workflow definition.

[hankquan]

Thanks @apanicker-nflx , it could work I think, and I'll try.
While I think it is a little heavy, maybe I just want to do some small actions, but I need to define a workflow for it. Maybe we can implement a system task, eg: Final Task?

[apanicker-nflx]

Defining this as a workflow makes this more composable and reusable. Please take a look at #2705 where the idea is to publish an event into an internal queue for every workflow, which can be extended to solve for both the "exception" clause and the "finally" clause.