Reset should be allowed with pending childWF in current run, if current run is already closed

[longquanzheng]

temporal/service/history/ndc/workflow_resetter.go

Line 290 in 0c735e4

return nil, serviceerror.NewInvalidArgument("WorkflowResetter encountered pending child workflows.")

Mirror issue cadence-workflow/cadence#5030

This is because child WF could get get closed after parent closed, and parent will not receive the children close signals.

So that after parent is closed for any reasons(terminate/timeout/fail/etc), this parent is never allowed to reset to anywhere because it has a pending childWFs in its mutableState forever as "deadlock condition"

[taonic]

Relates to #705

[MalteHB]

Any updates on this @yiminc?

I am also encountering that a workflow, without any pending children, cannot be reset to anything else but the first WorkflowTaskCompleted due to the WorkflowResetter encountered pending child workflows. error.

[yujiachen-y]

Hi @yiminc , do we have any plans to address this issue? I'm also stuck on this problem.

[snackattas]

+1