Orquesta workflow failed with unknown error

Hi,

I met a problem with Orquesta workflow in HA environment. When I run the workflow on each server individually, it works well. When I run under VIP, it sometimes succeeded, sometimes failed although children all succeeded. Post the log in st2workflowengine.log. Hope you can help me, thanks.

2020-07-01 15:37:14,082 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Action execution "5efc3d29da89396bb964e7ee" for task "execution" is updated and in "scheduled" state.
2020-07-01 15:37:14,658 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Action execution "5efc3d29da89396bb964e7ee" for task "execution" is updated and in "succeeded" state.
2020-07-01 15:37:14,663 139642466114608 WARNING coordination [-] Coordination backend is not configured. Code paths which use coordination service will use best effort approach and race conditions are possible.
2020-07-01 15:37:14,681 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Handling completion of action execution "5efc3d29da89396bb964e7ee" in status "succeeded" for task "execution", route "0".
2020-07-01 15:37:14,815 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Publish task "execution", route "0", with status "succeeded" to conductor.
2020-07-01 15:37:14,821 139642466114608 WARNING workflow [-] Determining if exception <type 'exceptions.KeyError'> should be retried.
2020-07-01 15:37:14,822 139642466114608 WARNING workflow [-] Determining if exception <type 'exceptions.KeyError'> should be retried.
2020-07-01 15:37:14,822 139642466114608 WARNING workflow [-] Determining if exception <type 'exceptions.KeyError'> should be retried.
2020-07-01 15:37:14,841 139642466114608 ERROR workflows [-] [5efc3d1514b74d51a66838ab] Unknown error while processing task execution. KeyError: u'continue'
2020-07-01 15:37:14,841 139642466114608 ERROR workflows [-] [5efc3d1514b74d51a66838ab] Unknown error while processing task execution. Failing task execution "5efc3d29da89396bb964e7ec".
2020-07-01 15:37:14,914 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Publish task "execution", route "0", with status "failed" to conductor.
2020-07-01 15:37:14,924 139642466114608 INFO workflows [-] [5efc3d1514b74d51a66838ab] Updating workflow execution from status "running" to "failed".
2020-07-01 15:37:14,970 139642466114608 ERROR workflows [-] [5efc3d1514b74d51a66838ab] Workflow execution completed with errors. (task_id=u'execution',type=u'error',message=u'Execution failed. See result for details.')

What’s your environment? How HA is configured? Do you use any coordination backend? What’s the meaning behind the “VIP” from your message?

Workflow execution completed with errors. (task_id=u'execution',type=u'error',message=u'Execution failed. See result for details.')

What execution result shows for that workflow?

Thanks, I checked my environment and found that one stackstorm is v3.2, another one is v3.1. After updating to v3.2, the problem disappeared. I guess it was caused by version compatibility.