Revise queue task abandonment

[joachimmetz]

When queued tasks are abandoned they are only abandoned in the task manager, they are still on the task queue. This can result in the task being processed and retried while the task manager considers this abandoned.

• determine why the abandonment of queued tasks was necessary
• revisit if abandonment of queue tasks is the appropriate strategy

[joachimmetz]

@Onager from the top of your head do you recall why the abandonment of queued tasks was necessary?

[Onager]

It was to ensure that processing actually stopped, for the case when a worker received a task, then immediately crashed. If the main process never gets an update to from the worker, it'll wait forever for the "queued" task to be completed.