i think the idea/problem were working on, is there's a user event script, and we want to invoke a long running job. in a prior implementation we'd use

task

to invoke a scheduled script, but there was some concurrency limitation (i'm not sure on all the details there), i would also think you could use

task

to invoke a map/reduce, but again i'm not sure about concurrency limits. this is all within our wms/shipping/printing automation system so there could be LOTS of user event scripts needing to trigger a

task

, and didn't want to be limited by scheduled or map/reduce concurrencies