> On Monday, June 18, 2012 4:31:57 PM UTC-4, ddeng wrote:
> >
> > I have some qusestions about exception/cancelation handling strategy in
> > Ruote.  On the documentation
> > http://ruote.rubyforge.org/patterns.html#cancellationc it's still "coming
> > soon"
> > I met the following case:
> > sequence do
> >   alice :work_id=>"111"
> >   bob   :work_id=>"222"
> > end
> >
> > I am looking for the proper way to handle the situation where alice or bob
> > may not be able to finish the given jobs, then the process can be
> > terminated and the reason of the termination can be properly captured.
> >
> >
> > So I came up with following solutions, but not sure which is the proper
> > way to do that:
> >
> > 1. cancel the process directly by calling Dashboard#cancel
> > 2. cancel the workitem by calling Dashboard#cancel , but in this case, I
> > found bob will still get the workitem.
> > 3. add some expression in the definition, like
> >      cancel if ${f:status == "failed"}
> >    I found this tedious and cumbersome for dynamic generated definitions...
> >
> > So, what is the proper cancellation strategy?
>
On Mon, Jun 18, 2012 at 01:49:49PM -0700, ddeng wrote:
> BTW, how to throw an error manually given a work item?

Hello Deng,

two threads to discuss this issue, that's one thread too much.

I suggest

---8<---
sequence do
  alice :work_id=>"111"
  bob   :work_id=>"222"
end
--->8---

And I'll bring you the trick to emit errors from storage participants
tomorrow, in the other thread.


Best regards,

--
John Mettraux - http://lambda.io/jmettraux

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