I would recommend taking a look at the per-request pattern and using "tell"
all the way.

http://techblog.net-a-porter.com/2013/12/ask-tell-and-per-request-actors/

On Wed, Oct 8, 2014 at 11:57 PM, Prakhyat Mallikarjun <prakhyat...@gmail.com
> wrote:

> Team,
>
> We are working on a simple POC. The POC is developed on the approach event
> sourcing/DDD/CQRS.
>
> The PersistentActors are shaded. PersistentViews are created to push
> events from write side towards query side.
>
> The business logic resides in PersistentActors. The rest API's are
> written to invoke PersistentActors. The rest layer invokes PersistentActor
> and waits for response. This looks like synchronous, we are using Ask
> pattern. The rest layer has to wait till the PersistentActor is done with
> business logic and returns.
>
> The ask pattern comes with a cost i.e. to specify timeout while making a
> call to other actor. If the response is not received within timeout
> specified, exception will be raised.
>
> Tell in other perspective is asynchronous. The actor making a "tell" call
> need not wait for response.
>
> What are your recommendations/insights on using tell vs ask?
>
> -Prakhyat M M
>
>
>
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