[erlang-questions] Question about message passing paradigm

[Richard A. O'Keefe]

On 30 Jun 2008, at 8:49 pm, Hynek Vychodil wrote:
> Change your design from pull to push.

> Make servers which collect data and do something instead "request"  
> data or actions.

I wondered about mentioning that too, because if B C D send their
information to A you only need three messages.

However, this creates two problems:
  - the original poster appeared to want a *consistent snapshot*
    of the information from B C D, which seems to require
    synchronisation
  - A might not be interested in X Y Z much of the time;
    some sort of flow control scheme is needed to stop B C D
    telling A stuff it doesn't want to know and can't cope with.

One would really need to take a look at the whole system,
as Hynek Vychodil suggests.