[zeromq-dev] push to multiple pull sockets

[Nathan Marz]

I think I was unclear. I don't want the load balancing behavior and instead
want the pusher to send the message to all the pullers it's connected to.



On Sun, Jan 30, 2011 at 6:46 PM, Andrew Hume <andrew at research.att.com>wrote:

> it does exactly as you wish.
> push pull supports multiple pushers and multiple pullers.
> it does fair cheduling amongst the pushers
> and load balancing across the pullers.
> i use this paradigm all the time.
>
>
> although, i think push/pull doesn't work so well with multicast transport.
>
> On Jan 30, 2011, at 6:15 PM, Nathan Marz wrote:
>
> I asked about this on irc, but I'd like to get more information on this. In
> the system I'm building, I need to push messages to multiple workers. The
> sender knows who all the receivers are, but push sockets only support
> load-balancing and not pushing to all the receivers.
>
> I was told I should use pub/sub for this functionality, but this seems
> needlessly complex if I want to ensure no messages lost as it requires a
> synchronization step. The system I'm building has fault-tolerance built at
> the software layer, so publishers/receivers can change over time as machines
> go down and tasks get reassigned. Synchronizing new publishers and receivers
> mid-processing is not desirable.
>
> Are there technical reasons why multicasting from a push socket to multiple
> pull sockets is not desirable? Alternatively, are there any major drawbacks
> to having the sender open up a separate push socket to each receiver?
>
> Thanks,
> Nathan
>
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