[zeromq-dev] Clean shutdown of PUSH/PULL pipeline inproc

Pieter Hintjens pieterh at gmail.com
Mon Mar 4 19:28:37 CET 2013

If you don't start more workers, and you're not blocked on hwms, each
worker will get exactly one stop message. The sink can know what N is.

On Mar 4, 2013 6:58 PM, "Gerrit Hendrikus van Doorn" <g.h.vandoorn at gmail.com>

> When sending N STOP messages through a pipeline, these messages might be
> received at the SINK before the other messages have been processed by the
> workers.
> Another (but not ideal) method  is to have every worker send every message
> to the SINK. The client, when finished, can publish (using a PUB socket)
> the total number of messages it send to the SINK, which then counts the
> number of received messages and exits when the total number is reached.
> Before exiting it would notify the workers using another PUB/SUB
> combination.
> The downside of this construct is that every message that a worker
> received has to be passed on to the SINK.
> - Gerrit
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