[zeromq-dev] Subscription lost after publisher restart

Pieter Hintjens ph at imatix.com
Tue Mar 11 14:07:21 CET 2014

Hi Diego,

Please try again with the recent 4.0.4 release and/or GitHub master.
There was an issue LIBZMQ-584 related to lost subscriptions that might
explain your case. That's fixed in 4.0.4 and on libzmq master.


On Tue, Mar 11, 2014 at 1:44 PM, Diego Fons <diego.fons at intraway.com> wrote:
> Hi,
> I'm facing a strange behavior in a PUB/SUB pattern. I've modified the
> psenvpub/psenvsub examples in order to publish different types of messages
> so the subscriber can choose.
> The publications are of type "A", "B" and "C".
> The subscriber subscribes to to publications "A" and "C".
> Run the programs and everything goes fine.
> Restart the publisher and now the subscriber only gets messages of type "C"
> (the "A" subscription was lost?).
> If the subscriber subscribes to messages "A", "B" and "C", the situation is
> the same, after publisher restart only messages of type "C" are received (It
> seems that only the last subscription is kept).
> Well, I don't known if it is a mistake in my code or something else. I'm
> attaching the codes, but the are pretty the same as in the examples.
> BTW, I'm building my examples with ZMQ v4.0.3.
> Thanks in advance.
> Best regards.
> --
> Diego Andrés Fons
> Intraway Corp.
> Solution Developer
> AR Office: +54 (11) 6040 4000
> US Office: +1 (516) 620 3890
> Email: diego.fons at intraway.com
> Visit our website at http://www.intraway.com
> Proud to be an ISO 9001:2008 certified company
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