[zeromq-dev] Seldom publisher is not listened to for long ?

[Martin Raspaud]

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Hi all,

I have a very simple pub/sub scheme (1 pub, 1 sub) talking over an IPSec
tunnel.

This seems to work great when publishing messages regularly. However, a
typical use case for us would be to publish one message every two or
three hours. In those cases we have noticed that the subscriber after a
while is just not receiving any messages anymore (no obvious error
message or so).

We fixed the problem by implementing a heartbeat, but I'm a bit
sceptical. ZeroMQ should know better, right ? Or maybe is this not a zmq
problem, maybe it's related to an underlying network layer ? Does anyone
have an idea on this ?

I've been searching around the list and the guide, but I did not seem to
find anything related to my problem here... Please shout if I missed it :)

Best regards,

Martin
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