[zeromq-dev] PUB doesn't discard msg when no SUB

[Martin Sustrik]

On 05/26/2011 09:27 PM, Li, Jia wrote:

> Putting timestamp can be a work-around, but not efficient, as the SUB
> has to compare current time against message time for every message.
> It'd be nice to have this behavior either explained in the Guide or
> brought consistent with the intended usage.

Try setting HWM to 1 on the PUB side. That should drop any outstanding 
messages except for one.

Martin