[zeromq-dev] SUB socket hangs after some time

[Joshua Foster]

I'm running it on OS X with 2.0.9 and I haven't seen the issue yet. I'll compile 2.0.10 and see if it happens later tonight. Not sure if this affects it, but numMessages should be volatile since you have multiple threads accessing it. If you want the ability to restart the subscriber without losing messages, be sure to set the identity. Also, are you running both pub and client on the same machine with tcp://127.0.0.1?

Joshua

On Nov 10, 2010, at 6:32 AM, Oliver Senn wrote:

> Hi list,
> 
> In our code we use a simple PUB/SUB scheme: A publisher is sending data over a PUB socket and a subscriber is getting that data using a SUB socket.
> Today I tested the code and (especially with a lot of messages) after some time the subscriber hangs in socket.recv(). The publisher happily goes on at sending messages and does not return an error. The subscriber does not get any of those messages though and also does not report an error.
> 
> I simplified the code we are using and a attached it to this email. Sometimes the problem appears after 20 seconds and sometimes after 400 but eventually it happens.
> 
> I am using ZeroMQ 2.0.10 and the Java bindings on Mac OS X 10.6.4 with .
> 
> Best,
> 
> Oliver
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