[nanomsg] Re: How to bind on a random port?
- From: "xreborner (Shixi Chen)" <xreborner@xxxxxxxxx>
- To: nanomsg@xxxxxxxxxxxxx
- Date: Fri, 14 Nov 2014 23:30:07 +0800
Unfortunately, I'm running a distributed computation application on a
cluster with thousands of machines, in each machine there could be multiple
tasks are running in background and have occupied some random ports. If I
just choose a random port (in fact, i use not only one port) and use it,
there are roughly 1% probability to fail in one machine. If my application
is running on 200 machines, then it almost always fail.
On Fri, Nov 14, 2014 at 11:05 PM, Martin Sustrik <sustrik@xxxxxxxxxx> wrote:
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> On 14/11/14 15:55, xreborner (Shixi Chen) wrote:
> > So, if i don't know any port numbers that are available, it is
> > impossible to use nanomsg?
>
> Yes. Although on a typical machine, almost all ports are unused, so
> just picking one and using it tends to work.
>
> > My program is to be run on a remote cluster, where no port numbers
> > are known to be reserved. I was using zeromq and my solution was to
> > repeat calling zmq_bind. I'm considering to switch to nanomsg since
> > it looks better (and also due to some problems in zeromq). Is there
> > any plan to solve this problem in the future?
>
> I was thinking of implementing tcpmux (RFC 1) but it's not coming any
> time soon.
>
> Martin
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