[ofa-general] Connection timeout on localhost (using libsdp)

[Amir Vadai]

Hi,

I noticed this mail after the private mail...

As I said before - you should run epmd using LD_PRELOAD and make sure that in libsdp.conf calls to 127.0.0.1 are done using TCP and not SDP.

--
Amir Vadai
Software Eng.
Mellanox Technologies
mailto: amirv at mellanox.co.il
Tel +972-3-6259539

On 09/02/2009 07:36 PM, Chris Tilt wrote:
> Hello,
> 
> I am very hopeful of getting libsdp working with an existing
> application. Specifically, I am trying to port Erlang to use SDP for
> it’s “distributed Erlang” mechanism. With LD_PRELOAD, this may be very
> easy. However, I am having trouble with one of it’s daemon processes (a
> port map deamon called “epmd”). Conceptually, it’s a very simple C
> program that runs either as a daemon or as a client that connects to the
> daemon to do queries. To be sure that I was getting SDP, I changed the
> source to use AF_INET_SDP by actually looking up that value in the
> include files (it was 27) and substituting that in place of AF_INET. I
> started the process as a daemon with debugging on and it reported as
> normal “listening on port...”. When I tried running it as a client, it
> attempted to connect to the known port on “localhost” and got a
> “Connection timeout” as reported by perror(2).
> 
> Ideas?
> 
> Cheers, Chris
> 
> P.S. There are many users of Infiniband that would dearly love to see
> distributed Erlang running FAST on their systems, so this would
> potentially help a lot of customers! Thanks for your help.
> 
> 
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