[Spread-users] Trouble Talking Between 2 Servers

Cameron Stuart cstuart at wdg.com.au
Sun Jan 7 20:45:38 EST 2007

Thanks for your help dustin, we actually had a couple of problems,

1) We use FreeBSD, so the port had to be opened in /etc/services
2) The network addresses we were using were incorrect.
For our internal network (10.1.1.x)
the segment address should be, instead of which is what we had

On a 192.168.1.x network as a segment address will work

Thanks again

-----Original Message-----
From: dustin at v.igoro.us [mailto:dustin at v.igoro.us]
Sent: Wed 1/3/2007 4:00 PM
To: Cameron Stuart
Cc: spread-users at lists.spread.org
Subject: Re: [Spread-users] Trouble Talking Between 2 Servers
On Wed, Jan 03, 2007 at 03:45:24PM +1100, Cameron Stuart wrote:
>    Hi,
>    I was wondering if someone can run their eye over my config's, as I
>    can't seem to get 2 spread servers talking to each other.
>    The machine host names are spread1 ( and spread2
>    (
>    They are freebsd 6.1 running spread 3.17.3 as a freebsd port
>    installation.
>    I have the port 4803 open on both boxes, and have tested that using
>    separate perl scripts that communicate over sockets.
>    I am using 2 perl scripts to test communications, and they seem to
>    work ok when run on a single server, but not across 2 servers.

I keep having problems like this, usually caused by:
 * firewalling 4803 or 4804
 * different names for boxes in different configuration files
 * different IPs for boxes in different configuration files

Diagnostics that I have usd involve:
 * watching spread's logs to see what daemons it thinks are in the
[Fri 13 Oct 2006 02:43:50] --------------------
[Fri 13 Oct 2006 02:43:50] Configuration at box1 is:
[Fri 13 Oct 2006 02:43:50] Num Segments 1
[Fri 13 Oct 2006 02:43:50]  4     4803
[Fri 13 Oct 2006 02:43:50]      box2          
[Fri 13 Oct 2006 02:43:50]      box1          
[Fri 13 Oct 2006 02:43:50]      box3          
[Fri 13 Oct 2006 02:43:50]      box4          
[Fri 13 Oct 2006 02:43:50] ====================

 * watching spmonitor to see if the token is circulating between boxes (rounds
   should be counting up in sync)

 * using spuser to join the same group on each box

That takes any question about the scripts out of the picture (although from my
understanding of Perl, they looked fine).


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