AFAIK communication should be over the loopback interface (at least on Unix servers).<br><br><div><span class="gmail_quote">On 9/28/05, <b class="gmail_sendername">Manjeet.Singh Sardar (AC/EDD)</b> <<a href="mailto:Manjeet.Singh.Sardar@ericsson.com">
Manjeet.Singh.Sardar@ericsson.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi Fredrick,<br>You have answered my query.
effect:I mean we are planning to run approx 50 nodes on a single
physical server and the communication is over fast Ethernet 100Mbp/s
does this effects the performance i.e. speed since we are communicating
simultaneously.<br><br>Thanks and Regards<br>Manjeet<br><br>-----Original Message-----<br>From: Fredrik Thulin [mailto:<a href="mailto:email@example.com">firstname.lastname@example.org</a>]<br>Sent: Wednesday, September 28, 2005 1:45 PM<br>To: Manjeet.Singh
Sardar (AC/EDD)<br>Cc: Erlang-Questions (E-mail)<br>Subject: Re: Using Multiple nodes with same Cookie on single machine<br><br><br>On Wednesday 28 September 2005 12.35, Manjeet.Singh Sardar (AC/EDD)<br>wrote:<br>...<br>
> My question is, since we are planning to run different server nodes<br>> on single machine with same Cookie, does it effects the communication<br>> or performance of the system.<br><br>I assume you mean 'affect', not 'effect'. What do you mean by 'affect'?
<br><br>Node-to-node communication over the loopback interface is probably a<br>tiny bit faster than node-to-node communication over fast ethernet (100<br>Mbp/s) or gigabit ethernet (1000 Mbp/s), but only marginally.<br><br>
> Has anybody tested this type of setup?<br><br>Yes, I have several physical servers which run more than one erlang-node<br>per server - naturally using the same cookie.<br><br>/Fredrik<br></blockquote></div><br>