Using Multiple nodes with same Cookie on single machine
Wed Sep 28 22:46:15 CEST 2005
AFAIK communication should be over the loopback interface (at least on Unix
On 9/28/05, Manjeet.Singh Sardar (AC/EDD) <>
> Hi Fredrick,
> You have answered my query.
> Regarding 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
> Thanks and Regards
> -----Original Message-----
> From: Fredrik Thulin [mailto:]
> Sent: Wednesday, September 28, 2005 1:45 PM
> To: Manjeet.Singh Sardar (AC/EDD)
> Cc: Erlang-Questions (E-mail)
> Subject: Re: Using Multiple nodes with same Cookie on single machine
> On Wednesday 28 September 2005 12.35, Manjeet.Singh Sardar (AC/EDD)
> > My question is, since we are planning to run different server nodes
> > on single machine with same Cookie, does it effects the communication
> > or performance of the system.
> I assume you mean 'affect', not 'effect'. What do you mean by 'affect'?
> Node-to-node communication over the loopback interface is probably a
> tiny bit faster than node-to-node communication over fast ethernet (100
> Mbp/s) or gigabit ethernet (1000 Mbp/s), but only marginally.
> > Has anybody tested this type of setup?
> Yes, I have several physical servers which run more than one erlang-node
> per server - naturally using the same cookie.
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