[erlang-questions] Max. number of distributed nodes?

Peter Sabaini <>
Thu Jul 9 16:11:56 CEST 2009


I should maybe add that this is on a local network (gigabit) and the
network seems reasonably healthy:

# ping -f -s1024 mass 
PING mass.local (192.168.1.199) 1024(1052) bytes of data.
.^C
--- mass.local ping statistics ---
116392 packets transmitted, 116391 received, 0% packet loss, time
24487ms
rtt min/avg/max/mdev = 0.118/0.154/0.330/0.017 ms, ipg/ewma 0.210/0.153
ms


I notice some network traffic when the nodes start up (spikes up to
~5Mbit/s) but far from being saturated; also there is some load
(loadfactor ~1-3) on the machines during startup but nothing
extraordinary. 

On Thu, 2009-07-09 at 14:45 +0200, Peter Sabaini wrote:
> Hi,
> 
> I'm currently experimenting with a distributed Erlang setup and I'm
> trying to get ~120 nodes spread (unevenly) over 5 machines to talk to
> each other. 
> 
> Unfortunately, I often get errors of the kind:
> 
> =ERROR REPORT==== 9-Jul-2009::13:56:07 ===
> The global_name_server locker process received an unexpected message:
> {{#Ref<0.0.0.1957>,''},false}
> 
> Or 
> 
> =ERROR REPORT==== 9-Jul-2009::14:03:33 ===
> global: '' failed to connect to ''
> 
> 
> I tried:
> 
> * setting ERL_MAX_PORTS to 100 000
> 
> * using kernel-poll
> 
> * setting net_setuptime to 60s
> 
> but the errors persist.
> 
> Is there anything else I could try?
> 
> Thanks,
> peter.
> 
> 
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