[erlang-questions] epmd spamming syslog

B. Nicholson <>
Sat Apr 10 03:02:38 CEST 2010


One other thing, any time another distributed vm is started (i.e. "erl 
-sname newnode") this message is logged.  Are you sure another instance 
of a distributed node isn't being started about once or twice a 
minute.   I haven't seen rabbitmq do this except when restarting.

Barry Nicholson

On 04/09/2010 07:45 PM, B. Nicholson wrote:
> Each time I've seen this it was due to epmd restarting for some 
> reason.  Since there are many reasons that epmd can restart I couldn't 
> guess in your case what's happening.   Check epmd's pid over the 
> course of several minutes and see if it is stopping and then restarting.
>
> Barry Nicholson
>
> On 04/09/2010 05:55 PM, Jacob Vorreuter wrote:
>> I've noticed that epmd is logging this message to syslog about twice 
>> per minute.  The server is running an instance of rabbitmq and no 
>> other Erlang processes.  Can anyone provide some insight as to why 
>> epmd would log this message so frequently?  It appears to be logged 
>> at the end of the epmd_main function in epmd.c.
>>
>> Apr  9 15:42:49 asdf epmd: epmd: epmd running - daemon = 1
>> Apr  9 15:42:49 asdf epmd: epmd: epmd running - daemon = 1
>> Apr  9 15:43:43 asdf epmd: epmd: epmd running - daemon = 1
>> Apr  9 15:43:43 asdf epmd: epmd: epmd running - daemon = 1
>>
>>
>> static int epmd_main(int argc, char** argv, int free_argv)
>> ...
>>     dbg_printf(g,0,"epmd running - daemon = %d",g->is_daemon);
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