[rabbitmq-discuss] Erlang has closed

[Matthias Radestock]

Tsuraan,

tsuraan wrote:
> I think what's happening is that the os_mon:call (from cpu_sup:avg1())
> is errorring out somehow, so its return value is { error, _ } instead
> of a number.  In the local_load function of rabbit_load.erl, where you
> currently have
> 
> _Other -> cpu_sup:avg1()
> 
> it should probably be
> 
> _Other ->
>   case cpu_sup:avg1() of
>     { error, _ } -> 0.0;
>     Value -> Value
>   end

Well spotted. It should be 'infinity' instead of 0.0 though, and we 
shouldn't ignore the error if it is something other than timeout.

I have committed a fix which, subject to qa, will make it into the next 
release.

(Btw, the reason for the timeout is that even though the cpu_sup 
gen_server:call has a timeout of infinity, internally there is a 
measurement_server_call with a timeout of 5s, which presumably gets 
triggered under heavy load).


Regards,

Matthias.