[erlang-questions] inets service startup
Ingela Anderton Andin
ingela@REDACTED
Wed Apr 11 09:45:09 CEST 2007
Hi Serge!
I do not know why that line was ever entered, and it was a bad idea not
to remove it altogether.
The httpd_sup supervisor is a one_for_one supervisor which means that if
there is a problem
with one child it should not affect the other children. It is possible
to start several HTTP-servers
and a configuration error in one of them should not have a bearing on
the others. Maybe the
error could be reported differently to be more "user friendly".
Regards Ingela -OTP Team
>>> While accidentally entering wrong information in inets' server
>>> configuration file I got an error report stating that a child spec was
>>> not created. As a result the corresponding service didn't get started.
>>>
>>> Upon examining sources, I found the following code with
>>> exit({error,Reason}) commented out:
>>>
>>> httpd_sup.erl:
>>> ==============
>>> child_spec([], Acc) ->
>>> Acc;
>>> child_spec([{httpd, HttpdService} | Rest], Acc) ->
>>> NewHttpdService = mk_tuple_list(HttpdService),
>>> %% Acc2 = child_spec2(NewHttpdService,Acc),
>>> NewAcc=
>>> case catch child_spec2(NewHttpdService) of
>>> {ok,Acc2} ->
>>> [Acc2|Acc];
>>> {error,Reason} ->
>>> error_msg("failed to create child spec for ~n~p~ndue to: ~p",
>>> [HttpdService,Reason]),
>>> % exit({error,Reason})
>>> Acc
>>> end,
>>> child_spec(Rest,NewAcc).
>>>
>>> I was wondering what the authors had in mind by somewhat silently
>>> ignoring the critical error at startup. Wouldn't it be proper to
>>> uncomment that line?
>>>
>>> Serge
>>>
>>>
>>>
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