[erlang-questions] Inets application unstarted.

[Brian Troutwine]

Hello Andreas,

I very much thought I'd written back to thank you, but I had not. My apologies.

You were quite corrrect, that was the missing bit of the puzzle. I
simply misunderstood the OTP system principles.

Thank you,
Brian

On 7/21/08, Andreas Hillqvist <andreas.hillqvist@REDACTED> wrote:
> Hi Brian.
>
>  I belive that the pice missing from the puzzel is a Boot Script, that
>  should start the application in a correct order acording to each
>  applications dependencies:
>  http://www.erlang.org/doc/system_principles/system_principles.html#1.3
>
>  The simple way to make an boot script is to use a release resource file:
>  http://www.erlang.org/doc/man/rel.html
>
>  To use your boot file:
>     >erl -boot Your_Boot_Script.boot
>  Or
>     >erl -boot_var $App_Path/Your_Boot_Script.boot
>
>  To summeries, I belive it should be sufficent for your use:
>   * create a release resource file
>   * create a boot script from your resource file
>   * use your boot script when starting erlang
>
>  Pleas feel free to comment and/or add any additional comments.
>
>
>  Kind regards
>  Andreas Hillqvist
>
>  2008/7/22, Brian Troutwine <goofyheadedpunk@REDACTED>:
>
> > Hello all,
>  >
>  > I'm building my first OTP program, which I'm calling Aule. It's
>  > something simple to mine data through the Amazon web services, which
>  > is REST based. I need inets started as a dependency of Aule.
>  >
>  > I've followed the OTP Design Principles "Applications" and the "Inets
>  > User Guide" Http sections most heavily, in addition to man pages and
>  > IRC guidance. All that said, I have my aule.app which looks like so:
>  >
>  > >{application, aule,
>  > > [{description, "An Amazon data AAWS data miner"},
>  > >  {vsn, "0.0.1"},
>  > >  {modules, [aaws_functions, aule, aule_supervisor,
>  > >             browse_node_fiend, amazon_interface]},
>  > >  {registered, ['AmazonInterface', 'BrowseNodeFiend']},
>  > >  {applications, [kernel, stdlib, inets]},
>  > >  {mod, {aule,[]}},
>  > >  {env, []}
>  > > ]}.
>  >
>  > And a sys.config that looks like so:
>  >
>  > > [{kernel, [{start_timer, true}]},
>  > >  {inets, [{services, [{httpc, [{profile, olorin}]}]}]}
>  > > ].
>  >
>  > I run, "erl -config sys.config" and then load/start aule like so:
>  >
>  > > 1> application:load(aule), application:start(aule).
>  > > {error,{not_started,inets}}
>  >
>  > And I'm confused. The OTP Design Principles document states that the
>  > applications field has "[a]ll applications which must be started
>  > before this application is started." I took this to mean that OTP
>  > starts the appropriate applications before aule start. Am I wrong? If
>  > so, what does applications do? If I'm not wrong, what am I missing to
>  > get inets started immediately?
>  >
>  > Thanks in advance,
>  > Brian
>
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