Erlang/OTP Forums
Author Message

<  Open Telecom Platform (OTP)  ~  otp/supervisor immediately goes to "shutdown"
nicks
Posted: Sun Mar 06, 2011 5:31 pm Reply with quote
Joined: 25 Dec 2009 Posts: 9
I am facing problems starting my db.erl module using supervisor tree (system_tests:execute() on shell). Supervisor immediately goes to "shutdown"

However, my db.erl starts up perfectly stand alone.

Code:
-module(system_tests).
execute() ->
S = .......
{ok, _} = my_sup:start_link([S]).


Code:
-module(my_sup).
-behaviour(supervisor).
-export([start_link/1,stop/1,init/1]).
start_link([S]) ->
supervisor:start_link({local, my_sup}, ?MODULE, [S]).
init([S]) ->
Db = {db,{db,start_link,[S]}      ,permanent,5000,worker,[db]},

{ok,{{one_for_one, 3, 10}, [Db]}}.
         


Code:

-module(db).
-behaviour(gen_server).
start_link([S]) ->
gen_server:start_link({local, db},?MODULE, [S], []).
init([S])->
   {ok, S}.
.........


I am unable to figure out ...! Some help appreciated.
Back to top View user's profile Send private message
zajda
Posted: Thu Mar 10, 2011 10:30 pm Reply with quote
User Joined: 22 Aug 2009 Posts: 83
Remove brackets from start_link clauses.

e.g. here: {db,start_link,[S]} <=> db:start_link(S) not db:start_link([S])

It is a bit different between start_link and init. You should analyze some fresh, working example (or some open source project on github).
Back to top View user's profile Send private message

Display posts from previous:  

All times are GMT
View next topic
View previous topic
Page 1 of 1
Erlang Forum - Trap Exit Forum Index  ~  Open Telecom Platform (OTP)
This forum is locked: you cannot post, reply to, or edit topics.

Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
Hosted by Erlang Solutions    |    Powered by phpBB and NoseBleed 1.14