I'm honestly not sure how gracefully q() kills the VM, but both Chan and I are giving suggestions for when you run boss:stop().
If you are going want to shut down gracefully, then I'd suggest boss:stop(), followed by q(). Then you can be sure your shutdown scripts have been run. That said, there are obviously numerous reasons a VM could be shut down instantly and without a proper shutdown (kill -9, power failure, kernel panic, etc). If you can, I recommend building around that kind of restriction, rather than relying on a "clean shutdown" every time. -- Jesse Gumm Owner, Sigma Star Systems 414.940.4866 || sigma-star.com || @jessegumm On Aug 6, 2014 5:36 AM, "chan sisowath" <[email protected]> wrote: > this code should work :). > > as jesse suggested > > > -module(test_script). > > -export([init/0, stop/1]). > -export([watch_boss/0]). > > > init() -> > Pid = spawn(?MODULE, watch_boss, []), > io:format("~n~n<<<< -------- init -------- script --------->> Pid ~p > ~n~n",[Pid]), > {ok, []}. > > stop(_) -> > []. > > watch_boss() -> > Ref = monitor(process, boss_web), > receive > {Reason, _, process, {boss_web, _}, _} -> > %% call my awesome script > io:format("~n~n<<<< -------- stop -------- script --------->> > ~p ~p<<---~n~n",[Ref, Reason]) > end. > > > 2014-08-06 15:19 GMT+08:00 Caiyun Deng <[email protected]>: > >> Does your stop/1 in the priv/init will be called when the server stop? >> >> 在 2014年8月6日星期三UTC+8下午2时40分52秒，mihawk写道： >>> >>> it is called when reloaded: >>> here https://github.com/ChicagoBoss/ChicagoBoss/blob/ >>> master/src/boss/boss_web_controller.erl#L131 >>> >>> but it is called also when boss_web_controller terminate: >>> >>> https://github.com/ChicagoBoss/ChicagoBoss/blob/ >>> master/src/boss/boss_web_controller.erl#L32 >>> >>> as far as i know >>> >>> >>> 2014-08-06 14:23 GMT+08:00 Caiyun Deng <[email protected]>: >>> >>>> I also tried stop/1 in priv/init, it does not work. >>>> But it didn't say the stop/1 will execute when the server stop. It just >>>> say that "stop is executed if the script is ever reloaded". >>>> >>>> 在 2014年8月6日星期三UTC+8下午1时38分06秒，mihawk写道： >>>>> >>>>> hi, >>>>> >>>>> same as init >>>>> >>>>> just implement stop/1 in you module piv/init >>>>> if it doesn't work just make an issue. >>>>> >>>>> chan >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> 2014-08-06 12:51 GMT+08:00 Caiyun Deng <[email protected]>: >>>>> >>>>>> Hi! I tried it, I typed "q()" in ./init-dev.sh and "./init.sh stop" >>>>>> in the production mode, but it does not work. >>>>>> spawn(fun() -> monitor_stop() end), >>>>>> monitor_stop() -> >>>>>> ?TRACE_VAR(monitor_stop), >>>>>> Ref = erlang:monitor(process, boss_sup), >>>>>> receive >>>>>> Msg -> >>>>>> ?TRACE_VAR(Msg), >>>>>> monitor_stop() >>>>>> end. >>>>>> >>>>>> >>>>>> >>>>>> 在 2014年8月6日星期三UTC+8上午3时02分11秒，Jesse Gumm写道： >>>>>>> >>>>>>> There's not currently (As far as I know) a standard way to do that, >>>>>>> but you could use a monitor to achieve it. >>>>>>> >>>>>>> Ref = monitor(process, boss_sup), >>>>>>> receive >>>>>>> {'DOWN', _, process, {boss_sup, _}, _} -> >>>>>>> run_my_other_shutdown_scripts() >>>>>>> end. >>>>>>> >>>>>>> -Jesse >>>>>>> >>>>>>> On Mon, Aug 4, 2014 at 4:16 AM, Caiyun Deng <[email protected]> >>>>>>> wrote: >>>>>>> > Hi! >>>>>>> > When i want to do something at the server start, I can do >>>>>>> something in >>>>>>> > priv/init. >>>>>>> > But when i want to do something at the server stop, How can i do? >>>>>>> > >>>>>>> > -- >>>>>>> > You received this message because you are subscribed to the Google >>>>>>> Groups >>>>>>> > "ChicagoBoss" group. >>>>>>> > To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an >>>>>>> > email to [email protected]. >>>>>>> > Visit this group at http://groups.google.com/group/chicagoboss. >>>>>>> > To view this discussion on the web visit >>>>>>> > https://groups.google.com/d/msgid/chicagoboss/b1c56929-e5ac- >>>>>>> 4990-ba10-6a3188e49ed2%40googlegroups.com. >>>>>>> > >>>>>>> > For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Jesse Gumm >>>>>>> Owner, Sigma Star Systems >>>>>>> 414.940.4866 || sigma-star.com || @jessegumm >>>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "ChicagoBoss" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> Visit this group at http://groups.google.com/group/chicagoboss. >>>>>> To view this discussion on the web visit https://groups.google.com/d/ >>>>>> msgid/chicagoboss/bd266859-2009-46bb-8655-0a91df5595a0%40googl >>>>>> egroups.com >>>>>> <https://groups.google.com/d/msgid/chicagoboss/bd266859-2009-46bb-8655-0a91df5595a0%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "ChicagoBoss" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> Visit this group at http://groups.google.com/group/chicagoboss. >>>> To view this discussion on the web visit https://groups.google.com/d/ >>>> msgid/chicagoboss/f5b9ee23-79d7-4351-875f-cf003d634e7f% >>>> 40googlegroups.com >>>> <https://groups.google.com/d/msgid/chicagoboss/f5b9ee23-79d7-4351-875f-cf003d634e7f%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "ChicagoBoss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> Visit this group at http://groups.google.com/group/chicagoboss. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/chicagoboss/27e12e81-9d85-4cdf-a871-4a2caf806012%40googlegroups.com >> <https://groups.google.com/d/msgid/chicagoboss/27e12e81-9d85-4cdf-a871-4a2caf806012%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "ChicagoBoss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > Visit this group at http://groups.google.com/group/chicagoboss. > To view this discussion on the web visit > https://groups.google.com/d/msgid/chicagoboss/CAB-Ofhnupg4uuEE_9amxThE_gbDqf9TqdokaZmnJZ4%3DiVNbcFA%40mail.gmail.com > <https://groups.google.com/d/msgid/chicagoboss/CAB-Ofhnupg4uuEE_9amxThE_gbDqf9TqdokaZmnJZ4%3DiVNbcFA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "ChicagoBoss" group. 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