Need help with upstart/init conf selecting wrong PID.

[Mathijs]

Hello there,

Thx for the help :).
I Now have the script as followed.
This seems to work, i can start/stop it via service, and if i kill or
stop the script from within the screen, service also see this.

Thank you very much.

---
description "MyApp - startup script"

start on runlevel [345]
stop on runlevel [016]

chdir /apps/inbox

script
        cd /apps/inbox
        exec su myapps -c "screen -D -m -S MYAPP java -jar MyApp.jar"
end script
---


On 2011-03-22 13:05, Evan Huus wrote:
> I'm not 100% sure of this, but I think it's because you have 'exec su'
> and 'screen', both of which do process manipulation (exec, fork, etc.)
> which is confusing it. I don't think it can handle two layers of
> those?
>
> It's worth trying to change your screen arguments to "-D -m -S etc"
> because according to man screen, the capital D argument is the same as
> the lower-case d argument except that it stops screen from forking.
>
> If this doesn't work, then I'm really not sure what the problem is,
> sorry. Maybe somebody else on the list will know.
>
> Cheers,
> Evan
>
> On Tue, Mar 22, 2011 at 6:24 AM, Mathijs <mathijs at smoeltje.nl> wrote:
>> Hello there,
>>
>> I don't know where to go with this question, so i hope i can try it here.
>>
>> I have created an upstart config to start an application via screen.
>> This way that application can be entered via screen when needed.
>>
>> The application starts correctly via the init conf, but it doesn't have the
>> correct PID.
>> I tried expect daemon, fork, and non, but this doesn't work.
>> With daemon and fork it starts, but not the correct PID, and status myapp,
>> thinks it is still running.
>> With no expect, it also starts, but then i thinks it isn't running anymore.
>>
>> What can i do to fix/track this problem?
>>
>> Here is the conf:
>> ---
>> description "MyApp - startup script"
>>
>> start on runlevel [2345]
>> stop on runlevel [016]
>>
>> expect daemon
>> #expect fork
>> console output
>>
>> script
>>         cd /apps/inbox
>>         exec su myapps -c "screen -d -m -S MYAPP java -jar MyApp.jar"
>> end script
>> ---
>>
>> --
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>>

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