Re: [concierge-dev] Is there a way to prevent quit and exit ?

[Jan Rellermeyer <rellermeyer@xxxxxxxxxxx>]

I think this is a good point. Maybe we should be adding a property to Concierge (or the shell but I would guess it would be more general to handle this in the framework as other management interfaces would also benefit from it) that makes it easier to embed into a systemd environment.

 

I will try and code something up as soon as I have a few spare cycles.

 

--Jan.

 

From: concierge-dev-bounces@xxxxxxxxxxx [mailto:concierge-dev-bounces@xxxxxxxxxxx] On Behalf Of Cristiano Gavião
Sent: Wednesday, January 27, 2016 6:23 AM
To: concierge-dev@xxxxxxxxxxx
Subject: Re: [concierge-dev] Is there a way to prevent quit and exit ?

 

Hi Jochen and Tim,

systemd is a great piece of software, very powerful and flexible. It can handle JVM and other kind of crash nicely if well configured.
you can even set the service to be restarted in case of any failure... see Restart= in [1]

but the problem (I think) is the osgi console quit and exit do not return any error exit code or signal that could be tracked by it (at least I think it returns 0, but have not sure).

we can set systemd to also restart always, but this probably will make it restart even if I stop de service manually.


[1] - http://0pointer.de/public/systemd-man/systemd.service.html

regards,

Cristiano

On 27-01-2016 05:54, Tim Verbelen wrote:

Hi Cristiano,

Besides a user stopping the framework from the console, there is also the possibility of an unexpected error in the JVM that crashes the process.

Maybe another option to achieve what you want would be to monitor the Java process and automatically restart it when it was stopped outside of the systemd service (i.e. terminal exit or crash).
You can also use the existing storage directory to restart the framework then in exactly its previous state.

Best regards,

Tim



On 01/27/2016 03:02 AM, Cristiano Gavião wrote:

Hi again,

I'm setting the container to be started as linux systemd service and detach the console using linux screen.

when necessary I would like to stop/restart the container using only the systemd service commands (through kill TERM signal). Then I'm thinking in restrict the ways to exit/quit from console.

is there anything I can do to achieve that ?

thanks,

Cristiano
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