Re: Asyn daemon + console + log

[Rod Nussbaumer <bomr@triumf.ca>]

We run IOCs in Gnu screen sessions, accomplishing all three of your 
requirements. The screen sessions are started in multi-user mode, 
through some scripting in the init system. This is accomplished on 
headless systems by exploiting the 'stuff' command of the screen 
applicaton to stuff commandlines into the screen session to launch the 
IOC application(s). Logging is done by screen, and log rotation using 
conventional logrotate tools.

Users use ssh to connect to the IOC host, and then connect to the screen 
session. This part is augmented with a GUI tool which runs on a common 
server host that lets users browse lists of IOCs and connect to sessions 
by clicking on menu items.

Rod Nussbaumer
TRIUMF,
Vancouver, Canada


On 11/28/2016 08:40 AM, Mark Rivers wrote:
> We use procServ to handle tasks 1 and 3, and logrotate for task 2.  A
> simple etc/init.d script can be used to start the procServ/IOC.
>
> https://sourceforge.net/projects/procserv/
>
> Mark
>
> *From:* tech-talk-bounces@aps.anl.gov
> [mailto:tech-talk-bounces@aps.anl.gov] *On Behalf Of *Benoit RAT
> *Sent:* Monday, November 28, 2016 10:06 AM
> *To:* tech-talk@aps.anl.gov list
> *Subject:* Asyn daemon + console + log
>
> Hi guys,
>
> I was wondering if someone could help me implement the following:
>
>     * Already done: I need to start my Asyn IOC as a daemon so that it
>       is executed at startup (A simple /etc/init.d/ scripts is doing the
>       job)
>     * Already done: I need to store all the outputs of my IOC into a
>       file (into /var/log/asyn/xxxxx.log with a logrotate to avoid
>       getting a problem with size)
>     * I want the user able to connect to the epics-ioc console (Maybe
>       through /dev/ttySxx)
>
> I have manage to get the two first thing working but I can not get the
> combination of the three. Someone has an idea, is it possible to access
> to the console?
>
> Maybe running the IOC as a daemon is not the best solution, but I would
> really like to have my IOC started when I power on my rack.
>
>
> --
>
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>
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>
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