Re: troubles with process handling

[Paul Krizak]

Process statements require a signal, AFAIK.  You might try using a 
benign signal like HUP (if your process doesn't respond to HUP) so that 
you don't kill or restart the process, but the class definition works 
anyway.

I've never used processes: in this way before, however, so I'm not sure.

You can get a list of signals you can send to a process by running 'kill 
-l'.

Some benign signals that come to mind are SIGCONT (continue), SIGALRM 
(alarm clock), SIGURG (???)...there's bound to be a signal you can use 
that your processes simply ignore.

Paul Krizak                         5900 E. Ben White Blvd. MS 625
Advanced Micro Devices              Austin, TX  78741
Linux/Unix Systems Engineering      Phone: (512) 602-8775
Microprocessor Solutions Sector


Guillaume Rousse wrote:
> I'd like to manage process on clients to make sure some processes are
> running, and some others are not. I don't want to send processes signals
> directly, I prefer to use system service scripts, so as to take care of
> lock file, etc... I once used restart facility, allowing to launch a
> shell command, but only if a signal was not found, thus unable to deal
> with shutting down processes.
>
> I tries to use the define and elsedefine facilities, in a similar manner
> as I do for managing installed packages. However, it appears to trigger
> errors in cfengine.
>
> The following syntax:
> "sshd" elsedefine=need_start_sshd
>
> triggers the following error message:
> Insufficient or incomplete processes statement
>
> I tested it with cfengine 2.1.12 and 2.1.15.