On usage of check_procs

[Marc Powell]

> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
> admin at lists.sourceforge.net] On Behalf Of Ralph.Grothe at itdz-berlin.de
> Sent: Wednesday, August 10, 2005 9:49 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] On usage of check_procs
> 
> Hello,
> 
> I have a little question regarding the usage of check_procs.
> 
> Somehow I feel the usage of check_procs could well be overkill
> because I only want to monitor if a certain single process (that
> doesn't fork) is still running.
> 

[snip]

> Nevertheless I'd like to use the ready made check_procs.
> 
> But I'm unsure about the correct usage of the ranges type of
> arguments for the options -w and -c.
> 
> Since either the process to monitor is running (which would be
> OK),
> or otherwise is not running (which would be CRITICLA),
> it doesn't make much sense to me to specify ranges (of numbers of
> processes)

Of course not in this specific usage. If you had a process that spawned
a number of children (ala apache) then ranges make sense.

> I thought I could use the check_procs for my purpose in such a
> (silly?) manner.
> Would that be one possible way how to check a single process for
> existence in the proc table?

By example --

./check_procs -c 1:1 -C init
OK - 1 processes running with command name init


> (well, if it was an un-wait-ed for child it could well be a
> zombie, so maybe a more sophisticated state check too was
> necessary?)
> 

Use the -s flag as appropriate.

[mpowell at gemini libexec]$ ./check_procs -c 1:1 -C init -s Z
CRITICAL - 0 processes running with command name init, STATE = Z

[mpowell at gemini libexec]$ ./check_procs -c 1:1 -C init -s S
OK - 1 processes running with command name init, STATE = S

--
Marc


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