Checking multiple different procs in one service check

[Hari Sekhon]

Hi,

   I have a need to test a collection of procs and their arguments in 
one service, I was going to post to the list to ask for suggestions, but 
then I thought to check NagiosExchange and found a couple of plugins, 
but nothing that suited my need, specifically they were orientated to 
testing if a process name is running, and the number of processes of a 
given name running, but they did not allow me to specify arguments that 
those processes must be running.

I found this to be severely limiting when checking on collections of 
interdependent scripts (I don't want to just check how many "bash"s or 
"python"s are running...)

So I've quickly written my own plugin in Bash to do this and I've posted 
it to NagiosExchange in case anyone else has this same requirement.

The script is basically a wrapper around the standard check_procs 
allowing you to test several detailed services in one service check 
which gives a lot more intelligence that the traditional check if a 
single process is running, especially if you have any stack of 
programs/scripts/operations that all need to be running but you don't 
want to monitor them individually or you have too many of them to 
practically monitor individually.

It currently takes a really nice and simple config file so it's easy to 
have a stack of specific things to test.

Feedback is welcome and improvements will be made as needed/requested. I 
was considering adding support for process states and process metrics 
other than just the number of processes, but I don't (yet) use these 
options in check_procs and so I decided to keep the config file very 
very simple and clean, rather than bloat it with options nobody is 
using. I'll revise the plugin as I get requests from people doing 
specific things.


You can find the plugin here:

http://www.nagiosexchange.org/cgi-bin/page.cgi?g=Detailed%2F2649.html;d=1

So there you go, a question answered and a new plugin that will 
hopefully be generally useful for specific multi process checking.

-h

-- 
Hari Sekhon


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