Any additional SNMP/NAGIOS documentation...

[Stanley Hopcroft]

Dear Sir,

I am writing to to thank you for your letter and say,


> From: atonns at mail.ivillage.com
> Subject: RE: [Nagios-users] Any additional SNMP/NAGIOS documentation...
> 
> I found the SNMP support in Nagios lacking. The check_snmp plugin is
> seemingly a C wrapper around Net-SNMP's snmpget program.
>

There are some high class Net::SNMP based plugins in /contrib ( aka 
'untested, unintegrated and unknown quality' Have a look, there are two 
Al Tobey plugins [Mr Tobey is a CPAN author] and a Dave Alden snmp 
plugin that look interesting. FWIW, I think Net::SNMP is the only way to 
fly with snmp checks; the non-blocking IO support is great). 

BTW, you can always submit an FAQ if you think the docco needs
improving. See ttp://www.nagios.org/faqs/addfaq.php
 
> However, I did have the time/resources to write my own plugins using perl,
> Net::SNMP and SNMPv3 (which was not support at the time). Given that, I
> think Nagios is working out well.

> I just wish the embedded perl portion of
> it didn't leak as much (I have to restart the nagios daemon once a day).
> 

Well all you have to do is interest Doug McEachern or someone of his
ilke to look after this part of the code, or wait until version 2 
whereupon the leaks will be far less visible because IIRC the Perl 
intrepreter will be deallocated and reinitialised periodically by 
Nagios.

If you are serious about leaks, you could probably do this yourself or 
backport the 2.0 changes.

I am quite serious about the former remark. To do embedded Perl well
needs someone with a high order of Perl skills and a knowledge of or at 
least extensive familiarity with Perl internals and the Perl C API.

The incumbent maintainer - me - does _not_ have those skills.

You may also want to quantify your remarks: I am using about 50 Perl
extensively customised plugins (all object based including HTML::Parser
clients) along with some of the standard plugins to monitor 370 -
including 40 passive - services on 190 hosts.

I can probably let it run for several weeks (on a 256 MB system with 
apache, sendmail etc) before restarting. At that time its memory usage 
is about 80 MB.

> Anthony Tonns, UNIX Administrator - atonns at mail.ivillage.com 

Yours sincerely.

-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.


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