[189386] in North American Network Operators' Group
Re: SNMP "bridging"/proxy?
daemon@ATHENA.MIT.EDU (Josh Reynolds)
Mon May 23 17:58:28 2016
X-Original-To: nanog@nanog.org
In-Reply-To: <CAB69EHgZ476AK3hDvkCX_Bb8h=EB1KkyaC7T3kGifqLrBUOWpw@mail.gmail.com>
Date: Mon, 23 May 2016 16:58:25 -0500
From: Josh Reynolds <josh@kyneticwifi.com>
To: Eric Kuhnke <eric.kuhnke@gmail.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
+1
On May 23, 2016 4:53 PM, "Eric Kuhnke" <eric.kuhnke@gmail.com> wrote:
> This doesn't scale on a large cacti installation with hundreds of hosts a=
nd
> 60-second poller intervals. Cacti data input method scripts spawn a new p=
hp
> worker for each data acquisition target (they do NOT use the 'spine' SNMP
> poller).
>
> Exposing the data via SNMP on the host to be monitored distributes the CP=
U
> load individually onto each host (example: an 'extend' script in the
> snmpd.conf which runs "curl http://localhost/server-status" for apache2
> status and parses the results) rather than centralizing it on the cacti
> host.
>
> This allows cacti or opennms or anything else to poll the hosts to be
> monitored via something that scales better than php script workers, using
> the 'spine' SNMP data acquisition method and the equivalent in other snmp
> polling platforms.
>
>
> On Sat, May 21, 2016 at 6:03 AM, Eric Lindsj=C3=B6 <eric@emj.se> wrote:
>
> > Hi Nathan,
> >
> > You should probably write a cacti script to ingest the data instead of
> > this SNMP proxy thing. Writing scripts to ingest data into cacti is
> simple,
> > you just need to output the values you want in key: value format and th=
en
> > do some clicking in cacti. There are good docs for how to do this.
> >
> > -- emj
> >
> >
> > On 05/21/2016 08:11 AM, Nathan Anderson wrote:
> >
> >> Hey, thanks guys! I had never really looked that deeply into Net-SNMP
> >> and had only ever installed it either to use as a client
> (snmpget/snmpwalk)
> >> or a basic agent w/ standard MIBs for the host it's running on, so I w=
as
> >> unaware of its extensibility. And it even looks like it ships with a
> Perl
> >> module. That sounds like a perfect solution; thanks for pointing me i=
n
> the
> >> right direction.
> >>
> >> -- Nathan
> >>
> >
> >
>
