SNMP "bridging"/proxy?

Josh Reynolds josh at kyneticwifi.com
Mon May 23 21:58:25 UTC 2016


+1
On May 23, 2016 4:53 PM, "Eric Kuhnke" <eric.kuhnke at gmail.com> wrote:

> This doesn't scale on a large cacti installation with hundreds of hosts and
> 60-second poller intervals. Cacti data input method scripts spawn a new php
> 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 CPU
> 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 Lindsjö <eric at 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 then
> > 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 was
> >> 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 in
> the
> >> right direction.
> >>
> >> -- Nathan
> >>
> >
> >
>


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