Yup – you’re both right – the view actually BROKE Observium – the view disabled too much for Observium to poll at all –
We ended up just going this we found in the forums
(in /opt/observium/config.php)
// Disable EtherLike-MIB $config['enable_ports_etherlike'] = 0; # Enable Polling EtherLike-MIB (doubles interface processing time)
// Disable FDB table polling $config['poller_modules']['fdb-table'] = 0;
// Disable ARP table polling $config['discovery_modules']['arp-table'] = 0;
Quite a big issue – without this – the 3850 switch CPU was going BONKERS and dropping packets… insane.
From: observium [mailto:observium-bounces@observium.org] On Behalf Of Derek Sent: Sunday, March 15, 2015 01:09 AM To: Observium Network Observation System Subject: Re: [Observium] High CPU on Cisco Switches
You have a lot of VLAN's? You can disable certain types of polling through Observium too.
On Sat, Mar 14, 2015 at 10:47 PM, Joseph L. Brunner <joe@affirmedsystems.commailto:joe@affirmedsystems.com> wrote: Team,
We had some cisco switches dropping packets with 99% cpu being polled by Observium.
We had to create a view which hides some arp and routing table objects to bring the CPU back down to normal levels
snmp-server view cutdown at excluded snmp-server view cutdown snmpUsmMIB excluded snmp-server view cutdown snmpVacmMIB excluded snmp-server view cutdown snmpCommunityMIB excluded snmp-server view cutdown ip.21 excluded snmp-server view cutdown ip.22 excluded snmp-server community ourcomm1 view cutdown RO
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