System log generates huge amount of entries "Clearing snmpd.log due to log overflow"

System log generates huge amount of entries "Clearing snmpd.log due to log overflow"

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Created On 01/17/23 09:16 AM - Last Modified 01/17/24 04:05 AM


Symptom


  • System log contains a lot of logs with the content "Clearing snmpd.log due to log overflow"
  • It is seen for one of the nodes in HA setup (Firewall or Panorama) only
  • For the node which generates multiple system logs, SNMP polling fails
  • SNMP polling is executed at aggressive rate like multiple OIDs are requested every 1 minute by a monitoring solution using SNMP (Zabbix, Cacti, Solarwinds or any using SNMP bulk requests)

Environment


  • Palo Alto Firewalls or Panorama
  • PAN-OS 9.1 and above
  • High Availability (HA)

Cause


  • SNMP settings are configured only in one of the nodes/peers in a HA setup
  • This is assuming that this configuration will be synchronized.
  • SNMP settings are not synced between HA nodes.

Resolution


  1. Configure SNMP settings on both the peers under GUI: Device > Setup > Operations > SNMP Setup
  2. Commit the configuration.
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