Hello,
We have 3 identical hosts monitored mostly via zabbix agent. One item per host is monitored via SNMPv2 agent (with interval 2m).
These hosts are also monitored (via SNMP) by another monitoring software which is out of my control.
Hosts works under CentOS 6 control. Load level of these hosts is very similar.
The hosts are monitored from one template so any parameters are the same.
Zabbix server get timeout for SNMP request sended by zabbix's SNMPv2 agent for only one of these 3 hosts. But when I send request manually by snmpget I receive answer immediately.
I observed high peaks of snmpd CPU usage on all three hosts. Suspect this high CPU usage could be a reason but others two hosts answers without timeout.
Also key zabbix[host,snmp,available] return 0 only on this one host.
In logs I can see:
23701:20190919:084812.446 SNMP agent item "snmp.netstat" on host "server-010" failed: first network error, wait for 15 seconds
23706:20190919:084912.035 temporarily disabling SNMP agent checks on host "server-010": host unavailable
Have you any ideas why only from one server zabbix get timeout?
Is any way to debug this?
We have 3 identical hosts monitored mostly via zabbix agent. One item per host is monitored via SNMPv2 agent (with interval 2m).
These hosts are also monitored (via SNMP) by another monitoring software which is out of my control.
Hosts works under CentOS 6 control. Load level of these hosts is very similar.
The hosts are monitored from one template so any parameters are the same.
Zabbix server get timeout for SNMP request sended by zabbix's SNMPv2 agent for only one of these 3 hosts. But when I send request manually by snmpget I receive answer immediately.
I observed high peaks of snmpd CPU usage on all three hosts. Suspect this high CPU usage could be a reason but others two hosts answers without timeout.
Also key zabbix[host,snmp,available] return 0 only on this one host.
In logs I can see:
23701:20190919:084812.446 SNMP agent item "snmp.netstat" on host "server-010" failed: first network error, wait for 15 seconds
23706:20190919:084912.035 temporarily disabling SNMP agent checks on host "server-010": host unavailable
Have you any ideas why only from one server zabbix get timeout?
Is any way to debug this?