system.cpu.util returns no data

[seanys]

We have two identical physical RHEL6 servers, both using the same Template (Template_Linux_Monitor_CPU_Default) but only one server returns data for the following enabled "Zabbix agent (active)" monitors:

system.cpu.util[,idle,avg1]
system.cpu.util[,iowait,avg1]
system.cpu.util[,system,avg1]

We don't have shell access to the Zabbix server so I've tried testing by installing zabbix22-2.2.11-1.el7.x86_64.rpm (from EPEL) on another RHEL server and running zabbix_get (as per https://www.zabbix.com/documentation...ges/zabbix_get).

I tried monitors for the server that *is* returning data to the Zabbix server but zabbix_get didn't return anything at all.

E.g.

zabbix_get -s 10.1.122.139 -p 10050 -k "system.swap.size[,total]"
zabbix_get -s 10.1.122.139 -p 10050 -k "system.cpu.util[,idle,avg1]"

Suggestions?

[kloczek]

We have two identical physical RHEL6 servers, both using the same Template (Template_Linux_Monitor_CPU_Default) but only one server returns data for the following enabled "Zabbix agent (active)" monitors:

system.cpu.util[,idle,avg1]
system.cpu.util[,iowait,avg1]
system.cpu.util[,system,avg1]

Probably because you are using on other host passive agent.
Nevertheless you should be not using passive items as passive monitoring does not scale up well.
In other words: everything is OK

[seanys]

In other words: everything is OK

How is this correct? There's no data for, what I believe are, standard monitors.

[glebs.ivanovskis]

Probably IP address of the machine you are zabbix_get'ing from is not on the agent's Server list.

[kloczek]

How is this correct? There's no data for, what I believe are, standard monitors.

Standard templates are using passive items. If you've changed agent settings to active one automatically you've blocked monitoring such host over passive items.