How to check number of processes per CPU using zabbix

zabbix

By default zabbix is able to check the total number of processes on a machine and triggers and error if these are above 300.

Clearly this doesn't work well for bigger machines. I do have a server with 32 codes and obviously 300 processes would be nothing for this machine.

I do want to change this rule to trigger a warning if the number of process per CPU is greater than 300.

This trigger is inside linux template and is named "Too many processes on {HOST.NAME}", the default values is "{Template OS Linux:proc.num[].avg(5m)}>300"

I tried to write something like {Template OS Linux:proc.num[].avg(5m)}/{Template OS Linux:system.cpu.num}>300 but it seems that zabbix (2.2) doesnt like this trigger expression.

Incorrect trigger expression. Check expression part starting from "/{Template OS Linux:system.cpu.num}>300".

What is the correct way to re-configure this check?

Best Answer

The correct syntax for item references in trigger expressions is:

{host:item.func()}

In your particular case, the func() part is missing after system.cpu.num, so the correct expression would be:

{Template OS Linux:proc.num[].avg(5m)}/{Template OS Linux:system.cpu.num.last()}>300

Note that if you are not comfortable with editing trigger expressions by hand, you can use the "Add" button on the right of expression which brings up a simple wizard:

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