How to create trigger or trigger prototype for not yet existing item?

[minri]

I am trying to create template for our FreeRADIUS installations monitoring. I configured autodiscovery rule to discover all the items from the status. And I would like to keep it that way because FreeRADIUS gives out quite a few statistics items.

And I want to add trigger to check if radiusd is answering the requests. It needs to combine several items. E.g. at very least to check if Accounting-Responses is about equal to Accounting-Requests. But I cannot create the trigger because at the time items for Accounting-Requests and Accounting-Responses do not exist yet.

So how can I create such trigger?

[cyber]

If you have discovery with item prototypes, then you just add trigger prototypes...

https://www.zabbix.com/documentation/current/en/manual/discovery/low_level_discovery/trigger_prototypes

[minri]

With trigger prototypes I can easily add trigger per item. And that trigger would react only to that one item.

What I want is to add trigger which combines several from discovered items. E.g. DISCOVERED_ITEM3 < DISCOVERED_ITEM5*0.90.

[cyber]

ah ... got the point...
But I'm afraid you cannot do that via discovery.. As you pointed, discovery deals with a single item at once and does not mix them..

[minri]

I could do it not via discovery. But anyway Zabbix does not allow to create trigger for the item which not yet exists.

So the question was about that - is it possible to create Zabbix trigger which points to not yet existing item?

[cyber]

Nope....you can not do that..