Help with Trigger on simple UserParameter

[o-w]

Hey All,

I'm having trouble understanding triggers in Zabbix.

I have a UserParameter, CheckSamba, that runs on a linux system with zabbix-agent running. Values are being returned (0, 1, or 2). I see these values correctly in "latest data".

If I have a UserParameter setup. An Item setup (I selected "character" to handle the 0, 1 or 2).

Can you help me write a trigger that sets a high alert if CheckSamba comes back with a 1 or 2? Something like...

{hostname:CheckSamba()=(1|2)}

Thanks for any help.

[BDiE8VNy]

How about:

{example.com:CheckSamba.last()}>0

Where 'example.com' is your host, 'CheckSamba' is your item key and 'last()' is a trigger function that represents the last value of the corresponding item.

Btw, in your case "Numeric (unsigend)" is probably a better choice for "Type of information"

See:
Configuration of Triggers
Supported trigger functions

[o-w]

Thanks for the help.

One strange thing is that when I change the UserParameter item to be Numeric (unsigned), the "make trigger" button in the list of Items for a host disappears. I can go straight into the "Triggers" menu, and i notice it has a different interface. I don't understand why that button on the list of Items page only exists for text fields? (I see now it somehow helps create a different kind of trigger then the trigger page would... but idont get it).

I tried adding your suggestion as a "Trigger". However when I enter the regular expression you supply it returns

"Incorrect trigger expression. Check expression part starting from "{HOST:CheckSamba.last() } >0".

I did finally figure out the expression generator, and it came up with the exact same thing you suggested with no spaces and it took it!

{HOST:CheckSamba.last()}>0

Thanks for the help and discussion!