LLD Macro usage in calculated item prototype

[VACOM]

Hello Zabbix Friends,

I have a problem using calculated item prototypes in low level discovery.

Here it is:


# LLD is defined to read OID .1.3.6.1.2.1.43.11.1.1.5 with key prtMarkerSuppliesType.Discovery

As expected {#SNMPINDEX} is e.g. "1.1".
That works fine.

# One item prototype is in key prtMarkerSuppliesLevel.["{#SNMPINDEX}"]
That works fine.

# The calculated item prototype is defined as:

key=calc_Toner_Usage.["{#SNMPINDEX}"]
formula=last("prtMarkerSuppliesLevel.[\"{#SNMPINDEX}\"]")

Note: the formula is just for testing purposes

so far so good. But: the formula can not be evaluated on the host.
But why?

Does anyone have an idea?

I am using Zabbix 2.1.0.

Thank you.
Jan (VACOM)

[VACOM]

solved! function last() expected parameter.

[Navern]

My 2 cents, it should be in following view

last(key.[{#SNMPINDEX}], 0)

without this "0" as second argument calculated items don't work. It's not related to LLD.

[aib]

and my formula for Toner usage Item Prototype from LLD is:
Formula: 100*last(current_capacity.alt.["{#SNMPVALUE}"])/last(total_capacity.alt.["{#SNMPVALUE}"])

[Navern]

and my formula for Toner usage Item Prototype from LLD is:
Formula: 100*last(current_capacity.alt.["{#SNMPVALUE}"])/last(total_capacity.alt.["{#SNMPVALUE}"])

In zabbix 2.2 if you don't use it like 100*last(current_capacity.alt.["{#SNMPVALUE}"], 0)/last(total_capacity.alt.["{#SNMPVALUE}"], 0) it won't work. Correct me if i wrong.

And it's recommended that you use it like this according to official documentation:
100*last("current_capacity.alt.[\"{#SNMPVALUE}\"]", 0)/last("total_capacity.alt.[\"{#SNMPVALUE}\"]", 0)

[aib]

It works in 2.2.3 - see attached screenshots.

[Navern]

I have zabbix 2.2.1 and it wasn't working without second argument(it had given me much pain because of this).

Ok, it looks like it was fixed somehow