Treating a new custom script as a SNMP-like counter

[ithurtswhenidothis]

Hi, I created a new script that is queryable through the Zabbix agent. It's intended to grow constantly. I would like Zabbix to record the delta from the previous read (like it would with an SNMP counter).

So, if the data are:

10

25

30

57

Zabbix should record

10

15

5

17

I expected Zabbix to let me specify that this was a counter but I don't see a way to do that. Does anyone know what I'm missing?

Thanks

[Hamardaban]

Pls read https://www.zabbix.com/documentation...fig/items/item
search ITEM VALUE PREPROCESSING

Simple change

Calculate difference between the current and previous value. Evaluated as value-prev_value, where value - current value; prev_value - previously received value This setting can be useful to measure a constantly growing value. If the current value is smaller than the previous value, Zabbix discards that difference (stores nothing) and waits for another value. Only one change operation per item is allowed.