Custom multiplier - macro in expression

[Noobz]

It seems that values can be multiplied by a macro alone, however the macro cannot be part of an expression
Custom multiplier value 1e-3 is fine
Custom multiplier value {#MACRO} is fine

Custom multiplier value 1e-{#MACRO} is NOT ACCEPTED

What is the way around this in the example where host is monitored by SNMP, item value and the scaling factor are in their own SNMP tables

Example
::1.377 = 29539
::2.377 = 3

The real value is 29539e-3 or 29.539

Thanks

[Noobz]

I've worked around this for now using JavaScript preprocessing with the exact same formula I wanted to use in the custom multiplier

[ripperSK]

I would suggest that you collect raw data from the SNMP item and from the value of SNMP scale factor item and use calculated item that calculates the real value by using formula of the previous two.

I hope I made it clear - if not please ask for clarification in the next post.

[Noobz]

I would suggest that you collect raw data from the SNMP item and from the value of SNMP scale factor item and use calculated item that calculates the real value by using formula of the previous two.

I hope I made it clear - if not please ask for clarification in the next post.

I raised a bug ticket regarding this, https://support.zabbix.com/browse/ZBX-18219 and hopefully it will be resolved soon.

[maclin]

Hi! A try to create sfp dom monitoring, and there are a lot of values with different data scales http://www.circitor.fr/Mibs/Html/C/C...SensorDataType
I added it as item prototype but it is not possible to add item prototype as custom multiplier

[maclin]

Opend issue, hope it will be resolved

https://support.zabbix.com/browse/ZBX-19795

[Noobz]

Hi! A try to create sfp dom monitoring, and there are a lot of values with different data scales http://www.circitor.fr/Mibs/Html/C/C...SensorDataType
I added it as item prototype but it is not possible to add item prototype as custom multiplier

Hi Maclin,

The host I was working on was a Cisco ASR using the Entity Sensor MIB. Between discovery rules with LLD macros, and JavaScript preprocessing, I have the whole thing automated.

[maclin]

Can you share it?

[Noobz]

Change .txt extension to .yaml - the forum wouldn't let me upload YAML file.