Change per second preprocessing. testing and testing real value can get value.
However, when an item is executed, symptoms such as no previous value or no execution are displayed.
Item value has none data like this

Zabbix-server availability is health, and other preprocessing are work normally.
Is there any way I can debug or take action on this symptom?
However, when an item is executed, symptoms such as no previous value or no execution are displayed.
Item value has none data like this
Zabbix-server availability is health, and other preprocessing are work normally.
Is there any way I can debug or take action on this symptom?
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