Trigger not resolved after given time frame

[markfree]

Zabbix 7.4

Hey guys.

I have an item that displays the status of a service. It should display something such as "1 (Up)" or "0 (Down)". It also has a "discard unchanged with hearbeat" of 1h.

I've added a trigger that creates an event whenever the state changes to any value within a given time frame.
Here's the trigger expression:

changecount(/host/service.state[{#SVC.FULL.NAME}],3h)>=1

My assumption is that the trigger should fire if there is at least 1 state change within 3h.
The event should be resolved if there are no state changes within that time frame.

However, I'm seeing new events as expected, but they are not resolved after 3h when there are no state changes.


To verify the "changecount" values that the trigger is evaluating, I added a calculated item with the same expression. It shows that the value is 0.


I don't see an issue with this trigger.
Any thoughts about this?

[BP_Vital]

Hello,

as manual states: "If a value is discarded, it is not saved in the database and Zabbix server has no knowledge that this value was received. No trigger expressions will be evaluated, as a result, no problems for related triggers will be created/resolved."

Maybe increasing "discard unchanged with hearbeat" from 1h to 4h (3 hours plus an extra overlap as in your case) will help?
Repeating values will be still discarded after 4h, but 4h time frame will be enough for trigger to resolve.

[cyber]

Repeating values will be still discarded after 4h, but 4h time frame will be enough for trigger to resolve.

nonono
"discard unchanged with hearbeat" with Xh ... there is no cleanup after X hours... it just discards on the fly the value, if there is no change... and additionally will save the "heartbeat", ie, one value every Xh, even if there is no change.

[BP_Vital]

nonono
"discard unchanged with hearbeat" with Xh ... there is no cleanup after X hours... it just discards on the fly the value, if there is no change... and additionally will save the "heartbeat", ie, one value every Xh, even if there is no change.

Ahem, my bad, it won't work, ty for pointing that.