count how many cameras have the status "empty"

[mateus_silva]

Hello

I'm using ZAbbix 6.4 and I need to monitor an image recording device (NVR) and I would like to create an item that displays how many cameras have the "empty" status, an item that shows how many cameras have the "connected" status and an item that shows how many have the "unconnect" status. I am using the following template: link

Once I have these items providing the correct count of the cameras' status I will then be able to insert this count into the NVR dashboard. Image below.



This template uses Discovery Rule and Item Prototype to find cameras and is working correctly. I can see the IP address of the cameras, the name of the Camera and the status (Connecting, Conneted, Unconnect, Empty, Disable) of each camera. Images below




Is it possible to create this type of item that counts the number of cameras with the status Empty, Connected and Unconnect?

[mateus_silva]

I managed to solve it by creating a calculated item with a function that counts (sums) how many cameras have a status:

- sum(last_foreach(//remoteCam_status_empty[*]))
- sum(last_foreach(//remoteCam_status_connected[*]))
- sum(last_foreach(//remoteCam_status_unconnect[*]))

So I created prototype items for each status in the Discovery Rule:

Key -> remoteCam_status_empty[{#SNMPINDEX}]
Key -> remoteCam_status_connected[{#SNMPINDEX}]
Key -> remoteCam_status_unconnect[{#SNMPINDEX}]

I also applied preprocessing to each prototype item where the value of the status in question is replaced by 1 and the other statuses are replaced by 0.

[ISiroshtan]

I think it's possible, but giving you exact instruction how to do it is hard for me, as I have no personal lab zabbix atm and don't want to test this on production one. So mostly it is just a mental gymnastics in regards to how it should work, so typos and mistakes are possible

In essence you would need to create a calculated item with usage of aggregated calculation. It should end something like (example for Empty):

count(last_foreach(//remoteCam[status*]),"like","Empty")

[mateus_silva]

I managed to solve it by creating a calculated item with a function that counts (sums) how many cameras have a status:

- sum(last_foreach(//remoteCam_status_empty[*]))
- sum(last_foreach(//remoteCam_status_connected[*]))
- sum(last_foreach(//remoteCam_status_unconnect[*]))

So I created prototype items for each status in the Discovery Rule:

Key -> remoteCam_status_empty[{#SNMPINDEX}]
Key -> remoteCam_status_connected[{#SNMPINDEX}]
Key -> remoteCam_status_unconnect[{#SNMPINDEX}]

I also applied preprocessing to each prototype item where the value of the status in question is replaced by 1 and the other statuses are replaced by 0.