Network map with item value from Vmware plugin - Return UNKNOWN value

[lyonmarco]

Good morning,
this is my first post in the forum therefore please tell me if I posted this in the wrong place. First of all thank you all, this precious community helped me a lot in solving many issue with my Zabbix instance. I have Zabbix appliance installed, latest version, that is monitoring several ESXi hypervisors and a Virtual Center. I configured the Vmware template for grabbing info from Vcenter and all was good: the system automatically discovered the ESXi, VMs, datastore and many other information. I configured a Network map showing the status of each ESXi server and no problem so far. My problem is when I want to add an item gathered with Vmware template in the map, for example list the number of guest VMs in each hypervisor.

Following the documentation, I have created a image in the map and configured the label like that:

Number of VMs: {?last(/A.B.C.D/vmware.hv.vm.num[https://servername/sdk,37393150-3636-5a43-4a31-XXXXXXXXXXXX])}

Where:

A.B.C.D is the ip address of the Vcenter
servername: is the hostname of the vcenter

I tried different combination of the parameters but the outcome is always the same (for instance, I tried with A.B.C.D as the IP of the hypervisor)

The label return the value "UNKNOWN" therefore for sure I'm doing something wrong.

The item "vmware.hv.vm.num[https://servername/sdk,37393150-3636-5a43-4a31-XXXXXXXXXXXX]" correctly reports the number of VMs guest present in the hypervisor queried (I checked directly under the items tab.

Do you have any suggestion on how I can configured the correct query in the label?

Thank you,
LM

[lyonmarco]

Anyone that can help with this request?

Thank you,
LM

[Hamardaban]

Please read in the documentation about format of "Expression macros".

https://www.zabbix.com/documentation/current/en/manual/config/macros/expression_macros

In a simple way:
{?avg(/_HOST_/_KEY_)}

_HOST_ - Host name (not Visible name) ( In terms of the zabbix https://www.zabbix.com/documentation...fig/hosts/host )
_KEY_ - Item key ( In terms of the zabbix https://www.zabbix.com/documentation...fig/items/item )

[lyonmarco]

Hi, thank you for the reply.
I already red that documentation and based on it I created the expression reported in this thread - {?last(/A.B.C.D/vmware.hv.vm.num[https://servername/sdk,37393150-3636-5a43-4a31-XXXXXXXXXXXX])}.

I keep receiving the result *Unknown*. I think the error is in the two parameters of the item key that are, as per documentation: vmware.hv.vm.num[{$VMWARE.URL},{$VMWARE.HV.UUID}]

As you can see I inserted the two parameters by hand but nothing changed.

Any idea?

Thanks,
LM

[lyonmarco]

I solved! Of course it was my mistake: I wrongly created an image object in the map, I tried using an host object. This was my error.

Thank you again for the follow up, really appreciate.

LM