UNKNOWN: The node requested does not exist. You may be trying to access the '/' node.

[devopski]

Hello,

I am struggling with this error in Nagios XI:
UNKNOWN: The node (/opt/minio) requested does not exist. You may be trying to access the '/' node.

I configured passive check like this:
%HOSTNAME%|Minio Space|30 = /disk/logical/|opt|minio --warning 20 --critical 65 --units Gi

df -h command output:

[jomann09]

This is definitely an NCPA issue and not a NRDP issue, you might want to post on the NCPA repo https://github.com/NagiosEnterprises/ncpa since it will get better results. Are you able to see the /opt/minio in the list when you look at the /disk/logical API endpoint for NCPA?

[devopski]

I tried hit API from Nagios VM but without success.

Checked Nagios VM with netstat:

Checked Minio VM with netstat:

I guess it might be network issue, but on the other hand other passive metrics can still be accessed from Nagios.