Node Down

hs08

My node have below setting :

Node Warning Level 10 seconds

Statistic Collection 2 minutes

Polling Interval 120 seconds

With above threshold why node with downtime less than 1 minutes still captured? If the polling set to 2 minutes in my mind orion will generate an event if there a node down more than 2 minutes.

donrobert5

It looks like it is is calculating more than the polling interval.  It is off by one minute.  That is expected as it seems you edited the node warning level to 10 seconds from 120 seconds while retaining the Polling Interval.

The default Node Warning Level interval is 120 seconds.
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-setting-the-node-warning-level-sw2042.htm

Polling intervals set the amount of time between polling. When the time passes (in seconds), polling starts by contacting monitored nodes. If polling starts and does not receive a response within the timeout interval, an unknown response enters and displays. The timeout amount sets the amount of time SolarWinds Platform products wait to process and receive responses. Depending on the processing load, you may need to extend the timeout.

https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-polling-intervals-sw1826.htm

Base on your screenshot, try changing the warning level to 60 seconds.