Internal Events

[tcilmo]

The Zabbix documentation outlines internal events as the following:

• an item changes state from 'normal' to 'unsupported'
• an item changes state from 'unsupported' to 'normal'
• a low-level discovery rule changes state from 'normal' to 'unsupported'
• a low-level discovery rule changes state from 'unsupported' to 'normal'
• a trigger changes state from 'normal' to 'unknown'
• a trigger changes state from 'unknown' to 'normal'

I want to understand more specifically what causes a trigger to change state from normal to unknown and vice versa.

Is it something like this?

1. Zabbix woke up and said “I need to calculate this trigger”
2. Currently it is not triggered (normal).
3. Now I’ll mark it unknown while I do the math.
4. Okay, I’ve done the math, it’s still not triggered , back to normal

Creating 2 internal trigger events in the process… Does that sound right? Anyone know for sure? Thoughts?