Creating Host Triggers
Video Lecture
Description
In this section, we create some basic triggers.
Triggers are re-evaluated when the Zabbix server gets new data for an item that appears in the trigger expression.
Additionally, if the trigger contains a time based function, the history syncer process will also recalculate it every 30 seconds.
Examples of time-based functions are nodata(), date(), dayofmonth(), dayofweek(), time(), now().
| Name | Severity | Expression |
|---|---|---|
| NODATA 60 seconds | Disaster | nodata(/host/agent.ping,60)=1 |
| Less than 5GB free | High | last(/host/vfs.fs.size[/,free])<5000000000 |
| High CPU Usage 75% for 2 minutes | Warning | avg(/host/system.cpu.util[,user],2m)>75 |