manual:config:triggers

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manual:config:triggers [2014/04/11 13:35]
127.0.0.1 external edit
manual:config:triggers [2019/02/11 06:57] (current)
martins-v triggers are evaluated based on history only
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 Trigger status (the expression) is recalculated every time Zabbix server receives a new value that is part of the expression. ​ Trigger status (the expression) is recalculated every time Zabbix server receives a new value that is part of the expression. ​
  
-If time-based functions (**nodata()**,​ **date()**, **dayofmonth()**,​ **dayofweek()**,​ **time()**, **now()**) ​are used in the expression, the trigger is recalculated every 30 seconds by a zabbix ​//timer// process.+Triggers ​are evaluated based on [[:manual/config/items/history_and_trends|history]] data only; trend data are never considered.
  
-You can [[2.0:manual:​config:​triggers:​expression|build trigger expressions]] with different degrees of complexity.+If time-based functions (**nodata()**,​ **date()**, **dayofmonth()**,​ **dayofweek()**,​ **time()**, **now()**) are used in the expression, the trigger is recalculated every 30 seconds by a zabbix //timer// process. If both time-based and non-time-based functions are used in an expression, it is recalculated when a new value is received **and** every 30 seconds. 
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 +You can [[manual:​config:​triggers:​expression|build trigger expressions]] with different degrees of complexity.