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Zabbix Aggregate for item.nodata (Zabbix 5)
Hi friends, I am trying to find a solution within Zabbix to be able to grpavg items that are in nodata state. I know this kind of makes no sense as nodata is a trigger condition.
My goal is to have a grpavg item and trigger that alert when <x> number of item <y> are in nodata state for <time>.
Right now I have the following, and it works as an indicator (if the average number of values in past duration < threshold, trigger).
Item
Trigger
Any help or ideas would be appreciated. I might have done a crap job of explaining so I am happy to clarify if needed 
My goal is to have a grpavg item and trigger that alert when <x> number of item <y> are in nodata state for <time>.
Right now I have the following, and it works as an indicator (if the average number of values in past duration < threshold, trigger).
Item
Code:
grpavg["{HOST.NAME}","agent.ping",count,{$SITE_AVAILABILITY_CHECKTIME}]
Code:
{Template Site - Availability:grpavg["{HOST.NAME}","agent.ping",count,{$SITE_AVAILABILITY_CHECKTIME}].max({$SITE_AVAILABILITY_CHECKTIME})}<{$SITE_AVAILABILITY_THRESHOLD}