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Monitor a constant change in item's value

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  • DzonyBravo
    Junior Member
    • Mar 2024
    • 2

    #1

    Monitor a constant change in item's value

    Hello, I've been trying to figure out a way to fire a trigger when an item's value has been rising continously for 30 minutes. I know that there's a function monoinc() but it's only for Zabbix 6> and I'm using Zabbix 5. Is there a way to 'replicate' such functionality using basic Zabbix functions?

    I've been working around using something like : last() >= max(#30m) but the case is that the value might rise for 15 minutes, then drop to 0 and then start rising again for the next 10 minutes and this trigger might not work.

    I don't want to brute force it (check if #1 value was > than #2 AND #2 value > than #3 etc.) but I can't figure it out. Maybe there's a way using the 'Simple Change' from preprocessing?
  • cyber
    Senior Member
    Zabbix Certified SpecialistZabbix Certified Professional
    • Dec 2006
    • 4807

    #2
    Thinking out loud... if you would save the "change", it can be either positive or negative... then you can count the values during last half an hour, which are negative... if there is none, it has always been a rise and no drops... ??

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    • DzonyBravo
      Junior Member
      • Mar 2024
      • 2

      #3
      I've noticed that 'Simple Change' in Preprocessing doesn't allow to store negatives, it just discards it.

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      • cyber
        Senior Member
        Zabbix Certified SpecialistZabbix Certified Professional
        • Dec 2006
        • 4807

        #4
        Ooooh... completely forgot that..

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