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Maintenance Windows not working as expected

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  • beyondtuna
    Junior Member
    • Nov 2025
    • 2

    #1

    Maintenance Windows not working as expected

    I have setup a nightly maintenance period and it's either not working or being ignored, or I am missing something. I read in another post that both the Zabbix UI, and the server need to be setup using the same time zone. That is done as are the proxy and the servers who the maintance period is configured to apply too (basically all servers are set to the same time zone). I also have seutp integration with PagerDuty to alert whenever any issue arises.

    The issue is that whenever an issue / problem happens on one of the servers durring the assigned maintenance period, it triggers pagerduty and that's waking me up in the middle of the night. I do want to be alerted if these issues happen durring normal business hours, but in the middle of the night, I don't care because sometime it's actual maintenance happening and I don't need to be woken up by standard know issues. Other monitoring application have maintenance windows and they supress all alerts durring this the assigned time period, i'm just not sure why Zabbix is not supressing these alerts.
  • troffasky
    Senior Member
    • Jul 2008
    • 565

    #2
    I can confirm that the maintenance window function in Zabbix works.
    I can't advise you any further than that, as you haven't given us anything to go on.

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    • beyondtuna
      Junior Member
      • Nov 2025
      • 2

      #3
      I found the issue. Notice that I said, “Basically, all servers are set to the same time zone.” Due to business restrictions, that time zone happens to be UTC, and I don’t live in UTC. My time conversion was off by one hour, and as a result, during that last hour, if the servers were not up, the alerts went off. I corrected the start time of the maintenance window, and now there are no more 3 AM alerts. So you are correct—the maintenance period functions properly, but only when all the times align.

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