Zabbix 4.2.6 fake reboot alert

[Leandro Choinski]

Good evening! I am experiencing problems with reboot false positives. All servers are triggering the reboot trigger, when in fact the host is up. What can it be?

Alert




Trigger



Detail: Uptime of the server informs that the last reboot was 9 days ago.

[Markku]

Hi, what is your item interval?

The "change(0)<600" trigger will activate if your uptime item interval is shorter that 10 minutes.

And, once it is activated (in reboot as well) it only deactivates if the interval is longer than 800 seconds...

Markku

[Markku]

Usually the uptime trigger change(0)<0 is used, to detect if uptime counter went to zero.

Markku

[Alex.polter]

Hello, Leandro

Maybe if you provide some more info about your agent, server, monitored server and zabbix server like version, etc, would help you.

But for instance, I recommend you to make new trigger using UserParameter or feed some text file using uptime + awk and then create a new item if you cant discover where is the fault;

Run 'uptime' in your affected server and check the result, it match with zabbix alert?