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  • sensors switch to unknown after a couple of days

    Posted by rkiesler on mayo 18, 2025 at 09:47

    Hi! I have a very curious problem, that’s been bugging me for at least a year now. Maybe you have an idea.

    I have a raspberry pi running pandora fms with console, database and app server ( let’s call it “mon” ). And I have a second, different raspberry pi, running various docker things ( let’s call it “app” ). On app, I have pandora agent running.

    This works great for a couple of days. Then, all of the sudden, all of the sensors in mon go to “unknown” and stay that way.

    – Enabling debug in the pandora agent of “app” tells me, that the agent has been sending the files over, they all have the extension datasent.

    – Restarting mon results in everything working again. As if nothing ever happened.

    Of course, restarting my monitoring service every couple of days does not make much sense. Also, for all of my other pandora agents, including other Raspberry Pi, that does not happen.

    What can I try?

    Thanks!

    Román replied 3 weeks, 3 days ago 2 Members · 1 Reply
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  • Román

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    mayo 19, 2025 at 09:57
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    Good morning,

    Please, make sure that the agent is not generating BADXML due to a failing execution. You can check this in the /var/spool/pandora/data_in folder with the ls -l command.

    Also make sure the server is not having thread issues that can make the XML queue inside this folder and therefore make the agent not responsive.

    best regards

    Román.