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Host Availability and SLA Report incorrect vs state history
Posted: Mon May 04, 2026 5:39 am
by PeterDK2
Today we had a host in Nagios that was down for 9 hours.
We can see this in the host state history (and all notification we got)
Host State History.png
But both SLA report and Host availability show 100% UP.
Host Availability.png
Host SLA Report.png
How is that possible?
Re: Host Availability and SLA Report incorrect vs state history
Posted: Mon May 04, 2026 3:08 pm
by zrobinson
Hi @PeterDK2,
I am sorry to hear that your reports were returning incorrect data. I have filed an internal report which will be investigated and resolved. I will keep you updated on our findings regarding this. Please let us know if you have any further questions or feedback.
- Zach
Re: Host Availability and SLA Report incorrect vs state history
Posted: Mon May 04, 2026 4:07 pm
by kfanselow
Hi PeterDK2,
This may be an indicator of database corruption and you might want to open a case with the support team. They can dig into the specifics of your system and provide a better answer than we can on a public forum.
https://supportportal.nagios.com/s/arti ... ing-a-Case
Thanks and best regards
Re: Host Availability and SLA Report incorrect vs state history
Posted: Tue May 05, 2026 2:38 am
by PeterDK2
Ok, I created a case. I will place a summary of the result in this post as well when it's solved
Re: Host Availability and SLA Report incorrect vs state history
Posted: Wed May 06, 2026 3:08 am
by PeterDK2
It was a permissions issue on the archived log files:
Solution:
chown nagios:nagios /usr/local/nagios/var/nagios.log
chown nagios:nagios /usr/local/nagios/var/archives/*
chmod 664 /usr/local/nagios/var/nagios.log
chmod 664 /usr/local/nagios/var/archives/*
Kind regards,
Peter