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Facing Issues after updating NagiosXI to 2026R1

Posted: Thu Oct 30, 2025 9:14 am
by DileepKumar
Hi,

I have been using Nagios only from last 3 months and I have upgraded my Nagios XI to latest version available i.e., 2026R1 on October 10th. After updating the Nagios XI, everything is normal and successful.

But after the upgradation, I have observed that the nagios.service on my Nagios server is being deactivating... and all the service checks are being changed to critical state(i'm using passive checks mostly). It happened already thrice after the upgradation and never before the update.

During the issue for the last 3 times, I have restarted the whole stack (nagios, httpd, mysqld etc) but this issue seems to be resolving itself after 30-60 min. I'm not sure whether this issue is because of update but I'm facing this only after the update.

Is anyone ever faced similar issue, Is the issue is because of my configuration or because of update?

Please help me on this. I have not yet raised any support request because we are not in production yet. but I'm sure this will cause major issues.

Re: Facing Issues after updating NagiosXI to 2026R1

Posted: Thu Oct 30, 2025 4:42 pm
by zrobinson
Hi DileepKumar,

Sorry to hear you are facing issues with 2026R1! Are there any relevant error logs located in /var/log/httpd/error_log ?
It may also help to know which Nagios XI version you are upgrading to 2026R1 from, and what operating system is being used to host the server.

Thanks,
Zach

Re: Facing Issues after updating NagiosXI to 2026R1

Posted: Fri Oct 31, 2025 2:20 pm
by DileepKumar
Hi @zrobinson

Sorry for not able to reply you with quotes, as it's saying account is blocked.

Please find the below details for Nagios XI version and Nagios server OS details.
Upgrading : nagiosxi-deps-el9-2026r1-1.noarch
Cleanup : nagiosxi-deps-el9-2024r2.1-1.noarch


OS details:
cat /etc/os-release
NAME="Oracle Linux Server"
VERSION="9.6"
ID="ol"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="9.6"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Oracle Linux Server 9.6"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:9:6:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://github.com/oracle/oracle-linux"
ORACLE_BUGZILLA_PRODUCT="Oracle Linux 9"
ORACLE_BUGZILLA_PRODUCT_VERSION=9.6
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=9.6


Please let me know, If any other details are required.

Thank You

Re: Facing Issues after updating NagiosXI to 2026R1

Posted: Tue Nov 04, 2025 3:44 pm
by zrobinson
Hi @DileepKumar

I would suggest opening a ticket with out support team. They will be able to identify and resolve the issues you are facing with the upgrade.

Thanks,
Zach

Re: Facing Issues after updating NagiosXI to 2026R1

Posted: Wed Nov 05, 2025 8:57 am
by DileepKumar
Sure [user]@zrobinson[/user],

I will definitely do this immediately after getting this same issue as it will be easy to collect the logs at the same time.

Thank you

Re: Facing Issues after updating NagiosXI to 2026R1

Posted: Wed Dec 03, 2025 8:56 am
by DileepKumar
I have just seen that passive data which I'm receiving at /usr/local/nagios/var/spool/checkresults/ are not being cleared even after 25-30 min which is causing stale state ouptputs

I will be raising a case but before that is there any idea why this is being occurred and what's the solution

Below is the passive file permissions level

-rwxrwx--- 1 apache nagcmd 342 Dec 3 18:54 csuDaoh
-rw-r--r-- 1 apache nagios 0 Dec 3 18:54 csuDaoh.ok
-rwxrwx--- 1 apache nagcmd 343 Dec 3 18:54 cUGEwZl
-rw-r--r-- 1 apache nagios 0 Dec 3 18:54 cUGEwZl.ok
-rwxrwx--- 1 apache nagcmd 345 Dec 3 18:54 cZ8bvhk
-rw-r--r-- 1 apache nagios 0 Dec 3 18:54 cZ8bvhk.ok


Below is the permissions of checkresults directory
drwxrwsr-x. 2 nagios nagios 4886528 Dec 3 19:28 checkresults


Anyhow, please help on this