Nagios Support Forum

@raamardhani7, Ok, memory looks fine. I'm attaching a plugin that runs through all defined checks in Nagios and figures out their execution time. That might be really helpful to figure out if there's a particular check/plugin that is not working correctly and is significantly slowing down/overloading the whole system.
The plugin is attached. Put it in the /usr/local/nagios/libexec/ folder. After that search your system for status.dat file location: Copy the location path and replace it inside the plugin. Look for this line: When it's done run Now run the plugin Please upload out.txt file here.

I have personally mailed you all the command outputs.

Thank you, @raamardhani7! The output of commands look fine with one exception. There is a permissions issue, which most probably has nothing to do with your problem, but it's a good idea to fix it. Make sure the ownership/permissions of "/usr/local/nagiosxi/html/config.inc.php" is set to nagios.nagios/750.

Having said that, we haven't been able to recreate the issue in-house. As suggested by npovolenko, opening a support ticket would be the next logical step in the troubleshooting process. I needed, a remote session will be scheduled. You can open a new support ticket by accessing the URL below:

https://support.nagios.com/tickets

entering a search term, clicking "Continue", then scrolling to the bottom of the page, and clicking on "Create Support Ticket".