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Sorry for the delay in getting back to you. In a meeting all morning.

That looks to have done it. No errors.

Thank you for your help.

You may close this thread.

Here are the results [root@APNagiosXI ~]# service nagios stop Stopping nagios (via systemctl): [ OK ] [root@APNagiosXI ~]# service ndo2db stop Stopping ndo2db (via systemctl): [ OK ] [root@APNagiosXI ~]# service mysqld stop Redirecting to /bin/systemctl stop mysqld.service Failed to stop mysqld.serv...

Here is the output.

[root@APNagiosXI ~]# service ndo2db start
Starting ndo2db (via systemctl): [ OK ]
[root@APNagiosXI ~]# service ndo2db status
ndo2db is not running but subsystem locked

Here is the requested log file.

That was the page I did my initial troubleshooting from. I'll go through it again, just to make sure.

Here is the profile from that box.

I updated the OS on our Naigos instances this morning. One of them came back fine. The other one started throwing a DB error. Here it is: Databse Error A database connection error has been detected, please follow the repair prompt below. If the issue persists, please contact Nagios support. Run the ...

Just tried on both of our Nagios instances. One throws a HTTP 500 error when I go to Configure -> Configuration Wizards. The other one went through the wizard only to throw a config error when it tried to finalize.

Always something.

Thank you for the information. Good to know how it works.

It doesn't look like Win_NT will give any RRD output. Going to have to look and see if any other plug-ins will do it.

Thanks for your help.

What kind of services are these? Not all checks return perfdata. Go to Home > Service Detail, click on one of the "problem" services, go to the "Advanced" tab, and show us a screenshot of this page. Do you see RRD or XML files for these checks in "/usr/local/nagios/share/pe...

While deleting the xml & rrd files I noticed that all of the fully-graphic-functioning Hosts had files with today's date. While the non-functional Hosts had files of varying dates. I deleted all of the xml & rrd files older than 30 days. Now, it appears everything except the Windows service ...

Working on deleting some of the rrd & xml files. Here are the logs tail -25 /usr/local/nagios/var/perfdata.log 2017-11-28 10:34:09 [23862] [2] No Custom Template found for pnp-runtime (/usr/local/nagios/etc/pnp/check_commands/pnp-runtime.cfg) 2017-11-28 10:34:09 [23862] [2] Template is pnp-runti...