Nagios Support Forum • Upgrade Issues

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Upgrade Issues

Posted: Mon Dec 03, 2018 3:37 pm

by CameronWP

Hi:

Since upgrading to 5.5.7 we have been having some strange issues. First, we deleted a number of services from the configuration and yet they aren't removed from the dashboard. If you click on any of them the report that the object is not found. I have attached screenshots. The second issue is that notifications are being sent even if they are disabled or the event is acknowledged.

I had reported this issue before and as a possible fix run the repair_database.sh script. I thought it was resolved but all of the deleted hosts have come back again and notifications aren't behaving.

Thanks!

Re: Upgrade Issues

Posted: Mon Dec 03, 2018 3:53 pm

by lmiltchev

I have attached screenshots.

Did you forget to upload the screenshots on the forum?

Run the following commands, and show the output:

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cat /etc/*release
service nagios status
service ndo2db status
ps -ef | grep nagios.cfg | grep -v grep
grep 'NagiosRunFile=' /etc/init.d/nagios
grep 'nagios.lock' /usr/local/nagios/etc/nagios.cfg
ls -la /usr/local/nagios/var/nagios.lock
ls -la /var/run/nagios.lock

Re: Upgrade Issues

Posted: Mon Dec 03, 2018 4:00 pm

by CameronWP

Sorry, I had re-opened the issue and forgot the original screenshots. I have attached them to this reply along with the info you asked for in your reply. Thanks!

Re: Upgrade Issues

Posted: Mon Dec 03, 2018 4:16 pm

by lmiltchev

Are you using ModGearman? I see a few issues - multiple nagios processes running, two nagios.lock files in different locations, etc.

Before we proceed with troubleshooting the issue, run the following command and show the output:

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/usr/local/nagios/bin/nagios | head -3

The resolution of the problem would be different, depending on the version of Nagios Core that you are currently using.

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 8:50 am

by CameronWP

We aren't using ModGearman at all. I have attached a screenshot of the command you requested I run as well. This was a clean installation of Nagios installed about 5 years ago that has been consistently upgraded to the newest versions.

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 9:56 am

by lmiltchev

With CentOS 7 (systemd) you should be starting nagios service via the nagios.service unit file. Ideally, you should get rid of the "old" nagios init file that is left over from the old Nagios XI installs.

Let's check a few more things though. Run the following commands, and show the output:

# This is to check if you are using ramdisk (old location)

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cat /etc/sysconfig/nagios

# Viewing the nagios.service file contents

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cat /usr/lib/systemd/system/nagios.service

# This is to check if you are using ramdisk (new location)

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cat /usr/lib/systemd/system/ramdisk.service

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 11:10 am

by CameronWP

Hi:

I have attached the results of those commands.

Thanks!

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 11:59 am

by lmiltchev

OK, so you don't have the nagios.service unit file in the expected location. Run the following command just to make sure it's not somewhere else on your system:

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find / -name nagios.service

If you don't find it anywhere, do the following:

1. Stop the nagios and ndo2db service:

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service nagios stop
service ndo2db stop

Double check to make sure that there is no nagios process running:

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ps -ef | grep nagios.cfg | grep -v grep

If there is a nagios process running yet - kill it by running:

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kill -9 <PID>

2. Move the /etc/init.d/nagios file to the /tmp directory. Don't delete it yet (just in case).

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mv /etc/init.d/nagios /tmp

3. Remove nagios.lock file (if it exists):

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rm -f /var/run/nagios.lock
rm -f /usr/local/nagios/var/nagios.lock

4. Create a file named "nagios.service" in the "/usr/lib/systemd/system/" directory with contents:

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[Unit]
Description=Nagios Core 4.4.2
Documentation=https://www.nagios.org/documentation
After=network.target local-fs.target

[Service]
Type=forking
ExecStartPre=/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
ExecStart=/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
ExecStop=/usr/bin/kill -s TERM ${MAINPID}
ExecStopPost=/usr/bin/rm -f /usr/local/nagios/var/rw/nagios.cmd
ExecReload=/usr/bin/kill -s HUP ${MAINPID}

[Install]
WantedBy=multi-user.target

Save and exit.

5. Run the following commands:

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systemctl daemon-reload
systemctl enable nagios.service
systemctl start ndo2db.service
systemctl start nagios.service

6. Check the status of nagios and ndo2db service.

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systemctl status ndo2db.service
systemctl status nagios.service

Let us know if this helped.

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 1:01 pm

by CameronWP

Hi:

I performed all of those steps and it seems things started as expected although when checking the status of the nagios service it returned the following:

NagResp4.jpg

The web site is available but it continues to show deleted hosts and services.

Thanks!

Re: Upgrade Issues

Posted: Tue Dec 04, 2018 1:35 pm

by lmiltchev

Did you kill the multiple nagios processes running?

Run this:

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service nagios stop
killall nagios
rm -f /var/run/nagios.lock
rm -f /usr/local/nagios/var/nagios.lock
systemctl start nagios.service
systemctl status nagios.service

and show the output.