Nagios xi 5.8.5 Monitoring engine not starting

Alecassa · Post by **Alecassa** » Mon Aug 02, 2021 4:41 am

Dear,

I'm new in Nagios xi, and this morning happened to restart the nagios server VM but after that the monitoring engine won't start.
https://ibb.co/Fx2Y9m8

Any idea what happened and how can I fix this? All the monitoring has of course stopped working.

Also out of the blue I'm unable to add new hosts to my environment, maybe this error in the config file management has something to do with it?

Error: Service has no hosts and/or service_description (config file '/usr/local/nagios/etc/services/WB-S218.wb.local.cfg', starting on line 16)

Thanks in advance,

Alessio

Post by **pbroste** » Mon Aug 02, 2021 9:48 am

Hello Alessio,

Thanks for reaching out and would like to take a look at the System Profile so we can see what is going on.

Hello,

Thanks for reaching out and would like to take a look at your Nagios xi System Profile so we can see what is going on.

To send us your system profile.

Login to the Nagios xi GUI using a web browser.
Click the "Admin" > "System Profile" Menu
Click the "Download Profile" button
Save the profile.zip file and send via private message

Thanks,
Perry

Alecassa · Post by **Alecassa** » Mon Aug 02, 2021 3:52 pm

Hi Perry,

Thanks for your reply, it seems that I've no authorization to send private messages. How do I get the permission?

Alessio

Alecassa · Post by **Alecassa** » Tue Aug 03, 2021 2:47 pm

Hi Perry,

It seems like I have no permission to send private messages on the forum. What can I do about it?

Alessio

pbroste wrote:Hello Alessio,

Thanks for reaching out and would like to take a look at the System Profile so we can see what is going on.

Hello,

Thanks for reaching out and would like to take a look at your Nagios xi System Profile so we can see what is going on.

To send us your system profile.

Login to the Nagios xi GUI using a web browser.

Click the "Admin" > "System Profile" Menu

Click the "Download Profile" button

Save the profile.zip file and send via private message

Thanks,
Perry

Post by **pbroste** » Tue Aug 03, 2021 4:08 pm

Hello @Alecassa

It is based on the number of replies/responses to the post, you should be able to send it now.

Thanks,
Perry

Post by **pbroste** » Wed Aug 04, 2021 10:16 am

Hello @Alecassa

Thanks for following up and sending over the System Profile and want to have you go through the following steps.

Let's find out if you have multiple instances of nagios running?

Code: Select all

ps -ef | grep bin/nagios

We will go ahead and end the running processes on /bin/nagios and bounce the services.

Code: Select all

pkill nagios

Code: Select all

service nagios stop

service nagios start

Bring up your Nagiosxi web console and make your way over to CCM:
1. Configure > Core Configuration Manager > Config File Management:
2. Running the "Write Config Files" tool in the exact same order - Delete->Write->Verify->Apply Configuration
3. Stopping/starting services.

Code: Select all

service nagios stop
service nagios start

4. CCM pre-flight check:

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg[/code]

Looking for following results:
Checked 0 service dependencies
Checked 0 host dependencies
Checked 8 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors: 0

If you are still receiving this message:

Error: Service has no hosts and/or service_description (config file '/usr/local/nagios/etc/services/WB-S218.wb.local.cfg', starting on line 16)

Use your editor to edit: '/usr/local/nagios/etc/services/WB-S218.wb.local.cfg' look to see what service is on line 16 to figure out what service check is failing and to what host it belongs.

Change the line on the failing service from "register 1" to "register 0" and save. By making this change to the 'WB-S218.wb.local.cfg' you will need to run through the config import. And Rinse/repeat....

Thanks,
Perry

Post by **pbroste** » Wed Aug 04, 2021 10:59 am

Hello @Alecassa

Also, to follow up on my previous post, to let you know that you can also go ahead and make the necessary changes on the services or the related host from the CCM > Configure > Core Configuration Manager on web GUI as a more desirable option.

Thanks,
Perry

Alecassa · Post by **Alecassa** » Wed Aug 04, 2021 3:53 pm

Hi Perry,

Thanks for your reply.

Nothing that you suggested seemed to work... please see screenshots.

Also i don't really understand what step 4 is, and what am I supposed to do with the pre-flight check?

Apply configuration won't work either.

This one about line 16, error says no host/service description but all I see is the service getting defined?

Thanks

Alessio

pbroste wrote:Hello @Alecassa

Thanks for following up and sending over the System Profile and want to have you go through the following steps.

Let's find out if you have multiple instances of nagios running?
Code: Select all
ps -ef | grep bin/nagios
We will go ahead and end the running processes on /bin/nagios and bounce the services.
Code: Select all
pkill nagios
Code: Select all
service nagios stop

service nagios start
Bring up your Nagiosxi web console and make your way over to CCM:
1. Configure > Core Configuration Manager > Config File Management:
2. Running the "Write Config Files" tool in the exact same order - Delete->Write->Verify->Apply Configuration
3. Stopping/starting services.
Code: Select all
service nagios stop
service nagios start
4. CCM pre-flight check:
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg[/code]

Looking for following results:
Checked 0 service dependencies
Checked 0 host dependencies
Checked 8 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors: 0
If you are still receiving this message:

Error: Service has no hosts and/or service_description (config file '/usr/local/nagios/etc/services/WB-S218.wb.local.cfg', starting on line 16)
Use your editor to edit: '/usr/local/nagios/etc/services/WB-S218.wb.local.cfg' look to see what service is on line 16 to figure out what service check is failing and to what host it belongs.

Change the line on the failing service from "register 1" to "register 0" and save. By making this change to the 'WB-S218.wb.local.cfg' you will need to run through the config import. And Rinse/repeat....

Thanks,
Perry

Post by **pbroste** » Wed Aug 04, 2021 5:12 pm

Hello @Alecassa

I don't see a host or a service config listed for 'WB-S218.wb.local.cfg' in '/usr/local/nagios/etc/... or your database.

Let's have you run through the database repair and follow up with the results on that.

Code: Select all

/usr/local/nagiosxi/scripts/repair_databases.sh

Thanks,
Perry

Post by **pbroste** » Thu Aug 05, 2021 10:08 am

Hello @Alecassa

I do not see any host or service configuration for WB-S218.wb.local in the configs, and I don't see anything listed in the database as well.

Let's go ahead and have you run a repair on your database and let me know the results.

Code: Select all

/usr/local/nagiosxi/scripts/repair_databases.sh

Thanks,
Perry

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