Nagios Support Forum

Posted: **Fri Apr 09, 2021 3:57 am**

Hi,

I have a service that has been in a warning state for a few weeks. I recently checked and was able to see data in the performance graph tab for this service. Now when I look at the performance graph I get the message "No data to display". Other services for this host are displaying performance graph data correctly.

What could have stopped this service producing graph data?

Thanks

Posted: **Fri Apr 09, 2021 2:00 pm**

Hi Stuart,
Please follow the KB article below to fix the issue:
https://support.nagios.com/kb/article.php?id=9

What is the output of the following command:

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lscpu

The "load_threshold = 10.0" is for single CPU.
You should double it with a dual core "load_threshold = 20", with quad core you should use "load_threshold = 40"

You should restart npcd for the changes to take effect:

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systemctl restart npcd.service

Also, don't forget to increate the timeout in "/usr/local/nagios/etc/pnp/process_perfdata.cfg":

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timeout = 40

Please check the database log (below) and see if the database crashed:

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/var/log/mariadb/mariadb.log

If so, please run the below script to fix the database:

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

You can delete everything from: /var/lib/mrtg/ Those are all temp files.

If the above steps do not resolve the issue, please upload the "profile.zip".

Best Regards,
Vinh

Nagios Support Forum

Performance Graph showing "No Data to display."

Performance Graph showing "No Data to display."

Re: Performance Graph showing "No Data to display."