Slow Nagios XI

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Slow Nagios XI

Postby Katkota » Fri Oct 18, 2019 10:11 pm

Hello folks;
My Nagios XI server (version 5.6.7) is slow to respond and sometimes we lose GUI access to it until we reboot (It's VM). and it keeps happening and i noticed that ndo2db process & mysqld process both are consuming high CPU especially ndo2db process.

Any idea what to do to fix that issue? currently we have to reboot the VM in order to bring it back to work but we can't sustain doing that.

Thank you in advance
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Re: Slow Nagios XI

Postby mbellerue » Mon Oct 21, 2019 10:20 am

We have a couple of docs on performance tuning.
https://assets.nagios.com/downloads/nag ... ios-XI.pdf
https://assets.nagios.com/downloads/nag ... uning.html

Those would be worth checking out. How many service checks are you performing, and what virtual hardware do you have assigned to your Nagios VM?
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Re: Slow Nagios XI

Postby Katkota » Tue Oct 22, 2019 7:59 am

The VM specs are :
16 GB RAM
8 vCPU
I have a little over 7000 services & about 950 servers configured to use Nagios
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Re: Slow Nagios XI

Postby mbellerue » Tue Oct 22, 2019 12:40 pm

This document may be helpful, with so many service checks.
https://assets.nagios.com/downloads/nag ... giosXI.pdf

Also, with 7k service checks, and almost 1k hosts, you may need more memory and CPU. Can you post the results of these commands,

Code: Select all
sar 1 10
sar -r 1 10
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