Nagios Support Forum

Hello,

We are planning to update the our NagiosXI version 5.5.10 to the Nagios latest version and our Nagios is crm two node cluster with DRBD storage.

So kindly provide the procedure for upgrading the nagios XI version with this HA enviornment.

Also I need to know, Is there any issue with the drbd packages during the upgrade.

Hi,

My best recommendation here is to utilize the test server activation included with your Nagios XI license to test out the upgrade before making any changes to your production server. We currently do not QA this setup since it's not incorporated as a feature of Nagios XI.

https://support.nagios.com/kb/article.php?id=145

If your looking for a fully supported implementation, I would recommend contacting Linbit directly.

https://www.linbit.com/tech-guide/ha-na ... -on-rhel7/

More information about high availability options for Nagios XI are in the following guide.

How To Achieve High Availability

Let us know if you have any questions.

Hello,

I have tested it on the test server and after upgrade I can see the ndo2db service is not there so the cluster resource shows error. So kindly let me which service is replaced by this ndo2db service, so that I can add this to the cluster resources. Also Is the performance graph should work with out this ndo2db ?

Hi,

We re-wrote the backend database in 5.7.x, so there is no longer a separate service the needs to be managed, it's handled by the nagios service now using ndo3.

Let me know if you have any more questions.

Hello,

For a two node nagios cluster with shared storage for mysql with drbd. Do we need to update the nagosxi on both node or on only one node. Could you recommend which one is the best?

Also kindly provide the steps for offloading MySQL db for new nagios version 5.7.2.

HI,

No problem. Here are the instructions for offloading the database.

Offloading MySQL to Remote Server

As far as handling upgrading the nodes, this is out scope for product support, but it seems logical that each node should be running the same version.

Hello
This doc is based on ndo2db. Now on the new version it's not there.
So kindly assist on this.

Hi,

Thanks for pointing that out to us. We're getting that updated right now. In the meantime, I can help you get this setup. The instructions are essentially the same, but 5.7.x no longer uses the ndo2bd service. So on page 12 of the guide, for the Cent 7 case, you'll no longer need to stop this service. That part can be skipped, the other major change is the new configuration file for ndo3. Change to: Instead of adjusting this file for the ndo2db settings: add the new server ip address and authentication credentials to the following file. This is the configuration file for the new backend databse. Let me know if you any questions or need any assistance.
Reference:
https://assets.nagios.com/downloads/nag ... Server.pdf