Question

How to monitor scalable host pool?

  • 13 January 2023
  • 3 replies
  • 46 views

Badge +2

Hello,

We have a pool of servers that respond to charge and some of them can be shutdown or started in consequence.

I don’t know how to manage this in Centreon.

We have all the hosts configured in it, with disk space usage/CPU/RAM/Ping service monitoring through NRPE (NSClient++) + the notifications in case of WARNING/CRITICAL but when the host goes down the notifications are sent but we want to avoid this.

Do somebody have already face this kind of need?

Thanks for your reply!


3 replies

Userlevel 5
Badge +17

What technology do you use for this? Is this in the cloud (e.g. autoscaling group in AWS) or on-premise (e.g. using OpenStack)?

Badge +2

Hello @rchauvel,

The servers are hosted in Azure

Userlevel 4
Badge +12

Hi @l.malherbe

Sorry if my answer seems naïve but what about disabling notifications for these hosts and making sure that in Configuration > Pollers > Engine configuration under the Check Options tab, the following parameters are set to yes for every poller:

  •  Predictive Service Dependency Checks    
  •  Predictive Host Dependency Checks    
  • Soft Service Dependencies Option

With these settings, Engine should in that case schedule host checks when a service’s state changes, and not notify for the services when the parent host is down, even if it is in SOFT down state.

NB: changing thses settings, requires exporting the pollers’ configuration and restarting (not reloading) Engine.

 

PS: tell me if you don’t feel comfortable/plainly understand with these instructions.

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