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Question

Tweaking centreon

  • August 17, 2026
  • 3 replies
  • 28 views
M
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Hi,

I have for a couple months now had issues mainly with the hosts and ICMP. Hosts are pinged every minute to get the UP/DOWN status. I’ve noticed that every other ping is basically failing in a “CRITICAL”. I have tried manually to ping some of these hosts from the same server and there are no network related issues.

The issues seem to mainly be related to performance. For services UP/DOWN these checks work better but they are scanned every 5 minutes.

Occassionally there can be a PROCESS TIMEOUT. 

I’m running centreon 24.10.25 on Debian 12 with 4 vCPU and 16 GB memory.

We have 478 hosts in our centreon environment and 2052 services. This is running on one cenral poller.

I’m thinking about setting up one more poller to see if it might solve things.

The “tuning” tab on the engine configuration looks like this.

 

Engine statistics:
 

 

3 replies

Alexandre Belhomme
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I wonder if the underlying engine has issues running your ping commands as they are run by the same local user.

I had some issues when using lots and lots of ping services on the same poller What if your services regularly fail in batch out of nowhere ? | Community

Maybe on your end if you lower the amount of concurent commands, but you will probably end up with some check latency.

The solution to use some other dedicated poller could be the solution if this is the issue you are facing.

Hope you can figure it out 🙏

M
Forum|alt.badge.img+3

I wonder if the underlying engine has issues running your ping commands as they are run by the same local user.

I had some issues when using lots and lots of ping services on the same poller What if your services regularly fail in batch out of nowhere ? | Community

Maybe on your end if you lower the amount of concurent commands, but you will probably end up with some check latency.

The solution to use some other dedicated poller could be the solution if this is the issue you are facing.

Hope you can figure it out 🙏

Yeah I saw that and made the change you recommended. I think it has solved some issues since a lot of services were timing out in unknown status.

Do you think changing the “Maximum concurrent service checks” value to a lower value will have an impact? Do you need to restart the engine after the change?

Alexandre Belhomme
Forum|alt.badge.img+13

Do you think changing the “Maximum concurrent service checks” value to a lower value will have an impact

Yes it will, as it will lower the amount of concurent programs run by the centreon engine, but as mentioned this will provoque some lag as you “wish” to have some checks run every minute and your system not allowing so many programs or files to be opened at the same time.

Lowering the concurence is a solution, allowing you to run more with your server, or having a second server to run commands is also a solution.

 

Do you need to restart the engine after the change?

You do need to restart the centengine service after the change of the systemd service yes.


 

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