How to spread/dispatch the checks in a Timeperiod

Hello

you could check the menu poller/engine configuration and the tab tuning

you have some automatic “spreading” and concurrency options here, beware it may cause latency if you are too restrictive (these are the default option from a fresh new poller created with the web ui wizard 23.10)

Thanks,

Here are my settings :

I have a ‘Service Interleave Factor’ = 2  maybe I should set it to the default value ?
The doc mentions : 

• s = Use a “smart” interleave factor calculation (default)

We have here 18200 services on 1200 hosts (dispatched on 3 separated pollers).

some of my older poller have an interleave factor set at 2 also, but newer created poller have “s” for smart.

I realized I hadn’t really understood your issue, but I re-read you, and I think I understand, you should try to put the “s” instead of 2, and maybe reduce the 800 concurrent check to a lower value

could you provide more information on the poller sizing :

number of cpu (vcpu, or core/thread) 

ram

the average load (if you have the central monitoring your poller, it should be there)

(as stated on the tool tips, all this is dependant on the hardware config of your poller)

and if possible a screen of the statistic page (from the admin menu, plaform status, engine statistic)

let’s keep the period on 1 week to get a smooth curves

To compare with one of my poller, with 12 vCPU, running 5300~ services, with the default 5 minutes for normal check

active check 5.3k, with 800check per minutes, over 240 hosts (mostly network device so a lot of snmp)

there are no “burst” as there is only 1 time period, 24/7, for monitoring

the load is around 4-6

i had latency and high load with only 8, and I needed to change a few options in tuning, (but this poller is one which has the interleave at 2, i’ll try to put it with “s” and see if it change things, as when I have a network problem, this poller do a lot of retries, which cause a few issues sometimes)