Check MK (Service Check Timed Out)

CMK version: 2.0
OS version: Centos 7

Error message:

Output of “cmk --debug -vvn hostname”:

[cpu_tracking] Stop [7ff8ee323280 - Snapshot(process=posix.times_result(user=0.05999999999999983, system=0.010000000000000009, children_user=0.0, children_system=0.0, elapsed=0.599999999627471))]
[snmp] Success, execution time 91.3 sec | execution_time=91.340 user_time=0.410 system_time=0.360 children_user_time=1.960 children_system_time=0.440 cmk_time_snmp=87.640 cmk_time_agent=0.000


I would like to know why my network devices show the snmp configuration workin fine, also when i discover the services, i can see all of them, but for some reason the checkmk service goes to Timed Out:

Can some one please help me?

Thanlk you


Assuming that you’re only using SNMP; no agent, in your host configuration tell CheckMK not to use the agent:


91 seconds seems awfully long - and longer than the default check interval of 60 seconds.

Could that be the reason?

Maybe have a look here: Monitoring via SNMP - Monitoring of SNMP devices with Checkmk