Recurring downtime with flex not working as expected

[poort80hs (Dave Greebe)]

Hi all,

I am wondering if i unstand the recurring downtime correctly with the ‘flexible’ checkbox.

The maintenance window is every day from 4 AM till 6:30 AM.
I have set that up in the “Recurring downtimes for services” and “Recurring downtimes for hosts”
I have configured that the downtime starts at 4:00 with a duration of 2 hours and 30 minutes, so based on that info my downtime is from 4 AM till 6:30 AM.

I only want that CheckMK will put a service in “Downtime” when that service is reporting an error so that is why i use “Flexible downtime” of 30 mins.

So this should reflect to:

• service http goes into CRIT at 4:05.
• CheckMK will put that service in “downtime”.
• After 30 minutes (length of the flexible downtime) CheckMK will check if service is still CRIT.
• It its still crit, I should get notified.

That last part, seems not to work because I see in some http service:

I checked some more and now on HOST level

Here I see that my host is also going into downtime but after a few sec. downtime is canceled.

At 8:47 I saw it in my dashboard so I fixed it but no notifications are send when the issue occured (+30m)

In my cmc.log file i see this a couple of times;
2024-05-14 00:06:41 [7] [alert helper 15297] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxxxx”: there are no alert handlers defined but not only on this host but several of them.

I do have found something but I am not sure if that is indeed the issue;
When i look for rules regarding “Notified events for service”, i saw that I didn’t had all events checked.
Might that be the cause of this all that CheckMK is not correctly notified about such kind of events of downtime starting and ending ?

[Janncek]

I have set that up in the “Recurring downtimes for services” and “Recurring downtimes for hosts”

Why are you using both, downtimes for hosts AND downtimes for services?
If you put a host in downtime, all of its services will be put into downtime as well.

Here I see that my host is also going into downtime but after a few sec. downtime is canceled.

I am a bit confused why the downtimes are always cancelled. I would set the Log level in the global settings under “Monitoring Core” - “Logging of the core” - “Downtime” to “Informational” or “Debug”. Then have a look at your cmc.log again when this happens, so you get more info.

[poort80hs (Dave Greebe)]

Updated my configuration and will wait a couple of days and when I have this issue (cancelled) again, i will put this in this post.

[poort80hs (Dave Greebe)]

I finally saw a CANCELLED in the downtime history and I checked the CMC.log and at that time in the log i see:

2024-05-30 05:27:54 [6] ending (via CANCELLED) active flexible downtime 11028474 for service “www.xxxxxxxxx.nl;HTTPS Homepage” entered at 2024-05-30 05:17:21 by a rule (Regular service maintenance), starts at 2024-05-30 04:00:00, ends at 2024-05-30 06:30:00 (recurring daily), flexible duration is 900 seconds

Together with multiple other services that are also “VIA CANCELLED”

When I look for the site in my logs, i get the following lines;

2024-05-30 04:00:04 [7] [core 27430] [fetcher pool scheduler] scheduling service “npd-prod-kub12;Check_MK” at 2024-05-30 04:01:04
2024-05-30 04:00:04 [7] [core 27430] [generic pool scheduler] unscheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:00:04
2024-05-30 04:00:04 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:10}
2024-05-30 04:00:04 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] sending 168-byte message
2024-05-30 04:00:04 [6] [fetcher pool] received header [fetch:RESULT : :67392 :]
2024-05-30 04:00:04 [6] [fetcher pool] received 67392-byte payload
2024-05-30 04:00:04 [6] [fetcher pool] received header [fetch:LOG :info :12 :]
2024-05-30 04:00:04 [6] [fetcher pool] received 12-byte payload
2024-05-30 04:00:04 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:04 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:04 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] received 147 bytes of check results, status 0
2024-05-30 04:00:04 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:00:04 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:9}
2024-05-30 04:00:04 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:01:04 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:00:04 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:01:04
2024-05-30 04:00:06 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:12 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:13 [7] [core 27430] [smartping scheduler] unscheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:00:13
2024-05-30 04:00:13 [7] [core 27430] [smartping scheduler] scheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:01:13
2024-05-30 04:00:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:00:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:04 [4] [checker pool] [service “deployment_Niped-PROD_nep4xinside_dep-nep4x-inside-gateways-questionnaire;Check_MK”] [helper 27509] [log] + EXECUTING INVENTORY PLUGINS
2024-05-30 04:01:04 [7] [core 27430] [generic pool scheduler] unscheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:01:04
2024-05-30 04:01:04 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:13}
2024-05-30 04:01:04 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] sending 168-byte message
2024-05-30 04:01:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:05 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] received 147 bytes of check results, status 0
2024-05-30 04:01:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:01:05 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:8}
2024-05-30 04:01:05 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:02:05 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:01:05 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:02:05
2024-05-30 04:01:06 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:06 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:13 [7] [core 27430] [smartping scheduler] unscheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:01:13
2024-05-30 04:01:13 [7] [core 27430] [smartping scheduler] scheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:02:13
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:01:14 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:02:05 [7] [core 27430] [generic pool scheduler] unscheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:02:05
2024-05-30 04:02:05 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:7}
2024-05-30 04:02:05 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] sending 168-byte message
2024-05-30 04:02:05 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] received 147 bytes of check results, status 0
2024-05-30 04:02:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:02:05 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:6}
2024-05-30 04:02:05 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:03:05 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:02:05 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:03:05
2024-05-30 04:02:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:02:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:02:06 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:02:13 [7] [core 27430] [smartping scheduler] unscheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:02:13
2024-05-30 04:02:13 [7] [core 27430] [smartping scheduler] scheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:03:13
2024-05-30 04:02:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:02:13 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:03:05 [7] [core 27430] [generic pool scheduler] unscheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:03:05
2024-05-30 04:03:05 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:10}
2024-05-30 04:03:05 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] sending 168-byte message
2024-05-30 04:03:05 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 28942] received 147 bytes of check results, status 0
2024-05-30 04:03:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:03:05 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:9}
2024-05-30 04:03:05 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:04:05 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:03:05 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:04:05
2024-05-30 04:03:05 [6] [fetcher pool] received header [fetch:RESULT : :74210 :]
2024-05-30 04:03:05 [6] [fetcher pool] received 74210-byte payload
2024-05-30 04:03:05 [6] [fetcher pool] received header [fetch:LOG :info :12 :]
2024-05-30 04:03:05 [6] [fetcher pool] received 12-byte payload
2024-05-30 04:03:05 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined

Here I grabbed some lines from the cmc.log at the point that my downtime might start

here another bunch of lines. OI do see every second … postponingg, currently in downtime

-05-30 04:52:12
2024-05-30 04:52:12 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:13}
2024-05-30 04:52:12 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 27505] sending 168-byte message
2024-05-30 04:52:12 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 27505] received 168 bytes of check results, status 2
2024-05-30 04:52:12 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:52:12 [7] [alert helper 27500] not sending alert of type STATECHANGE about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: hard state change to CRITICAL
2024-05-30 04:52:12 [6] starting pending flexible hot downtime 11018534 for service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” entered at 2024-05-29 17:57:09 by a rule (Regular service maintenance), starts at 2024-05-30 04:00:00, ends at 2024-05-30 06:30:00 (recurring daily), flexible duration is 900 seconds
2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: sending DOWNTIMESTART notification to its contacts
2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: spooling notification to rule based notifications

2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: setting up, problem ID 17598, delay 0sec
2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:12 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:12}
2024-05-30 04:52:12 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:53:12 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:52:12 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:53:12

2024-05-30 04:52:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime

2024-05-30 04:52:13 [7] [core 27430] [smartping scheduler] unscheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:52:13
2024-05-30 04:52:13 [7] [core 27430] [smartping scheduler] scheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:53:13

2024-05-30 04:52:13 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime

2024-05-30 04:52:14 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime

2024-05-30 04:52:15 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime

2024-05-30 04:52:16 [6] [client 0] request: COMMAND [1717037536] LOG;SERVICE NOTIFICATION: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;CRITICAL;slack;HTTP CRITICAL: HTTP/1.1 500 Internal Server Error - 2722 bytes in 0.010 second response time
2024-05-30 04:52:16 [7] [core 27430] [livestatus external] spooled command ‘LOG;SERVICE NOTIFICATION: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;CRITICAL;slack;HTTP CRITICAL: HTTP/1.1 500 Internal Server Error - 2722 bytes in 0.010 second response time’
2024-05-30 04:52:16 [5] [core 27430] Executing external command: LOG;SERVICE NOTIFICATION: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;CRITICAL;slack;HTTP CRITICAL: HTTP/1.1 500 Internal Server Error - 2722 bytes in 0.010 second response time
2024-05-30 04:52:16 [6] [fetcher pool] received header [fetch:RESULT : :62125 :]
2024-05-30 04:52:16 [6] [fetcher pool] received 62125-byte payload
2024-05-30 04:52:16 [6] [fetcher pool] received header [fetch:LOG :info :12 :]
2024-05-30 04:52:16 [6] [fetcher pool] received 12-byte payload
2024-05-30 04:52:16 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:17 [6] [client 0] request: COMMAND [1717037537] LOG;SERVICE NOTIFICATION RESULT: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;OK;slack;200: OK;200: OK
2024-05-30 04:52:17 [7] [core 27430] [livestatus external] spooled command ‘LOG;SERVICE NOTIFICATION RESULT: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;OK;slack;200: OK;200: OK’
2024-05-30 04:52:17 [5] [core 27430] Executing external command: LOG;SERVICE NOTIFICATION RESULT: dave.greebe,john.vanrossum,mick.jongejan;www.xxxxxxxxxxxx.nl;HTTPS Homepage;OK;slack;200: OK;200: OK
2024-05-30 04:52:17 [6] [fetcher pool] received header [fetch:RESULT : :25977 :]
2024-05-30 04:52:17 [6] [fetcher pool] received 25977-byte payload
2024-05-30 04:52:17 [6] [fetcher pool] received header [fetch:LOG :info :12 :]
2024-05-30 04:52:17 [6] [fetcher pool] received 12-byte payload
2024-05-30 04:52:17 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:18 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:19 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:20 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:52:36 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:52:36 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:53:11 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:12 [7] [core 27430] [generic pool scheduler] unscheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:53:12
2024-05-30 04:53:12 [7] [core 27430] obtained SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:10}
2024-05-30 04:53:12 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 27505] sending 168-byte message
2024-05-30 04:53:12 [6] [generic pool] [service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”] [helper 27505] received 168 bytes of check results, status 2
2024-05-30 04:53:12 [7] [alert helper 27500] not sending alert of type CHECKRESULT about service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: there are no alert handlers defined
2024-05-30 04:53:12 [7] [core 27430] released SerialToken{Request[www.xxxxxxxxxxxx.nl],4555} => SerialTokenFactory{4555:9}
2024-05-30 04:53:12 [7] [core 27430] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:54:12 with commandline [/omd/sites/poort80hs/lib/nagios/plugins/check_http --ssl -t 60 --onredirect=follow --sni -I ‘www.xxxxxxxxxxxx.nl’ -H ‘www.xxxxxxxxxxxx.nl’]
2024-05-30 04:53:12 [7] [core 27430] [generic pool scheduler] scheduling service “www.xxxxxxxxxxxx.nl;HTTPS Homepage” at 2024-05-30 04:54:12
2024-05-30 04:53:12 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:53:12 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:13 [7] [core 27430] [smartping scheduler] unscheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:53:13
2024-05-30 04:53:13 [7] [core 27430] [smartping scheduler] scheduling host “www.xxxxxxxxxxxx.nl” at 2024-05-30 04:54:13
2024-05-30 04:53:14 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:15 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:36 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:53:36 [7] [alert helper 27500] not sending alert of type CHECKRESULT about host “www.xxxxxxxxxxxx.nl”: there are no alert handlers defined
2024-05-30 04:53:36 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:37 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime
2024-05-30 04:53:38 [7] [notification helper 15729] service “www.xxxxxxxxxxxx.nl;HTTPS Homepage”: postponing, currently in downtime

Please let me know what more is needed.

I have much more but i think this might be enough, else let me know

kind regards
Dave