Hi Andreas,
You mentioned previously:
I think the problem is as also mentioned before that the Nagios core don’t wait to finish the running checks or kills the running checks actively.
Would it improve replacing the nagios core binaries with newer ones?
CheckMK V2 is packed with Nagios 3.5.1 from 2013.
Do you know if there is any plan for upgrading it on newer v2 releases?
Is there any documentation for manually upgrading it?
I was thinking while writing this, what version is packed with the old stable v1.6?, and after checking found it is exactly the same Nagios version, 3.5.1, so I guess Nagios should still behave as in previous versions, pointing to changes done in CheckMK causing this issue.
You also mention some other installations with over 100 hosts and not facing this issue.
May I ask what was the initial version installed? I’m thinking if it could be some cache generated from previous versions that could have caused this issue.
Worth trying removing all the cache files?
I’d like to keep the graphs data though, if there are any recommended steps for doing this.
Thanks everyone for the input.
Regards.